Regulation No. 67-01

Name:Regulation No. 67-01
Description:Liquid Petroleum Gas (LPG) Vehicles.
Official Title:Uniform Provisions Concerning the: I. Approval of Specific Equipment of Motor Vehicles Using Liquefied Petroleum Gases in their Propulsion System; II. Approval of a Vehicle Fitted with Specific Equipment for the Use of Liquefied Petroleum Gases in its Propulsion System with Regard to the Installation of such Equipment.
Country:ECE - United Nations
Date of Issue:1987-05-25
Amendment Level:01 Series, Supplement 14
Number of Pages:152
Vehicle Types:Bus, Car, Component, Heavy Truck, Light Truck
Subject Categories:Miscellaneous
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Keywords:

test, pressure, paragraph, annex, container, valve, temperature, approval, type, regulation, lpg, hose, maximum, tests, requirements, provisions, gas, tensile, vehicle, iso, equipment, containers, unit, fuel, relief, leakage, change, flow, figure, device, elongation, strength, resistance, class, filling, material, service, component, conditions, classification, system, amendments, series, weld, break, means, operating, design, period, specific

Text Extract:

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E/ECE/324
) Rev.1/Add.66/Rev.4
E/ECE/TRANS/505 )
October 16, 2014
STATUS OF UNITED NATIONS REGULATION
ECE 67-01
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
I. SPECIFIC EQUIPMENT OF VEHICLES OF CATEGORY M AND N USING LIQUEFIED
PETROLEUM GASES IN THEIR PROPULSION SYSTEM
II.
VEHICLES OF CATEGORY M AND N FITTED WITH SPECIFIC EQUIPMENT FOR THE USE OF
LIQUEFIED PETROLEUM GASES IN THEIR PROPULSION SYSTEM WITH REGARD TO THE
INSTALLATION OF SUCH EQUIPMENT
Incorporating:
00 series of amendments
Date of Entry into Force: 01.07.87
Supplement 1 to the 00 series of amendments
Date of Entry into Force: 09.02.94
01 series of amendments (Supplement 2 to the 00 series)
Date of Entry into Force: 13.11.99
01 series of amendments (Corr. 1 to Supplement 2 to the 00 series)
Date of Entry into Force: 10.11.99
Supplement 1 to the 01 series of amendments
Date of Entry into Force: 29.03.01
Corr. 1 to the 01 series of amendments
Dated: 14.03.01
Corr. 2 to the 01 series of amendments
Dated: 23.08.01
Supplement 2 to the 01 series of amendments
Date of Entry into Force: 16.07.03
Corr. 1 to Supplement 2 to the 01 series of amendments
Dated: 13.05.04
Supplement 3 to the 01 series of amendments
Date of Entry into Force: 13.11.04
Supplement 4 to the 01 series of amendments
Date of Entry into Force: 04.04.05
Supplement 5 to the 01 series of amendments
Date of Entry into Force: 23.06.05
Supplement 6 to the 01 series of amendments
Date of Entry into Force: 18.01.06
Supplement 7 to the 01 series of amendments
Date of Entry into Force: 02.02.07
Supplement 8 to the 01 series of amendments
Date of Entry into Force: 03.02.08
Supplement 9 to the 01 series of amendments
Date of Entry into Force: 19.08.10
Supplement 10 to the 01 series of amendments (including Erratum)
Date of Entry into Force: 26.07.12
Supplement 11 to the 01 series of amendments
Date of Entry into Force: 15.07.13
Supplement 12 to the 01 series of amendments
Date of Entry into Force: 03.11.13
Supplement 13 to the 01 series of amendments
Date of Entry into Force: 10.06.14
Supplement 14 to the 01 series of amendments
Date of Entry into Force: 09.10.14

REGULATION No. 67-01
UNIFORM PROVISIONS CONCERNING THE
I. APPROVAL OF SPECIFIC EQUIPMENT OF VEHICLES OF CATEGORIES M AND N USING
LIQUEFIED PETROLEUM GASES IN THEIR PROPULSION SYSTEM
II.
APPROVAL OF VEHICLES OF CATEGORIES M AND N FITTED WITH SPECIFIC EQUIPMENT
FOR THE USE OF LIQUEFIED PETROLEUM GASES IN THEIR PROPULSION SYSTEM WITH
REGARD TO THE INSTALLATION OF SUCH EQUIPMENT
CONTENTS
REGULATION
1.
Scope
2.
Definition and Classification of Components
PART I – Approval of Specific Equipment of Vehicles of Category M and N Using Liquefied Petroleum
Gases in their Propulsion System
3.
Application for Approval
4.
Markings
5.
Approval
6.
Specifications Regarding the Various Components of the LPG Equipment
7.
Modifications of a Type of LPG Equipment and Extension of Approval
8.
(Not Allocated)
9.
Conformity of Production
10.
Penalties for Non-conformity of Production
11.
Transitional Provisions Regarding the Various Components of the LPG Equipment
12.
Production Definitively Discontinued
13.
Names and Addresses of Technical Services Responsible for Conducting Approval Tests,
and of Type Approval Authorities
PART II – Approval of Vehicles of Categories M and N fitted with Specific Equipment for the Use of
Liquefied Petroleum Gases in their Propulsion System with Regard to the Installation of Such
Equipment
14.
Definitions
15.
Application for Approval
16.
Approval
17.
Requirements for the Installation of Specific Equipment for the use of Liquefied Petroleum
Gases in the Propulsion System of a Vehicle
18.
Conformity of Production
19.
Penalties for Non-conformity of Production
20.
Modification and Extension of Approval of a Vehicle Type
21.
Production Definitively Discontinued
22.
Transitional Provisions Regarding the Installation of Various Components of the LPG
Equipment and the Type Approval of a Vehicle fitted with Specific Equipment for the use of
Liquefied Petroleum Gas in its Propulsion System with Regard to the Installation of such
Equipment
23.
Names and Addresses of Technical Services Responsible for Conducting Approval Tests,
and of Type Approval Authorities

REGULATION No. 67-01
UNIFORM PROVISIONS CONCERNING THE
I. APPROVAL OF SPECIFIC EQUIPMENT OF VEHICLES OF CATEGORIES M AND N USING
LIQUEFIED PETROLEUM GASES IN THEIR PROPULSION SYSTEM
II.
APPROVAL OF VEHICLES OF CATEGORIES M AND N FITTED WITH SPECIFIC EQUIPMENT
FOR THE USE OF LIQUEFIED PETROLEUM GASES IN THEIR PROPULSION SYSTEM WITH
REGARD TO THE INSTALLATION OF SUCH EQUIPMENT
1. SCOPE
This Regulation applies to:
1.1.
PART I.
Approval of specific equipment of vehicles of Category M and N
using
liquefied petroleum gases in their propulsion system
1.2. PART II. Approval of vehicles of Category M and N fitted with specific equipment for
the use of liquefied petroleum gases in their propulsion system with regard to
the installation of such equipment
2. DEFINITION AND CLASSIFICATION OF COMPONENTS
LPG components for use in vehicles shall be classified with regard to the maximum
operating pressure and function, according to Figure 1.
CLASS 0
CLASS 1
CLASS 2
High pressure parts including tubes and fittings containing liquid LPG with a
pressure >3,000kPa.
High pressure parts including tubes and fittings containing liquid LPG at vapour
pressure or increased vapour pressure up to 3,000kPa.
Low pressure parts including tubes and fittings containing vaporised LPG with
a maximum operating pressure below 450kPa and over 20kPa above
atmospheric pressure.
CLASS 2A Low pressure parts for a limited pressure range including tubes and fittings
containing vaporised LPG with a maximum operating pressure below 120kPa
and over 20kPa above atmospheric pressure.
CLASS 3
Shut-off valves and pressure relief valves, when operating in the liquid phase.
LPG components designed for a maximum operating pressure below 20kPa above
atmospheric pressure are not subjected to this Regulation.
A component can consist of several parts, each part classified in his own class with regard
to maximum operating pressure and function.

2.1. "Pressure" means relative pressure versus atmospheric pressure, unless otherwise stated.
2.1.1. "Service pressure" means the settled pressure at a uniform gas temperature of 15°C.
2.1.2. "Test pressure" means the pressure to which the component is subjected during the
approval test.
2.1.3. "Working pressure (WP)" means the maximum pressure to which the component is
designed to be subjected and on the basis of which its strength is determined.
2.1.4. "Operating pressure" means the pressure under normal operating conditions.
2.1.5. "Maximum operating pressure" means the maximum pressure in a component which
might arise during operation.
2.1.6. "Classification pressure" means the maximum allowable operating pressure in a
component according to its classification.
2.2. "Specific equipment" means:
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
(l)
(m)
(n)
(o)
(p)
(q)
(r)
the container,
the accessories fitted to the container,
the vaporiser/pressure regulator,
the shut-off valve,
the gas injection device or injector or gas mixing piece,
the gas dosage unit, either separate or combined with the gas injection device,
flexible hoses,
filling unit,
non-return valve,
gas-tube pressure relief valve,
filter unit,
pressure or temperature sensor,
fuel pump,
service coupling,
electronic control unit,
fuel rail,
pressure relief device;
Multi-component

(g)
(h)
(i)
(j)
gas-tight housing;
power supply bushing;
non-return valve;
pressure relief device.
2.5.1. "80% stop valve" means a device that limits the filling at maximum 80% of the capacity of
the container.
2.5.2. "Level indicator" means a device to verify the level of liquid in the container.
2.5.3. "Pressure relief valve (discharge valve)" means a device to limit the pressure build-up in
the container.
2.5.3.1. "Pressure relief device" means a device aimed to protect the container from burst which
can occur in case of fire, by venting the LPG contained.
2.5.4. "Remotely controlled service valve with excess flow valve" means a device which
allows the establishment and interruption of LPG supply to the evaporator/pressure
regulator; remotely controlled means that the service valve is controlled by the electronic
control unit; when the engine of the vehicle is not running the valve is closed; an excess flow
valve means a device to limit the flow of LPG.
2.5.5. "Fuel pump" means a device to establish the supply of liquid LPG to the engine by
increasing the pressure of the container with the fuel pump supply pressure.
2.5.6. "Multivalve" means a device consisting of all or part of the accessories mentioned in
Paragraphs 2.5.1. to 2.5.3. and 2.5.8.
2.5.7. "Gas-tight housing" means a device to protect the accessories and to vent any leakages
to the open air.
2.5.8. Power supply bushing (fuel pump/actuators/fuel level sensor).
2.5.9. "Non-return valve" means a device to allow the flow of liquid LPG in one direction and to
prevent the flow of liquid LPG in the opposite direction.
2.6. "Vaporiser" means a device intended to vaporise LPG from a liquid to a gaseous state.
2.7. "Pressure regulator" means a device intended for reducing and regulating the pressure of
liquefied petroleum gas.
2.8. "Shut-off valve" means a device to cut off the flow of LPG.
2.9. "Gas-tube pressure relief valve" means a device to prevent the pressure build up in the
tubes above a pre-set value.
2.10. "Gas injection device or injector or gas mixing piece" means a device which establishes
the liquid or vaporised LPG to enter the engine.
2.11. "Gas dosage unit" means a device which meters and/or distributes the gas flow to the
engine and can be either combined with the gas injection device or separate.

PART I
APPROVAL OF SPECIFIC EQUIPMENT OF VEHICLES OF CATEGORY M AND N USING
LIQUEFIED PETROLEUM GASES IN THEIR PROPULSION SYSTEM
3. APPLICATION FOR APPROVAL
3.1. The application for approval of specific equipment shall be submitted by the holder of the
trade name or mark or by his duly accredited representative.
3.2. It shall be accompanied by the undermentioned documents in triplicate and by the following
particulars:
3.2.1. A detailed description of the type of the specific equipment (as specified in Annex 1),
3.2.2. A drawing of the specific equipment, sufficiently detailed and on an appropriate scale,
3.2.3. Verification of compliance with the specifications prescribed in Paragraph 6 of this
Regulation;
3.3. At the request of the Technical Service responsible for conducting approval tests, samples
of the specific equipment shall be provided.
Supplementary samples shall be supplied upon request.
4. MARKINGS
4.1. All components submitted for approval shall bear the trade name or mark of the
manufacturer and the type; and for non-metallic components also the manufacturing month
and year; this marking shall be clearly legible and indelible.
4.2. All equipment shall have a space large enough to accommodate the approval mark including
the classification of the component (see Annex 2A) and in case of components of Class 0
also the working pressure (WP); this space shall be shown on the drawings referred to in
Paragraph 3.2.2. above.

5.4.1. A circle surrounding the Letter "E" followed by the distinguishing number of the country
which has granted approval.
5.4.2. The number of this Regulation, followed by the Letter "R", a dash and the approval number
to the right of the circle prescribed in Paragraph 5.4.1. above. This approval number
consists of the component type approval number which appears on the certificate completed
for this type (see Paragraph 5.2. above and Annex 2B) preceded by two figures indicating
the sequence of the latest series of amendments to this Regulation.
5.5. The approval mark shall be clearly legible and be indelible.
5.6. Annex 2A to this Regulation gives examples of the arrangement of the aforesaid approval
mark.
5.7. In case of a Class 0 component also the working pressure shall be marked in the vicinity of
the approval mark mentioned in Paragraph 5.4. above.
6.
SPECIFICATIONS
REGARDING
THE
VARIOUS
COMPONENTS
OF
THE
LPG
EQUIPMENT
6.1. General Provisions
The specific equipment of vehicles using LPG in their propulsion system shall function in a
correct and safe way.
The materials of the equipment which are in contact with LPG shall be compatible with it.
Those parts of equipment whose correct and safe functioning is liable to be influenced by
LPG, high pressure or vibrations has to be submitted to relevant test procedures described
in the Annexes to this Regulation. In particular the provisions of Paragraphs 6.2. to 6.13.
below are to be fulfilled.
The installation of LPG-equipment approved by this regulation shall comply with relevant
electromagnetic compatibility (EMC) requirements according to Regulation No. 10, 02 series
of amendments, or equivalent.
6.2. Provisions Regarding Containers
The LPG containers shall be type-approved pursuant to the provisions laid down in
Annex 10 to this Regulation.
6.3. Provisions Regarding Accessories Fitted to the Container
6.3.1. The container shall be equipped with the following accessories, which may be either
separate or combined (multivalve(s)):
6.3.1.1. 80% stop valve;
6.3.1.2. level indicator;

6.4. - 6.14. Provisions Regarding other Components
The other components, which are shown in Table 1, shall be type approved pursuant to the
provisions laid down in the Annexes which can be determined from the table.
Table 1
Paragraph Component Annex
6.4. Fuel pump 4
6.5. Vaporiser
Pressure regulator
6.6. Shut-off valves
Non-return valves
Gas-tube pressure relief valves
Service couplings
6
7
6.7. Flexible hoses 8
6.8. Filling unit 9
6.9. Gas injection devices/
Gas mixing piece
or
Injectors
11
6.10. Gas dosage units 12
6.11. Pressure sensors
Temperature sensors
13
6.12. Electronic control unit 14
6.13. LPG filter units 5
6.14. Pressure relief device 3
6.15. General Design Rules Regarding Components
6.15.1. Provisions Regarding the 80% Stop Valve
6.15.1.1. The connection between the float and the closing unit of the 80% stop valve shall not be
deformed under normal conditions of use.
6.15.1.2. If the 80% stop valve of the container comprises a float, the latter shall withstand an outside
pressure of 4,500kPa.

6.15.5. A component consisting of both high pressure and low pressure parts shall be so designed
to prevent a pressure build up in the low pressure part above 2.25 times the maximum
working pressure for which it has been tested. Components connected directly to the tank
pressure shall be designed for the classification pressure of 3,000kPa. Venting to the motor
compartment or outside of the vehicle is not allowed.
6.15.6. Specific Provisions to Prevent any Gas Flow
6.15.6.1. Pumps of Class 1 shall be so designed that the outlet pressure never exceeds 3,000kPa,
when there is e.g. blocking of the tubing or not opening of a shut-off valve. This can be
realised by switching off the pump or by re-circulating to the container.
Pumps of Class 0 shall be so designed that the outlet pressure never exceeds the WP of
the components downstream of the pump, when there is, e.g. blocking of the tubing or not
opening of a shut-off valve. This can be realized by switching off the pump or by
recirculation to the container.
6.15.6.2. The pressure regulator/vaporiser shall be so designed as to prevent any gas flow when the
regulator/vaporiser unit is supplied with LPG at a pressure ≤4,500kPa when the regulator is
not operating.
6.15.7. Provisions Regarding the Gas Tube Relief Valve
6.15.7.1. Gas-tube pressure relief valves of Class 1 shall be so designed as to open at a pressure of
3,200 ± 100kPa.
Gas-tube pressure relief valves of Class 0 shall be so designed as to open at a pressure of
1.07WP of the pipe ±100kPa (if needed).
6.15.7.2. Gas-tube pressure relief valves of Class 1 shall not have internal leakage up to 3,000kPa.
Gas-tube pressure relief valves of Class 0 shall not have internal leakage up to WP of the
pipe.
6.15.8. Provisions Regarding the Pressure Relief Valve (Discharge Valve)
6.15.8.1. The pressure relief valve shall be mounted inside the container or on the container, in the
area where the fuel is in gaseous state.
6.15.8.2. The pressure relief valve shall be so designed as to open at a pressure of 2,700 ± 100kPa.

6.15.10. Provisions Regarding the Filling Unit
6.15.10.1. The filling unit shall be equipped with at least one soft-seated non-return valve, and it shall
not be dismountable by design.
6.15.10.2. The filling unit shall be protected against contamination.
6.15.10.3. The design and dimensions of the connecting area of the filling unit shall comply with those
in the figures in Annex 9.
The filling unit shown in Figure 5 is only applicable for motor vehicles of Categories M , M ,
N , N and M having a maximum total mass >3,500kg.
6.15.10.4. The filling unit shown in Figure 4 may also apply for motor vehicles of Categories M , M ,
N , N and M having a maximum total mass >3,500kg.
6.15.10.5. The outside filling unit is connected to the container by a hose or pipe.
6.15.10.6. Specific provisions regarding the light vehicle Euro filling unit (Annex 9 - Figure 3):
6.15.10.6.1. The dead volume between the front sealing surface and the front of the non-return valve
shall not exceed 0.1cm ;
6.15.10.6.2. The flow through the connector at a pressure difference of 300kPa shall be at least 60l/min,
if tested with water.
6.15.10.7. Specific provisions regarding the heavy-duty vehicle Euro filling unit (Annex 9 - Figure 5):
6.15.10.7.1. The dead volume between the front sealing surface and the front of the non-return valve
shall not exceed 0.5cm ;
6.15.10.7.2. The flow through the filling unit, with the non-return valve mechanically opened, at a
pressure difference of 500kPa shall be at least 200l/min, when tested with water.
6.15.10.7.3. The Euro filling unit shall comply with the impact test as described in Annex 9,
Paragraph 7.4.
6.15.11. Provisions Regarding the Level Indicator
6.15.11.1. The device to verify the level of liquid in the container shall be of an indirect type (for
example magnetic) between the inside and outside of the container. If the device to verify
the level of liquid in the container is of a direct type, the electric power connections should
meet IP 54 specifications according to IEC EN 60529:1997-06.
6.15.11.2. If the level indicator of the container comprises a float, the latter shall withstand an outside
pressure of 3,000kPa.

8. (Not Allocated)
9. CONFORMITY OF PRODUCTION
The conformity of production procedures shall comply with those set out in the Agreement,
Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2), with the following requirements:
9.1. All equipment approved under this Regulation shall be so manufactured as to conform to the
type approved by meeting the requirements of Paragraph 6 above.
9.2. In order to verify that the requirements of Paragraph 9.1. are met, suitable controls of
production shall be carried out.
9.3. The minimum requirements for conformity of production control tests set forth in Annexes 8,
10 and 15 of this Regulation shall be complied with.
9.4. The Type Approval Authority which has granted type approval may at any time verify the
conformity control methods applied in each production facility. The normal frequency of
these verifications shall be once every year.
9.5. Moreover, each container shall be tested at a minimum pressure of 3,000kPa in conformity
with the prescriptions of Paragraph 2.3. of Annex 10 to this Regulation.
9.6. Every hose assembly which is applied in the high pressure class (Class 1) according to the
classification as prescribed in Paragraph 2 of this Regulation, shall, during half a minute, be
subjected to a test with gas under a pressure of 3,000kPa by the approval holder.
9.6.1. Every hose assembly which is applied in the high pressure class (Class 0) according to the
classification as prescribed in Paragraph 2. of this Regulation, shall, during half a minute, be
subjected to a test with gas under a pressure of the declared WP by the approval holder.
9.7. For welded containers at least 1 per 200 containers and one of the remaining number has to
be subjected to the radiographic examination according to Annex 10, Paragraph 2.4.1.
9.8. During production 1 of 200 containers and 1 of the remaining number has to be subjected to
the above-mentioned mechanical tests as described in Annex 10, Paragraph 2.1.2.
10. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
10.1. The approval granted in respect of a type of equipment pursuant to this Regulation may be
withdrawn if the requirements laid down in Paragraph 9 above are not complied with.
10.2. If a Party to the Agreement applying this Regulation withdraws an approval it has previously
granted, it shall forthwith so notify the other Contracting Parties applying this Regulation, by
means of a communication form conforming to the model in Annex 2B to this Regulation.

PART II
APPROVAL OF VEHICLES OF CATEGORIES M AND N FITTED WITH SPECIFIC EQUIPMENT
FOR THE USE OF LIQUEFIED PETROLEUM GASES IN THEIR PROPULSION SYSTEM
WITH REGARD TO THE INSTALLATION OF SUCH EQUIPMENT
14. DEFINITIONS
14.1. For the purposes of Part II of this Regulation:
14.1.1. "Approval of a vehicle" means the approval of a vehicle type with regard to the installation
of its specific equipment for the use of liquefied petroleum gases in its propulsion system;
14.1.2. "Vehicle type" means a vehicle or a family of vehicles fitted with specific equipment for the
use of LPG in its propulsion system, which do not differ with respect to the following
conditions:
14.1.2.1. the manufacturer;
14.1.2.2. the type designation established by the manufacturer;
14.1.2.3. the essential aspects of design and construction;
14.1.2.3.1. chassis/floor pan (obvious and fundamental differences);
14.1.2.3.2. installation of the LPG equipment (obvious and fundamental differences).
14.1.3. "Commanded stop phase" defines the period of time during which the combustion engine
is switched off automatically for fuel saving and is allowed to start again automatically.
15. APPLICATION FOR APPROVAL
15.1. The application for approval of a vehicle type with regard to the installation of specific
equipment for the use of liquefied petroleum gases in its propulsion system shall be
submitted by the vehicle manufacturer or by his duly accredited representative.
15.2. It shall be accompanied by the under-mentioned documents in triplicate: description of the
vehicle comprising all the relevant particulars referred to in Annex 1 to this Regulation.
15.3. A vehicle representative of the vehicle type to be approved, shall be submitted to the
Technical Service conducting the approval tests.

17. REQUIREMENTS FOR THE INSTALLATION OF SPECIFIC EQUIPMENT FOR THE USE
OF LIQUEFIED PETROLEUM GASES IN THE PROPULSION SYSTEM OF A VEHICLE
17.1. General
17.1.1. The LPG equipment as installed in the vehicle shall function in such a manner that the
maximum operating pressure for which it has been designed and approved cannot be
exceeded.
17.1.2. All parts of the system shall be type approved for individual parts pursuant to Part I of this
Regulation.
17.1.2.1. Notwithstanding the provisions of Paragraph 17.1.2. above, if the LPG electronic control unit
is integrated into the engine electronic control unit and is covered with a vehicle installation
type approval according to Part II of this Regulation and to Regulation No. 10, no separate
type approval of the LPG electronic control unit is necessary. The vehicle type approval
shall also be approved pursuant to the applicable provisions laid down in Annex 14 of this
Regulation.
17.1.3. The materials used in the system shall be suitable for use with LPG.
17.1.4. All parts of the system shall be fastened in a proper way.
17.1.5. The LPG-system shall show no leaks.
17.1.6. The LPG-system shall be installed such that is has the best possible protection against
damage, such as damage due to moving vehicle components, collision, grit or due to the
loading or unloading of the vehicle or the shifting of those loads.
17.1.7. No appliances shall be connected to the LPG-system other than those strictly required for
the proper operation of the engine of the motor vehicle.
17.1.7.1. Notwithstanding the provisions of Paragraph 17.1.7. above, motor vehicles of Categories
M , M , N , N and M having either a maximum total mass >3,500kg or a body type SA ,
may be fitted with a heating system to heat the passenger compartment which is connected
to the LPG-system.
17.1.7.2. The heating system referred to in Paragraph 17.1.7.1. above shall be permitted if, in the
view of the Technical Services responsible for conducting type approval, the heating system
is adequately protected and the required operation of the normal LPG-system is not
affected.
17.1.7.3. Notwithstanding the provisions of Paragraph 17.1.7. above, a mono-fuel vehicle without
limp-home system may be equipped with a service coupling in the LPG-system.
17.1.7.4. The service coupling referred to in Paragraph 17.1.7.3. above shall be permitted if, in the
view of the Technical Services responsible for conducting type approval, the service
coupling is adequately protected and the required operation of the normal LPG-system is
not affected. The service coupling shall be combined with a separate gas-tight non-return
valve whereby it is only possible to operate the engine.
17.1.7.5. Mono-fuel vehicles installed with a service coupling shall carry a sticker near the service
coupling as specified in Annex 17 to this Regulation.

17.3.1.13. pressure relief device (fuse).
17.3.2. The System may also Include the Following Components:
17.3.2.1. gas-tight housing, covering the accessories fitted to the fuel container;
17.3.2.2. non-return valve;
17.3.2.3. gas tube pressure relief valve;
17.3.2.4. gas dosage unit;
17.3.2.5. LPG filter unit;
17.3.2.6. pressure or temperature sensor;
17.3.2.7. LPG fuel pump;
17.3.2.8. power supply bushing for the container (actuators/fuel pump/fuel level sensor);
17.3.2.9. service coupling (mono-fuel vehicles only and no limp-home system);
17.3.2.10. fuel selection system and electrical system;
17.3.2.11. fuel rail.
17.3.3. The container fittings referred to in Paragraphs 17.3.1.2. to 17.3.1.5. above may be
combined.
17.3.4. The remotely controlled shut-off valve referred to in Paragraph 17.3.1.7. above may be
combined with the pressure regulator/vaporiser.
17.3.5. Additional components required for the effective operation of the engine may be installed in
that part of the LPG-system where the pressure is less than 20kPa.
17.4. Installation of the Fuel Container
17.4.1. The fuel container shall be permanently installed in the vehicle and shall not be installed in
the engine compartment.
17.4.2. The fuel container shall be installed in the correct position, according to the instructions from
the container manufacturer.
17.4.3. The fuel container shall be installed such that there is no metal to metal contact, other than
at the permanent fixing points of the container.
17.4.4. The fuel container shall have permanent fixing points to secure it to the motor vehicle or the
container shall be secured to the motor vehicle by a container frame and container straps.
17.4.5. When the vehicle is ready for use the fuel container shall not be less than 200mm above the
road surface.

17.6.1.3. Notwithstanding the provision of Paragraph 17.6.1.2. above, in case of liquid injection
systems, if a fuel recirculation is required to purge the system from gas bubbles (vapour
lock), it is allowed to keep the remotely controlled service valve with excess flow valve open
for a period not longer than 10s before starting the engine in LPG running mode.
17.6.1.4. Notwithstanding the provisions of Paragraph 17.6.1.2. above, the remotely controlled
service valve may stay in an open position during the commanded stop phases.
17.6.1.5. If the remotely controlled service valve is closed during commanded stop phases, the valve
shall comply with Paragraph 4.7. of Annex 3.
17.6.2. Spring-loaded Pressure Relief Valve in the Container
17.6.2.1. The spring-loaded pressure relief valve shall be installed in the fuel container in such a
manner that it is connected to the vapour space and can discharge to the surrounding
atmosphere. The spring-loaded pressure relief valve may discharge into the gas-tight
housing if that gas-tight housing fulfils the requirements of Paragraph 17.6.5. below
17.6.3. 80% Stop Valve
17.6.3.1. The automatic filling level limiter shall be suitable for the fuel container it is fitted to and shall
be installed in the appropriate position to ensure that the container cannot be filled to more
than 80%.
17.6.4. Level Indicator
17.6.4.1. The level indicator shall be suitable for the fuel container it is fitted to and shall be installed
in the appropriate position.
17.6.5. Gas-tight Housing on the Container
17.6.5.1. A gas-tight housing over the container fittings, which fulfils the requirements of
Paragraphs 17.6.5.2. to 17.6.5.5. below shall be fitted to the fuel container, unless the
container is installed outside the vehicle and the container fittings are protected against dirt
and water.
17.6.5.2. The gas-tight housing shall be in open connection with the atmosphere, where necessary
through a connecting hose and a lead-through.
17.6.5.3. The ventilation opening of the gas-tight housing shall point downwards at the point of exit
from the motor vehicle. However, it shall not discharge into a wheel arch, nor shall it be
aimed at a heat source such as the exhaust.
17.6.5.4. Any connecting hose and lead-through in the bottom of the bodywork of the motor vehicle
for ventilation of the gas-tight housing shall have a minimum clear opening of 450mm . If a
gas tube, other tube or any electrical wiring is installed in the connecting hose and
lead-through, the clear opening shall also be at least 450mm .
17.6.5.5. The gas-tight housing and connecting hoses shall be gas-tight at a pressure of 10kPa with
the apertures closed off, and show no permanent deformation, with a maximum allowed
leak rate of 100cm /h.
17.6.5.6. The connecting hose shall be secured in a proper way to the gas-tight housing and the
lead-through to ensure that a gas-tight joint is formed.

17.8.8. In a passenger compartment or enclosed luggage compartment the gas tube or hose shall
be no longer than reasonably required; this provision is fulfilled when the gas tube or hose
does not extend further than from the fuel container to the side of vehicle.
17.8.8.1. There shall be no gas-conveying connections in the passenger compartment or enclosed
luggage compartment with the exception of:
(a)
(b)
The connections on the gas-tight housing; and
The connection between the gas tube or hose and the filling unit if this connection is
fitted with a sleeve which is resistant against LPG and any leaking gas will be
discharged directly into the atmosphere.
17.8.8.2. The provisions of Paragraph 17.8.8. and Paragraph 17.8.8.1. above shall not apply for M or
M category vehicles if the gas tubes or hoses and connections are fitted with a sleeve
which is resistant against LPG and which has an open connection to the atmosphere. The
open end of the sleeve or ducting shall be situated at the lowest point.
17.9. Remotely Controlled Shut-off Valve
17.9.1. A remotely controlled shut-off valve shall be installed in the gas tube from the LPG container
to the pressure regulator/vaporiser, as close as possible to the pressure regulator/vaporiser.
17.9.2. The remotely controlled shut-off valve may be incorporated into the pressure
regulator/vaporiser.
17.9.3. Notwithstanding the provisions of Paragraph 17.9.1. above, the remotely controlled shut-off
valve may be installed at a location in the engine bay specified by the manufacturer of the
LPG-system if a fuel return system is provided between the pressure regulator and the
LPG container.
17.9.4. The remotely controlled shut-off valve shall be installed such that the fuel supply is cut off
when the engine is not running or, if the vehicle is also equipped with another fuel system,
when the other fuel is selected. A delay of 2s is permitted for diagnostic purposes.
17.9.5. Notwithstanding the provision of Paragraph 17.9.4. above, in case of liquid injection
systems, if a fuel recirculation is required to purge the system from gas bubbles (vapour
lock), it is allowed to keep the remotely controlled shut-off valve open for a period not longer
than 10s before starting the engine in LPG running mode and during the fuel
switching-over.
17.9.6. Notwithstanding the provisions of Paragraph 17.9.4. above, the remotely controlled shut-off
valve may stay in an open position during the commanded stop phases.
17.9.7. If the remotely controlled shut-off valve is closed during commanded stop phases, the valve
shall comply with Paragraph 1.7. of Annex 7.
17.10. Filling Unit
17.10.1. The filling unit shall be secured against rotation and shall be protected against dirt and
water.
17.10.2. When the LPG container is installed in the passenger compartment or an enclosed
(luggage) compartment, the filling unit shall be located at the outside of the vehicle.

19. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
19.1. The approval granted in respect of a type of vehicle pursuant to this Regulation may be
withdrawn if the requirements laid down in Paragraph 18. above are not complied with.
19.2. If a Contracting Party to the Agreement applying this Regulation withdraws an approval it
has previously granted, it shall forthwith so notify the other Contracting Parties applying this
Regulation, by means of a communication form conforming to the model in Annex 2D to this
Regulation.
20. MODIFICATION AND EXTENSION OF APPROVAL OF A VEHICLE TYPE
20.1. Every modification of the installation of the specific equipment for the use of liquefied
petroleum gases in the propulsion system of the vehicle shall be notified to the Type
Approval Authority which approved the vehicle type. The Type Approval Authority may then
either:
20.1.1. Consider that the modifications made are unlikely to have an appreciably adverse effect and
that in any case the vehicle still complies with the requirements; or
20.1.2. Require a further test report from the Technical Service responsible for conducting the tests.
20.2. Confirmation or refusal of approval, specifying the alteration, shall be communicated by the
procedure specified in Paragraph 16.3. above to the Parties to the Agreement applying this
Regulation.
20.3. The Type Approval Authority issuing the extension of approval shall assign a series number
for such an extension and inform thereof the other Contracting Parties to the 1958
Agreement applying this Regulation by means of a communication form conforming to the
model in Annex 2D to this Regulation.
21. PRODUCTION DEFINITIVELY DISCONTINUED
If the holder of the approval completely ceases to manufacture a type of vehicle approved in
accordance with this Regulation, he shall so inform the Type Approval Authority which
granted the approval. Upon receiving the relevant communication, that Authority shall inform
thereof the other Contracting Parties to the Agreement applying this Regulation by means of
a communication form conforming to the model in Annex 2D to this Regulation.
22. TRANSITIONAL PROVISIONS REGARDING THE INSTALLATION OF VARIOUS
COMPONENTS OF THE LPG EQUIPMENT AND THE TYPE APPROVAL OF A VEHICLE
FITTED WITH SPECIFIC EQUIPMENT FOR THE USE OF LIQUEFIED PETROLEUM GAS
IN ITS PROPULSION SYSTEM WITH REGARD TO THE INSTALLATION OF SUCH
EQUIPMENT
22.1. As from the official date of entry into force of the 01 series of amendments to this
Regulation, no Contracting Party applying this Regulation shall refuse to grant approval
under this Regulation as amended by the 01 series of amendments.
22.2. As from the official date of entry into force of the 01 series of amendments to this
Regulation, no Contracting Party applying this Regulation shall prohibit the fitting on a
vehicle and the use as first equipment of a component approved under this Regulation as
amended by the 01 series of amendments.

ANNEX 1
ESSENTIAL CHARACTERISTICS OF THE VEHICLE, ENGINE AND LPG RELATED EQUIPMENT
DESCRIPTION OF THE VEHICLE(S)
Make: .......................................................................................................................................
Type(s) ....................................................................................................................................
Name and address of the manufacturer ..................................................................................
1. DESCRIPTION OF THE ENGINE(S)
1.1. Manufacturer ...........................................................................................................................
1.1.1. Manufacturer's engine code(s) (as marked on the engine, or other means of identification) .
.................................................................................................................................................
1.2. Internal combustion engine
(1.2.1.-
1.2.4.4. not used)
1.2.4.5. Description of the LPG fuelling equipment:
1.2.4.5.1. System description:
1.2.4.5.1.1. Make(s): ...................................................................................................................................
1.2.4.5.1.2. Type(s): ...................................................................................................................................
1.2.4.5.1.3. Drawings/flow charts of the installation in the vehicle(s): ........................................................
1.2.4.5.2. Vaporiser/pressure regulator(s):
1.2.4.5.2.1. Make(s): ...................................................................................................................................
1.2.4.5.2.2. Type(s): ...................................................................................................................................
1.2.4.5.2.3. Certification number: ...............................................................................................................
1.2.4.5.2.4. (not used)
1.2.4.5.2.5. Drawings: .................................................................................................................................
1.2.4.5.2.6. Number of main adjustment points ..........................................................................................
1.2.4.5.2.7. Description of principle of adjustment through main adjustment points: .................................
1.2.4.5.2.8. Number of idle adjustment points: ...........................................................................................

1.2.4.5.6.
Electronic Control Unit LPG-fuelling:
1.2.4.5.6.1.
Make(s): ...................................................................................................................................
1.2.4.5.6.2.
Type(s): ...................................................................................................................................
1.2.4.5.6.3.
Place of installation ..................................................................................................................
1.2.4.5.6.4.
Adjustment possibilities: ..........................................................................................................
1.2.4.5.7.
LPG container:
1.2.4.5.7.1.
Make(s): ...................................................................................................................................
1.2.4.5.7.2.
Type(s) (include drawings): .....................................................................................................
1.2.4.5.7.3
Number of containers: .............................................................................................................
1.2.4.5.7.4.
Capacity: .......................................................................................................................... litres
1.2.4.5.7.5.
LPG fuel pump in container: yes/no
1.2.4.5.7.6.
(not used)
1.2.4.5.7.7.
Drawings of the installation of the container: ..........................................................................
1.2.4.5.8.
LPG container accessories
1.2.4.5.8.1.
80% stop valve:
1.2.4.5.8.1.1. Make(s): ...................................................................................................................................
1.2.4.5.8.1.2. Type(s): ...................................................................................................................................
1.2.4.5.8.1.3. Operating principle: float/other
(include description or drawings) .......................................
1.2.4.5.8.2.
Level indicator:
1.2.4.5.8.2.1. Make(s): ...................................................................................................................................
1.2.4.5.8.2.2. Type(s): ...................................................................................................................................
1.2.4.5.8.2.3. Operating principle: float/other
(include description or drawings) ........................................
1.2.4.5.8.3.
Pressure relief valve (discharge valve):
1.2.4.5.8.3.1. Make(s): ...................................................................................................................................
1.2.4.5.8.3.2. Type(s): ...................................................................................................................................
1.2.4.5.8.3.3. Flow rate in standard conditions .............................................................................................

1.2.4.5.10. Shut-off valve/Non-return valve/Gas tube pressure relief valve: yes/no
1.2.4.5.10.1. Make(s): ...................................................................................................................................
1.2.4.5.10.2. Type(s): ...................................................................................................................................
1.2.4.5.10.3. Description and drawings: .......................................................................................................
1.2.4.5.10.4. Operating pressure(s): .................................................................................................... kPa
1.2.4.5.11. Remote filling unit:
1.2.4.5.11.1. Make(s): ...................................................................................................................................
1.2.4.5.11.2. Type(s): ...................................................................................................................................
1.2.4.5.11.3. Description and drawings: .......................................................................................................
1.2.4.5.12. Flexible fuel hose(s)/pipes:
1.2.4.5.12.1. Make(s): ...................................................................................................................................
1.2.4.5.12.2. Type(s): ...................................................................................................................................
1.2.4.5.12.3. Description :.............................................................................................................................
1.2.4.5.12.4. Operating pressure(s): .................................................................................................... kPa
1.2.4.5.13. Pressure and Temperature sensor(s):
1.2.4.5.13.1. Make(s): ...................................................................................................................................
1.2.4.5.13.2. Type(s): ...................................................................................................................................
1.2.4.5.13.3. Description :.............................................................................................................................
1.2.4.5.13.4. Operating pressure(s): .................................................................................................... kPa
1.2.4.5.14. LPG filter unit(s):
1.2.4.5.14.1. Make(s): ...................................................................................................................................
1.2.4.5.14.2. Type(s): ...................................................................................................................................
1.2.4.5.14.3. Description :.............................................................................................................................
1.2.4.5.14.4. Operating pressure(s): .................................................................................................... kPa

ANNEX 2A
ARRANGEMENT OF THE LPG EQUIPMENT
TYPE-APPROVAL MARK
(See Paragraph 5.4. of this Regulation)
Class 0, 1, 2, 2A or 3
The above approval mark affixed to the LPG equipment shows that this equipment has been approved in
the Netherlands (E4), pursuant to Regulation No. 67 under approval number 012439. The first two digits
of the approval number indicate that the approval was granted in accordance with the requirements of
Regulation No. 67 as amended by the 01 series of amendments.

Shut-off valve
Non-return valve
Gas-tube pressure relief valve
Service coupling
Flexible hose
Remote filling unit
Gas injection device or injector
Fuel rail
Gas dosage unit
Gas mixing piece
Electronic control unit
Pressure/temperature sensor
LPG filter unit
Multi-component
2.
Trade name or mark .............................................................................................................................
3.
Manufacturer's name and address .......................................................................................................
4.
If applicable, name and address of manufacturer's representative .....................................................
5.
Submitted for approval on ....................................................................................................................
6.
Technical Service responsible for conducting approval tests ..............................................................
7.
Date of report issued by that Service ...................................................................................................
8.
No. of report issued by that Service .....................................................................................................
9.
Approval granted/refused/extended/withdrawn
.................................................................................
10.
Reason(s) of extension (if applicable) ..................................................................................................
11.
Place .....................................................................................................................................................
12.
Date ......................................................................................................................................................
13.
Signature ..............................................................................................................................................
14.
The documents filed with the application or extension of approval can be obtained upon request.

2. List of the Container Family:
The lists of the container family indicate the diameter, capacity, external surface and the possible
configuration(s) of the accessories fitted to the container.
Table 2
No.
Type
Diameter/height
[mm]
Capacity
[L]
External surface
[cm ]
Configuration of
accessories [codes]
01
02
3. Lists of the possible configurations of accessories fitted to the container:
Specify a list of the possible accessories, which differ from the tested configuration of accessories
(code 00) and which may be fitted to the type of container. Specify for all accessories, type,
approval number and extension number, indicating its own configuration code.
Table 3
No.
Accessories
Type
Approval No.
Extension No.
a
b
c
d
Configuration of
accessories [codes]

ANNEX 2D
COMMUNICATION
(maximum format: A4 (210 × 297mm))
issued by:
Name of administration:
.....................................
.....................................
.....................................
concerning:
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITIVELY DISCONTINUED
of a vehicle type with regard to the installation of LPG systems pursuant to Regulation No. 67
Approval No.: ....................................... Extension No.: ..........................................
1. Trade name or mark of vehicle ............................................................................................................
2. Vehicle type ..........................................................................................................................................
3. Vehicle category ...................................................................................................................................
4. Manufacturer's name and address .......................................................................................................
5. If applicable, name and address of manufacturer's representative .....................................................
..............................................................................................................................................................
6. Description of the vehicle (drawings, etc.)
7. Test results
8. Submitted for approval on ....................................................................................................................
9. Technical Service responsible for conducting approval tests ..............................................................
10. Date of report issued by that Service ...................................................................................................
11. No. of report issued by that Service .....................................................................................................
12. Approval granted/refused/extended/withdrawn .................................................................................

ANNEX 3
PROVISIONS REGARDING THE APPROVAL OF LPG CONTAINER ACCESSORIES
1. 80% STOP VALVE
1.1. Definition: see Paragraph 2.5.1. of this Regulation.
1.2. Component classification (according to Figure 1, Paragraph 2): Class 3.
1.3. Classification pressure: 3,000kPa.
1.4. Design temperatures:
-20°C to 65°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
1.5. General design rules:
Paragraph 6.15.1., Provisions regarding 80% stop valve.
Paragraph 6.15.2., Provisions regarding the electrical insulation.
Paragraph 6.15.3.1., Provisions on valves activated by electrical power.
1.6. Applicable test procedures:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
Seat leakage
Annex 15, Paragraph 8
Endurance
Annex 15, Paragraph 9
Operational test
Annex 15, Paragraph 10
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16
2. LEVEL INDICATOR
2.1. Definition: see Paragraph 2.5.2. of this Regulation.
2.2. Component classification (according to Figure 1, Paragraph 2): Class 1.
2.3. Classification pressure: 3,000kPa.

3.6. Applicable test procedures:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
Seat leakage
Annex 15, Paragraph 8
Endurance
Annex 15, Paragraph 9
(with 200 operation cycles)
Operational test
Annex 15, Paragraph 10
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16
4. REMOTELY CONTROLLED SERVICE VALVE WITH EXCESS FLOW VALVE
4.1. Definition: see Paragraph 2.5.4. of this Regulation.
4.2. Component classification (according to Figure 1, Paragraph 2): Class 3 or Class 0 if WP
declared.
4.3. Classification pressure: 3,000kPa or WP declared if ≥3,000kPa.
4.4. Design temperatures:
-20°C to 65°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
4.5. General design rules:
Paragraph 6.15.2., Provisions regarding the electrical insulation.
Paragraph 6.15.3.1., Provisions on valves activated by an electrical/external power.
Paragraph 6.15.13., Provisions regarding the remotely controlled service valve with excess flow
valve.

5.4. Design temperatures:
-20°C to 65°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
5.5. General design rules:
Paragraph 6.15.2., Provisions regarding the electrical insulation.
Paragraph 6.15.2.3., Provisions regarding the power supply bushing.
5.6. Applicable test procedures:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16
6. GAS-TIGHT HOUSING
6.1. Definition: See Paragraph 2.5.7. of this Regulation.
6.2. Component classification (according to Figure 1, Paragraph 2):
Not applicable.
6.3. Classification pressure: Not applicable.
6.4. Design temperatures:
-20°C to 65°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
6.5. General design rules:
Paragraph 6.15.12., Provisions regarding the gas-tight housing.

7.7. Pressure relief device (fuse) requirements
Pressure relief device (fuse) specified by the manufacturer shall be shown to be compatible
with the service conditions by means of the following tests:
a) One specimen shall be held at a controlled temperature of not less than 90°C and a
pressure not less than test pressure (3,000kPa) for 24h. At the end of this test there shall
be no leakage or visible sign of extrusion of any fusible metal used in the design.
b) One specimen shall be fatigue tested at a pressure cycling rate not to exceed 4 cycles
per minute as follows:
i) held at 82°C while pressured for 10 000 cycles between 300 and 3,000kPa;
ii)
held at -20°C while pressured for 10 000 cycles between 300 and 3,000kPa.
At the end of this test there shall be no leakage, or any visible sign of extrusion of any
fusible metal used in the design.
c) Exposed brass pressure retaining components of pressure relief device shall withstand,
without stress corrosion cracking, a mercurous nitrate test as described in ASTM B154 .
The pressure relief device shall be immersed for 30min in an aqueous mercurous nitrate
solution containing 10g of mercurous nitrate and 10ml of nitric acid per litre of solution.
Following the immersion, the pressure relief device shall be leak tested by applying an
aerostatic pressure of 3,000kPa for 1min during which time the component shall be
checked for external leakage. Any leakage shall not exceed 200cm /h.
d) Exposed stainless steel pressure retaining components of pressure relief device shall be
made of an alloy type resistant to chloride induced stress corrosion cracking.

ANNEX 5
PROVISIONS REGARDING THE APPROVAL OF THE LPG FILTER UNIT
1. Definition: see Paragraph 2.14. of this Regulation.
2. Component Classification (according to Figure 1, Paragraph 2):
Filter units can be Class 0, 1, 2 or 2A.
3. Classification Pressure:
Components of Class 0:
Components of Class 1:
Components of Class 2:
Components of Class 2A:
WP declared
3,000kPa.
450kPa.
120kPa.
4. Design Temperatures:
-20°C to 120°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
5. General Design Rules: (not used)
6. Applicable Test Procedures:
6.1. For parts of Class 1:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16
6.2. For parts of Class 2 and/or 2A:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12

6. Applicable Test Procedures:
6.1. For parts of Class 1:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
Seat leakage
Annex 15, Paragraph 8
Endurance (Number of cycles shall be 50 000 cycles)
Annex 15, Paragraph 9
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16
6.2. For parts of Class 2 and/or 2A:
Remarks:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
The shut-off valve can be integrated in the vaporiser, regulator, in this case Annex 7 is also applicable.
The parts of the pressure regulator/vaporiser (Class 1, 2 or 2A) shall be leak proof with the outlet(s) of
that part closed off.
For the overpressure test all the outlets including those of the coolant compartment shall be closed off.

2. PROVISIONS REGARDING THE APPROVAL OF THE NON-RETURN VALVE
2.1. Definition: see Paragraph 2.5.9. of this Regulation.
2.2. Component Classification (according to Figure 1, Paragraph 2): Class 1.
2.3. Classification Pressure: 3,000kPa.
2.4. Design Temperatures:
-20°C to 120°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
2.5. General Design Rules:
Paragraph 6.15.2., Provisions regarding the electrical insulation.
Paragraph 6.15.3.1., Provisions on valves activated by electrical power.
2.6. Applicable Test Procedures:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
Seat leakage
Annex 15, Paragraph 8
Endurance
Annex 15, Paragraph 9
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16
3. PROVISIONS REGARDING THE APPROVAL OF THE GAS-TUBE RELIEF VALVE
3.1. Definition: see Paragraph 2.9. of this Regulation.
3.2. Component Classification (according to Figure 1, Paragraph 2): Class 3.
3.3. Classification Pressure: 3,000kPa or WP declared if >3,000kPa.
3.4. Design Temperatures:
-20°C to 120°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.

4.6. Applicable test procedures:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
Seat leakage
Annex 15, Paragraph 8
Endurance
Annex 15, Paragraph 9
(with 6 000 operation cycles)
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16

1.3. Specifications and Tests for the Lining
1.3.1. Tensile Strength and Elongation
1.3.1.1. Tensile Strength and Elongation at Break according to ISO 37. Tensile strength not less
than 10MPa and elongation at break not less than 250%.
1.3.1.2. Resistance to n-pentane according to ISO 1817 with the following conditions:
(a)
medium: n-pentane
(b) temperature: 23°C (tolerance according to ISO 1817)
(c)
immersion period: 72h
Requirements:
(a) maximum change in volume 20%
(b) maximum change in tensile strength 25%
(c) maximum change in elongation at break 30%
After storage in air with a temperature of 40°C for a period of 48h the mass compared to the
original value may not decrease more than 5%.
1.3.1.3. Resistance to ageing according to ISO 188 with the following conditions:
(a)
(b)
temperature: 70°C (test temperature = maximum operating temperature -10°C)
exposure period: 168h
Requirements:
(a) maximum change in tensile strength 25%
(b) maximum change in elongation at break -30% and +10%
1.4. Specifications and Test-Method for the Cover
1.4.1. Tensile strength and elongation at break according to ISO 37. Tensile strength not less
than 10MPa and elongation at break not less than 250%.
1.4.1.1. Resistance to n-hexane according to ISO 1817 with the following conditions:
(a)
medium: n-hexane
(b) temperature: 23°C (tolerance according to ISO 1817)
(c)
immersion period: 72h

1.5.4. Bending Test
1.5.4.1. An empty hose, at a length of approximately 3.5m shall be able to withstand 3 000 times the
hereafter prescribed alternating-bending-test without breaking. After the test the hose shall
be capable of withstanding the test-pressure as mentioned in Paragraph 1.5.5.2. below.
1.5.4.2.
Hose Inside diameter
(mm)
Figure 1
(example only)
Bending radius
(mm)
(Figure 1)
Distance between centres (mm)
(Figure 1)
Vertical
b
Horizontal
a
Up to 13 102 241 102
13 to 16 153 356 153
from 16 to 20 178 419 178
1.5.4.3. The testing machine (see Figure 1) shall consist of a steel frame, provided with two wooden
wheels, with a rim-width of c.a. 130mm.
The circumference of the wheels shall be grooved for the guidance of the hose. The radius
of the wheels, measured to the bottom of the groove, shall be as indicated in
Paragraph 1.5.4.2. above.
The longitudinal median planes of both wheels shall be in the same vertical plane and the
distance between the wheel-centres shall be in accordance with Paragraph 1.5.4.2.
Each wheel shall be able to rotate freely round its pivot-centre.
A propulsion mechanism pulls the hose over the wheels at a speed of four complete
motions per minute.

1.8. Markings
1.8.1. Every hose shall bear, at intervals of not greater than 0.5m, the following clearly legible and
indelible identification markings consisting of characters, figures or symbols.
1.8.1.1. The trade name or mark of the manufacturer.
1.8.1.2. The year and month of fabrication.
1.8.1.3. The size and type-marking.
1.8.1.4. The identification-marking "L.P.G. Class 1".
1.8.2. Every coupling shall bear the trade name or mark of the assembling manufacturer.
2. LOW PRESSURE RUBBER HOSES, CLASS 2 CLASSIFICATION
2.1. General Specifications
2.1.1. The hose shall be so designed as to withstand a maximum operating pressure of 450kPa.
2.1.2. The hose shall be so designed as to withstand temperatures between -25°C and +125°C.
For operating temperatures exceeding the above-mentioned values, the test temperatures
shall be adapted.
2.2. Hose Construction
2.2.1. The hose shall embody a smooth-bore tube and a cover of suitable synthetic material,
reinforced with one or more interlayer(s).
2.2.2. The reinforcing interlayer(s) has (have) to be protected by a cover against corrosion.
If for the reinforcing interlayer(s) corrosion-resistant material is used (i.e. stainless steel) a
cover is not required.
2.2.3. The lining and the cover shall be smooth and free from pores, holes and strange elements.
An intentionally provided puncture in the cover shall not be considered as an imperfection.
2.3. Specifications and Tests for the Lining
2.3.1. Tensile Strength and Elongation
2.3.1.1. Tensile strength and elongation at break according to ISO 37. Tensile strength not less than
10MPa and elongation at break not less than 250%.
2.3.1.2. Resistance to n-pentane according to ISO 1817 with the following conditions:
(a)
medium: n-pentane
(b) temperature: 23°C (tolerance according to ISO 1817)
(c)
immersion period: 72h

Requirements:
(a) maximum change in tensile strength 25%
(b) maximum change in elongation at break -30% and +10%
2.4.2. Resistance to Ozone
2.4.2.1. The test has to be performed in compliance with Standard ISO 1431/1.
2.4.2.2. The test-pieces, which have to be stretched to an elongation of 20% shall have to be
exposed to air of 40°C with an ozone concentration of 50 parts per hundred million during
120h.
2.4.2.3. No cracking of the test pieces is allowed.
2.5. Specifications for Uncoupled Hose
2.5.1. Gas-tightness (permeability)
2.5.1.1. A hose at a free length of 1m has to be connected to a container filled with liquid propane,
having a temperature of 23 ± 2°C.
2.5.1.2. The test has to be carried out in compliance with the method described in Standard
ISO 4080.
2.5.1.3. The leakage through the wall of the hose shall not exceed 95cm of vapour per metre of
hose per 24h.
2.5.2. Resistance at Low Temperature
2.5.2.1. The test has to be carried out in compliance with the method described in Standard
ISO 4672-1978 Method B.
2.5.2.2. Test-temperature: -25 ± 3°C.
2.5.2.3. No cracking or rupture is allowed.
2.5.3. Bending Test
2.5.3.1. An empty hose, at a length of approximately 3.5m shall be able to withstand 3,000 times the
hereafter prescribed alternating-bending-test without breaking. After the test the hose shall
be capable of withstanding the test pressure as mentioned in Paragraph 2.5.4.2.

2.5.4. Hydraulic Test Pressure and Determination of the Minimum Burst-pressure
2.5.4.1. The test has to be carried out in compliance with the method described in Standard
ISO 1402.
2.5.4.2. The test pressure of 1,015kPa shall be applied during 10min, without any leakage.
2.5.4.3. The burst pressure shall not be less than 1,800kPa.
2.6. Couplings
2.6.1. The couplings shall be made from a non-corrosive material.
2.6.2. The coupling burst pressure in mounted position shall never be less than the tube or hose
burst pressure.
The coupling leakage pressure in mounted position shall never be less than the tube or
hose leakage pressure.
2.6.3. The couplings shall be of the crimp-fitting type.
2.6.4. The couplings can be made as swivel-nut type or as quick-connector type.
2.6.5. It shall be impossible to disconnect the quick-connector type without specific measures or
the use of dedicated tools.
2.7. Assembly of Hose and Couplings
2.7.1. If hose and couplings are not assembled by the approval holder, the approval shall consist
of:
(a)
(b)
(c)
Hose;
Couplings; and
Assembly instruction.
The assembly instruction shall be written in the language of the country to which the type of
hose or couplings will be delivered, or at least in English. It shall include detailed
characteristics of equipment used for the assembly operation.
2.7.2. The construction of the couplings shall be such, that it is not necessary to peel the cover
unless the reinforcement of the hose consists of corrosion-resistant material.

3.2. Hose Construction
3.2.1. The synthetic hose shall embody a thermoplastic tube and a cover of suitable thermoplastic
material, oil and weatherproof, reinforced with one or more synthetic interlayer(s). If for the
reinforcing interlayer(s) a corrosion-resistant material is used (i.e. stainless-steel) a cover is
not required.
3.2.2. The lining and the cover shall be free from pores, holes and strange elements.
An intentionally provided puncture in the cover shall not be considered as an imperfection.
3.3. Specifications and Tests for the Lining
3.3.1. Tensile Strength and Elongation
3.3.1.1. Tensile strength and elongation at break according to ISO 37. Tensile strength not less
than 20MPa and elongation at break not less than 200%.
3.3.1.2. Resistance to n-pentane according to ISO 1817 with the following conditions:
(a)
medium: n-pentane
(b) temperature: 23°C (tolerance according to ISO 1817)
(c)
immersion period: 72h
Requirements:
(a) maximum change in volume 20%
(b) maximum change in tensile strength 25%
(c) maximum change in elongation at break 30%
After storage in air with a temperature of 40°C for a period of 48h the mass compared to the
original value may not decrease more than 5%.
3.3.1.3. Resistance to ageing according to ISO 188 with the following conditions:
(a)
(b)
temperature: 115°C (test temperature = maximum operating temperature minus
10°C)
exposure period: 336h
Requirements:
(a) maximum change in tensile strength 35%
(b) maximum change in elongation at break -30% and +10%

3.4. Specifications and Test Method for the Cover
3.4.1.1. Tensile strength and elongation at break according to ISO 37. Tensile strength not less
than 20MPa and elongation at break not less than 250%.
3.4.1.2. Resistance to n-hexane according to ISO 1817 with the following conditions:
(a)
medium: n-hexane
(b) temperature: 23°C (tolerance according to ISO 1817)
(c)
immersion period: 72h
Requirements:
(a)
maximum change in volume 30%
(b)
maximum change in tensile strength 35%
(c)
maximum change in elongation at break 35%
3.4.1.3.
Resistance to ageing according to ISO 188 with the following conditions:
(a)
(b)
temperature: 115°C (test temperature = maximum operating temperature -10°C)
exposure period: 336h
Requirements:
(a) maximum change in tensile strength 25%
(b) maximum change in elongation at break -30% and +10%
3.4.2. Resistance to Ozone
3.4.2.1. The test has to be performed in compliance with ISO Standard 1431/1.
3.4.2.2. The test-pieces, which have to be stretched to an elongation of 20% shall have to be
exposed to air of 40°C and a relative humidity of 50% ± 10% with an ozone-concentration of
50 parts per hundred million during 120h.
3.4.2.3. No cracking of the test pieces is allowed.

3.5. Specifications for Uncoupled Hose
3.5.1. Gas-tightness (permeability)
3.5.1.1. A hose at a free length of 1m has to be connected to a container filled with liquid propane,
having a temperature of 23 ± 2°C.
3.5.1.2. The test has to be carried out in compliance with the method described in Standard
ISO 4080.
3.5.1.3. The leakage through the wall of the hose shall not exceed 95cm of vapour per metre of
hose per 24h.
3.5.2. Resistance at Low Temperature
3.5.2.1. The test has to be carried out in compliance with the method described in Standard
ISO 4672 Method B.
3.5.2.2. Test temperature: -25 ± 3°C.
3.5.2.3. No cracking or rupture is allowed.
3.5.3. Resistance at High Temperature
3.5.3.1. A piece of hose, pressurised at 3,000kPa, with a minimal length of 0.5m shall be put in an
oven at a temperature of 125°C ± 2°C during 24h.
3.5.3.2. No leakage is allowed.
3.5.3.3. After the test the hose shall withstand the test pressure of 6,750kPa during 10min. No
leakage is allowed.

3.5.5.2. The test pressure of 6,750kPa shall be applied during 10min, without any leakage.
3.5.5.3. The burst pressure shall not be less than 10,000kPa.
3.6. Couplings
3.6.1. The couplings shall be made from steel or brass and the surface shall be
corrosion-resistant.
3.6.2. The couplings shall be of the crimp-fitting type and made up of a hose-coupling or banjo
bolt. The sealing shall be resistant to LPG and comply with Paragraph 3.3.1.2. above.
3.6.3. The banjo bolt shall comply with DIN 7643.
3.7. Assembly of Hose and Couplings
3.7.1. The hose assembly has to be subjected to an impulse test in compliance with Standard
ISO 1436.
3.7.1.1. The test has to be completed with circulating oil having a temperature of 93°C, and a
minimum pressure of 3,000kPa.
3.7.1.2. The hose has to be subjected to 150,000 impulses.
3.7.1.3. After the impulse-test the hose has to withstand the test pressure as mentioned in
Paragraph 3.5.5.2. above.
3.7.2. Gas-tightness
3.7.2.1. The hose assembly (hose with couplings) has to withstand during 5min a gas pressure of
3,000kPa without any leakage.
3.8. Markings
3.8.1. Every hose shall bear, at intervals of not greater than 0.5m, the following clearly legible and
indelible identification markings consisting of characters, figures or symbols.
3.8.1.1. The trade name or mark of the manufacturer.
3.8.1.2. The year and month of fabrication.
3.8.1.3. The size and type-marking.
3.8.1.4. The identification marking "L.P.G. Class 1".
3.8.2. Every coupling shall bear the trade name or mark of the assembling manufacturer.

4.3.1.3. Resistance to ageing according to ISO 188 with the following conditions:
(a)
Temperature: 115°C (test temperature = maximum operating temperature minus
10°C);
(b) Exposure period: 336h.
Requirements:
(a) Maximum change in tensile strength 35%;
(b) Maximum change in elongation at break -30% and +10%.
4.3.2. Tensile Strength and Elongation Specific for Polyamide 6 Material
4.3.2.1. Tensile strength and elongation at break according to ISO 527-2 with the following
conditions:
(a)
(b)
Specimen type: Type 1 BA;
Tensile speed: 20mm/min.
The material has to be conditioned for at least 21 days at 23°C and 50% relative humidity
prior to testing.
Requirements:
(a)
Tensile strength not less than 20MPa;
(b) Elongation at break not less than 50%.
4.3.2.2. Resistance to n-pentane according to ISO 1817 with the following conditions:
(a)
Medium: n-pentane;
(b) Temperature: 23°C (tolerance according to ISO 1817);
(c) Immersion period: 72h.
Requirements:
(a) Maximum change in volume 2%;
(b) Maximum change in tensile strength 10%;
(c) Maximum change in elongation at break 10%.
After storage in air with a temperature of 40°C for a period of 48h the mass compared to the
original value may not decrease more than 5%.

4.4.2. Resistance to Ozone
4.4.2.1. The test shall be performed in compliance with Standard ISO 1431/1 – 1:2004/Amd 1:2009.
4.4.2.2. The test-pieces, which have to be stretched to an elongation of 20% shall be exposed to air
of 40°C and a relative humidity of 50% ± 10% with an ozone concentration of 50 parts per
hundred million during 120h.
4.4.2.3. Cracking of the test pieces is not allowed.
4.4.3. Specifications and Test Method for the Cover made of Polyamide 6 Material
4.4.3.1. Tensile strength and elongation at break according to ISO 527-2 with the following
conditions:
(a)
(b)
Specimen type: Type 1 BA;
Tensile speed: 20mm/min.
The material has to be conditioned for at least 21 days at 23°C and 50% relative humidity
prior to testing.
Requirements:
(a)
Tensile strength not less than 20MPa;
(b) Elongation at break not less than 100%.
4.4.3.2. Resistance to n-hexane according to ISO 1817 with the following conditions:
(a)
Medium: n-hexane;
(b)
Temperature: 23°C (tolerance according to ISO 1817);
(c)
Immersion period: 72h.
Requirements:
(a)
Maximum change in volume 2%;
(b)
Maximum change in tensile strength 10%;
(c)
Maximum change in elongation at break 10%.

4.5.4. Bending Test
4.5.4.1. An empty hose, at a length of approximately 3.5m shall be able to withstand 3,000 times the
hereafter prescribed alternating-bending-test without breaking.
After the test the hose shall be capable of withstanding the test pressure as mentioned in
Paragraph 4.5.5.2. below.
Figure 4
(Example only) (a = 102mm; b = 241mm)
4.5.4.2. The testing machine (see Figure 4) shall consist of a steel frame, provided with two wooden
wheels, with a rim-width of approximately 130mm.
The circumference of the wheels shall be grooved for the guidance of the hose. The radius
of the wheels, measured to the bottom of the groove, shall be 102mm.
The longitudinal median planes of both wheels shall be in the same vertical plane. The
distance between the wheel-centres shall be vertical 241mm and horizontal 102mm.
Each wheel shall be able to rotate freely round its pivot-centre.
A propulsion mechanism pulls the hose over the wheels at a speed of four complete
motions per minute.
4.5.4.3. The hose shall be S-shape-like installed over the wheels (see Figure 4).
The end, which runs over the upper wheel, shall be furnished with a sufficient mass as to
achieve a complete snuggling of the hose against the wheels. The part that runs over the
lower wheel is attached to the propulsion mechanism.
The mechanism shall be so adjusted, that the hose travels a total distance of 1.2m in both
directions.
4.5.5. Hydraulic Test Pressure and Determination of the Minimum Burst-pressure
4.5.5.1. The test has to be carried out in compliance with the method described in Standard
ISO 1402.
4.5.5.2. The test pressure of 2.25WP shall be applied during 10min, without any leakage.
4.5.5.3. The burst pressure shall not be less than 10,000kPa and at least 2.25WP.

ANNEX 9
PROVISIONS REGARDING THE APPROVAL OF THE FILLING UNIT
1. Definition: see Paragraph 2.16. of this Regulation.
2. Component Classification (according to Figure 1, Paragraph 2 of this Regulation):
Filling Unit: Class 3
Non-return Valve: Class 3
3. Classification Pressure: 3,000kPa.
4. Design Temperatures:
-20°C to 65°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
5. General design rules:
Paragraph 6.15.2., Provisions regarding the electrical insulation.
Paragraph 6.15.10., Provisions regarding the filling unit.
6. Applicable test procedures:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
Seat leakage test
Annex 15, Paragraph 8
Endurance
Annex 15, Paragraph 9
(with 6 000 operation cycles)
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
Resistance to dry heat
Annex 15, Paragraph 13
Ozone ageing
Annex 15, Paragraph 14
Creep
Annex 15, Paragraph 15
Temperature cycle
Annex 15, Paragraph 16
Impact test
Paragraph 7 of this Annex

Figure 2
Connecting Area of the Dish Filling Unit
Figure 3
Connecting Area of the Light Vehicle Euro Filling Unit

Dimensions in mm
Keys:
1 Nozzle sealing surface
2 Minimum valve travel
3 General tolerance
Figure 5
Connecting Area of the Heavy-duty Vehicle Euro Filling Unit

1.2. Dimensions
1.3. Materials
For all dimensions without indication of tolerances, general tolerances of EN 22768-1 shall
apply.
1.3.1. The material used for the manufacture of the stress-resistant container shells shall be
steel as specified in Euronorm EN 10120 (however, other materials may be used provided
that the container has the same safety characteristics, to be certified by the Type Approval
Authorities granting type approval).
1.3.2. The parent material refers to the material in the state before any specific transformation
with regards to the manufacturing process has been carried out.
1.3.3. All components of the container body and all the parts welded thereto shall be made of
mutually compatible materials.
1.3.4. The filler materials shall be compatible with the parent material so as to form welds with
properties equivalent to those specified for the parent material (EN 288-39).
1.3.5. The container manufacturer shall obtain and provide:
(a)
(b)
(c)
for metal containers: chemical cast analysis certificates;
for all-composite containers: chemical resistance analysis certificates related to
tests performed according to the requirements of Appendix 6;
mechanical properties of the material in respect of the steels or other materials
applied for the construction of the parts subject to pressure.
1.3.6. The inspection authority shall have the opportunity to make independent analyses. These
analyses shall be carried out either on specimens taken from the materials as supplied to
the container manufacturer or on the finished containers.
1.3.7. The manufacturer shall make available to the inspection authority the results of
metallurgical and mechanical tests and analyses of parent and filler materials carried out
on welds and shall also provide it with a description of the welding methods and processes
which can be regarded as representative of the welds made during production.
1.4. Design Temperatures and Pressures
1.4.1. Design Temperature
The design operating temperature of the container shall be from -20° to 65°C. For extreme
operating temperatures exceeding the above-mentioned temperatures special test
conditions are applicable which shall be agreed upon with the competent authority.
1.4.2. Design Pressure
The design operating pressure of the container shall be: 3,000kPa.

1.6.1.2. Dimensions and Calculations of Ends (see figures in Appendix 4 to this Annex)
1.6.1.2.1. The container ends shall be in one piece, shall encave to the pressure and shall have
either a torispherical or an elliptical form (examples are given in Appendix 5 of this Annex).
1.6.1.2.2. The container ends shall fulfil the following conditions:
Torispherical ends
simultaneous limits:
r ≥0.1 D
R ≤D
H ≥0.18 D
r ≥2 b
h ≥4 b
h ≤0.15 D
0.003 D ≤b ≤0.08 D
(not applicable for containers as shown in Appendix 2 to this
Annex, Figure 2a)
Elliptical ends
simultaneous limits:
H ≥0.18 D
h ≥4 b
h ≤0.15 D
0.003 D ≤b ≤0.08 D
(not applicable for containers as shown in Appendix 2 to this
Annex, Figure 2a)
1.6.1.2.3. The thickness of these barrelled ends shall not in toto be less than the figure calculated by
means of the following formula:
P × D
b =
1,500 R
C
The shape factor C to be used for full ends is given in the table and in the graphs
contained in Appendix 4 to this Annex.
The wall thickness of the cylindrical edge of the ends may not be less or differ more than
15% from the smallest wall thickness of the shell.
1.6.1.3. The nominal wall thickness of the cylindrical part and of the barrelled end may not, under
any circumstances; be less than:
with a minimum of 1.5mm.
D +
250
1 mm
1.6.1.4. The shell of the container may be made up of one, two or three parts. When the shell is
made up from two or three parts, the longitudinal welds shall be shifted/rotated with a
minimum of 10 times the thickness of the container wall (10 × a). The ends shall be in one
piece and convex.

1.7.2.3. Inspection of welds
The manufacturer shall ensure that the welds show continuous penetration without any
deviation of the weld seam, and that they are free of defects likely to jeopardise the safe
use of the container.
For containers in two pieces, a radiographical test has to be performed on the
circumferential butt welds over 100mm, with the exception of the welds in conformity with
joggle weld on Page 1 of Appendix 1 to this Annex. On one container selected at the
beginning and end of each shift period from continuous production and, in the event of
production being interrupted for a period of more than 12h, the first container welded
should also be radiographed.
1.7.2.4. Out-of-roundness
1.7.3. Fittings
The out-of-roundness of the cylindrical shell of the container shall be limited so that the
difference between the maximum and minimum outside diameter of the same
cross-section is not more than 1% of the average of those diameters.
1.7.3.1. The supports shall be manufactured and attached to the container body in such a way as
not to cause dangerous concentrations of stresses or be conducive to the collection of
water.
1.7.3.2. The base of the container shall be sufficiently strong and made of metal compatible with
the type of steel used for the container. The form of the base shall give the container
sufficient stability.
The top edge of the base shall be welded to the container in such a way as not to be
conducive to the collection of water nor to allow water to penetrate between the base and
the container.
1.7.3.3. A reference mark shall be affixed on the containers to ensure their correct installation.
1.7.3.4. Where fitted, identification plates shall be fixed on to the stress resistant shell and shall not
be removable. All the necessary corrosion prevention measures shall be taken.
1.7.3.5. The container shall have provisions to mount a gas-tight housing or kind of protection
device over the container accessories.
1.7.3.6. Any other material, however, may be used for the manufacture of the supports, provided
that its strength is assured and that all risk of the container end corroding is eliminated.

Table 2
Overview of Tests to be Performed on All-composite Containers
Test to be performed
Production
Batch Tests
Number of containers
to be tested for type
approval
Test description
Burst test
1 per batch
3
See Paragraph 2.2.
Hydraulic test
Each container
All containers
See Paragraph 2.3.
Ambient temperature pressure cycling
1 per 5 batches
3
See Paragraph 2.3.6.1.
test
High temperature pressure cycling test
1
See Paragraph 2.3.6.2.
External leak test
1
See Paragraph 2.3.6.3.
Permeation test
1
See Paragraph 2.3.6.4.
LPG cycling test
1
See Paragraph 2.3.6.5.
High temperature creep test
1
See Paragraph 2.3.6.6.
Bonfire test
1
See Paragraph 2.6.
Impact test
1
See Paragraph 2.7.
Drop test
1
See Paragraph 2.8.
Boss torque test
1
See Paragraph 2.9.
Acid environment test
1
See Paragraph 2.10.
Ultra-violet radiation test
1
See Paragraph 2.11.
2.1. Mechanical Tests
2.1.1. General Requirements
2.1.1.1. Frequency of the mechanical tests
2.1.1.1.1. The frequency of the tests for metal containers shall be: 1 container from each batch
during production and for type testing, see Table 1.
Test pieces which are not flat shall be flattened by a cold process.
In test pieces containing a weld, the weld shall be machined to trim the surplus.
Metal containers shall be subjected to the tests as described in Table 1.
Test pieces from containers with one circumferential weld only (two sections) shall be
taken from the places shown in Appendix 2, Figure 1.
Test pieces from containers with longitudinal and circumferential welds (three or more
sections) shall be taken from the places shown in Appendix 2, Figure 2.
2.1.1.1.2. The frequency of the tests for all-composite containers shall be:
(a)
During production: 1 container from each batch
(b) For type testing, see Table 2.

2.1.2.2.2. Tensile test on welds
2.1.2.2.2.1. This tensile test perpendicular to the weld shall be carried out on a test-piece having a
reduced cross-section 25mm in width for a length extending up to 15mm beyond the
edges of the weld, as shown in Figure 2 of Appendix 3 to this Annex.
Beyond this central part the width of the test-piece shall increase progressively.
2.1.2.2.2.2. The tensile strength value obtained shall meet the minimum levels required by EN 10120.
2.1.2.3. Bend test
2.1.2.3.1. The bend test shall be carried out in accordance with Standards ISO 7438:2005 and
ISO 7799:1985 and ISO 5173:2009 + Amd 1:2011 for welded parts. The bend tests shall
be carried out on the inner surface in tension and the outer surface in tension.
2.1.2.3.2. Cracks shall not appear in the test-piece when it is bent round a mandrel as long as the
inside edges are separated by a distance not greater than the diameter of the mandrel
+ 3a (see Figure 1 in Appendix 3 to this Annex).
2.1.2.3.3. The ratio (n) between the diameter of the mandrel and the thickness of the test piece shall
not exceed the values given in the following table:
Actual tensile strength
R in (N/mm )
up to 440 inclusive
above 440 to 520 inclusive
above 520
Value (n)
2
3
4
2.1.2.4. Re-testing for the tensile and bend tests.
2.1.2.4.1. Re-testing is permitted for the tensile and bend test. A second test shall consist of two test
pieces taken from the same container.
If the results of these tests are satisfactory, the first test shall be ignored.
In the event where one or both of the re-tests fail to meet the requirements, the batch shall
be rejected.
2.2. Burst Test Under Hydraulic Pressure
2.2.1. Test Conditions
Containers subjected to this test shall bear the inscriptions which it is proposed to affix on
the section of the container subjected to pressure,
2.2.1.1. The burst test under hydraulic pressure shall be carried out with equipment which enables
the pressure to be increased at an even rate until the container bursts and the change in
pressure over time to be recorded. The maximum flow rate during the test should not
exceed 3% of the capacity of the container per minute.

2.3.2. The water pressure in the container shall increase at an even rate until the test pressure of
3,000kPa is reached.
2.3.3. The container shall remain under the test pressure long enough to make it possible to
establish that the pressure is not falling off and that the container can be guaranteed leak
proof.
2.3.4. After the test the container shall show no signs of permanent deformation.
2.3.5. Any container tested which does not pass the test shall be rejected.
2.3.6. Additional Hydraulic Tests to be Performed on All-composite Containers
2.3.6.1. Ambient Temperature Pressure Cycling Test
2.3.6.1.1. Test Procedure
The finished container shall be pressure cycled to a maximum of 20 000 cycles, according
to the following procedure:
(a)
(b)
fill the container to be tested with a non-corrosive fluid such as oil, inhibited water or
glycol;
cycle the pressure in the container between not more than 300kPa and not less
than 3,000kPa at a rate not to exceed 10 cycles per minute.
This cycle shall be performed at least 10,000 times and continued until 20,000 times
unless a leak before break appears;
(c)
the number of cycles to failure shall be reported, along with the location and
description of the failure initiation.
2.3.6.1.2. Test Interpretation
2.3.6.1.3. Retesting
Before reaching 10,000 cycles, the container shall not fail or leak.
After completing 10,000 cycles, the container may leak before break.
Retesting is permitted for the ambient temperature pressure cycling test.
A second test shall be performed on two containers which have been produced
successively to the first container within the same batch.
If the results of these tests are satisfactory, the first test shall be ignored.
In the event where one or both of the retests fail to meet the requirements, the batch shall
be rejected.

2.3.6.3.3. Retesting
Retesting is permitted for the external leak test.
A second test shall be performed on two containers which have been produced
successively to the first container within the same batch.
If the results of these tests are satisfactory, the first test shall be ignored. In the event
where one or both of the retests fail to meet the requirements, the batch shall be rejected.
2.3.6.4. Permeation Test
2.3.6.4.1. Test Procedure
All the tests shall be performed at 40°C on a container fuelled with commercial propane at
80% of its water capacity.
The test shall be held during at least 8 weeks until the steady state permeation of the
structure is observed during at least 500h.
Then, the rate of the container weight loss shall be measured.
The graph of mass change per number of days shall be recorded.
2.3.6.4.2. Test Interpretation
2.3.6.4.3. Retesting
The rate of mass loss shall be less than 0.15g/h.
Retesting is permitted for the permeation test.
A second test shall be performed on two containers which have been produced
successively to the first container within the same batch.
If the results of these tests are satisfactory, the first test shall be ignored. In the event
where one or both of the retests fail to meet the requirements, the batch shall be rejected.
2.3.6.5. LPG Cycling Test
2.3.6.5.1. Test Procedure
A container having successfully passed the permeation test shall be submitted to an
ambient temperature pressure cycling test according to the requirements of
Paragraph 2.3.6.1. of this Annex.
The container shall be sectioned and the liner/end boss interface shall be inspected.

2.3.6.6.3. Test Interpretation
2.3.6.6.4. Retesting
The maximum allowed volume increase is 5%. The container shall meet the requirements
of the external leak test as defined in Paragraph 2.4.3. of this Annex and the burst test as
defined in Paragraph 2.2 of this Annex.
Retesting is permitted for the high temperature creep test.
A second test shall be performed on two containers which have been produced
successively to the first container within the same batch.
If the results of these tests are satisfactory, the first test shall be ignored.
In the event where one or both of the retests fail to meet the requirements, the batch shall
be rejected.
2.4. Non–destructive Examination
2.4.1. Radiographic examination
2.4.1.1. Welds shall be radiographed in compliance with ISO Specification R 1106, using
Classification B.
2.4.1.2. When a wire-type indicator is used, the smallest diameter of the wire visible may not
exceed the value of 0.10mm.
When a stepped and holed type indicator is used, the diameter of the smallest hole visible
may not exceed 0.25mm.
2.4.1.3. Assessment of the weld radiographs shall be based on the original films in compliance
with the practice recommended in Standard ISO 2504, Paragraph 6.
2.4.1.4. The following defects are not acceptable
Cracks, inadequate welds or inadequate penetration of the weld.
2.4.1.4.1. For the container wall thickness ≥4mm, the inclusions listed below are regarded as
acceptable:
Any gas inclusion measuring not more than a/4mm;
Any gas inclusion measuring more than a/4mm but not more than a/3mm, which is more
than 25mm away from other gas inclusion measuring more than a/4mm and measuring
not more than a/3mm;
Any elongated inclusion or any group of rounded inclusions in a row where the length
represented (over a weld length of 12a) is not greater than 6mm;
Gas inclusions over any 100mm weld length, where the total area of all the figures is not
greater than 2a mm .

(e)
(f)
(g)
same or smaller diameter (cylindrical container),
same height or smaller height (special container shape),
same or smaller external surface,
(h) same configuration of accessories fitted to the container.
2.6.2. Container Set-up
(a)
(b)
(c)
(d)
(e)
The container shall be placed in the designed position by the manufacturer with the
container bottom approximately 100mm above the fire source;
Shielding shall be used to prevent direct flame impingement on the fusible plug
(PRD) if present. The shielding shall not be in direct contact with the fusible plug
(PRD).
Any failure during the test of a valve, fitting or tubing that is not part of the intended
protection system for the design shall invalidate the result.
Containers with a length of less than 1.65m: The centre of the container shall be
positioned over the centre of the fire source.
Containers with a length equal to or larger than 1.65m: If the container is fitted with
a pressure relief device at one side, the fire source shall commence at the opposite
side of the container. If the container is fitted with pressure relief devices at both
sides, or at more than one location along the length of the container, the centre of
the fire source shall be centred midway between the pressure relief devices that are
separated by the greatest horizontal distance.
2.6.3. Fire Source
A uniform fire source of 1.65m length shall provide direct flame impingement on the
container surface across its entire diameter.
Any fuel may be used for the fire source provided that it supplies uniform heat sufficient to
maintain the specified test temperatures until the container is vented. The arrangement of
the fire shall be recorded in sufficient detail to ensure that the rate of heat input to the
container is reproducible. Any failure or inconsistency of the fire source during a test shall
invalidate the result.
2.6.4. Temperature and Pressure Measurements
During the bonfire test the following items shall be measured:
(a)
(b)
The fire temperature just below the container, along the bottom of the container, at
minimum two locations, not more than 0.75m apart;
The wall temperature in the bottom of the container;

(iii)
(iv)
(v)
(vi)
Applied method including time interval between measurements.
The elapsed time from ignition of the fire to the start of venting of LPG and
actual pressure.
Time to reach atmospheric pressure.
Pressure and temperature diagrams.
2.7. Impact Test
2.7.1. General
At the choice of the manufacturer, all the impact tests may be carried out on one container
or each may be carried out on a different container.
2.7.2. Test Procedure
For this test, the fluid medium shall be water/glycol mixture or another liquid having a low
freezing point which does not change the properties of the container material.
A container filled with the fluid medium to the weight that equals the filling with 80% of
LPG with a reference mass of 0.568kg/l, is projected, parallel to the length axle (x-axis in
Figure 1) of the vehicle in which it is intended to be fitted at a velocity, V of 50km/h,
against a solid wedge, fixed horizontally, perpendicular to the movement of the container.
The wedge shall be installed so that the centre of gravity (c.g.) of the container hits the
centre of the wedge.
The wedge shall have an angle α of 90° and the point of impact shall be rounded with a
maximum radius of 2.5mm.
The length of the wedge L, shall be at least equal to the width of the container in respect to
its movement during the test. The height H of the wedge shall be at least 600mm
Note: c.g = centre of gravity
Figure 1
Description of the Impact Test Procedure

2.8.3. Retesting
Retesting is permitted for the drop test.
A second test shall be performed on two containers which have been produced
successively to the first container within the same batch.
If the results of these tests are satisfactory, the first test shall be ignored.
In the event where one or both of the retests fail to meet the requirements, the batch shall
be rejected.
2.9. Boss Torque Test
2.9.1. Test Procedure
The body of the container shall be restrained against rotation and a torque of 2 times the
valve or PRD installation torque specified by the manufacturer shall be applied to each
end boss of the container, first in the direction to tighten a threaded connection, then in the
untightening direction, and finally again in the tightening direction.
The container shall then be subjected to an external leak test in accordance with the
requirements shown in Paragraph 2.3.6.3 of this Annex.
2.9.2. Test Interpretation
2.9.3. Retesting
The container shall comply with the requirements of the external leak test as shown in
Paragraph 2.3.6.3 of this Annex.
Retesting is permitted for the boss torque test.
A second test shall be performed on two containers which have been produced
successively to the first container within the same batch.
If the results of these tests are satisfactory, the first test shall be ignored.
In the event where one or both of the retests fail to meet the requirements, the batch shall
be rejected.
2.10. Acid Environment Test
2.10.1. Test Procedure
A finished container shall be exposed for 100h to a 30% sulphuric acid solution (battery
acid with specific gravity of 1.219) while pressurised to 3,000kPa. During the test, a
minimum of 20% of the total area of the container has to be covered by the sulphuric acid
solution.
Then, the container shall be submitted to a burst test as defined in Paragraph 2.2 of this
Annex.

ANNEX 10 – APPENDIX 1
Figure 1
Types of Main Longitudinal Butt Welds
Figure 2
Circumferential Butt Weld

Figure 4
Examples of Welded Rings with Flange

(a) or (b)
(d)
(g)
(h)
(m1, m2)
tensile test on parent material
tensile test on a circumferential weld
bend test on a circumferential weld, the inner surface in tension
bend test on a circumferential weld, the outer surface in tension
macro sections through valve boss/plate welds (side-mounted valve block)
Figure 2a
Containers with Circumferential Welds only and Side-Mounted Valve Blocks;
Location of Test-Pieces
(m1, m2)
macro sections through valve boss/plate welds
(Refer to Figure 2a for other locations of test-pieces)
Figure 2b
Containers with Circumferential Welds only and Valve Boss/Plate Fitted to the End

ANNEX 10 – APPENDIX 4
Note: For torispherical ends
D
D
H = ⎢
]
⎣ 2
2


( R + b) − [( R + b) − ] [( R + b) + − 2( r + b) ⎥⎦

Relationship between H/D and Shape Factor C
Values of Shape Factor C for H/D between 0.25 and 0.50


2. COMPOSITE STRUCTURE
(a)
Fibres embedded in a matrix
Tensile properties:
ASTM 3039
Fibre-resin composites
ASTM D2343
Glass, Aramid
(tens.prop.yarns glass)
ASTM D4018.81
Carbon (tens.prop.continuous
filament) with special remark
for the matrix
Shear properties:
ASTM D2344
(Interlaminar shear
strength of parallel
fibre composite by
short beam method)
(b)
Dry fibres on an isotensoid shape
3. PROTECTIVE COATING
Tensile properties:
ASTM D4018.81
Carbon (continuous
filament),
other fibres.
UV-radiation degrades polymeric material when directly subjected to the sunlight.
Depending on the installation, the manufacturer has to proof a "safe life" for the coating.
4. THERMOPLASTIC COMPONENTS
The Vicat softening temperature of a thermoplastic component shall be above 70°C. For
structural components, the Vicat softening temperature shall be at least 75°C.
5. THERMOSET COMPONENTS
The Vicat softening temperature of a thermo-set component shall be above 70°C.
6. ELASTOMERIC COMPONENTS
The glass transition temperature (Tg) of an elastomer component shall be lower than
-40°C. The glass transition temperature shall be tested according ISO 6721 "Plastics –
Determination of dynamic mechanical properties". The Tg-onset is derived from the plotted
diagram storage modulus versus temperature by determining the temperature, where the
two tangents, which are representing the slopes of the diagram before and after the
dramatic loss of stiffness, intersects.

2.
GAS INJECTION DEVICE OR GAS MIXING PIECE
2.1.
Definition: see Paragraph 2.10. of this Regulation.
2.2.
Component Classification (according to Figure 1, Paragraph 2):
Class 2: for the part with a maximum regulated pressure during operation of 450kPa.
Class 2A: for the part with a maximum regulated pressure during operation of 120kPa.
2.3.
Classification Pressure:
Parts of Class 2:
Parts of Class 2A:
450kPa.
120kPa.
2.4. Design Temperatures:
-20°C to 120°C, when the fuel pump is mounted outside the container.
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
2.5. General Design Rules:
Paragraph 6.15.2., Provisions regarding the electrical insulation.
Paragraph 6.15.2.1., Provisions regarding the insulation class.
Paragraph 6.15.3.1., Provisions when the power is switched off.
Paragraph 6.15.4.1., Heat exchange medium (compatibility and pressure requirements).
2.6. Applicable test procedures:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12

ANNEX 12
PROVISIONS REGARDING THE APPROVAL OF THE GAS DOSAGE UNIT
WHEN NOT COMBINED WITH THE GAS INJECTION DEVICE(S)
1. Definition: see Paragraph 2.11. of this Regulation.
2. Component Classification (according to Figure 1, Paragraph 2):
Class 2: for the part with a maximum regulated pressure during operation of 450kPa.
Class 2A: for the part with a maximum regulated pressure during operation of 120kPa.
3. Classification Pressure:
Parts of Class 2: 450kPa.
Parts of Class 2A: 120kPa.
4. Design Temperatures:
-20°C to 120°C
For temperatures exceeding the above-mentioned values, special tests conditions are
applicable.
5. General Design Rules:
Paragraph 6.15.2., Provisions regarding the electrical insulation.
Paragraph 6.15.3.1., Provisions on valves activated by electrical power.
Paragraph 6.15.4., Heat exchange medium (compatibility and pressure requirements).
Paragraph 6.15.5., Overpressure bypass security.
6. Applicable Test Procedures:
Remarks:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12
The parts of the gas dosage unit (Class 2 or 2A) shall be leakproof with the outlet(s) of that part closed.
For the overpressure test all the outlets including those of the coolant compartment shall be closed off.

6.2. For parts of Class 2 or 2A:
Over pressure test
Annex 15, Paragraph 4
External leakage
Annex 15, Paragraph 5
High temperature
Annex 15, Paragraph 6
Low temperature
Annex 15, Paragraph 7
LPG compatibility
Annex 15, Paragraph 11
Corrosion resistance
Annex 15, Paragraph 12

ANNEX 15
TEST PROCEDURES
1. CLASSIFICATION
1.1. LPG components for use in vehicles shall be classified with regard to the maximum
operating pressure and function, according to Chapter 2 of this Regulation.
1.2. The classification of the components determines the tests which have to be performed for
type approval of the components or parts of the components.
2. APPLICABLE TEST PROCEDURES
In Table 1 the applicable test procedures dependent on the classification are shown.
Table 1
Test Class 0 Class 1 Class 2(A) Class 3 Paragraph
Overpressure x x x x 4.
External leakage x x x x 5.
High temperature x x x x 6.
Low temperature x x x x 7.
Seat leakage x x x 8.
Endurance/Functional tests x x x 9.
Operational test x x 10.
LPG compatibility x x x x 11.
Corrosion resistance x x x x 12.
Resistance to dry heat x x x 13.
Ozone ageing x x x 14.
Creep x x x 15.
Temperature cycle x x x 16.
Compatibility with heat
exchange fluid
x x 17.
3. GENERAL REQUIREMENTS
3.1. Leakage tests shall have to be conducted with pressurised gas like air or nitrogen.
3.2. Water or another fluid may be used to obtain the required pressure for the hydrostatic
strength test.
3.3. All test values shall indicate the type of test medium used, if applicable.

5.3. During this test the equipment under test (EUT) will be connected to a source of aerostatic
pressure (of 1.5 times the maximum pressure and in the case of a Class 3 component,
2.25 times the maximum classification pressure). A positive shut-off valve and a pressure
gauge having a pressure range of not less than 1.5 times nor more than 2 times the test
pressure are to be installed in the pressure supply piping. The pressure gauge is to be
installed between the positive shut-off valve and the sample under test. While under the
applied test pressure, the sample should be submerged in water to detect leakage or any
other equivalent test method (flow measurement or pressure drop).
Table 3
The Classification and Leakage Test Pressures According to the Classification:
Classification
of component
Classification pressure
[kPa]
Test pressure for leakage test
[kPa]
Class 0
WP
1.5 WP
Class 1
3,000
4,500
Class 2A
120
180
Class 2
450
675
Class 3
3,000
6,750
5.4. The external leakage shall be lower than the requirements stated in the Annexes or, if no
requirements are mentioned, the external leakage shall be lower than 15cm /h with the
outlet plugged, when submitted to a gas pressure equal to the leakage test pressure.
6. HIGH TEMPERATURE TEST
A LPG containing component shall not leak more than 15cm /h with the outlet plugged when
submitted to a gas pressure at maximum operating temperature, as indicated in the
Annexes, equal to the leakage test pressure (Table 3, Paragraph 5.3. above). The
component shall be conditioned for at least 8h at this temperature.
7. LOW TEMPERATURE TEST
A LPG containing component shall not leak more than 15cm /h with the outlet plugged when
submitted to a gas pressure, at the minimum operating temperature (-20°C), equal to the
leakage test pressure (Table 3, Paragraph 5.3. above). The component shall be conditioned
for at least 8h at this temperature.
8. SEAT LEAKAGE TEST
8.1. The following tests for seat leakage are to be conducted on samples of service valve or
filling unit which have previously been subjected to the external leak test of Paragraph 5
above.
8.1.1. Seat leakage tests are conducted with the inlet of the sample valve connected to a source of
aerostatic pressure, the valve in the closed position, and with the outlet open. A positive
shut-off valve and a pressure gauge having a pressure range of not less than 1.5 times nor
more than 2 times the test pressure are to be installed in the pressure supply piping. The
pressure gauge is to be installed between the positive shut-off valve and the sample under
test. While under the applied test pressure, observations for leakage are to be made with
the open outlet submerged in water unless otherwise indicated.

8.5. The seat of the upper non-return valve used in the assembly of a filling unit, when in the
closed position, shall be free from leakage at any aerostatic pressure between 50 and
3,000kPa.
8.6. The seat of a service coupling, when in the closed position, shall be free from leakage at
any aerostatic pressure between 0 to 3,000kPa.
8.7. The gas-tube pressure relief valve shall not have internal leakage up to 3,000kPa or up to
WP, in accordance with the classification pressure of the valve.
8.8. The pressure relief valve (discharge valve) shall not have internal leakage up to 2,600kPa.
9. ENDURANCE TEST
9.1. A filling unit or service valve shall be capable of conforming to the applicable leakage test
requirements of Paragraphs 5 and 8 above, after being subjected to a number of cycles of
opening and closing as mentioned in the Annexes to this Regulation.
9.2. A shut-off valve is to be tested with the valve outlet plugged. The valve body filled with
n-hexane, and the valve inlet subjected to a pressure of 3,000kPa or of WP in accordance
with the classification pressure of the valve.
9.3. An endurance test is to be conducted at a rate not faster than 10 times per minute. For a
shut-off valve, the closing torque is to be consistent with the size of handwheel, wrench, or
other means employed to operate the valve.
9.4. The appropriate tests for external and seat leakage, as described under external leakage
test under Paragraph 5. above and seat leakage test under Paragraph 8 are to be
conducted immediately following the endurance test.
9.5. Endurance for 80% stop valve.
9.5.1. The 80% stop valve shall be capable to withstand 6,000 complete filling cycles to the
maximum filling degree.
9.6. ENDURANCE TEST FOR PRESSURE REGULATOR AND VAPORIZER
The regulator shall be able to withstand 50,000 cycles without any failure when tested
according to the following procedure:
(a)
(b)
(c)
Recycle the regulator for 95% of the total number of cycles at room temperature and
at the classification pressure. Each cycle shall consist of flow until stable outlet
pressure has been obtained, after which the gas flow shall be shut off by a
downstream valve within 1s, until the downstream lock-up pressure has stabilized.
Stabilized outlet pressures are defined as set pressure ±15% for at least 5s.
Cycle the inlet pressure of the regulator for 1% of the total number of cycles at room
temperature from 100% to 50% of the classification pressure. The duration of each
cycle shall be no less than 10s.
Repeat the cycling procedure listed in Sub-paragraph (a) at 120°C at the
classification pressure for 1% of the total number of cycles.

10.1.3. Flow Capacity of Pressure Relief Valves - Test No. 2
10.1.3.1. The flow capacity of each of three samples of a pressure relief valve of a specific size,
design, and setting shall fall within a range of 10% of the highest observed capacity.
10.1.3.2. During flow capacity tests on each valve, there shall be no evidence of chattering or other
abnormal operating condition.
10.1.3.3. The blow-down pressure of each valve shall be not less than 65% of the initially recorded
start-to-discharge pressure.
10.1.3.4. A flow capacity test on a pressure relief valve is to be conducted at a flow rating pressure of
120% of the maximum set pressure.
10.1.3.5. A flow capacity test on a pressure relief valve is to be conducted by utilising a properly
designed and calibrated orifice flowmeter of the flange type connected to a source of air
supply of adequate capacity and pressure. Modifications of the flowmeter from that
described herein, and an aerostatic flow medium other than air, may be used provided the
end results are the same.
10.1.3.6. The flowmeter is to be arranged with sufficiently long lengths of pipe both preceding and
following the orifice, or other arrangements including straightening vanes, to assure no
disturbance at the orifice place for the ratios of orifice to pipe diameters to be employed.
Flanges between which the orifice plate is located and clamped are to be provided with
pressure take-off lines connected to a manometer. This instrument indicates the pressure
differential across the orifice plate and the reading is used in the flow calculation. A
calibrated pressure gauge is to be installed in that portion of the meter pipe downstream of
the orifice plate. This gauge indicates the flow pressure and the reading is also used in the
flow calculation.
10.1.3.7. A temperature-indicating instrument is to be connected to the meter pipe downstream of the
orifice plate to indicate the temperature of the air flowing to the safety valve. The reading of
this instrument is to be integrated in the calculation to correct the temperature of the air flow
to a 15°C base temperature. A barometer is to be available for indicating the prevailing
atmospheric pressure.
The reading of the barometer is to be added to the indicated air-flow gauge pressure. This
absolute pressure is similarly to be integrated in the flow calculation. The air pressure to the
flowmeter is to be controlled by a suitable valve installed in the air-supply piping ahead of
the flowmeter. The pressure relief valve under test is to be connected to the discharge end
of the flowmeter.
10.1.3.8. After all preparations for flow capacity tests have been made, the valve in the air-supply line
is to be opened slowly and the pressure to the valve under test is to be increased to the
appropriate flow rating pressure. During this interval, the pressure at which the valve "pops"
open is to be recorded as the popping pressure.

10.2. Operation Test Excess Flow Valve
10.2.1. An excess flow valve shall operate at not more than 10% above, nor less than 20% below
the rated closing flow capacity specified by the manufacturer, and shall close automatically
at a pressure differential across the valve of not more than 100kPa during the operation
tests described below.
10.2.2. Three samples of each size and style of valve are to be subjected to these tests. A valve
intended for use only with liquid is to be tested with water, otherwise the tests are to be
made both with air and with water. Except as indicated in Paragraph 10.2.3. below, separate
tests are to be run with each sample installed in vertical, horizontal and inverted positions.
The tests with air to be made without piping or other restriction connected to the outlet of the
tests sample.
10.2.3. A valve intended for installation in one position only may be tested only in that position.
10.2.4. The test with air is to be conducted by utilising a properly designed and calibrated orifice
flowmeter of the flange type, connected to a source of air supply of adequate capacity and
pressure.
10.2.5. The test sample is to be connected to the outlet of the flowmeter. A manometer or calibrated
pressure-gauge reading in increments of not more than 3kPa is to be installed on the
upstream side of the test sample to indicate the closing pressure.
10.2.6. The test is conducted by slowly increasing the flow of air through the flowmeter until the
check valve closes. At the instant of closing, the pressure differential across the flowmeter
orifice and the closing pressure indicated by the gauge are to be recorded. The rate of flow
at closing is then to be calculated.
10.2.7. Other types of flowmeters and a gas, other than air, may be used.
10.2.8. The test with water is to be conducted using a liquid flowmeter (or equivalent) installed in a
piping system having sufficient pressure to provide the required flow. The system is to
include an inlet piezometer or pipe at least one pipe size larger than the valve to be tested,
with a flow control valve connected between the flowmeter and piezometer. A hose or
hydrostatic relief valve, or both, may be used to reduce the effect of the pressure shock
when the excess flow valve closes.
10.2.9. The test sample is to be connected to the outlet end of the piezometer. A manometer or
calibrated pressure gauge of the retard type, which will permit readings in the range of 0 to
1,440kPa is to be connected to a pressure take-off on the upstream side of the test sample
to indicate the closing pressure. The connection is to be made using a length of rubber hose
between the pressure gauge and the pressure take-off, with a valve installed at the gauge
inlet to permit bleeding air from the system.
10.2.10. Prior to the test, the flow control valve is to be opened slightly, with the bleed valve at the
pressure gauge open, to eliminate air from the system. The bleed valve is then to be closed
and the test is conducted by slowly increasing the flow until the check valve closes. During
the test the pressure gauge is to be positioned at the same level as the test sample. At the
instant of closing, the rate of flow and closing pressure are to be recorded. When the excess
flow valve is at cut-off position, the leakage or by-pass rate of flow is to be recorded.

10.5.3. General
The following tests shall be carried out along each of the three orthogonal axes of the test
item.
10.5.4. Procedure A
10.5.4.1. Resonance Search
Resonant frequencies of the filling limiter shall be determined by varying the frequency of
applied vibration slowly through the specified range at reduced test levels but with sufficient
amplitude to excite the item. Sinusoidal resonance search may be performed using the test
level and cycling time specified for the cycling test, provided the resonance search time is
included in the required cycling test time of Paragraph 10.5.5.3. below
10.5.4.2. Resonance Dwell Test
The test item shall be vibrated for 30min along each axis at the most severe resonant
frequencies determined in Paragraph 10.5.5.1. below. The test level shall be 1.5g
(14.7m/sec ). If more than four significant resonant frequencies are found for any one axis,
the four most severe resonant frequencies shall be chosen for this test. If a change in the
resonant frequency occurs during the test, its time of occurrence shall be recorded and
immediately the frequency shall be adjusted to maintain the peak resonance condition. The
final resonant frequency shall be recorded. The total dwell test time shall be included in the
required cycling test time of Paragraph 10.5.5.3. below.
10.5.4.3. Sinusoidal Cycling Test
The test item shall be sinusoidally vibrated for 3h along each of its orthogonal axes in
accordance with:
An acceleration level of 1.5g. (14.7m/sec )
a frequency range of 5 to 200Hz,
a sweep time of 12min.
10.5.5. Procedure B
The frequency of applied vibration shall be swept over the specified range logarithmically.
The specified sweep time is that of an ascending plus a descending sweep.
10.5.5.1. The test shall be performed on a sinusoidal vibrating bench, at a constant acceleration of
1.5g and at frequencies ranging between 5 and 200Hz. The test shall last for 5h for each of
the axes specified in Paragraph 10.5.4. above. The frequency band 5-200Hz shall be
covered in each of the two senses in 15min.

11.2. Requirements:
maximum change in volume 20%
After storage in air with a temperature of 40°C for a period of 48h the mass compared to the
original value may not decrease more than 5%.
12. CORROSION RESISTANCE
12.1. A metal LPG containing component shall comply with the leakage tests mentioned in 4, 5, 6
and 7 and after having been submitted to 144h salt spray test according to ISO 9227, with
all connections closed.
or an optional test:
12.1.1. A metal LPG containing component shall comply with the leakage tests mentioned in 4, 5, 6
and 7 and after having been submitted to a salt spray test according to IEC 68-2-52 Kb: Salt
Spray Fog Test.
Test procedure:
Before the test the component shall be cleaned according to the instructions of the
manufacturer. All the connections shall be closed off. The component shall not be operated
during the test.
Subsequently the component shall be submitted during 2h to spraying with a solution of salt,
containing 5% NaCl (mass %) with less than 0.3% contamination and 95% distilled or
demineralised water, at a temperature of 20°C. After the spraying the component is stored
at temperature of 40°C and 90-95% relative humidity for 168h. This sequence shall be
repeated 4 times.
After the test the component shall be cleaned and dried during 1h at 55°C. The component
shall now be conditioned to reference conditions during 4h, before submitting it to further
testing.
12.2. A copper or brass LPG containing component shall comply with the leakage tests
mentioned in 4, 5, 6 and 7 and after having been submitted to 24h immersion in Ammonia
according to ISO 6957 with all connections closed.
13. RESISTANCE TO DRY-HEAT
The test has to be done in compliance with ISO 188. The test piece has to be exposed to air
at a temperature equal to the maximum operating temperature for 168h.
The allowable change in tensile strength should not exceed +25%.
The allowable change in ultimate elongation shall not exceed the following values:
Maximum increase 10%
Maximum decrease 30%

ANNEX 16
PROVISIONS REGARDING LPG IDENTIFICATION MARK K
FOR M AND M CATEGORY VEHICLES
The sign consists of a sticker which shall be weather resistant.
The colour and dimensions of the sticker shall fulfil the following requirements:
Colours:
Background
Border
Letters
:green
:white or whitee reflecting
:white or whitee reflecting
Dimensions
Border width
:4 - 6mm
Character height :≥25mm
Character thickness :≥4mm
Sticker width
:110 - 150mm
Sticker height
:80 - 110mm
The word "LPG" shall be centred in the middlee of the sticker.

Liquid Petroleum Gas (LPG) Vehicles.