Regulation No. 63-02

Name:Regulation No. 63-02
Description:Noise - Mopeds.
Official Title:Uniform Provisions Concerning the Approval of Two-wheeled Mopeds with Regard to Noise.
Country:ECE - United Nations
Date of Issue:2013-12-02
Amendment Level:02 Series, Supplement 2
Number of Pages:35
Vehicle Types:Motorcycle
Subject Categories:Noise
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Keywords:

moped, approval, test, regulation, exhaust, type, engine, sound, system, surface, speed, paragraph, requirements, amendments, series, annex, noise, silencing, measured, measurements, level, made, maximum, date, measurement, track, microphone, measuring, mopeds, vehicle, force, figure, number, area, pressure, voids, entry, conditions, granted, absorption, manufacturer, point, content, line, tests, reference, outlet, order, means, fitted

Text Extract:

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E/ECE/324
) Rev.1/Add.62/Rev.1./Amend.2
E/ECE/TRANS/505 )
February 22, 2017
STATUS OF UNITED NATIONS REGULATION
ECE 63-02
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
TWO-WHEELED MOPEDS WITH REGARD TO NOISE
Incorporating:
00 series of amendments
Date of Entry into Force: 15.08.85
01 series of amendments
Date of Entry into Force: 08.03.99
Corr. 1 to the 01 series of amendments
Dated: 23.06.99
Corr. 2 to the 01 series of amendments
Dated: 05.06.01
Supplement 1 to the 01 series of amendments
Date of Entry into Force: 10.10.06
02 series of amendments
Date of Entry into Force: 03.11.13
Supplement 1 to the 02 series of amendments
Date of Entry into Force: 20.01.16
Supplement 2 to the 02 series of amendments
Date of Entry into Force: 09.02.17

REGULATION NO. 63-02
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF
TWO-WHEELED MOPEDS WITH REGARD TO NOISE
CONTENTS
REGULATION
1. Scope
2. Definitions
3. Application for Approval
4. Markings
5. Approval
6. Specifications
7. Modification and Extension of the Approval of the Moped Type or of the Type of Exhaust or
Silencing System(s)
8. Conformity of Production
9. Penalties for Non-conformity of Production
10. Transitional Provisions
11. Production Definitively Discontinued
12. Names and Addresses of Technical Services Responsible for Conducting Approval Tests,
and of Type Approval Authorities
ANNEXES
Annex 1 – Communication
Annex 2 – Arrangements of Approval Marks
Annex 3 – Methods and Instruments for Measuring the Noise made by Mopeds
Annex 4 – Maximum Sound Level Limits (New Mopeds)
Annex 5 – Specifications for the Test Site

2.4. "Silencing systems of different types" means silencing systems which differ in such
essential respects as:
2.4.1. That their components bear different trade names or marks;
2.4.2. That the characteristics of the materials constituting a component are different or that the
components differ in shape or size;
2.4.3. That the operating principles of at least one component are different;
2.4.4. That their components are assembled differently;
2.5. "Exhaust system component" means one of the individual constituent parts which, when
assembled, constitute the exhaust system (e.g. exhaust pipes, silencer) and, where
applicable, the intake device (air filter).
If the engine is fitted with an intake device (air filter and/or an intake noise absorber
essential in order to ensure conformity with noise-level limits), this device shall be
considered to be a component of the same importance as the exhaust system proper, and
be included in the list referred to in Paragraph 3.2.2. below and carry the markings
prescribed in Paragraph 4.1. below.
3. APPLICATION FOR APPROVAL
3.1. The application for approval of a moped type with regard to noise made by mopeds shall be
submitted by its manufacturer or by his duly accredited representative.
3.2. It shall be accompanied by the under mentioned documents in triplicate and the following
particulars:
3.2.1. A description of the moped type with regard to the items mentioned in Paragraph 2.2.
above. The numbers and/or symbols identifying the engine type and the moped type shall
be specified;
3.2.2. A list of the components, duly identified, constituting the exhaust or silencing system;
3.2.3. A drawing of the assembled exhaust or silencing system and an indication of its position on
the moped;
3.2.4. Detailed drawings of each component to enable it to be easily located and identified, and a
specification of the materials used.
3.3. At the request of the technical service responsible for conducting approval tests, the moped
manufacturer shall, in addition, submit a sample of the exhaust or silencing system.
3.4. A moped representative of the moped type to be approved shall be submitted to the
technical service responsible for conducting approval tests.

5.5. If the moped conforms to a moped type-approved, under one or more Regulations annexed
to the Agreement, in the country which has granted approval under this Regulation, the
symbol prescribed in Paragraph 5.4.1. above need not be repeated; in such a case the
Regulation and approval numbers and the additional symbols of all the Regulations under
which approval has been granted in the country which has granted approval under this
Regulation shall be placed in vertical columns to the right of the symbol prescribed in
Paragraph 5.4.1. above.
5.6. The approval mark shall be clearly legible and indelible.
5.7. The approval mark shall be placed close to or on the moped data plate.
5.8. Annex 2 to this Regulation gives arrangements of approval marks.
6. SPECIFICATIONS
6.1. General Specifications
6.1.1. The moped, its engine and its exhaust or silencing system shall be so designed, constructed
and assembled as to enable the moped, in normal use, despite the vibration to which it may
be subjected, to comply with the provisions of this Regulation.
6.1.2. The exhaust or silencing system shall be so designed, constructed and assembled as to be
able to resist the corrosive action to which it is exposed.
6.1.3. The following information shall be provided on the moped in an easily accessible but not
necessarily immediately visible location:
(a)
(b)
The manufacturer's name;
The target engine speed and the final result of the stationary test as defined in
Paragraph 3.2. of Annex 3 to this Regulation.
6.2. Specifications Regarding Sound Levels
6.2.1. Method of Measurement
6.2.1.1. The noise made by the moped type submitted for approval shall be measured by the two
methods described in Annex 3 to this Regulation for the moped in motion and for the moped
when stationary. In the case of a moped with an internal combustion engine that does not
operate when the moped is stationary, the emitted noise shall only be measured in motion.
6.2.1.2. The two values measured in accordance with the provisions of Paragraph 6.2.1.1. above
shall be entered in the test report and on a form conforming to the model in Annex 1 to this
Regulation.
6.2.1.3. The sound level measured by the method described in Paragraph 3.1. of Annex 3 to this
Regulation when the moped is in motion shall not exceed the limits prescribed (for new
mopeds and new exhaust or silencing systems) in Annex 4 to this Regulation for the
category to which the moped belongs.

9. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
9.1. The approval granted in respect of a moped type pursuant to this Regulation may be
withdrawn if the requirements laid down in Paragraph 8.1. above are not complied with, or if
the moped has failed to pass the tests provided for in Paragraph 8.2. above.
9.2. If a party to the Agreement which applies this Regulation withdraws an approval it has
previously granted, it shall forthwith so notify the other Parties to the 1958 Agreement
applying this Regulation, by means of a communication form conforming to the model in
Annex 1 of this Regulation.
10. TRANSITIONAL PROVISIONS
10.1. As from the official date of entry into force of the 02 series of amendments, no Contracting
Party applying this Regulation shall refuse to grant ECE approval under this Regulation as
amended by the 02 series of amendments.
10.2. As from 24 months after the date of entry into force of the 02 series of amendments,
Contracting Parties applying this Regulation shall grant type approvals only if the vehicle
type to be approved meets the requirements of this Regulation as amended by the 02 series
of amendments.
10.3. Contracting Parties applying this Regulation shall not refuse to grant extensions of type
approvals for existing types which have been granted according to the preceding series of
amendments to this Regulation.
10.4 Until 24 months after the date of entry into force of the 02 series of amendments to this
Regulation, no Contracting Party applying this Regulation shall refuse national or regional
type approval of a vehicle type approved to the preceding series of amendments to this
Regulation.
10.5 As from 24 months after the date of entry into force of the 02 series of amendments to this
Regulation, Contracting Parties applying this Regulation shall not be obliged to accept, for
the purpose of national or regional type approval, a vehicle type approved to the preceding
series of amendments to this Regulation.
10.6 Notwithstanding the transitional provisions above, Contracting Parties whose application of
this Regulation comes into force after the date of entry into force of the most recent series of
amendments are not obliged to accept type approvals which were granted in accordance
with any of the preceding series of amendments to this Regulation are only obliged to
accept type approval granted in accordance with the 02 series of amendments.
10.7. As from the official date of entry into force of Supplement 1 to the 02 series of amendments,
no Contracting Party applying this Regulation shall refuse to grant or refuse to accept type
approval according to Supplement 1 to 02 series of amendments to this Regulation.
10.8. As from 60 months after the date of entry into force of Supplement 1 to the 02 series of
amendments to this Regulation, Contracting Parties applying this Regulation shall grant type
approvals only if the vehicle type to be approved meets the requirements of this Regulation
as amended by Supplement 1 to the 02 series of amendments to this Regulation.

ANNEX 1
COMMUNICATION
(Maximum format: A4 (210 × 297mm)
issued by: Name of administration:
.................................................................
.................................................................
.................................................................
concerning:
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITELY DISCONTINUED
of a moped type with regard to noise pursuant to Regulation No. 63
Approval No. .............................. Extension No. ................................
1. Trade name or make of the moped ............................................................................................
2. Moped type ................................................................................................................................
3. Variant(s) (if applicable): ............................................................................................................
4. Version(s) (if applicable): ...........................................................................................................
5. Name and address of manufacturer: .........................................................................................
6. Name and address of manufacturer's representative (if applicable): ........................................
...................................................................................................................................................
7. Type(s) of original exhaust system(s): .......................................................................................
8. Type(s) of intake device(s) (if required in order to ensure conformity with noise-level limits): ..
...................................................................................................................................................
9. Type of engine ........................................................................................................................
10. Cycles: two-stroke or four-stroke (if applicable) ......................................................................

24. Approval granted/refused/extended/withdrawn
25. Position of approval mark on the moped: ..................................................................................
26. Place: .........................................................................................................................................
27. Date: ...........................................................................................................................................
28. Signature: ...................................................................................................................................
29. The following documents, bearing the approval number shown above, are annexed to this
communication:
(a)
(b)
(c)
Drawings, diagrams and plans of the engine and of the exhaust or silencing system;
Photographs of the engine and of the exhaust or silencing system;
List of duly identified components constituting the exhaust or silencing system.

ANNEX 3
METHODS AND INSTRUMENTS FOR MEASURING THE NOISE MADE BY MOPEDS
1. MEASURING INSTRUMENTS
1.1. Acoustic Measurements
1.1.1. General
1.1.2. Calibration
The apparatus used for measuring the sound pressure level shall be a sound level meter or
equivalent measuring system meeting the requirements of Class 1 instruments (inclusive of
the recommended windscreen, if used). These requirements are described in
IEC 61672 1:2002. Measurements shall be carried out using the time weighting "F" of the
acoustic measuring instrument and the "A" frequency weighting curve also described in
IEC 61672-1:2002. When using a system that includes periodic monitoring of the
A-weighted sound pressure level, a reading should be made at a time interval not greater
than 30ms. The instruments shall be maintained and calibrated in accordance with the
instructions of the instrument manufacturer.
At the beginning and at the end of every measurement session, the entire acoustic
measuring system shall be checked by means of a sound calibrator that fulfils the
requirements of Class 1 sound calibrators according to IEC 60942:2003. Without any further
adjustment, the difference between the readings shall be less than or equal to 0.5dB(A). If
this value is exceeded, the results of the measurements obtained after the previous
satisfactory check shall be discarded.
1.1.3. Compliance with Requirements
Compliance of the sound calibrator with the requirements of IEC 60942:2003 shall be
verified once a year. Compliance of the instrumentation system with the requirements of
IEC 61672-1:2002 shall be verified at least every 2 years. All compliance testing shall be
conducted by a laboratory which is authorized to perform calibrations traceable to the
appropriate standards.
1.2. Instrumentation for Speed Measurements
The rotational speed of the engine shall be measured with an instrument meeting
specification limits of at least ±2% or better at the engine speeds required for the
measurements being performed. The road speed of the vehicle shall be measured with
instruments meeting specification limits of at least ±0.5km/h when using continuous
measuring devices. If testing uses independent measurements of speed, this
instrumentation shall meet specification limits of at least ±0.2km/h

2.2. Moped
Table 1
Correction Applied to Individual Measured Test Value
Background sound pressure level difference to
10
11
12
13
14
≥15
measured sound pressure level, in dB
Correction, in dB(A)
0.5
0.4
0.3
0.2
0.1
0.0
2.2.1. The combined mass of the driver and test equipment used on the moped shall not be more
than 90kg nor less than 70kg. Weights shall be placed on the moped if the 70kg minimum is
not reached. While measurements are being taken, the moped shall be equipped as for
normal road use (with coolant, lubricants, fuel, tool kit, spare wheel and driver).
2.2.2. Tyre Selection and Condition
The tyres shall be appropriate for the moped and shall be inflated to the pressure
recommended by the moped manufacturer for the test mass of the moped.
The tyres shall be selected by the moped manufacturer and correspond to one of the tyre
sizes and types designated for the moped by the moped manufacturer. The minimum tread
depth shall be at least 80% of the full tread depth.
2.2.3. Before the measurements are started, the engine shall be brought to its normal operating
conditions as regards:
2.2.3.1. Temperatures;
2.2.3.2. Tuning;
2.2.3.3. Fuel;
2.2.3.4. Sparking plugs, carburettor(s), etc., (as appropriate).
2.2.4. If the moped is equipped with devices which are not necessary for its propulsion, but which
are used whilst the moped is in normal service on the road, those devices shall be in
operation in accordance with the specifications of the manufacturer.
3. METHODS OF TESTING
3.1. Measurement of Noise of Mopeds in Motion
3.1.1. General Conditions of Test
3.1.1.1. At least two measurements shall be made on each side of the moped. Preliminary
measurements may be made for adjustment purposes, but shall be disregarded.

3.2.1. Test Site - Local Conditions (see Figure 2)
3.2.1.1. Measurements shall be made on a stationary moped in an area which does not present a
great deal of disturbance to the sound field.
3.2.1.2. Every open space shall be considered as a suitable test site if it consists of a flat area
covered with concrete, asphalt or some other hard material having a high reflective capacity,
excluding compressed or other earth surfaces, in which one can trace a rectangle whose
sides are at least 3m from the extremities of the moped and inside which there is no
noticeable obstacle; in particular, the moped shall not be positioned at a distance of less
than 1m from a pavement edge when the exhaust noise is measured.
3.2.1.3. Nobody shall be in the measurement area, except the observer and the driver, whose
presence shall have no influence on the meter reading.
3.2.2. Disturbance Noise and Wind Interference
The ambient noise levels at each measuring point shall be at least 10dB(A) below the levels
measured during the tests at the same points.
3.2.3. Measuring method
3.2.3.1. Nature and number of measurements The maximum sound level expressed in A-weighted
decibels (dB(A)) shall be measured during the period of operation laid down in
Paragraph 3.2.3.3.2.1. below.
At least three measurements shall be taken at each measuring point.
3.2.3.2. Position and Preparation of the Moped
Before the measurements are started, the moped engine shall be brought to its normal
operating temperature. If the moped is equipped with automatic fans, no adjustment shall be
made to them during the measurement of the noise level.
While measurements are being made, the gear lever shall be in neutral. If the transmission
cannot be disconnected, the drive wheel of the moped should be allowed to run under noload
conditions by, for example, placing the moped on its stand.

3.2.3.3.2.2. The engine speed shall be gradually increased from idle to the target engine speed and held
constant within a tolerance band of ±5%. Then the throttle control shall be rapidly released
and the engine speed shall be returned to idle. The sound pressure level shall be measured
during a period consisting of constant engine speed of at least 1 S and throughout the entire
deceleration period. The maximum sound level meter reading shall be taken as the test
value.
A measurement shall be valid only if the test engine speed did not deviate from the target
engine speed by more than the specified tolerance of ±5% for at least 1 S.
3.2.3.3.2.3. Multi-mode exhaust system
3.2.3.3.3. Result
Mopeds equipped with a multiple mode, manually adjustable exhaust system shall be tested
in all modes.
3.2.3.3.3.1. Measurements shall be made at the microphone location(s) prescribed above. The
maximum A-weighted sound pressure level indicated during the test shall be noted,
retaining one significant figure behind the decimal place (e.g. 92.45 shall be noted as to
92.5 while 92.44 shall be noted as to 92.4). The test shall be repeated until three
consecutive measurements that are within 2.0dB(A) of each other are obtained at each
outlet.
The result for a given outlet is the arithmetic average of the three valid measurements,
mathematically rounded to the nearest integer value (e.g. 92.5 shall be noted as to 93 while
92.4 shall be noted as to 92).
3.2.3.3.3.2. For mopeds equipped with multiple exhaust outlets, the reported sound pressure level shall
be for the outlet having the highest average sound pressure level.
3.2.3.3.3.3. For mopeds equipped with a multi-mode exhaust system and a manual exhaust mode
control the reported sound pressure level shall be for the mode having the highest average
sound pressure level.
4. INTERPRETATION OF RESULTS FOR VEHICLES IN MOTION
The values taken shall be rounded off to the nearest whole decibel. If the figure following the
decimal point is between 0 and 4, the total is rounded down and if between 5 and 9, it is
rounded up.
Only the values of readings obtained from two consecutive measurements made on the
same side of the vehicle and not differing by more than 2dB(A) shall be accepted.
To allow for lack of precision in the readings, the result of each measurement shall be taken
as equal to the value obtained, minus 1dB(A).
If the average of the four readings does not exceed the maximum permissible level for the
category to which the tested vehicle belongs, the limit specified in Paragraph 6.2.1.3. of this
Regulation shall be deemed as being complied with. This average value shall constitute the
test result.

Figure 2
Measuring Positions for Stationary Mopeds
5. ORIGINAL EXHAUST (SILENCING) SYSTEM
5.1. Requirements for Silencers Containing Absorbent Fibrous Materials.
5.1.1. Fibrous absorbent material shall be asbestos-free and may be used in the construction of
silencers only if suitable devices ensure that the fibrous absorbent material is kept in place
for the whole time that the silencer is being used and it meets the requirements of any one
of Paragraphs 5.1.2., 5.1.3., 5.1.4. or 5.1.5. below.
5.1.2. After removal of the fibrous material, the sound level shall conform to the requirements of
Annex 4 to this Regulation.

5.1.4.2.3. The valve shall open when the exhaust gas back-pressure, measured at least 100mm
downstream of the intake flange, reaches a value of between 35 and 40kPa. Should such a
figure be unattainable because of the engine characteristics, the valve shall open when the
gas back-pressure reaches a level equivalent to 90% of the maximum that can be measured
before the engine stops. It shall close when this pressure does not differ by more than 10%
from its stabilized value with the valve open.
5.1.4.2.4. The time-delay switch shall be set for the duration of exhaust gases calculated on the basis
of the requirements of Paragraph 5.1.4.2.3. above.
5.1.4.2.5. Engine speed shall be 75% of the speed (S) at which the engine develops maximum power.
5.1.4.2.6. The power indicated by the dynamometer shall be 50% of the full-throttle power measured
at 75% of engine speed (S).
5.1.4.2.7. Any drainage holes shall be closed off during the test.
5.1.4.2.8. The entire test shall be completed within 48h. If necessary, a cooling period shall be allowed
after each hour.
5.1.4.3. Conditioning on a Test Bench:
5.1.4.3.1. The exhaust system shall be fitted to an engine representative of the type fitted to the
moped for which the system is designed, and mounted on a test bench.
5.1.4.3.2. Conditioning shall consist of three cycles.
5.1.4.3.3. Each test-bench cycle shall be followed by a break of at least six hours in order to
reproduce the effects of cooling and condensation.
5.1.4.3.4. Each test-bench cycle shall consist of six phases. The engine conditions for and the
duration of each phase shall be:
Phase Conditions Duration of phase in minutes
1
2
3
4
5
6
Idling
25% load at 75% S
50% load at 75% S
100% load at 75% S
50% load at 100% S
25% load at 10 % S
Total time
6
40
40
30
12
22
2h 30min
5.1.4.3.5. During this conditioning procedure, at the request of the manufacturer, the engine and the
silencer may be cooled in order that the temperature recorded at a point not more than
100mm from the exhaust gas outlet does not exceed that measured when the moped is
running at 75% of S in top gear. The engine and/or moped speeds shall be determined to
within +3%.
5.1.5. Exhaust gases are not in contact with fibrous materials and fibrous materials are not under
the influence of pressure variations.

Figure 4
Reference Point

ANNEX 5
SPECIFICATIONS FOR THE TEST SITE
1. INTRODUCTION
This annex describes the specifications relating to the physical characteristics and the laying of
the test track. These specifications, based on a special standard, describe the required
physical characteristics as well as the test methods for these characteristics.
2. REQUIRED CHARACTERISTICS OF THE SURFACE
A surface is considered to conform to this standard provided that the texture and voids content or
sound absorption coefficient have been measured and found to fulfil (all) the requirements of
Paragraphs 2.1. to 2.4. below and provided that the design requirements (Paragraph 3.2. below)
have been met.
2.1. Residual Voids Content
The residual voids content V , of the test track paving mixture shall not exceed 8%. For the
measurement procedure, see Paragraph 4.1. below.
2.2. Sound Absorption Coefficient
If the surface fails to conform to the residual voids content requirement, the surface is acceptable
only if its sound absorption coefficient, α, ≤ 0.10. For the measurement procedure, see
Paragraph 4.2. below. The requirements of this paragraph and Paragraph 2.1. above is met also
if only sound absorption has been measured and found to be α ≤ 0.10.
Note: The most relevant characteristic is the sound absorption, although the residual voids
content is more familiar among road constructors. However, sound absorption needs to be
measured only if the surface fails to conform to the voids requirement. This is because the latter
is connected with relatively large uncertainties in terms of both measurements and relevance and
some surfaces may therefore be rejected erroneously when the voids measurement only is used
as a basis.
2.3. Texture Depth
The texture depth (TD) measured according to the volumetric method (see Paragraph 4.3.
below) shall be:
2.4. Homogeneity of the Surface
TD ≥ 0.4mm
Every practical effort shall be made to ensure that the surface is made to be as homogeneous as
possible within the test area. This includes the texture and voids content, but it should also be
observed that if the rolling process results in more effective rolling at some places than others,
the texture may be different and unevenness causing bumps may also occur.

3.2. Design and Preparation of the Surface
3.2.1. Basic Design Requirements
Figure 1
Minimum Requirements for Test Surface Area.
The Shaded Part is the "Test Area"
The test surface shall meet four design requirements:
3.2.1.1. It shall be a dense asphaltic concrete.
3.2.1.2. The maximum chipping size shall be 8mm (tolerances allow from 6.3 to 10mm).
3.2.1.3. The thickness of the wearing course shall be ≥30mm.
3.2.1.4. The binder shall be a straight penetration grade bitumen without modification.

(f) The binder hardness expressed as PEN value shall be 40-60, 60-80 or even 80-100
depending on the climatic conditions of the country. The rule is that, as hard a binder as
possible shall be used, provided this is consistent with common practice;
(g)
The temperature of the mix before rolling shall be chosen so as to achieve by
subsequent rolling the required voids content. In order to increase the probability of
satisfying the specifications of Paragraphs 2.1. to 2.4. above, the compactness shall be
studied not only by an appropriate choice of mixing temperature, but also by an
appropriate number of passings and by the choice of compacting vehicle.
Table 1
Design Guidelines
Mass of stones, square mesh sieve (SM) >2mm
Mass of sand 0.063 Mass of filler SM <0.063mm
Mass of binder (bitumen)
Max. chipping size
Binder hardness
Polished stone value (PSV)
Compactness, relative to Marshall compactness
Target values
By total
mass of
mix
47.6%
38.0%
8.8%
5.8%
By mass
of the
aggregate
50.5%
40.2%
9.3%
N.A.
8mm
(see Paragraph 3.2.2. (f))
> 50
98%
Tolerances
± 5
± 5
± 2
± 0.5
6.3 – 10
4. TEST METHOD
4.1. Measurement of the Residual Voids Content
For the purpose of this measurement, cores have to be taken from the track in at least four
different positions which are equally distributed in the test area between Lines AA and BB
(see Figure 1). In order to avoid inhomogeneity and unevenness in the wheel tracks, cores
should not be taken in wheel tracks themselves, but close to them. Two cores (minimum)
should be taken close to the wheel tracks and one core (minimum) should be taken
approximately midway between the wheel tracks and each microphone location.
If there is a suspicion that the condition of homogeneity is not met (see Paragraph 2.4.of this
Annex), cores shall be taken from more locations within the test area. The residual voids
content has to be determined for each core, then the average value from all cores shall be
calculated and compared with the requirement of Paragraph 2.1. of this Annex. In addition, no
single core shall have a voids value which is higher than 10%. The test surface constructor is
reminded of the problem which may arise when the test area is heated by pipes or electrical
wires and cores must be taken from this area. Such installations shall be carefully planned with
respect to future core drilling locations. It is recommended to leave a few locations of size
approximately 200 x 300mm where there are no wires/pipes or where the latter are located
deep enough in order not to be damaged by cores taken from the surface layer.

6. DOCUMENTATION OF THE TEST SURFACE AND OF TESTS PERFORMED ON IT
6.1. Documentation of the Test Surface
The following data shall be given in a document describing the test surface:
6.1.1. The location of the test track.
6.1.2. Type of binder, binder hardness, type of aggregate, maximum theoretical density of the
concrete (D ), thickness of the wearing course and grading curve determined from cores from
the test track.
6.1.3. Method of compaction (e.g. type of roller, roller mass, number of passes).
6.1.4. Temperature of the mix, temperature of the ambient air and wind speed during laying of the
surface.
6.1.5. Date when the surface was laid and contractor.
6.1.6. All or at least the latest test results, including:
6.1.6.1. The residual voids content of each core.
6.1.6.2. The locations in the test area from where the cores for voids measurements have been taken.
6.1.6.3. The sound absorption coefficient of each core (if measured). Specify the results both for each
core and each frequency range as well as the overall average.
6.1.6.4. The locations in the test area from where the cores for absorption measurement have been
taken.
6.1.6.5. Texture depth, including the number of tests and standard deviation.
6.1.6.6. The institution responsible for tests according to Paragraphs 6.1.6.1. and 6.1.6.2. and the type
of equipment used.
6.1.6.7. Date of the test(s) and date when the cores were taken from the test track.
6.2. Documentation of Vehicle Noise Tests Conducted on the Surface
In the document describing the vehicle noise test(s) it shall be stated whether all the
requirements of this standard were fulfilled or not. Reference shall be given to a document
according to Paragraph 6.1. above describing the results which verify this.
Noise - Mopeds.