Regulation No. 21-01
|Name:||Regulation No. 21-01|
|Official Title:||Uniform Provisions Concerning the Approval of: Vehicles with Regard to their Interior Fittings.|
|Country:||ECE - United Nations|
|Date of Issue:||1971-06-02|
|Amendment Level:||01 Series, Supplement 3|
|Number of Pages:||52|
|Subject Categories:||Occupant Protection|
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E/ECE/TRANS/505 ) Rev.1/Add.20/Rev.2/Amend.2
March 25, 2003
STATUS OF UNITED NATIONS REGULATION
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
VEHICLES WITH REGARD TO THEIR INTERIOR FITTINGS
Supplement 2 to the 01 series of amendments
Date of Entry into Force: 18.01.98
Corr. 1 to the 01 series of amendments
Supplement 3 to the 01 series of amendments
Date of Entry into Force: 31.01.03
REGULATION No. 21
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF VEHICLES WITH REGARD
TO THEIR INTERIOR FITTINGS
Application for approval
Modifications and extension of approval of the vehicle type
Conformity of production
Penalties for non-conformity of production
Production definitely discontinued
Names and addresses of technical services responsible for conducting approval tests, and of
Determination of the Head-impact Zone
Communication concerning the approval or extension or refusal or withdrawal of approval or
production definitely discontinued of a vehicle type with regard to its interior fittings,
pursuant to Regulation No. 21
Arrangements of the approval marks
Procedure for testing energy-dissipating materials
Procedure for determining the "H" point and the actual torso angle for seating positions in
Method of measuring projections
Apparatus and procedure for application of Paragraph 5.2.1. of this regulation
Determination of a dynamically determined head impact zone
Typical position of cylindrical test rod in the opening roof and window openings
2.3. "reference zone" is the head-impact zone as defined in Annex 1 to this Regulation, or at
the choice of the manufacturer, according to Annex 8, excluding the following areas: (see
Annex 10, explanatory notes, Paragraphs 2.3. and 2.3.1.)
2.3.1. the area bounded by the forward horizontal projection of a circle circumscribing the outer
limits of the steering control, increased by a peripheral band 127 mm in width; this area is
bounded below by the horizontal plane tangential to the lower edge of the steering control
when the latter is in the position for driving straight ahead; (see Annex 10, explanatory
notes, Paragraphs 2.3. and 2.3.1.)
2.3.2. the part of the surface of the instrument panel comprised between the edge of the area
specified in Paragraph 2.3.1. above and the nearest inner side-wall of the vehicle; this part
of the surface is bounded below by the horizontal plane tangential to the lower edge of the
steering control and; (see Annex 10, explanatory notes, Paragraphs 2.3. and 2.3.1.)
2.3.3. the windscreen side pillars; (see Annex 10, explanatory notes, Paragraphs 2.3. and 2.3.1.)
2.4. "level of the instrument panel" means the line defined by the points of contact of vertical
tangents to the instrument panel; (see Annex 10, explanatory notes, Paragraph 2.4.)
2.5. "roof" means the upper part of the vehicle extending from the upper edge of the
windscreen to the upper edge of the rear window and bounded at the sides by the upper
framework of the side-walls; (see Annex 10, explanatory notes, Paragraph 2.5.)
2.6. "belt line" means the line constituted by the transparent lower contour of the side windows
of the vehicle;
2.7. "convertible car" means a vehicle where, in certain configurations, there is no rigid part of
the vehicle body above the belt line with the exception of the front roof supports and/or the
roll-over bars and/or the seat belt anchorage points; (see Annex 10, explanatory notes,
Paragraphs 2.5. and 2.7.)
2.8. "vehicle with opening roof" means a vehicle of which only the roof or part of it can be
folded back or be opened, or may slide, leaving the existing structural elements of the
vehicle above the belt line; (see Annex 10, explanatory notes, Paragraph 2.5.)
2.9. "folding (tip-up) seat" means an auxiliary seat intended for occasional use and which is
normally folded out of the way.
2.10. "protective system" means interior fittings and devices intended to restrain the occupants.
2.11. "type of a protective system" means a category of protective devices which do not differ
in such essential respects as:
2.11.1. their technology;
2.11.2. their geometry;
2.11.3. their constituent materials.
3. APPLICATION FOR APPROVAL
3.1. The application for approval of a vehicle type with regard to its interior fittings shall be
submitted by the vehicle manufacturer or by his duly accredited representative.
3.2. It shall be accompanied by the undermentioned documents in triplicate and the following
a detailed description of the vehicle type with regard to the items mentioned in
Paragraph 2.2. above, accompanied by a photograph or an exploded view of the passenger
compartment. The numbers and/or symbols identifying the vehicle type shall be specified.
3.3. The following shall be submitted to the technical service responsible for conducting the
3.3.1. at the manufacturer's discretion, either a vehicle representative of the vehicle type to be
approved or the part or parts of the vehicle regarded as essential for the checks and tests
prescribed by this Regulation;
3.3.2. at the request of the aforesaid technical service, certain components and certain samples of
the materials used.
4.1. If the vehicle type submitted for approval pursuant to this Regulation meets the
requirements of Paragraph 5. below, approval of that vehicle type shall be granted.
4.2. An approval number shall be assigned to each type approved. Its first two digits (at present
01 corresponding to the 01 series of amendments which entered into force on
April 26, 1986) shall indicate the series of amendment incorporating the most recent major
technical amendments made to the Regulation at the time of issue of the approval. The
same Contracting Party may not assign the same number to another vehicle type.
4.3. Notice of approval or of extension or refusal or of withdrawal of approval or production
definitely discontinued of a vehicle type pursuant to this Regulation shall be communicated
to the Parties to the Agreement which apply this Regulation by means of a form conforming
to the model in Annex 2 to this Regulation.
5.1.2. Vehicle parts within the reference zone with the exception of those which are not part of the
instrument panel and which are placed at less than 10 cm from glazed surfaces shall be
energy-dissipating, as prescribed in Annex 4 to this Regulation. Those parts within the
reference zone which satisfy both of the following conditions shall also be excluded from
consideration if: (see Annex 10, explanatory notes, Paragraph 5.1.2.)
126.96.36.199. during a test in accordance with the requirements of Annex 4 of this Regulation, the
pendulum makes contact with parts outside the reference zone; and
188.8.131.52. parts to be tested are placed less than 10 cm away from the parts contacted outside the
reference zone, this distance being measured on the surface of the reference zone;
any metal support fittings shall have no protruding edges.
5.1.3. The lower edge of the instrument panel shall, unless it meets the requirements of
Paragraph 5.1.2. above, be rounded to a radius of curvature of not less than 19 mm. (see
Annex 10, explanatory notes, Paragraph 5.1.3.)
5.1.4. Switches, pull-knobs and the like, made of rigid material which, measured in accordance
with the method prescribed in Annex 6, project from 3.2 mm to 9.5 mm from the panel shall
have a cross sectional area of not less than 2 cm , measured 2.5 mm from the point
projecting furthest and shall have rounded edges with a radius of curvature of not less than
2.5 mm. (see Annex 10, explanatory notes, Paragraph 5.1.4.)
5.1.5. If these components project more than 9.5 mm from the surface of the instrument panel,
they shall be so designed and constructed as to be able, under the effect of a longitudinal
horizontal force of 37.8 daN delivered by a flat-ended ram of not more than 50 mm
diameter, either to retract into the surface of the panel until they do not project by more than
9.5 mm or to become detached; in the latter case, no dangerous projections of more than
9.5 mm shall remain; a cross-section of not more than 6.5 mm from the point of maximum
projection shall be not less than 6.5 cm in area. (see Annex 10, explanatory notes,
5.1.6. In the case of a projection comprising a component made of non-rigid material of less than
50 shore A hardness mounted on a rigid support, the requirements of Paragraphs 5.1.4. and
5.1.5. shall apply only to the rigid support or it shall be demonstrated by sufficient tests
according to the procedure described in Annex 4 that the soft material of less than 50 shore
A hardness will not be cut so as to contact the support during the specified impact test. In
that case the radius requirements shall not apply (see Annex 10, explanatory notes,
5.1.7. The following Paragraphs shall apply:
184.108.40.206. If the protective system of the vehicle type cannot prevent head contacts of the occupants
defined in Paragraph 1.2.1. of Annex 8 with the instrument panel, and a dynamic reference
zone according to Annex 8 is determined, the requirements of Paragraphs 5.1.2. to 5.1.6.
are applicable only to the parts located in that zone.
Parts in other areas of the dashboard above the level of the instrument panel, if contactable
by a 165 mm diameter sphere, shall be at least blunted.
5.3. Other interior fittings in the passenger compartment in front of the transverse plane passing
through the torso reference line of the manikin placed on the rearmost seats (see Annex 10,
explanatory notes, Paragraph 5.3.)
The requirements of Paragraph 5.3.2. below apply to control handles, levers and knobs and
to any other protruding objects not referred to in Paragraphs 5.1. and 5.2. above. (See also
Paragraph 5. 3. 2. 2.)
If the items referred to in Paragraph 5.3.1. above are so placed that occupants of the vehicle
can contact them, they shall meet the requirements of Paragraphs 220.127.116.11. to 5.3.4. If they
can be contacted by a 165 mm diameter sphere and are above the lowest "H" point (see
Annex 5 of this Regulation) of the front seats and forward of the transverse plane of the
torso reference line of the manikin on the rearmost seat, and outside the zones defined in
Paragraphs 2.3.1. and 2.3.2., these requirements shall be considered to have been
fulfilled if: (see Annex 10, explanatory notes, Paragraph 5.3.2.)
18.104.22.168. their surface terminates in rounded edges, the radii of curvature being not less than 3.2 mm;
(see Annex 10, explanatory notes, Paragraph 22.214.171.124.)
126.96.36.199. control levers and knobs shall be so designed and constructed that, under the effect of a
forward acting longitudinal horizontal force of 37.8 daN either the projection in its most
unfavourable position is reduced to not more than 25 mm from the surface of the panel or
the said fittings become detached or bent; in the two latter cases no dangerous projections
shall remain. Window winders may, however, project 35 mm from the surface of the panel;
(see Annex 10, explanatory notes, Paragraph 188.8.131.52.)
184.108.40.206. the handbrake control, when in the released position, and the gear lever, when in any
forward gear position, have, except when placed in the zones defined in Paragraphs 2.3.1.
and 2.3.2. and in the zones below the horizontal plane passing through the "H" point of the
front seats, a surface area of not less than 6.5 cm measured at a cross-section normal to
the longitudinal horizontal direction up to a distance of 6.5 mm from the part projecting
furthest, the radius of curvature being not less than 3.2 mm. (see Annex 10, explanatory
notes, Paragraph 220.127.116.11.)
5.3.3 The requirements in Paragraph 18.104.22.168. shall not apply to a floor-mounted handbrake
control; for such controls, if the height of any part in the released position is above a
horizontal plane passing through the lowest "H" point of the front seats (see Annex 5 of this
Regulation) the control shall have a cross sectional area of at least 6.5 cm measured in a
horizontal plane not more than 6.5 mm from the furthest projecting part (measured in the
vertical direction). The radius of curvature shall not be less than 3.2 mm.
5.5. Vehicles with an Opening Roof (see Annex 10, explanatory notes, Paragraph 5.5.)
22.214.171.124. The following requirements and those of Paragraph 5.4. above shall apply to vehicles with
an opening roof when the roof is in the closed position.
126.96.36.199. In addition, the opening and operating devices shall: (see Annex 10, explanatory notes,
Paragraphs 188.8.131.52., 184.108.40.206.1., and 220.127.116.11.2.)
18.104.22.168.1. be so designed and constructed as to exclude accidental or inopportune operation as far as
possible; (see Annex 10, explanatory notes, Paragraphs 22.214.171.124., 126.96.36.199.1., and 188.8.131.52.2.)
184.108.40.206.2. their surfaces shall terminate in rounded edges, the radii of curvature being not less than
5 mm; (see Annex 10, explanatory notes, Paragraphs 220.127.116.11., 18.104.22.168.1., and 22.214.171.124.2.)
126.96.36.199.3. be accommodated, when in the position of rest, in areas which cannot be touched by a
sphere 165 mm in diameter. If this condition cannot be met, the opening and operating
devices shall, in the position of rest, either remain retracted or be so designed and
constructed, that, under the effect of a force of 37.8 daN applied in the direction of impact
defined in Annex 4 to this Regulation as the tangent to the trajectory of the headform, either
the projection as described in Annex 6 to this Regulation shall be reduced to not more than
25 mm beyond the surface on which the devices are mounted or the devices shall become
detached; in the latter case, no dangerous projections shall remain. (see Annex 10,
explanatory notes, Paragraph 188.8.131.52.3.)
5.5.2. In addition, power-operated roof-panel systems and their controls shall meet the
requirements of Paragraph 5.8. below.
5.6. Convertible Vehicles (see Annex 10, explanatory notes, Paragraph 5.6.)
5.6.1. In the case of convertible vehicles, only the underside of the top of the roll-bar and the top of
the windscreen frame in all its normal utilisation positions shall comply with the requirements
of Paragraph 5.4. The system of folding rods or links used to support a non-rigid roof shall,
where they are situated above and forward of the occupants, exhibit no dangerous
roughness or sharp edges, directed rearwards or downwards. (see Annex 10, explanatory
notes, Paragraph 5.6.1.)
5.8. Power-operation of Windows, Roof-panel Systems and Partition Systems
5.8.1. The requirements below apply to power-operation of windows/roof-panel systems/partition
systems to minimize the possibility of injuries caused by accidental or improper operation.
5.8.2. Normal Operating Requirements
Except as provided in Paragraph 5.8.3., power-operated windows/roof-panel
systems/partition systems may be closed under one or more of the following conditions:
184.108.40.206. When the ignition key is inserted in the ignition control in any position of use or in an
equivalent condition in case of a non mechanical device;
220.127.116.11. When the power key has been used to activate the power supply to the power operated
windows, partitions or roof panel systems;
18.104.22.168. By muscular force unassisted by power supply of the vehicle;
22.214.171.124. On continuous activation of a closing system located on the exterior of the vehicle;
126.96.36.199. During the interval of time between the moment the ignition has been switched off or the
ignition key has been removed, or an equivalent condition has happened in case of a non
mechanical device, and the moment that neither of the two front doors has been opened
sufficiently to permit egress of occupants;
188.8.131.52. When the closing movement of a power-operated window, roof panel or partition starts at an
opening not exceeding 4 mm;
184.108.40.206. When the power-operated window of a vehicle's door without an upper door frame closes
automatically whenever the pertinent door is closed. In this case the maximum opening, as
defined in Paragraph 2.15., prior to window closing, shall not exceed 12 mm.
220.127.116.11. Remote closing shall be allowed by continuous activation of a remote actuation device,
provided one of the following conditions is fulfilled:
18.104.22.168.1. The operation distance between the actuation device and the vehicle shall not exceed 6 m;
22.214.171.124.2. The operation distance between the actuation device and the vehicle shall not exceed 11 m,
provided that the system requires a direct line of sight between the actuation device and the
vehicle. This may be tested by placing an opaque surface between the actuation device
and the vehicle.
126.96.36.199. One-touch closing shall be permitted only for the power-operated window of the driver's
door and the roof panel, and only during the time when the ignition key is in the engine
running position. It is also allowed when the engine has been switched off or the ignition
key/power key has been removed, or an equivalent condition has happened in case of a
non mechanical device, as long as neither of the two front doors has been opened
sufficiently to permit egress of occupants.
5.8.5. Protection Devices
All protection devices which are used to prevent damage to the power source in the case of
an overload or stalling shall reset themselves after the overload or the automatic switch
off. After resetting of the protection devices, the motion in the closing direction shall not
resume without a deliberate action on the control device.
5.8.6. Handbook Instructions
188.8.131.52. The owner's manual of the vehicle shall contain clear instructions relating to the
power-operated window/roof panel/partition, including:
184.108.40.206.1. Explanation of possible consequences (entrapment),
220.127.116.11.2. Use of the driver-controlled switch,
18.104.22.168.3. A "WARNING" message indicating the dangers, particularly to children in the case of
improper use/activation of the power-operated windows/roof panel systems/partition
systems. This information should indicate the responsibilities of the driver, including
instructions for other occupants and the recommendation to leave the vehicle only if the
ignition key/power key has been removed, or an equivalent condition has happened in case
of a non mechanical device,
22.214.171.124.4. A "WARNING" message indicating that special care should be taken when using remote
closing systems (see Paragraph 126.96.36.199.), for example to actuate it only when the operator
has a clear view of the vehicle to be sure that nobody can be trapped by power-operated
windows/roof panel/partition equipment.
5.8.7. If a power-operated window, roof-opening and/or partition system is installed in a vehicle
that can not be tested according to the test procedures mentioned above the approval may
be granted if the manufactured can demonstrate an equal or improved protection-effect for
5.9. Other Non-specified Fittings
5.9.1. The requirements of Paragraph 5. shall apply to such fittings not mentioned in previous
paragraphs which, within the meaning of the various requirements in Paragraphs 5.1. to 5.7.
and according to their location in the vehicle, are capable of being contacted by the
occupants. If such parts are made of a material of less than 50 shore A hardness, mounted
on a rigid support, the requirements in question shall apply only to the rigid support, or it can
be demonstrated by sufficient tests according to the procedure described in Annex 4 that
the soft material of less than 50 shore A hardness will not be cut during the specified impact
test. In that case the required radius shall apply to the soft surface only.
5.9.2. For parts like a centre console, for example, or other components of the vehicle which
belong to 5.9.1., it is not necessary to perform an energy dissipation test according to
Annex 4 to any component contactable by the device and procedure specified in Annex 1 if:
In the opinion of the Technical Service the occupant's head is unlikely to contact the
component, because of the restraint system(s) installed in the vehicle, or
Because the manufacturer can prove the lack of such contact using, for example, the
method described in Annex 8, or any equivalent method.
10. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR
CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS
The Parties to the Agreement applying this Regulation shall communicate to the United
Nations Secretariat the names and addresses of the technical services responsible for
conducting approval tests and of the administrative departments which grant approval and
to which forms certifying approval or refusal or withdrawal of approval, issued in other
countries, are to be sent.
(Maximum format: A4 (210 x 297 mm))
issued by: Name of administration
− APPROVAL GRANTED
− APPROVAL EXTENDED
− APPROVAL REFUSED
− APPROVAL WITHDRAWN
− PRODUCTION DEFINITELY DISCONTINUED
of a vehicle type with regard to its interior fittings pursuant to Regulation No. 21
Approval No................................................... .
Extension No. ................................
Trade name or mark of the vehicle: .....................................................................................................
Manufacturer's name and address:......................................................................................................
If applicable, name and address of manufacturer's representative: ....................................................
Vehicle submitted for approval on:.......................................................................................................
Technical service responsible for conducting approval tests:..............................................................
Date of test report:................................................................................................................................
Number of test report: ..........................................................................................................................
ARRANGEMENTS OF THE APPROVAL MARKS
(See Paragraph 4.4 of this Regulation)
The above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to
its interior fittings, been approved in the Netherlands (E 4) under approval No. 012439. The first two
digits of the approval number indicate that the approval was granted in accordance with the requirements
of Regulation No. 21 as amended by the 01 series of amendments.
(See Paragraph 4.5 of this Regulation)
The above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved
in the Netherlands (E4) pursuant to Regulation Nos. 21 and 33. The first two digits of the approval
numbers indicate that, on the date on which these approvals were granted, Regulation No. 21 included
the 01 series of amendments and Regulation No. 33 was still in its original form.
accuracy = ± 2.5% of real value;
sensitivity = 0.5 km/h.
1.3.3. Time recording:
the instrumentation shall enable the action to be recorded throughout its duration and
readings to be made to within one thousandth of a second;
the beginning of the impact at the moment of first contact between the headform and the
test component shall be noted on the recordings used for analysing the test.
1.4. Test Procedure (see Annex 10, explanatory notes to Paragraph 1.4. of Annex 4).
1.4.1. At every point of impact on the surface to be tested the direction of impact is the tangent to
the trajectory of the headform of the measuring apparatus defined in Annex l.
188.8.131.52. For testing the parts, as referred to in Paragraphs 184.108.40.206. and 220.127.116.11. of this Regulation,
the arm of the measuring apparatus shall be lengthened until contact is made with the part
to be considered, up to a limit of 1,000 mm between the pivot point and the top of the head
of the apparatus. However, any roof sticks or ribs referred to in Paragraph 18.104.22.168. which
cannot be contacted shall remain subject to the requirements of Paragraph 22.214.171.124. of this
Regulation, with the exception of that relating to the height of the projection.
1.4.2. Where the angle between the direction of impact and the perpendicular to the surface at the
point of impact is 5° or less, the test shall be carried out in such a way that the tangent to
the trajectory of the centre of percussion of the pendulum coincides with the direction of
impact. The headform shall strike the test component at a speed of 24.1 km/h or, in the
case of components which cover an uninflated airbag, at a speed of 19.3 km/h; this speed
shall be achieved either by the mere energy of propulsion or by using an additional impelling
1.4.3. Where the angle between the direction of impact and the perpendicular to the surface at the
point of impact is more than 5°, the test may be carried out in such a way that the tangent to
the trajectory of the centre of percussion of the pendulum coincides with the perpendicular
to the point of impact. The test speed shall then be reduced to the value of the normal
component of the speed prescribed in Paragraph 1.4.2.
2.1. In tests carried out according to the above procedures, the deceleration of the headform
shall not exceed 80 g continuously for more than 3 milliseconds. The deceleration rate
taken shall be the average of the readings of the two decelerometers.
3. EQUIVALENT PROCEDURES
3.1. Equivalent test procedures shall be permitted on condition that the results required in
Paragraph 2. above can be obtained.
3.2. Responsibility for demonstrating the equivalence of a method other than that described in
Paragraph 1. shall rest with the person using such a method.
2.7. "Design torso angle" means the angle measured between a vertical line through the
"R" point and the torso line in a position which corresponds to the design position of the
seat-back established by the vehicle manufacturer;
2.8. "Centreplane of occupant" (C/LO) means the median plane of the 3-D H machine
positioned in each designated seating position; it is represented by the co-ordinate of the
"H" point on the "Y" axis. For individual seats, the centreplane of the seat coincides with the
centreplane of the occupant. For other seats, the centreplane of the occupant is specified
by the manufacturer;
2.9. "Three-dimensional reference system" means a system as described in Appendix 2 to
2.10. "Fiducial marks" are physical points (holes, surfaces, marks or indentations) on the vehicle
body as defined by the manufacturer;
2.11. "Vehicle measuring attitude" means the position of the vehicle as defined by the
co-ordinates of fiducial marks in the three-dimensional reference system.
3.1. Data Presentation
For each seating position where reference data are required in order to demonstrate
compliance with the provisions of the present Regulation, all or an appropriate selection of
the following data shall be presented in the form indicated in Appendix 3 to this Annex:
3.1.1. the co-ordinates of the "R" point relative to the three-dimensional reference system;
3.1.2. the design torso angle;
3.1.3. all indications necessary to adjust the seat (if it is adjustable) to the measuring position set
out in Paragraph 4.3. below.
3.2. Relationship Between Measured Data and Design Specifications
3.2.1 The co-ordinates of the "H" point and the value of the actual torso angle obtained by the
procedure set out in Paragraph 4 below shall be compared, respectively, with the
co-ordinates of the "R" point and the value of the design torso angle indicated by the vehicle
3.2.2. The relative positions of the "R" point and the "H" point and the relationship between the
design torso angle and the actual torso angle shall be considered satisfactory for the seating
position in question if the "H" point, as defined by its co-ordinates, lies within a square of
50 mm side length with horizontal and vertical sides whose diagonals intersect at the
"R" point, and if the actual torso angle is within 5° of the design torso angle.
3.2.3. If these conditions are met, the "R" point and the design torso angle, shall be used to
demonstrate compliance with the provisions of this Regulation.
4.7. Adjust the feet and leg positions of the 3-D H machine as follows:
4.7.1. Designated seating position: driver and outside front passenger
126.96.36.199. Both feet and leg assemblies shall be moved forward in such a way that the feet take up
natural positions on the floor, between the operating pedals if necessary. Where possible
the left foot shall be located approximately the same distance to the left of the centreplane
of the 3-D H machine as the right foot is to the right. The spirit level verifying the transverse
orientation of the 3-D H machine is brought to the horizontal by readjustment of the seat pan
if necessary, or by adjusting the leg and foot assemblies towards the rear. The line passing
through the "H" point sight buttons shall be maintained perpendicular to the longitudinal
centreplane of the seat.
188.8.131.52. If the left leg cannot be kept parallel to the right leg and the left foot cannot be supported by
the structure, move the left foot until it is supported. The alignment of the sight buttons shall
4.7.2. Designated seating position: outboard rear
For rear seats or auxiliary seats, the legs are located as specified by the manufacturer. If
the feet then rest on parts of the floor which are at different levels, the foot which first comes
into contact with the front seat shall serve as a reference and the other foot shall be so
arranged that the spirit level giving the transverse orientation of the seat of the device
indicates the horizontal.
4.7.3. Other designated seating positions:
The general procedure indicated in Paragraph 4.7.1. above shall be followed except that the
feet shall be placed as specified by the vehicle manufacturer.
4.8. Apply lower leg and thigh weights and level the 3-D H machine.
4.9. Tilt the back pan forward against the forward stop and draw the 3-D H machine away from
the seat-back using the T-bar. Reposition the 3-D H machine on the seat by one of the
4.9.1. If the 3-D H machine tends to slide rearward, use the following procedure. Allow the 3-D H
machine to slide rearward until a forward horizontal restraining load on the T-bar is no
longer required i.e. until the seat pan contacts the seat-back. If necessary, reposition the
4.9.2. If the 3-D H machine does not tend to slide rearward, use the following procedure. Slide the
3-D H machine rearwards by applying a horizontal rearward load to the T-bar until the seat
pan contacts the seat-back (see Figure 2 of Appendix 1 to this Annex)
4.10. Apply a 100 ± 10 N load to the back and pan assembly of the 3-D H machine at the
intersection of the hip angle quadrant and the T-bar housing. The direction of load
application shall be maintained along a line passing by the above intersection to a point just
above the thigh bar housing (see Figure 2 of Appendix 1 to this Annex) . Then carefully
return the back pan to the seatback. Care must be exercised throughout the remainder of
the procedure to prevent 3-D H machine from sliding forward.
4.15. If a re-run of the installation of the 3-D H machine is desired, the seat assembly should
remain unloaded for a minimum period of 30 min prior to the re-run. The 3-D H machine
should not be left loaded on the seat assembly longer than the time required to perform the
4.16. If the seats in the same row can be regarded as similar (bench seat, identical seats, etc.)
only one "H" point and one "actual torso angle" shall be determined for each row of seats,
the 3-D H machine described in Appendix 1 to this Annex being seated in a place regarded
as representative for the row. This place shall be:
4.16.1. in the case of the front row, the driver's seat;
4.16.2. in the case of the rear row or rows, an outer seat.
ANNEX 5 - APPENDIX 1
3-D H Machine Elements Designation
ANNEX 5 − APPENDIX 2
THREE-DIMENSIONAL REFERENCE SYSTEM
1. The three-dimensional reference system is defined by three orthogonal planes established
by the vehicle manufacturer (see Figure).
2. The vehicle measuring attitude is established by positioning the vehicle on the supporting
surface such that the co-ordinates of the fiducial marks correspond to the values indicated
by the manufacturer.
3. The co-ordinates of the "R" point and the "H" point are established in relation to the fiducial
marks defined by the vehicle manufacturer.
Three-dimensional Reference System
METHOD OF MEASURING PROJECTIONS
1. To determine the amount by which an item projects in relation to the panel on which it is
mounted, a 165 mm diameter sphere shall be moved along and be kept in contact with the
component under consideration, starting from the initial position of contact with the
component under consideration. The projection's value is the largest of all possible
variations "y", the variation measured from the centre of the sphere perpendicular to the
1.1. If the panels and components, etc., are covered with materials softer than 50 shore A
hardness, the procedure for measuring the projections described above shall apply only
after removal of such materials.
2. The projection of switches, pull-knobs, etc., situated in the reference area shall be
measured by using the test apparatus and procedures described below:
2.1.1. The apparatus for measuring projections shall consist of a hemispherical headform 165 mm
in diameter in which there is a sliding ram of 50 mm diameter.
2.1.2. Relative positions of the flat end of the ram and the edge of the headform shall be shown as
a graduated scale on which a mobile index shall register the maximum measurement
achieved when the apparatus is moved away from the item tested. A minimum distance of
30 mm shall be measurable; the measuring scale shall be graduated in half-millimetres to
make possible an indication of the extent of the projections in question.
2.1.3. Gauging procedure
184.108.40.206. The apparatus shall be placed on a flat surface so that its axis is perpendicular to that
surface. When the flat end of the ram contacts the surface, the scale shall be set at zero.
220.127.116.11. A 10 mm strut shall be inserted between the flat end of the ram and the retaining surface; a
check shall be made to ensure that the mobile index records this measurement.
2.1.4. The apparatus for measuring projections is illustrated in the figure of the Appendix to this
2.2. Test Procedure
2.2.1. A cavity shall be formed in the headform by pulling back the ram and the mobile index shall
be placed against the ram.
2.2.2. The apparatus shall be applied to the projection to be measured so that the headform
contacts the maximum surrounding surface area with a force not exceeding 2 daN.
2.2.3. The ram shall be pushed forward until it makes contact with the projection to be measured
and the amount of the projection shall be observed on the scale.
ANNEX 6 - APPENDIX
Apparatus for Measuring Projections
DETERMINATION OF A DYNAMICALLY
DETERMINED HEAD IMPACT ZONE
1. DETERMINATION OF THE DYNAMICALLY DETERMINED HEAD IMPACT ZONE WITH
REGARD TO THE PROTECTIVE SYSTEM
1.1. Differing from the procedure described in Annex 1 the applicant may prove, by a procedure
accepted by the technical service responsible for conducting the tests, that a dynamically
determined head impact zone is relevant for this vehicle type.
1.2. A suitable method to prove a dynamically determined head impact zone may be either:
1.2.1. Vehicle Impact Tests
To determine the sequence of movement of the occupants with regard to the protective system
installed in the vehicle type, using the frontal impact conditions in the range of ± 30° against a
fixed rigid barrier with an impact speed of at least 48.3 km/h. Normally it will be sufficient to
test at 0°, +30° and -30°.
The dynamically determined head impact zone has to be evaluated for the occupants
represented by adult dummies of the types 5 percentile female, 50 percentile male and 95
percentile male, each placed in its recommended seating position before the test as defined by
the manufacturer, or
1.2.2. Sled Tests
The sequence of movement shall be investigated under the effect of the deceleration-time
diagram as shown in Annex 8 of Regulation No. 16 (change of velocity 50 km/h) respecting the
above prescribed dummy family and producing a direction of a forward displacement of the
respective dummies corresponding to the movement of the dummies during real frontal impact
tests according to Paragraph 1.2.1.
The direction of the forward displacement of the dummies is deemed satisfactory, if the centre
line of the test object, normally a body shell, covers the range of ± 18° from the longitudinal
centreline of the sled. Normally it will be sufficient to test at 0°, +18° and -18°, or
1.2.3. Simulated Impact Testing
The sequence of movements of the occupants, represented by the dummy family described in
Paragraph 1.2.1. above shall be investigated as described in Paragraphs 1.2.1. or 1.2.2.
above. The simulation method shall be validated by at least three of the impact conditions as
prescribed in Paragraphs 1.2.1. or 1.2.2. above.
2. The dynamically determined head impact zone includes all areas of the instrument panel that
may be contacted by the head of restraint occupants using the protective system installed in
the vehicle type.
TYPICAL POSITION OF CYLINDRICAL TEST ROD IN
THE OPENING ROOF AND WINDOW OPENINGS
The reference zone is outlined without rear view mirror. The energy-dissipation test is accomplished
without the rear view mirror. the pendulum shall not impact the mirror mounting.
Paragraphs 2.3. and 2.3.1.
The exempted area behind the steering wheel as defined by these Paragraphs is also valid for the head
impact area of the front passengers.
In the case of adjustable steering wheels the zone finally exempted is reduced to the common area of
the exempted zones for each of the driving positions which the steering wheel may assume.
In the case where it is possible to choose between various steering wheels the exempted zone is
determined by the use of the least favourable steering wheel having the smallest diameter.
The level of the instrument panel extends over the entire width of the passenger compartment and is
defined by the rearmost points of contact of a vertical line with the surface of the instrument panel when
the line is moved across the width of the vehicle. Where two or more points of contact occur
simultaneously, the lower point of contact shall be used to establish the level of the instrument panel. In
the case of consoles, if it is not possible to determine the level of the instrument panel by reference to the
points of contact of a vertical line the level of the instrument panel shall be where a horizontal line
25.4 mm above the "H" point of the front seats intersects the console.
At the vehicle sides the roof shall commence at the upper edge of the door aperture. In the normal case,
the lateral roof limits will be represented by the contours formed by the bottom edge (lateral view) of the
remaining body when the door has been opened. In the case of windows, the lateral limitation of the roof
will be the continuous transparent line (penetration point of the lateral windowpanes). At the posts, the
lateral roof limitation will pass through the connecting line between the transparent lines. The definition
of Paragraph 2.5. is also valid for any opening for the roof, in the closed position, of a vehicle as defined
in Paragraphs 2.7. or 2.8. For measuring purposes, downward facing flanges shall be ignored. These
will be considered as forming part of the vehicle sidewall.
Grills are considered to comply with the regulations if they meet the minimum requirements of the
min. radius [mm]
min. radius [mm]
0 − 10 1.5 0.25 0.5
10 − 15 2.0 0.33 0.75
15 − 20 3.0 0.50 1.25
During the test, it is determined whether parts within the impact zone used for reinforcement may be
displaced or protrude so as to increase the hazards to passengers or the severity of injuries.
These two concepts (level and lower edge of the instrument panel) may be distinct. However, this point
is included in Paragraph 5.1. (…. above the level of the instrument panel …) and, therefore is applicable
only where these two concepts are combined. In the case where the two concepts are not combined,
i.e. where the bottom edge of the instrument panel is located below the level of the instrument panel, it
will be considered under Paragraph 18.104.22.168. by reference to Paragraph 5.8.
If a pull handle or knob has a width dimension equal to or more than 50 mm and is located in a zone
such that if it were less than 50 mm in width the maximum projection would be determined using the
headform measuring apparatus of Annex 6, Paragraph 2. The maximum projection shall be determined
in accordance with Annex 6, Paragraph 1., i.e. by using a 165 mm diameter sphere and determining the
maximum variation in height of the "y" axis. The cross-sectional area shall be measured in a plane
parallel to the surface on which the component is mounted.
The criterion to determine whether the parking brake control can be contacted is the use of:
the simulated head specified in Annex 1, if the control is located above or on the level of the instrument
panel (to be tested in accordance with Paragraph 5.1. and within the impact zone);
the knee specified in Annex 7 if the control element is located below the level of the instrument panel (in
this case the control lever is tested in accordance with Paragraph 22.214.171.124.).
The technical specifications listed in Paragraph 5.2.3. apply also to shelves and those parts of consoles
below the level of the instrument panel located between the front seats, provided that these are located
in front of the "H" point. If a cavity is closed it will be treated as a glove compartment and not be subject
to these specifications.
The dimensions specified refer to the surface before the addition of material of less than 50 shore A
hardness (see Paragraph 5.2.4.). Energy-dissipating tests shall be conducted in the spirit of Annex 4.
If a shelf becomes detached or breaks up, no dangerous features must result; this applies not only to the
rim but also to other edges facing into the passenger compartment as a result of the applied force.
The strongest part of the shelf shall be considered to be adjacent to a fixture. Also, "substantially
distorted" shall mean that, under the effect of the applied force, the deflection of the shelf, measured
from the initial point of contact with the test cylinder, must be a fold or a deformation visible to the naked
eye. Elastic deformation shall be admissible.
The length of the test cylinder shall be at least 50 mm.
"Other parts" shall include such parts as window catches, seat belt upper anchorages and other parts
located in the foot space and at the door side, unless these parts have been treated previously or are
exempted in the text.
The space between the forward bulkhead and the instrument panel which is located higher than the
bottom edge of the instrument panel is not subject to the specifications of Paragraph 5.3.
The 3.2 mm radius applies to all contactable components covered by Paragraph 5.3. when considered in
all positions of use.
As exceptions, glove compartments shall be considered only in the closed position; seat belts will
normally be considered only in the fastened position, but any part which has a fixed stowage position
shall also comply with the 3.2 mm radius requirement in that stowed position.
(See Paragraph 5.1.1. for definition of "sharp edges").
The downward projection shall be measured normal to the roof in accordance with Annex 6,
The width of the projecting part shall be measured at right angles to the line of the projection. In
particular the rigid roof sticks or ribs shall not project away from the inner surface of the roof more than
Any roof ribs on opening roofs must meet Paragraph 5.4. if they are contactable by a 165 mm diameter
Paragraphs 126.96.36.199., 188.8.131.52.1., 184.108.40.206.2.
The opening and operating devices when in a position of rest and with the roof closed must meet all of
the specified conditions.
The force of 37.8 daN is applied even if the original projection is 25 mm or less. The projection is
measured under the applied load.
The force of 37.8 daN applied in the direction of impact defined in Annex 4 as the tangent to the
trajectory of the headform is normally applied by means of a flat-ended ram of not more than 50 mm
diameter, but where this is not possible an equivalent method may be used; for instance, by removing
The "position of rest" means the position of the operating device when it is in the locked position.
The rod system of convertible tops does not represent a roll-over bar.
The top part of the windscreen frame starts above the transparent contour of the windscreen.
See Paragraph 5.1.1. for definition of "sharp edge".
In defining the head impact zone of the back of the front seats any structure necessary to support the
seat back shall be considered as a component of this seat back.
The padding of the seat frame structure shall also avoid dangerous roughness and sharp edges likely to
increase the risk of serious injuries to the occupants.