Non-Tariff Barriers

Non-Tariff Measure

NTM classification

B82: Testing requirement 

Date when the measure came into force

20 August 2003 

Publication where the measure is specified

Government Notice No. R. 862 (Government Gazette 25082) Of 20 June 2003 

Regulation where the measure is specified

Compulsory Specification For Child Restraints For Use In Motor Vehicles 

Country/Region applying the measure

South Africa 

The rationale of the measure

This specification applies to child restraint that are suitable for installation in power driven vehicles that have three or more wheels. 

Coded list of objectives

X: For purposes n.e.s. 

Description of the measure

6.1.4 Dynamic test
6.1.4.1 General

6.1.4.1.1 Child restraints of the universal, the restricted and the semi-universal category shall be tested on the test trolley using the test seat described in F.3 of this specification, and in accordance with 7.1.3.1.
6.1 .4.1 .2 Child restraints of the specific vehicle category shall be tested with each vehicle model for which the child restraint is intended. The test authority responsible for conducting the tests may reduce the number of vehicle models tested if the models do not differ much In respect of the features mentioned in 6.1.4.1.3(c).
6.1 .4.1 .3 Child restraints of the specific vehicle category may be tested in one of the following ways:
a) using a vehicle body shell on the test trolley, as given in 7,1.3.2; or
b) using a complete vehicle, as given in 7.1.3.3; or
c) using a sufficient number of parts of the vehicle body shell to be representative of the vehicle structure and impact surfaces.
If the child restraint is intended for use on the rear seat, the test areas shall include the back of the front seat, the rear seat, the floor pan, the B and C pillars, and the roof.
If the child restraint Is intended for use on the front seat, the testareas shall include the dashboard, the A pillars, the windscreen, any levers or knobs installed in the floor or on a console, the front seat, the floor pan and the roof.
If the child restraint is intended for use in combination with the adult safety belt{s), the appropriate adult belt(s) shall be included in the test.
The test authority responsible for conducting the tests may permit parts to be excluded from the test if they are found to be superfluous. The tests shall be conducted in accordance with 7.1.3.2.
6.1 .4.1 .4 If a child restraint system of the specific vehicle category is installed in the area behind the rearmost forward-facing adult seat position (for example, the luggage area), one test with the largest dummy on a complete vehicle, as given in 7. 1 .3.3, shall be performed. The tests given in 7. 1.3.2 may be conducted if required by the manufacturer.
6.1 .4.1 .5 In the case of a special-needs restraint every dynamic test specified in this specification for each mass group shall be performed twice: first, using the primary means of the restraint and, second, with all restraining devices in use. In these tests, special attention shall be given to the requirements given in 5.2.3 and 5.2.4.
6.1 .4.1 .6 In the case of a restraint of the non-integral class the safety belt used shall be the standard belt and its anchorage brackets shall be as given in annex B of this specification. This requirement does not apply to child restraints of the specific vehicle category where the safety belt of the vehicle shall be used.
6.1 .4.1 .7 The dynamic tests shall be conducted on child restraints that have not previously been under load.

6.1 ,4,1 .8 During the dynamic tests, no part of the child restraint that actually helps to keep the child in position shall break, no buckles or locking system or displacement system shall release, and the standard safety belt used to install the child restraint shall not become disengaged from any guide or locking device utilized in the tests.
6.1.4.2 Chest acceleration
6.1.4.2.1 The resultant chest acceleration during the dynamic tests shall not exceed 540 m/s^2, except during periods whose sum does not exceed 3 ms.
6,1.4.2.2 The vertical component of the acceleration from the abdomen towards the head shall not exceed 295 m/s^2. except during periods whose sum does not exceed 3 ms.
NOTE Chest acceleration limits do not apply when the newborn test manikin is used.
6.1.4.3 Abdominal penetration
During the verification described in G.4.5.3 of this specification, there shall be no visible sign that any part of the child restraint has penetrated the modelling clay in the abdomen,
7 Description of tests
7 A Tests of the assembled restraint
7.1.1 Corrosion
7.1.1.1 Position the metal items of the child restraint in a test chamber, in accordance with annex H of this specification. In the case of a child restraint that incorporates a retractor, unwind the strap to its full length minus 100 mm ± 3 mm. Except for short interruptions that might be necessary, for example to check and replenish the salt solution, the exposure test shall proceed continuously for a
period of 50h.
7.1.1.2 On completion of the exposure test, gently wash, or dip. the metal items of the child restraint in clean running water at a temperature not higher than 38 ̊ C, to remove any salt deposit that might have formed. Allow to dry at a room temperature of 18 ̊ C to 25 ͦ C for 24 h and inspect in accordance with 6.1.1.2,
7.1.2 Overturning
7.1 .2.1 Place the test manikin in the restraint installed in accordance with this specification and taking into account the manufacturer's Instructions and with the standard slack as specified in 7.1 .3.6.
7.1.2.2 Fasten the restraint to the test seat or vehicle seat. Rotate the entire seat around a horizontal axis contained in the median longitudinal plane of the seat through an angle of 360" at a speed of 2 7s to 57s. For the purposes of this test, a restraint intended for use in specific vehicles may be attached to the test seat described in annex F of this specification.
7.1.2.3 Repeat the test while rotating the seat in the reverse direction after, if necessary, the test manikin has been replaced in its initial position. With the rotational axis In the horizontal plane and at 90ͦ to that of tile two earlier tests, repeat the procedure in the two directions of rotation.
7.1.2.4 Do these tests while using both tile smallest and the largest appropriate manikin of the group(s) for which the restraining device is intended.
7.1.3 Dynamic tests
7.1 .3.1 Tests using the trolley and the test seat
7.1.3.1.1 Forward facing
7.1.3.1.1,1 The trolley and test seat used in this dynamic test shall meet the requirements given in annex F of this specification, and the dynamic crash test installation procedure shall be in accordance with annex I.
7.1.3.1.1.2 The trolley shall remain horizontal throughout deceleration.
7.1.3.1.1.3 Achieve the deceleration of the trolley by using the apparatus given in annex F of this specification, or any other device that gives equivalent results. This apparatus shall be capable of the performance specified in 7.1.3.4 and in annex J of this specification.
7.1.3.1.1.4 Make the following measurements and inspections:
a) the trolley speed, immediately before impact;
b) the stopping distance;
c) the displacement of the test manikin's head in the vertical and horizontal planes for group I, group II and group III restraints and, for group and group 0+ restraints, the displacement of the manikin (other than that of Its limbs);
d) the chest acceleration in three mutually perpendicular directions, except in the case of the newborn test manikin; and

e) any visible signs of penetration of the modelling clay in the abdomen (see 6.1.4.3), except in the case of the newborn test manikin.
7.1.3.1.1.5 Film the tests at frequency at least 500 frames per second.
7.1.3.1.1.6 After impact visually inspect the child restraint without opening the buckle, to determine whether there has been any failure or breakage.
7.1.3.1,2 Rearward facing
7.1 .3.1 .2.1 Rotate the test seat through an angle of 1 80^ in accordance with the requirements of the rear impact test
7.1.3.1.2.2 When a rearward-facing child restraint intended for use in the front seating position is being tested, the vehicle facia shall be represented by a rigid bar so attached to the trolley that all the energy absorption takes place in the child restraint.
7.1.3.1.2.3 The deceleration conditions shall satisfy the requirements of 7.1.3.4.
7.1.3.1.2.4 Make the measurements as given in 7.1.3.11.4.
7.1,3.1.2.5 Film the tests at least 500 frames per second.
7.1,3.1.2.6 After impact visually inspect the child restraint without opening the buckle, to determine whether there has been any failure or breakage.
7.1.3.2 Test using the trolley and the vehicle body shell
7.1.3.2.1 Forward facing
7.1 .3.2.1 .1 The method used to secure the vehicle during the test shall not be such that the anchorages of the vehicle seats, adult safety belts and any additional anchorages required to secure the child restraint will be strengthened, or such that the normal deformation of the structure will be lessened.
No part of the vehicle shall be present which, by limiting the movement of the test manikin, would reduce the load imposed on the child restraint during the test. The eliminated parts of the structure may be replaced by parts of equivalent strength, provided that they do not hinder the movement of the test manikin.
7.1 .3.2.1 .2 A securing device shall be regarded as satisfactory if it produces no effect on an area that extends over the entire width of the structure and if the vehicle or structure is blocked or fixed in front at a distance of not less than 500 mm from the anchorage of the restraint system. At the rear, the structure shall be secured at a sufficient distance behind the anchorages to ensure that the requirements of 7.1.3.2.1.1 are satisfied.
7.1.3.2.1 .3 The vehicle seat and child restraint shall t)e fitted and shall be placed in a position that has been selected by the test authority to give the most adverse conditions in respect of strength, compatible with installing the test manikin in the vehicle. The position of the vehicle seat back and the child restraint shall be stated in the report. The vehicle seat back, if adjustable for inclination, shall be locked as specified by the manufacturer or, in the absence of any specification, at an actual seat back angle as near as possible to 25 ͦ
7.1.3.2.1.4 Unless the instructions for fitting and use require otherwise, the front seat shall be placed in the most forward position normally used in the case of child restraints that are intended for use in the front seating position, and in the rearmost position normally used in the case of child restraints that are intended for use in the rear seating position.
7.1.3.2.1.5 The deceleration conditions shall satisfy the requirements of 7.1.3.4. The test seat shall be the seat of the actual vehicle.
7.1 .3.2.1 .6 Make the following measurements and inspections:
a) the trolley speed, immediately before impact;
b) the stopping distance;
c) any contact of the test manikin's head (in the case of group 0, not taking the manikin's limbs into account) with the interior of the vehicle body shell;
d) the chest deceleration in three mutually perpendicular directions, except in the case of the newborn test manikin; and
e) any visible signs of penetration of the modelling clay in the abdomen (see 6.1 .4.3). except in the case of the newborn test manikin.
7.1.3.2.1.7 Film the tests at least 500 frames per second.
7.1 .3.2.1.8 After impact, visually inspect the child restraint, without opening the buckle, to determine whether there has been any failure or breakage.
7.1.3.2.2 Rearward facing
7.1.3.2.2.1 For rear impact tests, rotate the vehicle body shell through an angle of 1 80' on the test trolley.
7.1.3.2.2.2 In all other respects, the requirements for frontal impact apply.
7.1.3.3 Test using the complete vehicle
7.1 .3.3.1 The deceleration conditions shall satisfy the requirements of 7.1.3.4.
7.1.3.3.2 For frontal impact tests, use the procedure set out in annex K of this specification.
7.1.3.3.3 For rear impact tests, use the procedure set out in annex L of this specification.
7.1.3.3.4 Make the following measurements and inspections:
a) the speed of the vehicle or the impactor, immediately before impact;
b) any contact of the manikin's head (in the case of group 0, not taking the manikin's limbs into account) with the interior of the vehicle;
c) the chest acceleration in three mutually perpendicular directions, except in the case of the newborn test manikin; and

d) any visible signs of penetration of the modelling clay in the abdomen (see 6.1 .4.3), except in the case of the newborn test manikin.
7.1 .3.3.5 Film the tests at at least 500 frames per second:
7.1.3.3.6 If the front seats are adjustable for inclination, lock the seats as specified by the manufacturer or, in the absence of any specification, at an actual seat back angle as near as possible to 25ͦ. .

7.1 .3.3.7 After impact, visually inspect the child restraint, without opening the buckle, to determine whether there has been any failure or breakage.
7.1.3.4 Conditions for dynamic tests
The conditions for dynamic tests are summarized in table 1.
7.1.3.5 Child restraints that require the use of additional anchorages
7.1.3.5.1 In the case of semi-universal child restraints that require the use of additional anchorages, the frontal impact test, in accordance with 7.1.3.4. shall be carried out as given in 7.1.3.5.2 to 7.1.3.5.5.
7.1.3.5.2 In the case of restraints with short upper attachment straps, for example restraints intended to be attached to the rear parcel shelf, the upper anchorage configuration on the test trolley shall be as given in F.5 of this specification.
7.1.3.5.3 In the case of restraints with long upper attachment straps, for example restraints intended for use where there is no rigid parcel shelf and where the upper anchorage straps are attached to the vehicle floor, the anchorages on the test trolley shall be as given in F.5 of this specification.
7.1.3.5.4 In the case of restraints intended for use in both configurations, the test that uses the anchorage configurations given in 7.1 .3.5.2 and 7.1.3.5.3 shall be carried out, except that, in the case of the test that uses the anchorage configurations given in 7.1 .3.5.3, only the heavier manikin shall be used.
7.1.3.5.5 In the case of rearward-facing restraints the lower anchorage configuration on the test trolley shall be as given in F.S of this specification.
7.1.3.6 Test manikins
7.1.3.6.1 General
The test manikins used to test the child restraint shall comply with annex G of this specification.
7.1.3.6.2 installation of the test manikin
7.1.3.6.2.1 Frontal impact with forward-facing restraints and rear Impact with rearward-facing restraints
Place the test manikin so that there is a gap between the front of the manikin and the restraint.
7.1.3.6.2.2 Forward Impact with rearward-facing restraints

Place the test manikin so that there is a gap between the rear of the manikin and the restraint.
7.1.3.6.2.3 Carry-cots
Place the test manikin in a straight horizontal position as close as possible to the centre-line of the carry-cot.
7.1.3.6.2.4 Child restraint with a separately anchored chair
7.1.3.6.2.4.1 Place the test manikin in the vehicle seat or test seat. Place a board 25 mm thick and 60 mm wide between the back of the test manikin and the backrest of the vehicle seat or test seat. The board should follow as closely as possible the curvature of the chair and its lower end should be at the height of the manikin's hip joint Adjust the belt in accordance with the manufacturer's Instructions, but to a tension of 250 N ± 25 N greater than the adjusting force» with the deflection angle of the strap at the adjuster measuring 45ͦ ± 5̊ , or alternatively, at the angle prescribed by the manufacturer. Remove the board.

7.1.3.6.2.4.2 The longitudinal plane that passes through the centre-line of the manikin shall be set midway between the two lower belt anchorages; however, note shall also be taken of 7.1.3.2.1.3. In the case of booster cushions to be tested with the test manikin that represents a 1 0-year-old child, the longitudinal plane that passes through the centre-line of the manikin shall be positioned to the left or right of the point midway between the two lower belt anchorages.
7.1 .3.6.2.4.3 In the case of restraints that require the use of a standard belt, the shoulder strap may be positioned on the test manikin before the dynamic test by means of a lightweight masking tape of sufficient width and length, in the case of rearward-facing devices, the head of the manikin may be held against the backrest of the restraint system by means of a lightweight masking tape of sufficient width and length.

7.1.3.7 Category of test manikin
7.1 .3,7.1 The following categories of test manikin shall be used when testing restraints of the various mass groups:
a) group restraint: test using a newborn manikin and a manikin of mass 9 kg;
b) group 0+ restraint: test using a newborn manikin and a manikin of mass 11 kg;
c) group I restraint: test using manikins of mass 9 kg and 15 kg respectively;
d) group It restraint: test using manikins of mass 15 kg and 22 kg respectively; and
e) group Hi restraint: test using manikins of mass 22 kg and 32 kg respectively.
7.1.3.7.2 If the child restraint system is suitable for two or more mass groups, the tests shall be carried out while using the lightest and heaviest manikins specified above for all the groups concerned. However, if the configuration of the restraint alters considerably from one group to the next, for instance when the configuration of the harness or the length of the harness is changed, the test authority may. if it deems it advisable, add a test with a manikin of intermediate mass.
7.1 .3.7.3 If the child restraint system is designed for two or more children, one test shall be carried out with the heaviest manikins occupying all the seat positions. A second test shall be carried out with the lightest and the heaviest manikins specified above. The test authority may, if it deems it advisable, add a third test with any combination of manikins or empty seat positions.
7.2 Tests of individual components
7.2.1 Buckle
7.2.1 .1 Opening test under load
7.2.1.1.1 Use a child restraint that has already been subjected to the dynamic test specified in 7.1,3 for this test
7.2.1.1.2 Remove the child restraint from the test trolley or from the vehicle, without opening the buckle. Apply a tension of 200 N ± 2 N to the buckle, if the buckle is attached to a rigid part, apply a force that reproduces the angle formed between the buckle and that rigid part during the dynamic test.
7.2.1.1.3 Apply a load at a speed of 400 mm/min ± 20 mm/min to the geometric centre of the buckle-release button, along a fixed axis running parallel to the initial direction of motion of the button. The geometric centre applies to that part of the surface of the buckle to which the release pressure is to be applied. Secure the buckle against a rigid support during the application of the opening force.
7.2.1 .1 .4 Apply the buckle opening force, using a dynamometer or similar device in the manner and direction of normal use. The contact end shall be a polished metal hemisphere of radius 2,5 mm ±0,1 mm.
7.2.1.1.5 Measure the buckle opening force and note any failure.
7.2.1 .2 Opening test under zero load
7.2.1.2.1 Mount and position under a zero load condition a buckle assembly that has not previously been subjected to a load.
7.2.1.2.2 Use the method of measuring the buckle opening force as given in 7.2.1.13 and 7.2.1.1.4.
7.2.1.2.3 Measure the buckle opening force.
7.2.1.3 Strength test
7.2.1.3.1 Use two samples for the strength test. All adjusters, except adjusters mounted direct on a child restraint, are included in the test
7.2.1.3.2 Annex M shows a typical device for a buckle strength test The buckle is placed on the upper round plate A within the relief. All the adjacent straps have a length of at least 250 mm and are arranged hanging down from the upper plate respective to their position at the buckle. The free strap ends are then wound round the lower round plate B until they come out at the plate's inner opening. All the straps shall be vertical between A and B. The round clamping plate C is then clamped lightly against the lower face of B, still allowing a certain strap movement between them. With a small force at the tensile machine, the straps are tensioned and pulled between B and C until all the straps are loaded respective to their arrangement The buckle stays free from plate A or any parts at A during this operation and the test itself. B and C are then clamped firmly together and the tensile force is increased at a traverse speed of 100 mm/min ± 20 mm/min until the required values are reached.
7.2.2 Adjusting device
7.2.2.1 Ease of adjustment
7.2.2.1.1 When testing a manual adjusting device, steadily draw the strap through the adjusting device, having regard for the normal conditions of use, at a rate of approximately 1 00 mm/s. After the first 25 mm of strap movement, measure, to the nearest newton, the maximum force.
7.2.2.1.2 Carry out the test in both directions of strap travel through the device, white the strap is subjected ten times to the full travel cycle, before making the measurement.
7.2.2.2 Microslip test (see annex N, figure N.3)
7.2.2.2.1 Keep the components and adjusting devices to be subjected to the microslip test in an atmosphere at a temperature of 20 ̊ C ± 5 ͦ C and a relative humidity of (65 ± 5) % for a minimum of 24 h before testing. Carry out the test at a temperature of between 15 **C and 30 °C.
7.2.2.2.2 Arrange the free end of the strap in the configuration in which it is when the adjusting device is in use in the vehicle. The free end of the strap shall not be attached to any other part.
7 J2.2.2.3 Place the adjusting device on a vertical piece of strap, one end of which bears a 50 N load (guided so that the load is prevented from swinging and the strap from twisting). Mount the free end of the strap vertically upwards or downwards from the adjusting device, as it is in the vehicle. Pass the other end over a deflector roller, with its horizontal axis parallel to the plane of the section of strap that
supports the load, and the section that passes over the roller being horizontal.
7.2.2.2.4 Arrange the adjusting device under test so that its centre, in the highest position to which it can be raised, is 300 mm ± 20 mm from a support table and the load of 50 N Is 1 00 mm 1 20 mm from the said support table.

7.2.2.2.5 Complete 20 pretest cycles and then complete 1 000 cycles at a frequency of 0.5 cycles per second, the total amplitude being 300 mm ± 20 mm, eras specified in 7.2.4.2.6.2. Apply the 50 N load only during the time that corresponds to a shift of 100 mm ± 20 mm for each half period. Measure the microslip from the position at the end of the 20 pretest cycles.
7.2.3 Retractor
7.2.3.1 Retracting force
Measure the retracting forces with the child restraint fitted with a test manikin as for the dynamic test given in 7. 1.3. Measure the strap tension at the point of contact with (but just dear of) the manikin, while the strap is retracted at an approximate rate of 0,6 m/min.
7.2.3.2 Durability of the retractor mechanism
Withdraw the strap and allow it to retract for the required number of cycles, at a rate of not more than 30 cycles per minute. In the case of emergency-locking retractors, introduce, at each fifth cycle, a jolt to lock the retractor The jolts occur in equal numbers at each of live different extractions, namely at 90 %, 80 %, 75 %, 70 % and 65 % of the total length of the strap on the retractor. However, where the length of the strap exceeds 900 mm, the above percentages are related to the final 900 mm of strap that can be withdrawn from the retractor.
7.2.3.3 Locking of the emergency-locking retractors
7.2.3.3.1 Test the retractor once for locking, when the strap has been unwound to its full length minus 300 mm ±3 mm.
7.2.3.3.2 In the case of a retractor that is actuated by strap movement, the extraction shall be in the direction in which it normally occurs when the retractor is installed In a vehicle.
7.2.3.3.3 When retractors are being tested for sensitivity to vehicle acceleration, they shall be tested at the above extraction length in both directions along two mutually perpendicular axes that are horizontal if the retractors are to be installed in a vehicle as specified by the child restraint manufacturer. When this position is not specified, the test authority shall consult the child restraint manufacturer. One of these test directions shall be selected by the test authority to give the most
adverse conditions with respect to actuation of the locking mechanism,
7.2.3.3.4 The design of the apparatus used shall be such that the required acceleration is given at an average rate of increase of acceleration of at least 245 m/s^2.
7.2.3.3.5 For testing for compliance with the requirements of 6.2.3.2.1.3 and 6.2.3.2.1 .4, the retractor shall be mounted on a horizontal table and the table tilted at a speed not exceeding 2ͦ^ /s until locking has occurred. The test shall be repeated with tilting In other directions, to ensure that the requirements are satisfied.
7.2.3.4 Corrosion test

Carry out the corrosion test as described in 7.1,1.
7.2.3.5 Dust-resistance test
7.2.3.5.1 Position the retractor in a test chamber, as shown in annex Q of this specification. Mount the retractor in an orientation similar to that in which it is mounted in the vehicle. The test chamber shall contain dust as specified in 7.2.3.5,2. Extract from the retractor, and keep extracted, a length of 550 mm of the strap, except that it shall be subjected to ten complete cycles of retraction and withdrawal within 1 min or 2 min after each agitation of the dust For a period of 5 h, agitate the dust every 20 min for 5 s by compressed air that is free of oil and moisture, is at a gauge pressure of 550 kPa ± 50 kPa and enters through an orifice of diameter 1 ,5 mm ± 0,1 mm.
7.2.3.5.2 The dust used in the test described in 7.2.3.5.1 shall consist of about 1 kg of dry quartz with the particle size distribution shall be as follows:
a) passing through 150µm aperture, 104µm wire diameter 99 % to 100 %;
b) passing through 105µm aperture, 64µm wire diameter: 76 % to 86 %; and
c) passing through 75µm aperture, 52µm wire diameter: 60 % to 70 %.
7.2.4 Straps
7.2.4.1 Strap strength test
7.2.4.1-1 Carry out each test on two new samples of strap, conditioned as specified in 6.2.4.
7.2.4.1 .2 Grip each strap between the clamps of a tensile-strength testing machine. The clamps shall be so designed as to avoid breakage of the strap at or near them. The speed of traverse shall be about 1 00 mm/min. The free length of the specimen between the clamps of the machine at the start of the test shall be 200 mm ± 40 mm.
7.2.4.1.3 Increase the tension until the strap breaks and note the breaking load.
7.2.4.1 .4 If the strap slips or breaks at or within 1 mm of either of the clamps, deem the test to be invalid and carry out a new test out on another specimen.
7.2.4.2 Conditioning
7.2.4.2.1 Room conditioning
Keep the strap for 24 h ± 1 h in an atmosphere that has a temperature of 23ͦ C ± 5 ͦ C and a relative humidity of (50 ±10) %. If the test is not carried out immediately after conditioning, place the specimen in a hermetically closed receptacle until the test begins. Determine the breaking load within 5 min after removal of the strap from the conditioning atmosphere or from the receptacle.
7.2.4.2.2 Light conditioning
7.2.4.2.2.1 Use the apparatus described in SABS ISO 105-B02, Textiles^- Tests for colour fastness -Part B02: Colour fastness to artificial light « Xenon arc fading lamp test and a test strap of length at least 1,3 m.
Expose a central portion of the strap, of length at least 200 mm, to light for the time necessary to produce fading of standard blue dye No. 7 to a contrast equal to grade No, 4 on the grey scale according to SABS ISO 105-AQ2, Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour
7.2.4.2.2.2 After exposure, keep the strap for a minimum of 24 h in an atmosphere that has a temperature of 23 ͦ C ± 5 ̊ C and a relative humidity of (50 ± 10) %. Determine the breaking load within 6 min after removal of the strap from the conditioning apparatus.
7.2.4.2.3 Cold conditioning
7.2.4.2.3.1 Keep the strap for a minimum of 24 h in an atmosphere at a temperature of 23 ̊ C ± 5 °C and a relative humidity of (50 ± 10) %,
7.2.4.2.3.2 Then keep the strap for 90 min ± 5 min on a plane surface in a low-temperature chamber In which the air temperature is -30 *C ± 5 'C, Fold the strap and load the fold with a mass piece of mass 2 kg ±0,2 kg that has previously been cooled to -30 'C ± 5 'C. When the strap has been kept under load for 30. min ± 5 min in the same low-temperature chamber, remove the mass piece and measure the breaking load within 5 min after removal of the strap from the low-temperature chamber.
7.2.4.2.4 Heat conditioning
7.2.4.2.4.1 Keep the strap for 1 80 min ± 1 min in a heating-cabinet atmosphere that has a temperature of 60 ̊'C ± 5 ̊ C and a relative humidity of (65 ± 5) %.
7.2.4.2.4.2 Determine the breaking load within 5 min after removal of the strap from the heating cabinet.
7.2.4.2.5 Exposure to water
7.2.4.2.5.1 Keep the strap fully immersed for 1 80 min ±10 min in distilled water, at a temperature of 20 ̊ 0 ± 5 ̊ C, to which a trace of wetting agent has been added. Any wetting agent suitable for the fibre under test may be used.
7.2-4.2.5-2 The breaking load shall be determined within 10 min after removal of the strap from the water.
7.2.4.2-6 Abrasion conditioning
7.2.4.2.6.1 Keep the components or devices to be subjected to the abrasion test in an atmosphere at a temperature of 23 X ± 5 ̊ C and a relative humidity of (50 ± 10) % for a minimum of 24 h before testing. Keep the room temperature during testing between 15 °C and 30 °C.
7.2.4.2-6.2 Table 2 sets out the general conditions for each type of abrasion conditioning.
7.2.4.2.6.3 Where there is insufficient strap to test over 300 mm of shift, the test may be applied over a shorter length, subject to a minimum of 100 mm.
7.2.4.2 J Particular test conditions
7.2.4.2.7.1 Type 1 (in cases where the strap slides through the quick adjusting device)
Apply the 10 N load vertically and permanently on one of the straps. Attach the other strap, horizontally, to a device that is capable of giving the strap a back-and-forth motion. So place the adjusting device that the horizontal strap remains under tension (see figure N.I of annex N).

7.2.5.2.7.2 Type 2 (in cases where the strap changes direction in passing through a rigid part)
During this test, the angles of both straps shall be as shown In figure N.2 of annex N. The 5 N load shall be permanently applied. In cases where the strap changes direction more than once in passing through a rigid part, the load of 5 N may be so increased as to achieve the prescribed 300 mm of strap movement through that rigid part.
7.2.5 Lock-off devices
7.2.5.1 Class A devices.
Set up the child restraint with the largest manikin for which the child restraint is intended, as shown in figure 5. Use the webbing as specified in annex B of this specification. Fully apply the lock-off device and make a mark on the belt where the belt enters the lock-off device. Attach the force gauges to the belt via a D ring, and apply a force equal to twice (± 5 %) the mass of the heaviest dummy of group I
for at least 1 s. Apply the force for a further nine times. Make a further mark on the belt where it enters the lock-off device and measure the distance between the two marks. During this test, the retractor shall be unlocked.
7.2.5.2 Class B devices
Firmly secure the child restraint and pass webbing, as specified in annex 8 of this specification, through the lock-off device and frame following the routing described in the manufacturer's instructions. Pass the belt through the testing equipment, as shown in figure 6, and attach it to a mass of 5,25 kg ± 0.05 kg. Ensure that there is 650 mm ± 40 mm of free webbing between the mass and the point where the webbing leaves the frame. Fully apply the lock-off device and make a mark on the belt where it enters the lock-off device. Raise and then release the mass so that It falls freely over a distance of 25 mm ± 1 mm. Repeat this 1 00 times ± 2 times at a frequency of 60 cycles 1 2 cycles per minute, to simulate the jerking action of a child restraint in a car. Make a further mark on the belt where it enters the lock-off device and measure the distance between the two marks. The lock-off device shall cover the full width of the webbing in the installed condition with a 15 kg dummy installed. Conduct the test using the same webbing angles as those formed in normal use and with the free end of the lap belt portion fixed. For the duration of the test the child restraint system is firmly attached to the test bench used in the overturning or dynamic test. The loading strap can be attached to the simulated buckle.
7.2,7 Conditioning procedure for adjusters mounted direct on a child restraint
Install the largest dummy for which the restraint is intended, as if for the dynamic test, including the standard slack as specified in 7.1 .3.6. Mark a reference line on the webbing where the free end of the webbing enters the adjusting device.
Remove the dummy and place the restraint in the conditioning rig shown in figure P. 1 of annex P.

Cycle the webbing for a total distance of not less than 150 mm through the adjusting device. This movement shall be such that at least 100 mm of webbing on the side of the reference line towards the free end of the webbing and the remainder of the moving distance (approx. 50 mm) on the integral harness side of the reference line moves through the adjusting device.
If the length of webbing from the reference line to the free end of the webbing is insufficient for the movement described above, the 1 50 mm of movement through the adjusting device shall be from the fully extended harness position. The frequency of cycling shall be 10 ± 1 cycles/minute, with a velocity on S of 1 50 ± 1 mm/sec.
7.3.1 High-speed films and videos
7.3.1 Determine the behaviour of the test manikin and its displacement by means of a high-speed camera.
7.3.2 Firmly mount a calibration screen on the trolley or in the vehicle structure in such a way that the displacement of the manikin can be determined. 

Reference of the measure

Regulations 6.1.4.1 to 6.1.4.3
Regulation 7 

Measure also domestic

Yes 

Products affected by the measure.

Description

Child restraint 

Countries/Regions affected by the measure.

Description

All countries