Document ID: chunk:federal_register_of_legislation:F2025C00107:front:0:p27
Version: federal_register_of_legislation:F2025C00107
Segment Type: other
Provision Reference: 
Character Range: 77715–83031

the purposes of certification to this national standard, to meet the requirements of Annex 21 of UN R13/11, if compliance can be demonstrated during a Conformity of Production assessment.
     2.                               The requirements of Annex 21 of UN R13/11 are not applicable for category ME vehicles with a 'GVM' exceeding 12 tonnes and category NC 'Prime Movers', not otherwise deemed according to clause 3.9 above to comply with this standard.  These vehicles must instead meet the applicable requirements of clauses 5.1.8 and 5.1.9 of this standard.
     3.                               An additional hand 'Control' may be fitted to enable the 'Service Brake System' of a towed trailer, to be operated independently of the 'Service Brake System' and/or 'Secondary Brake System' of the towing vehicle.
     4.                               On vehicles equipped to tow a trailer with a compressed-air braking system, the parking braking system of the towing vehicle need not be capable of holding the combination of vehicles stationary on a 12 per cent up or down gradient, provided the operation of the parking brake system causes the pressure in the 'SUPPLY LINE 35/…' to drop below 35 kPa – as is required by the reference to clause 5.3.5 in clause 9.2(b) above.

TABLE 1
       STANDARD TESTS AND PROCEDURES
Item No.*     Tests and Procedures                            Vehicle Category  Initial Speed (km/h)  Minimum 'Average Deceleration' (m/s2)  Vehicle Mass  Transmission Condition(s)   Maximum 'Control' Force (N)
1.            Pre-test Instrumentation Check                  All               40 Max.               See Text                               __            __                         __
2.            Service Brake Burnishing Procedure (optional)   All               See Text              See Text                               __            __                         __
3.            Service Brake Lightly Laden Effectiveness Test  MB,MC,MD,ME       100                   4.19                                   L             N and/or †                 685
NA,NB,NC,LEG  100                                             3.78
4.            Lightly Laden Secondary Brake Test              MB,MC,MD,ME       60                    2.10                                   L             N and/or †                 590 (hand)
                                                                                                                                                                                      685 (foot)
NA,LEG        70                                              2.00
NB            50                                              1.85
NC            40                                              1.80
5.            Lightly Laden Partial Failure Test              MB,MC,MD,ME       60                    2.10                                   L             N and/or †                 685
NA,LEG        70                                              2.00
NB            50                                              1.85
NC            40                                              1.80
6.            Service Brake Laden Effectiveness Test          MB,MC,MD,ME       100                   4.19                                   M             N and/or †                 685
NA,NB,NC,LEG  100                                             3.78
7.            Laden Secondary Brake Test                      MB,MC,MD,ME       60                    2.10                                   M             N and/or †                 590 (hand)
                                                                                                                                                                                      685 (foot)
NA,LEG        70                                              2.00
NB            50                                              1.85
NC            40                                              1.80
8.            Laden Partial Failure Test                      MB,MC,MD,ME       60                    2.10                                   M             N and/or †                 See Text
NA,LEG        70                                              2.00
NB            50                                              1.85
NC            40                                              1.80
9.            Service Brake Fade                              All               See Text              See Text                               M             D                          See Text
10.           Service Brake Fade Effectiveness Check          MB,MC,MD,ME       60                    3.02                                   M             N and/or †                 685
NA,LEG        70                                              2.84
NB            50                                              2.63
NC            40                                              2.47

Item No.*  Tests and Procedures               Vehicle Category  Initial Speed (km/h)  Minimum 'Average Deceleration' (m/s2)  Vehicle Mass  Transmission Condition(s)  Maximum 'Control' Force (N)
11.        Parking Brake Test                        All               __                    __                                     M             N                          590