Document ID: chunk:federal_register_of_legislation:F2018L01517:reg:200:p9
Version: federal_register_of_legislation:F2018L01517
Segment Type: reg
Provision Reference: reg 200 (pt 9/10)
Character Range: 101906–110704

and with the additional marking "C", or "LT", referred to in paragraph 3.1.13. of this Regulation.
3.2. Load placed on the wheel as a percentage of the load corresponding to the load index:
3.2.1. 90 per cent when tested on a test drum 1.70 m  1 per cent in diameter;
3.2.2. 92 per cent when tested on a test drum 2.0 m  1 per cent in diameter.
3.3. Initial test speed: speed corresponding to the speed category symbol less 20 km/h;
3.3.1. Time to reach the initial test speed 10 min.
3.3.2. Duration of the first step = 10 min.
3.4. Second test speed: speed corresponding to the speed category symbol less 10 km/h;
3.4.1. Duration of the second step = 10 min.
3.5. Final test speed: speed corresponding to the speed category symbol:
3.5.1. Duration of the final step = 30 min.
3.6. Total test duration: 1 h.
4. Equivalent test methods
  If a method other than that described in paragraph 2. above is used, its equivalence must be demonstrated.

Annex 7 - Appendix 1
Endurance-test programme
                                                                                                                                                                                                                                                                                    Tyre speed
Load index                                                                                                                                                                                                                                                                          category symbol       Test-drum speed  Load placed on the wheel as a percentage of the load corresponding to the load index
Radial-ply                                                                                                                                                                                                                                                                          Diagonal (bias-ply)
km.h-1                                                                                                                                                                                                                                                                              km.h-1               7 h.              16 h.                                                                                 24 h.
122 or more                                                                                                                                                                                                                                                                         F                     32               32
                                                                                                                                                                                                                                                                                    G                     40               32
                                                                                                                                                                                                                                                                                    J                     48               40
                                                                                                                                                                                                                                                                                    K                     56               48
                                                                                                                                                                                                                                                                                    L                     64               -
                                                                                                                                                                                                                                                                                    M                     72               -                                                                                      66 %     84 %        101 %
121 or less                                                                                                                                                                                                                                                                         F                     32               32
                                                                                                                                                                                                                                                                                    G                     40               40
                                                                                                                                                                                                                                                                                    J                     48               48
                                                                                                                                                                                                                                                                                    K                     56               56
                                                                                                                                                                                                                                                                                    L                     64               56                                                                                       70 %      88 %     106 %
                                                                                                                                                                                                                                                                                                                                                                                                                     4 h.       6 h.
                                                                                                                                                                                                                                                                                    M                     80               64                                                                                    75 %      97 %        114 %
                                                                                                                                                                                                                                                                                    N                     88               -                                                                                     75 %      97 %        114 %
                                                                                                                                                                                                                                                                                    P                     96               -                                                                                     75 %      97 %        114 %
Notes:
(1)  "Special-use" tyres (see paragraph 2.1.3. of this regulation) should be tested at a speed equal to 85 per cent of the speed prescribed for equivalent normal tyres.
(2)  Tyres with load index 122 or more, speed category symbols N or P and the additional marking "LT", or "C", referred to in paragraph 3.1.13. of this regulation, shall be tested with the same programme as specified in the above table for tyres with load index 121 or less.

Annex 7 - Appendix 2
Relation between the pressure index and the units of pressure
Pressure
Index ("PSI")   Bar   kPa
 20             1.4   140
 25             1.7   170
 30             2.1   210
 35             2.4   240
 40             2.8   280
 45             3.1   310
 50             3.4   340
 55             3.8   380
 60             4.1   410
 65             4.5   450
 70             4.8   480
 75             5.2   520
 80             5.5   550
 85             5.9   590
 90             6.2   620
 95             6.6   660