Equivalent test methods. If a test method other than those specified in paragraphs 6.2., 6.3., 6.4. above and Annex 6 is used, its equivalence shall be proved.
Equivalent test methods. If a method other than that described above is used, its equivalence must be demonstrated.
Equivalent test methods. If a test method other than those specified in paragraphs 6.2., 6.3.,
Equivalent test methods. If a method other than that described in paragraph 2. above is used, its equivalence must be demonstrated. Endurance-test programme Load index Tyre speed category symbol Test-drum speed Load placed on the wheel as a percentage of the load corresponding to the load index Radial-ply km.h-1 Diagonal (bias-ply) km.h-1 7 h. 16 h. 24 h. 122 or more F G J K L M 32 40 48 56 64 72 32 32 40 48 - - 66 % 84 % 101 % 121 or less F G J K 32 40 48 56 32 40 48 56 L M N P 64 80 88 96 56 64 - - 70 % 4 h. 75 % 75 % 75 % 88 % 6 h. 97 % 97 % 97 % 106 % 114 % 114 % 114 %
(1) Special-use" tyres (see paragraph 2.1. (c) 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 3.1.14. of this Regulation, shall be tested with the same programme as specified in the above table for tyres with load index 121 or less. 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 6.6 660 100 6.9 690 105 7.2 720 110 7.6 760 115 7.9 790 120 8.3 830 125 8.6 860 130 9.0 900 135 9.3 930 140 9.7 970 145 10.0 1 000 150 10.3 1 030 ... ... ... (See paras. 2.30. and 2.32.)
Equivalent test methods. If a method other than that described above is used, its equivalence must be demonstrated.
1. Scope and range of application
1.1. This test procedure is applicable for new tyres corresponding to the characteristics specified in paragraph 3.4. below.
1.2. It serves the purpose to assess the suitability of the tyre for the claimed performances.
2. Preparing the tyre
2.1. Mount new tyres on the test rim specified by the manufacturer pursuant to paragraph 4.1.10. of this Regulation.
Equivalent test methods. If a method other than that described in paragraph 2. above is used, its equivalence must be demonstrated. 39 Annex 7 - Appendix 1 Endurance-test programme Load index Tyre speed category symbol Test-drum speed Load placed on the wheel as a percentage of the load corresponding to the load index Radial-ply km.h-1 Diagonal (bias-ply) km.h-1 7 h. 16 h. 24 h. 122 or more F G J K L M 32 40 48 56 64 72 32 32 40 48 - - 66 % 84 % 101 % 121 or less F G J K 32 40 48 56 32 40 48 56 L M N P 64 80 88 96 56 64 - - 70 % 4 h. 75 % 75 % 75 % 88 % 6 h. 97 % 97 % 97 % 106 % 114 % 114 % 114 % Notes:
(1) Special-use" tyres (see paragraph 2.1. (c) 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 3.1.14. of this Regulation, shall be tested with the same programme as specified in the above table for tyres with load index 121 or less. 40 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 6.6 660 100 6.9 690 105 7.2 720 110 7.6 760 115 7.9 790 120 8.3 830 125 8.6 860 130 9.0 900 135 9.3 930 140 9.7 970 145 10.0 1 000 150 10.3 1 030 ... ... ... Annex 8 Variation of load capacity with speed commercial vehicles tyres - Radial and diagonal (See paras. 2.30. and 2.32.) Variation of load capacity (per cent)
Equivalent test methods. 3.1. Equivalent test methods are permitted provided that the conditions referred to in this Regulation can be observed either entirely by means of the substitute test or by calculation from the results of the substitute test.
3.2. If a method other than that described in paragraph 2. above is used its equivalence must be demonstrated.
1. PURPOSE AND SCOPE
1.1. The purpose of the test is to simulate the conditions of rear-end collision by another vehicle in motion.
Equivalent test methods. 3.1. Equivalent test methods are permitted provided that the conditions referred to in this Regulation can be observed either entirely by means of the substitute test or by calculation from the results of the substitute test.
3.2. If a method other than that described in paragraph 2. above is used, its equivalence must be demonstrated. TESTING OF FUEL TANKS MADE OF A PLASTIC MATERIAL
1. COLLISION RESISTANCE
1.1. The tank must be filled to its capacity with a water-glycol mixture or with another liquid having a low freezing point, which does not change the properties of the tank material, and must then be subjected to a perforation test.
1.2. During this test the tank temperature must be 233K " 2K (- 40 °C " 2 °C).
1.3. A pendulum collision testing fixture must be used for the test. The collision body must be of steel and have the shape of a pyramid with equilateral-triangle faces and a square base, the summit and the edges being rounded to a radius of 3 mm. The centre of percussion of the pendulum must coincide with the centre of gravity of the pyramid; its distance from the axis of rotation of the pendulum must be 1 m. The total mass of the pendulum must be 15 kg. The energy of the pendulum at the moment of collision must be not less than 30 Nm and as close to that value as possible.
1.4. The tests must be made on the points of the tank which are regarded as vulnerable to frontal or rear collisions. The points regarded as vulnerable are those which are most exposed or weakest having regard to the shape of the tank or the way in which it is installed on the vehicle. The points selected by the laboratories must be indicated in the test report.
1.5. During the test, the tank must be held in position by the fittings on the side or sides opposite the side of collision. No leak must result from the test.
1.6. At the choice of the manufacturer, all the impact tests may be carried out on one tank or each may be carried out on a different tank.
Equivalent test methods. 4.1. Other equivalent test methods are permitted provided that the conditions referred to in this Regulation can be observed and that their equivalence can be demonstrated.
Equivalent test methods. If a method other than that described in paragraph 2. above is used, its equivalence must be demonstrated. ENDURANCE-TEST PROGRAMME Load index Tyre speed category Test-drum speed Load placed on the wheel as a percentage of the load corresponding to the load index Radial-ply min-1 Diagonal (bias-ply) min-1 7 h. 16 h. 24 h. 122 or more F G J K L M 100 125 150 175 200 225 100 100 125 150 - - 66% 84% 101% 121 or less F G J K 100 125 150 175 100 125 150 000 X X X X 000 000 275 300 175 200 - - 70% 4 h. 75% 75% 75% 88% 6 h. 97% 97% 97% 106% 114% 114% 114%
(1) Special-use" tyres (see paragraph 2.1.3. of the 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 121 or more, speed categories 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. ____________ RELATION BETWEEN THE PRESSURE INDEX AND THE UNITS OF PRESSURE Pressure Index ("PSI") Bar kPa ___________ VARIATION OF LOAD CAPACITY WITH SPEED COMMERCIAL VEHICLES TYRES RADIAL AND DIAGONAL (See paras. 2.27. and 2.29.) Speed (km/h) All load indices Load indices 122 1/ Load indices 121 1/ Speed category symbol Speed category symbol Speed category symbol F G J K L M L M N P 2/ ____________ 1/ The load capacity indices refer to a single operation. 2/ Load variations are not allowed for speeds above 160 km/h. For speed category symbols "Q" and above the speed category corresponding to the speed category symbol (see paragraph 2.28.2.) specifies the maximum speed permitted for the tyre. / Former title of the Agreement: Agreement Concerning the Adoption of Uniform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle Equipment and Parts, done at Geneva on 20 March 1958. **/ For New Zealand, the date of entry into force is 21 April 2002. / As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3) (document TRANS/WP.29/78/Rev.1).
1/ See explanatory figure.
2/ For consistency, the symbols and speeds shown in this table are the same as those for passenger cars (as in Regulation No. 30). They should not be taken to indicate the speeds at which commercial vehicles fitted with such tyres may be operated on the roads.
3/ Before 1 January 2000, the date of manufacture may be indicated by a group of three digits, the first two showing t...
