Common use of Equivalent test method Clause in Contracts

Equivalent test method. If a test method other than that given in paragraphs 2 or 3 of this annex is used, its equivalence must be demonstrated. Annex 7 – Appendix 1 ENDURANCE-TEST PROGRAMME Load index Speed symbol Test-drum speed [min-1] Load placed on the wheel as a percentage of the load corresponding to the load index Radial-ply Diagonal (bias ply) and bias belted 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 100 125 150 175 100 125 150 175 L M N P 200 250 275 300 175 200 -- 70% 88% 106% 114% 114% 114% 4 h. 6 h. 75% 75% 75% 97% 97% 97% (1) Special-use" tyres (see paragraph 2.3.2. of this Regulation) shall be tested at a speed equal to 85 per cent of the speed prescribed for equivalent normal tyres. (2) Tyres having a load capacity index equal to or greater than 121, a speed category symbol "N" or "P" and the additional markings "C" or "LT" included in the tyre size designation (referred to in paragraph 3.2.13. of this Regulation), shall be tested with the same programme as specified in the above table for tyres having a load capacity index equal to or less than 121.