ECE/TRANS/WP.29/2009/...

2.99. "Void to fill ratio" means the ratio between the area of voids in a reference surface and the area of this reference surface calculated from the mould drawing; 2.100. "Wet grip index ("G")" means the ratio between the performance of the candidate tyre and the performance of the standard reference test tyre. 3. Requirements . 3.1. Plant ... ................
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