Shifts in tyre sound levels between 2007 and 2013
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Review of research program that quantified differences in tire noise levels between the tire population on sale before and after revision of tire regulation in 2009 (Regulation (EC) No 1222/2009).

Reference Number: GRB-60-12
Origin: M+P and Netherlands
Date: 4 September 2014
Related Documents:
GRB-61-18 | ETRTO comments on GRB-60-08, GRB-60-12, GRB-60-14-Rev.1 and GRB-61-03
GRB-62-11 | Proposal for amendments to the 02 series of amendments to Regulation 117
GRB-62-17 | Comments on tyre noise performance and proposal for higher stringecy