Smithers certified to perform UNECE R117 rolling resistance testing
United Nations Economic Commission for Europe (UNECE) Regulation No. 117 (R11) provides requirements for maximum tire rolling sound emissions, minimum wet grip performance, maximum rolling resistance, and conformity of production (CoP) for tires imported into the European Union. UNECE R117 testing is appropriate for C1 (passenger car) and C2 (light truck) tires.
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