1976-02-01

Round Robin Testing with SAE J57a 762013

Eight sets of truck tires were coast-by tested for sound levels at five different testing facilities in a round robin sponsored by the RMA. SAE Recommended Practice J57a “Sound Level of Highway Truck Tires” was used to obtain the measurements. Variations in sound measurements for the individual tire sets at each test facility as well as variations from facility to facility are discussed. Also discussed are differences between fast meter response and slow meter response measurements.

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