This SAE Recommended Practice describes the equipment and procedure for determining the truck cab interior sound level over the upper half of the engine speed range. This practice applies to motor trucks and truck-tractors and does not include construction and industrial machinery.
SAE J336-2011 Referenced Document
ISO 5128:1980 Acoustics; Measurement of noise inside motor vehicles
SAE J1349-2008 Engine Power Test Code—Spark Ignition and Compression Ignition—Net Power Rating
SAE J184-1998 (R) Qualifying a Sound Data Acquisition System
SAE J336-2011 history
2011SAE J336-2011 Sound Level for Truck Cab Interior
2001SAE J336-2001 Sound Level for Truck Cab Interior
1988SAE J336-1988 Sound Level for Truck Cab Interior
1987SAE J336-1987 SOUND LEVEL FOR TRUCK CAB INTERIOR