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This SAE Recommended Practice establishes the procedure for measuring the maximum exterior sound level for pleasure motorboats under 65 ft (19.8 m) in length, and describes the instrumentation, test site, and boat operation for determining the sound level.

This SAE Recommended Practice establishes the procedure for measuring the maximum exterior sound level for pleasure motorboats under 20 m (65 ft) in length, and describes the instrumentation, test site, and boat operation, for determining the sound level.

This SAE Recommended Practice establishes the procedure for measuring the maximum exterior sound level for pleasure motorboats under 20 m (65 ft) in length, and describes the instrumentation, test site, and boat operation, for determining the sound level.

This SAE Recommended Practice establishes the procedure for measuring the maximum exterior sound level of pleasure motorboats while being operated under a wide open throttle condition or a maximum speed of 70 km/h (43.5 mph). It is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances.

This SAE Recommended Practice establishes the procedure for assessing operator sound level exposure for pleasure motorboats under 20 m (65 ft) in length when operated under typical conditions, an describes the instrumentation, test site, and boat operation for making valid measurements.

This SAE Standard establishes the procedure for determining the operator duty cycle sound pressure level Lodc to which operators of powered recreational craft up to 24 m in length are exposed during typical operation as determined by marine engine duty cycle studies. This document describes the instrumentation, the required calibration procedures, the test site, the specifications for “standard craft”, the craft operating conditions, microphone positioning, test procedure, engine speeds for each of the Duty Cycle modes and the formula and table for calculating the Duty Cycle operator ear sound pressure level. This document is subject to change to keep pace with technical advances as well as other international standards and practices. Changes in this Revision: The sound pressure level measurements performed while applying this document are based on the Five-Mode Marine Engine Duty Cycle instead of a single engine speed.

This SAE Recommended Practice establishes the procedure for measuring the sound level of recreational motorboats at a position on the shore under conditions other than stationary mode operation. It is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances.

This SAE Recommended Practice establishes the procedure for determining if recreational motorboats have effective exhaust muffling means when operating in the stationary mode. It is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances.