This SAE Standard established the procedure for determining the operator duty cycly sound pressure level Ldoddc to which operators of powered recreational craft up to 24 m in length are exposed udring typical oepration as determine by marine engine duty cycle studies. This document describes the instrumentation, the required calibration procedures, the test stie, the specifications for "standard craft", the craft operating conditions, microphone positioning, test procedrue, engine speeds for each of 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.
SAE J1281-2009 Referenced Document
ISO 10763:1994 Hydraulic fluid power - Plain-end, seamless and welded precision steel tubes - Dimensions and nominal working pressures
ISO 19879:2005 Metallic tube connections for fluid power and general use - Test methods for hydraulic fluid power connections
ISO 8178-4:2007 Reciprocating internal combustion engines - Exhaust emission measurement - Part 4: Steady-state test cycles for different engine applications
ISO 8665:2006 Small craft - Marine propulsion reciprocating internal combustion engines - Power measurements and declarations