SAE J1166_201409

1. SCOPE
2. REFERENCES
3. TERMS AND DEFINITIONS
4. SYMBOLS AND ABBREVIATIONS
5. DATA ACQUISITION AND REDUCTION SYSTEM
6. MEASUREMENT OF OTHER PHYSICAL PARAMETERS
7. TEST PROCEDURE
8. CALCULATION OF AN OPERATOR'S SOUND EXPOSURE
9. GENERAL COMMENTS
10. SOUND EXPOSURE WORK CYCLES
11. NOTES
APPENDIX A - CALCULATION OF SOUND EXPOSURE
APPENDIX B - DEFINITION OF LOW, INTERMEDIATE AND
             HIGH SPEEDS
APPENDIX C - SOUND EXPOSURE WORKSHEET

Provides the procedures to be used in measuring sound levels and determining the time weighted sound level at the operator's station(s) of specified off-road self-propelled work machines.

This SAE Standard sets forth the procedures to be used in measuring sound levels and determining the time weighted sound level at the operator\'s station(s) of specified off-road self-propelled work machines. This document applies to the following work machines which have operator stations as specified in SAE J1116:• Crawler Loader• Grader• Log Skidder• Wheel Loader• Crawler Tractor with Dozer• Pipelayer• Dumper• Wheel Tractor with Dozer• Trencher• Tractor Scraper• Backhoe• Sweeper• Roller/Compactor• Hydraulic Excavator• Pad Foot Wheel Compactor with Dozer• Excavator and Wheel Feller-BuncherThe instrumentation requirements and specific work cycles for these machines are described. The method used to calculate the time weighted average sound level at the operator station(s) is specified for Leq(5), or optional exchange rates, during continuous operation in a work cycle representing continuous medium to heavy work. The work cycles provide a repeatable reproduceable means to uniformly measure working machines against a “yard stick. A method to relate the time weighted average sound level at the operator station(s) to estimate operator sound exposure with part load work, supervision, and rest breaks is also provided.