An evaluation of pneumatic tool noise is reviewed. The literature survey and survey of manufacturer's pneumatic tool noise data observations are described. Observations of pneumatic tool noise in the field and data from users and OSHA regional offices are presented. The purpose and methodology of a laboratory study of pneumatic tool noise are discussed. Measurement data are listed. One third octave band spectra of noise from grinders, drills, saws, screwdrivers, chipping hammers, impact wrenches, scalers, and sandrammers are illustrated. The authors conclude that metal workpiece resonance is the biggest problem and methods of solution have been mostly unsuccessful. They recommend more research to develop engineering central techniques, redesign of noisy tools, investigation of alternate tool usage, the development of processes that eliminate the need for noisy tools, and control of metal resonance noise.
NIOSH, U.S. Department of H.E.W., Cincinnati, Ohio, 68 pages, 11 references