Proceedings of the international occupational hand-arm vibration conference, October 28-31, 1975, Cincinnati, Ohio. Wasserman DE, Taylor W, Curry MG, eds. Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, DHEW (NIOSH) Publication No. 77-170, 1977 Apr; :146-152
In response to the publication of proposed safe limits of vibration produced by hand held pneumatic tools, European manufacturers formed a subcommittee to recommend corrective actions. Measurements have been made on six representative tools, with one tool there appeared to be a D.C. shift and exceptionally high acceleration levels at the lower frequencies. A round robin test series was conducted with grinders. The results from four machines show that the acceleration is within the exposure boundaries, when used without the wheel and operator. Measurements cannot be made with confidence under working conditions. Plastic sleeves to handles can reduce vibration at the higher frequencies.