Document zdzmDabGv7wvE12dOdR3z83yg

Personal Protective Equipment US Department of Commerce, Washington, D C Materialsfor Safety Wearing Apparel Com mercial Standard CS129-47 July 21, 1947 U S Department of Labor, Washington, D C Controlling Noise Hazards 1959 Personal Protective Equipment 1961 Respiratory Protective Equipment 1961 Safety <n Industry Senes U S Treasury Department, Washington, D C (Also available from U S Government Pnnting Office ) Federal Specifications Webster, ) C , and E R Rubin, U S Navy Electronics Laboratory "Noise Attenuation of EarProtective Devices " Sound, vol 1, no 5 (Sept-Oct 1962) 1204