Document gaaQJ2VL6XeO0Ng7Vbnrgn35a

TO: Keith Fogg FROM: DATE: Interoffice Communication SUBJ: T. G. Grumbles April 9, 1986 AIR QUALITY FOR SAND BLASTING HOODS VISTA Sand blasting hoods are classed as a continuous flow air-line respirator [1910.94 (a)(ii)]. As such they must be supplied with Grade D Air. The ANSI standard referenced in 1910.94, ANSI Z 9.2-1960 is no longer in print. OSHA has not updated the reference in the regulation. Thomas G. Grumbles ajo/8 Wv 00017120