Document VVNpDDpmzBvww7q3GkBMVp48

FILE NAME Quigley QUIG DATE 1973 Jan 23 DOC QUIG025 DOCUMENT DESCRIPTION Memo - Respirators for Asbestos Work RIP rebuts rebuts January 23 1973 TO RE s f Mr. B. F. Metcalfe Respirators for Asbestos Work Respirator policy for irregular work on asbestos should be guided by 1910.93 Air purifying respirators 1 can be MSA Powered air purifying respirators 11 are generally not our plants Self contained breathing apparatus such as 66 or 77 available Scott Air in Pak will satisfy condition iii Actually unless tests are made over eight hour averages it would be difficult to select classes 1 and 11 Of course drilling a gasket outdoors in a stiff breeze probably would be accommodated by class 1 without any trouble But generally speaking without special monitoring tests a self contained breathing apparatus is probably the most acceptable , answer for short occasional jobs IKH sm CC Mr. A. P. Osti