Document xyQ9odnmvj7KXg5bvZXvv6RJ

PLAINTIFF'S EXHIBIT UC-3927 Mr. W. J. Kovsck Mining and Metals Division 38th Floor 270 Park Avow Mr, W. T. Atkinson Mr. V, C, Thurbar Oecsnber 18, 1973 Msdicsl Department 4th Floor Asbestos Standard Doar Mr. Kovscki It saaas that we ara all In full agreement concaming tha asbestos standard. Tha B.C.O.A. Coswlttee has already informed MIOSH of our concern for naking it a two fiber standard) but aa 1 indicated, X do not believe It will change their winds. As you know, tha Occupational Safety and Health Law provides far a five fiber standard until 1976, whan it beeones a two fiber standard. There is one difference, howevert The ceiling value of ten fibers per cc in the OSHA Lew does not specify e tine Unit whereas in the Coal Mine Lew it will specify that an individual can be expoaed to ten fibera for a half hour. To sons extent this balances out the two fiber requirement in our opinion. Very truly yours. JJViBA John J# Welsh, M.D. J UCC 014387