Document mmY6o1b99QdBy2DwN2qQwZG90

$6$ j-'iw bt v : m Corporate Trumbull TO: . Mr. K. Q. Scovrcroft February 16, 1977 On several occasions the question has con-/; up as to whether or not llaybsstos-Manhattan can or should mahs~~staenien~Es~to'~th~e.. effect that our products can be used safely i"props"rly handled. ' Unfortunately, we cannot use the word safens imply because^ we do not what a ^afe level of. exposure"!^.. ^Science has not yet been able to establish a level of exposure below which disease will not occur because insufficient tine has lapsed to perrr.it epidemiological studies of occupational croups working under modern well controlled, ,r conditions. .. J O Although vre must not use the word safe, perhaps we can devise some kind of language to indicate to customers that, on the basis o: field tests we have conducted, R/li dust suppressed textiles can be handled without exposing the worker to airborne concentrations in excess of*OS;lA. standards providing proper work 'practices are observed. I realize that any such statement v/culd probably be rather awkward and-perhaps r.ot very effective as a sales tool, tut I don't see that vs have much choice in the matter. If it is intended to go ahead with such an approach, field tests used as a basic for making a statement should be carefully documented preferably by an indeper.dent_testing laboratory. I an enclosing a copy of work practice instructions for re asbestos dust during brake servicing. This is included in Hnywestos passenger car catalog and is distributed along w material to persons inquiring about brake servicing oroced You will note that the word safe is avoided. other /as Jorm 'A. karsh Enclosure cc: Kessr: ft. B. .Sims I. ii. Weaver Drs.. K. C. Levinsckn J. J. Magenheimer. 24933