Document B501nzgdnyGKQpBOB5BxeLLbE

fir* - ST0084348 II . February-11, 1972 T. W. M ir.r.ur II. V.'. Snyder '-J. A. ni&i'.crs ^ll. L. Cordon f-H. K. Hoyle *'M. Kelynan R. L. Hue11 3\?yj Occupational Safety and Health Standards Roots 304 400 >'lr3t Street, S.W. j- Washington, D. C. 20210 Oentlencn: The following cements relative to the proponed Standard for exposure* to Asbestos Oust (F.P.. Vol. 37. i*o. 7, 1972, pa~c 4f6) are respectfully submitted as a result of. suggestions received from several of the scat Interested persons within The Dow Chemical Company. f j i ! $ 1. Section )vl0.93afd) (2) - ve suc-est a vonHi." c'-vuvr re tune t!ie section would read. "All .h.-.r.d-or pever-ooerated tools used In fabrication chcon which produce j.chestos oust such as. but not li-.-.itoil to, T'-v:. scorers, al rnsive , and drJlls, ."..nil be nrovidc-vi with local exhaust ventilation and slnst coiluctorc In accordance with Che American "atIona 1 Standard FunJ reach Mis- Coverninp the :>esli:n and Operation of bocal Kxhaust Svstc--.c: Ah'S! 7.9.2-1971.' *- !.*c believe respiratory o-atection should he sufficient for use of such tools while npnlvin" asbestos insulntien cquirr-enc. Further, it la not practical to use n local caanur.t systi--. while applying asbestos insulation to emip:.ent while usinr a scaffold or ladder. I 2. Section 1919.23a(d) (3) - ue (iupr.cst a vordlnz change so that the section voulJ read, `'chtnloycos uxnosed to the hazard of asbestos dust from the sprnyinr of asbestos: ti.e demolition of pipes, structures, or <?<ioirz.er.t covered or insulated with asbestos; or the demolition of insulaetnc str ii.pinps. shall be provided ..ith respiratory protective devices in accordance with pernernph f this section. 1j. S' Wo believe the above voulu allow the use of methods that would effectively eliminate the asbestos dusc hazard, such as wetting down asbestos insulation before rcnovir.n it. without the need of a respirator. "e do believe such alternate methods should be permitted only if the atmosphere In the area can be shown to bo free of asbestos dust. -v In addition to the above changes. slilpped and/or contained in a pacl;ose that will prohibit passap.e^of asbestos fibers. Very trulv vours. 7" H/WJAKAj ' ' "" | - - 1. Wayno ". hancoch, i'iteetor i Labor Relations 4 Safety^.: ' *. i ~ ' h v :*{ U: :5j: j -- . - - -T 1 -