Document JrqKdwzXNNZ9qEMaV3qqDzw2r

INTtnDCMMTMtNTAb COMMUNICATION TO: rHOM: *UJtCT: *See Below M. F. Flak MICA-ASBESTOS CONTROLS OATt LOCATION: LOCATION! July 27, 1971 Port 1*nd Upon reviewing tha Occupational Health mod Safety (OSHA) Standard!, we not* a chang* In ch Thraahhold Lialta aa regard* nice. It had baan aatabllahad chat nice containing SX or laaa of fraa alllea (S102) ratad aa nulaanca duet, 1lalcad to 50 M.P.F.C.F. Tba now Baxard Control Act apaeiflaa that tbara aha11 ba a cooveraloe factor baaad on Cha parcant of fraa allica and Thraahhold Limlta aha11 ba raducad accordingly. Tha Thraahhold Limita valua for mineral duaca aa adoptad by tha American Confaranca of Govamnantal tfeduatrial Hygianiata la 250/T S102 + 5. Mineral duat containing 2.51 fraa allica would, ba limited to 33.4 M.P.P.C.F. lnacaad of 50 M.F.P.C.P. Whan placing a purchaaa order for alea raqua at an analyala of Cha product aapaclally Cha fraa allica contant. Do not eonfuaa combined allica with fraa alllea. Tha analyala will indicate percents agaa of eoabinad and fraa allica. Tha problaa will ba craatad whan Cha enployee aaptlaa tha aacka of mica into cha mixer or blandar. Ha and_other anployaaa In Cha araa ahall vaar duat raaplratora. Wa recomead tha "Duatfoe 66" obtainable from Mina Safaty Appliance. It glvaa maxima protactlon agalnat toxic duata, to cha permlaaabla llnlca of lead, plua flbroala duaca. / Aabaatoa: Wa have a alnllar problan with aabaatoa, that lat whan tha awployea oaptiea tha natarlal Into tha nixar. No Thraahhold Liad.ca have baan aatabllahad for fibroua aabaatoa. Thia la tha raw natarlal that la added to tha batch or nix. Wa ouat taka every pracaution to elinlnata tha haxard and eo protect tha employee. / ^Tba "Duatfoe 66" la racamended for reapiratory protection. Tha nodical profaaalon and hygianiata have tatad chat expoaura to aabaatoa duata are barnful aa tha reapiratory ayatan cannot expel the duata. Tha partdolaa lodge In cha lunga and kaepa building up and . aabaatoala reaulta fron cha expoaura and breaching of tbaae duaca. It ahall ba anndatory that tha eaployea or anployaaa handling cha baga or container* of aabaatoa wear raaplratora. PRODUCT Page Two July 27, 1971 Mica and aabaacoa ara lncludad in Cba Fadaral Occupational Safaey and Haaleh Act of 1970, (OSHA). Tha inapaccor will raviaw rulaa and ragulaclona porcaining to aafa handling and pravaneiva aeaaurea. Tha procedures rafarrad Co in Chia leccar ahall ba adopted and enforced. Mr. H. tf. Scharf - Marlacea cc: All Plane Managara (except Canadian) Mr. C. E. Wilaon Mr. E. B. Hollingaworcb Mr. T. W. Richarda Mr. j. tf. Bare Mr. C. tf. Lahnerc Mr. J. B. Moaa TE PROBUC