Document 5DxzMM8Krgx0E3K4NVGex7mv4

rnM~9t Bt lAftTT 1 PTTB PBCTSgnum 4IIVS5JO* & + Aoaording to X. X. Xouper, Conatruetlon Mrleloa Sifity Superintendent, thi engineering itulvti and HMtflHtlwi bar* baon nvlmi and lb bu bun ditininib that all brand* of oaoe^fcAl him* m 5> tatlnwrlbl Ittft. iJla. STn-i3.l.1i lSjui11lIA4t*hlboie,eT,scTlnfiifteinrenaae*tTttHTioTnaTag*-S;S'oarprhao?oyctyraoerbXltbnSrtlV~ata1tff3rBriBfelylT*rftr5T<d-ei~lrdeSroereS^IlistIIerth*r"-h'''?vV^i*lb#b-a--S--f--:-----------tai* reriew aid* bjr tb* tn^Mirtai Department and th* Purehaslng Department. they bar* found that neat of tho manufaeturorm art ablo to provide information (boring tbo flbor typo and poroontago. Thle etudy alao roroalod that tbo North Aaerloaa Aaboatoe Corporation uaod a oonaldorabla aaount of oroelddUte fiber* la aany of tbolr produota. tho respiratory protootlon apoolflod by L X. Xoupor la bit aeaorandui on duat ooatrol datod April 5, lt<l, la oapablo of flltoriag out partioloa dors to a also of tbroo nlarona. tbo apoolflod ro*plratoi7 1* a aodolod Puotfoo . " "'/J with filter lo. SM 21 1-17 manufactured by tbo Kino Safety Appllaaoo Company. tbo Coaotruetloa Slrlalen plaao to laltlaoo tbo monitoring of duot at 21 eoaatruatlon altoo within tho neat noath, Qiao altoa will latludt turnout, Tiatoria. and louatoa, Za tbo oraat aayoaa wiaboa to obaerro otapilag at Soauaoat. Hr. Xoupor would approalato being ooataotod prior to tbo rlaltatioa aa.paraonnal at tho alto hart boon ttroaidnlaioduaoanlytbolaporoogarpaUan. g oad do not haro a good background CUtaik 139 J DUP 0900994 OCicc-3 129655