Document QJDr0RvOBw1M6vYD9bGDnEx0L

\W ( ',C- fiA/V'-rS^O^ T::c !.-r.j.-, irV; j>: Of R^YS:-:T:^o:^;-;/TT^f me. Llrr t1 fj r<L , ana -'? A third survey of thlc pl&nt rta conducted on October 12, 1? and 16, 1939 by thw Iniufltrlftl Health faction of tho Metropolitan Life'Incursnc Conpany. Xba Vo previous surveys had bean tsvdc during Kurch, 193-0 oad Juno, 1935. This pleat in engaged in the manufacture of peefcing, gerVeto, Mid brats linings. Sinco the previ-nu curvoys the seven brake* lining processed h*vo been cliainated find nov proceseee bi.vo been installed. * & -* fL..:cr c~:::.T.-.r.u7L s Tbs pL^nt Is housed in ft riu.sbcr of on: trto ctory l-ricx buil-;inC? of rost ra construetI:n. .X.npl:? r.-'lur.-.I 11! ucir.-tlon r.d vcr.til : lion fru f.a;.illcd by nuaerocr title full tin-o* * and tZ-cylijht c. Orric.-s *rc loci- ted In ecpur*t fculldLnys op-rt froa the senufseturinr dp j rt-nnt: plaS7 y.:jc: :.^;U ?-lriy lf . JL2. .Fh*<t ??-cV!r:y In this building shoot packing Is a*d, froa *hlch br*ke lining, laskots, sad peejelng *ro ct&apad or cut* Ashrrtof. Asbestos need In chest pr.ciclo; la prepared for ueo In o crusher, end opanor* The ecbestoo in grsded on ccresno. The ftsboitoo psocinr through tho opener Ic dueped on the floor end then herd rhovcloi Into the opanor* The opened obfjdtoa is than convryed by tir to e. hopper on th* roof end dropped through pipes into the gr^dln^ ocre-r.e or directly into r. bond truck, ferep estcrlol la prouivi in c pulrrritar, thf-n cor.Teyod by tir to hoppers on tho roof md dropped through plp9* directly into b^ca. ?h& Ion* operator la thlc rooa Is supplied t-ith. tr. approved duct rorpirator. Thir rooa o?ns directly lata the dry cold tlx roaa sad the :;i.tn alxlnj ted roll roo=. Tinea the.previous survey, the cqulpacnt in thio rooa h=a boon improved. ftaplo 6 of 1935 survey end tsaplo 3 of the present survey chow th-t ood results have boon t-itslscd* ` llX Kflll Jcii 2hh Us ter Itl for the dry cold nix it hnri ccoopcd froa original cac- tciaers tnd dunp'.d into e. barrel on t t:cnlo. Host of ih* ssat^rIvls used r-re N \. kept In iooevljr cov.-r ;-J or uuuowrv - cjr.tr.invrj th bitch la *cl/.vo ^ .. tb oporator c^rrlcc tha barret up - flight of *t*lrc to a aletfora *jvi duopo the batch into th* aixor* Th aired b*tch is th*>n drooped fro tho hottoa oT tha into a truck. The o\.t? rl'l*. v:. ,i In tho.'o belch'*.* c-ict'"in a^h.'ftoc, cr.r.*p_ llt-s, r-elft, ftor.tlclscr (nlKcttcir-.r) *.n-d ?cr:sp. Tr-i rubber r?lVl; arc located io thlc 7*oo3i* It thii 11s* of eftstplinr co'*. of ih?e? aills *ce oo*r*tirue* Thr r.ibhcr it thrown t raur-d ihc floor j c^tt* rir.r~ ra~* to?-? tier;* dust, ?c`j'.rt7rs *irc available to tho operator but it t~v* not ad th tth* r'.rplrc tor v*J3 cot orn* 'A *o exhaust tfC,ul?aiot ic used Ln thir dcpcrtcont* father fw-nr'-V r - This rocn ic loc^t#,-d ct ono end of tha building and oprnr Into the nixing and roll roon* Tao operetlora in this rooa rro lateral ttc-nt. 3stcho* conUilulr.^ liTijo quur.titicr of lithor.jo (l!& free lcr.d) and s>ic* #rc i>*lci6d out iron original contcinors into pnn on a rcr-le* Tho cler is rcotlved in bttjr* Those br-^a *re ripped open covn-the middle r.r*i- cllomd to lie on'th- floor* Xt tc: noticed that during Vaj> *ei;;h.tn;; connlcierabl* <;u^ntitl?s of th'.- lith-r;;* send nice aero spilled upon the actio icl floor vh'-re tiey tori' clloned to r^or.ln until clooo to the on of the shift- Thr floors and teal*: *rrs then cleaned by dry sce?in,{. Tha coapleto batch coct^ir.r. llc.uiC bss'.llt**, sulphur, cier., ecbertos, litharge, croclcr, ccrcp ;.\nd rubix-r* 7hr percent of litnsrjc la the batch varies Iron ID to 35l Tns voighad batch Is then trucked to thf rlxarr into ehlch it is culled >nl cir<d vlth ;*.feline c.-d rcb^rtoE. ' Th epc-r*. tor vtrilnj In thin dip>.rt:<*nt hvd b'>-*n a* one tian supplied *Lth t. du*.t respirator but preferred to vorx vLtr.out it, c.'-aol* Inins thrt it lr.tarf^r^i* tlth his fiancee. %v> also t.--lc it r- r. too V.ot. for comfort* Tr.ic nrn xtst':J th' t h* ht.x lM-n ;-t t*.lv torV: for fbout r.-von yvorr. -A-- In tblr d:;>:rto'_nt *.:.! b-..tch->s r--. r.l-<d rith f. --.lit:' In tlot-.d The atrtd ast<'ri-l 1- t,~ h.-ni *hovul.d frer trie riirr into roll~,, Cr.e roll if- hot, the other coU, Tr- t-<ri: L KUr.*r<:A Lo th- cold roll* ?n ijfct>rll It rolled to tha tlaclrt-6 t'lirimrey. iron -.ho rollt th<* iv-terisl 1* IT.:.;, r.n n.lo --Utllr.* r.* th. ihc-.-ti -r- i-ui to 1 th. o- lof- used 1* rccoTarcd in a cocdhnnrr lec^ifcd in the ~rooa* ?roa they ebestt* rin^s, .<iu.ott und ptcitlng <.ro frlAspud out on po-rr n.chinao* Ono ccri of th* building to used for otorc of rnv *si.torlnl* -tU iailiiiu, A~al la - Jbicd Acbftstor. bot.rd uord in nntin.2 eletch ftcin* -sul - aperi&l a^tarltl celled L3 la ui\de- In this dtpsxtscnt* Sere? nr.tc.rlal *ni n.'t> ir-bsstoo =rt hind cuaned into pepor bnr.torc cixod elth. *&tcr tnO t:t*>rch *nd; uorhed to the prop?:* ocnoifctency. Tho pulp Is thin pcui'od through tho rollt to t'n requirri lUicknoen* The LS s^tri?.l -hlcb. lo coopoeed of tobostofl, otostxod crthLlic ties, gllconlte, grephiteA end ecrep ere nixed la c. bsxt-jr tni tho pulp proof'd to stor.-fo tr.okc. The ctosired leid la *:bout fOO acch. Tht Iced i.-i duap^d on e. piece of ctrcbotrd on the floor In front of th<i b-/:-t*r end is into the pul? bp brni f.hov*lltv; into c sieve reeling oa tho top cf tho b-i-.tcr* Too vt oulp lr run fran tho betters to etora,"e t'-rAo. Proa thr rtorigs t*.r:k th* ot pel? 1.- run into trovghs (coffins) shsro the r.ntcr ie drained out, invinp thi rolid v;-.torl.l In the trough. Thi solid niteri-1 lo thou trsr.tfr rr'.d to c. hr.:.toJ pr<>r; h/r* it la prm- #ts to required thlctr.< rp/ n xovt-i .-ad cut into r trips l-j* h-.nd. It r.*. not'.d thfct tho opsr.'tor ht-n-ilin^ tho ttonin.-o lord l. ' t-o othf'ra in clor proxinlty did not <ir recpiratoro giiUla- '... A1bef.tos bo-rd is cut to *.izn for th punch in;? cfChlc*o. Ir.cltJ-B >re Ptaa;>d out on e*schinr,e by sen *-nd vip*rd end rtfek^d cn ekipc by girls* The coeposilion of tbit bc-crd is prictlcolly 95^ cr core ccbcatos. 1 l T* l t I ,*' Tvcinge ft.ro cured r.nd tsaa finished. The finishing op-rtion2. ioclud** grinding eurfaouc tod edges ou Bltnchs-rd, Cincinnati *nd cylinder c^lnd^rsf drilling r.nd that bliveting. All nschin6fl in this d^pertc^nt sr culpped *ith exhaust ayxtcns. On tho Blanchard grinders end drilling oporatlona these ` xlvr.ust eysteoa * fcUijsoctcd by th* u:o of conpr.*5<-d air. ft tho ticn of this survey, tho coapreacei -air Lino cn the grinder, s*. chine isxplc fL9, had boon aorod out of position, causing puffo of dur-t to bn dlGjs&rr^d Into the r-tsmephero rith etch revolution of the grinder. This condition you readily r^nociod t-ftor f.ttention had been called to the condition. Coor.iderabla duct idherinr to the clutch fucinge la dispersed into the etoosphere *hes loedLng the nr-chlnvu end restocking the facing* on tho chips. So provision is a;.do to cs- tr*p the hnr.t at thocc points. lax'ysld This is e cca operation. The sisturc for this operation ir-se.de in building fo. At ths t!n of thit earrey sc chine? ?cro b-ing installed or renovated, to that tests talon t this operation. vould not hs.yv b***n representa tive, Thsrafora, no tests *r</ aide* r tvr.ild The s%teri,*lo used In tho T>irnold b&tch tra 5lr*i in r.nt.ll ai?erft in e partitioned *r-o on tb* *slo fl-or. Those avt^rlr-l? lnclu-'r r-xbattoa^ br-rdood pitch, culrhur, lt=pbl*c'<, jcraphit'e, rabontlno, po*der*d *'olV> l~.nl *nd ir:d>r oil* Tb hurdiood pLteh Iz run through * criu.'cr four tlooc to the r- qi;lr*d aorh. The pitch If* h-nd scooped from the container Into th~ jxin.i*r* This trltdcr if ^ncloecd *.ai >n.u\t-:d* Ti-. poviorud shlt-fe le?>d, *-t Vvll i> the pitch wnd indcr. alls, i-r* loot in opao b"rr-:lr. Juft outs id-' th- partition on V-f ae.la floor* The* compounded h*.tch Is urea on th<j vlr'.-aol-i aschlnc> vhlch Ic eloo Iocs-- ted In this partition. Ths cun on^*<$;od at hutch airing duct r*?plrz tore, but th? srzx et thu isacblns-tv fov fe* Iran th* nlrur tr<t not ro protected. The nl?srd aatcrlsl tft pr.tosrd around tv rJr? backing And Is und to c-.k* breko lining* Inforfiatlon van advr-r.ccd that plant rod spproprictloss hava been s*da to provide dust control at these operations. * ' P'aptr*8.. Jr2 sul 1L - cx iiufchar Eoidcd end rubber brekr lintnja cr* finichod la thoeo departssetr. The oporr.tlaaa consist of crLndln.3 ard drilling. All .-ipchlnoo, with the creep-- tlon of e fuv caall drill prosc-cs (m chines i-^SO, T77 Rr.d 9?) rre erb*ust^d. Isiii* 215. - Li x-rmlr.-: In this department L3 broke lining io Bhcped tad preload la ma-- drols, wonpatono ia bend dusted to prevent the lining*: fron sticking* The operator on this Job -.tro an Bpprovrd dust r<*rpirator. to rent faaa The copea ua*id on tbr bra as lining* e-nd clutch fr.eincc ere nrvpr.rd ftnd etorvd in k -pupate brick building* All rolvcnte arc kept end prop*red In closed ttnkr* The rasin cslvontc us-d cr 57I0I, f orne-lci^hpco, cr^^llo acid en-J cceton.* . To* BCotunc- lc etored In t*n'ac outnire th* building. Ti;o ( Lj -7- prxp: rod is pviopid to tho "sturr tlar. rooa *e rc^uir-d. The nrpholt ured In tha return tlor. ie nit a col* tor product. othar o>v-r`-tlsnc ir.d dfn:x lac tilt: Include Ir-ap-vctlon, tsre-tbly of .v-rtr ,nd psckln,: ol flnlfhod product, olr.o j r.'.cbinr chop end toe* e:-ct!on. Th^ro 9 oport-tiooo fcro loc-tod la th> xuvest feetton of the auln building. - There sr no duels produced by thoe opn--tio*ir. j*` KtPK*L '?'AwtiITJ- S t?*_./ KT A `t'u* n(>. f\ft-j ^ Anple t&bin tnd toilet facilities sro provided. Drinking **t*r is supplied iron nechsnlcslly cooled bubtlor fountains. A rertourent Is evilnbl to oil c-xplojeec. A first aid i*ooe under the direction of s full tin* nuro* is sulntoln^d. iioutflkeoplnfl in ^onax-ol if jjco<l. Air.leB <rc tell defined end srs ul*ijrfr kept fr*o froa obstructions. Vacuus el'eninj? ic employed on tho rufters, rollft end floors in tha sftio building. It in plunr.cd to ertond tbit to other bulldingft. Safety ne-e tinea nre bell cnco n reek, it vhlch tino tha employees* rcprscontolives, *. *'--li -as th<*` for earn, er present sr.d t*d:* ftn ective p*rt in the proceedings. ilLTliOri' 0! :./^*hlK0 aI.L /.liAbl'llb (x) Atajr-ph&rio cuat staples xc*re. t-^ken rlth thn lepiurer end tho solvent fuaefc vlth tho interferon.'tor c-t tho bre-.-thing love! of the trorkonn et repr-jfor.tntlvo operations. The intcrfnrav.'.t^r is cn Lnalnja^nt designed for U5 in detecting *.nd vt-porf. Tho inplr.rrr, d^v-tlapcd by the Onltrd ' f-ttttc Public liealth lurvlcc, ia the ttM:i.*rd oothod u?*d In this country. Air \ - t*yn In fr^D-h : l-?*- tv:^~ r-* ~f fp~t *v,r -lnutr. (l)U.~. i*uollc !:* 1-th t- rvlcft, Public h;rltb iiullc* In e."i7, lotr=:lu-'-tlon rr.d Control of Inoaitrlsl i-ust, J.J. ;ilooafi*ld end J loll?,v: 11.'t Al>cf tube ends Ijo o cane trie ted orifice under tho surface of die tilled veter contained In a flue.;;. i`hj air ]?noccu through tho orifice rod lnpia."*e upon n. / lr.tr piaio *hlch brcii^u up tii ir .-.tree*, vlio*lat the dust pf rliclr.r to ** vet and cutrapped In tan vv-ter la thy fl* ak. ilcohot iB-addvd to enxp\u tr.-t presrvatlvt to Inhibit th* e-lu-- tlsa of lh>- fin? pr.rtici':*- crul nl?o *.o prrvvnt ihr femiita of of the fine pprticl*e by cluapio*. faction ia supplied for drying the* cir o<rpl through, the lapinver by ne*ne of r.a ejector, or t>lr.e an -electrically driven puap rhero eoncn-cscd air It* not *.rallsbl:r to uctuvts the ispingcr. Iho duct counts *ro sndo by thr. nothodr. end tachniano duvoLoped ni Uod by tho United ftatan *ublic Health Service. ' Th* follovlr.g t&blc nffern corptrlcon of the results of cnslytLs of f-acpl t\kon at ldootlcbi locations for the 1935 1939 surveys. lc ocbostos lc in volved et practically oil op-TCtionr, duot counts art given nc tot^l count in pillions of particle* per cubic foot of air. r> . - u- iv. IIU M> fM*l UV | 1. U, I^Oi .j p; ' * ^*1 l' ' * !' - . * * 1 ** V-* vtl *4* M I wa--t-lIlM9A;tf.l*U:) 4 twipm JwO^ t **- --p-- > !- lu M t* * ^U | \*AhTj* L`4 1 1;**, .. %*: f mM* >m#;4i>*Jf;*H44 #;a :* U MtelKl aU* i1|.-M4<tMf4.ftM J ' IS *. o r. - .14 Jt.* 1*4 n.i n ii jv *4 fn*i 1] (;* vhi* II S|i; M,*. If. f i'.fl *4 -V * U (m4 i ,V*; - tM 1.1 .1.1 I ji --* ^ * If M#mm%:l-w*:*.t. >1 . It'll !M**lIU . /; 1 ft MM'mIt* 1*111 . fM.M M, *4. n kf*l*H*M, M Ml--I *f IJI * M fj*1'*1) WUIltM.MW.*U!*l.-1< 1(l\ I*t: jAaM, ** flV f t1*->1W.;,Sf(l. ,*l . -- %.!; t M-il tW- */u-rIIM^, . M.1 r >- J`4 m /J .. f/ V ii< JO ll * I. f j v' jau y *.)Hj 3^ VI Jf* -Pit |f|4 1 4/ri/V - * *? -I 1.1 . !) <4 .M)4 n"*<** *w--* r#-..-. ***-M*.-__T_r-> *****"***** *t*mmm,MW ^ ** ^ --t--& UJ urMf|* <MM Ull^ M--||4u#^ imam ^7*M-M.M 4-M W.!_z MMMMMM flllkf 4|M WtM M M| MM "j1 * *>4/ l.l 4 w ., 44 <4f J? 4 -T -J ` >J ^ / ; ; `- ?r t - U4 1 ovu WJ. 1.1 la 11 o:/jj 1? iU ;a . If t. l.l >.. n *.i y :.i;* 1 (r--, ... ^ M . - . I t *J l .IV 1 Ml r 1 * l.l J.* J `J f4 1*4 IM .:n - - "* Ml K1W M toWIH m# M4tffhlil l9.*1 *. l*>l 9% AM (44Ll. *Ml I*FI4M *W fW> Ml Iwltl IM* IM M hm M - 9**9 M ( rwi *i4 toft*. Ml Ml !**M W*V>. * 9 ' 1 M V*. I'M* * ! Cr* *-1!ilM**t*-l*ll*i|.v|I.M . fVlMiii'f.>m.*m1* *9 a/ I.*n1f*>i*all.|--*t.-*-. MM M Ml --4m* SI*' IM 1-l'MiW V 1 M. %i!iM\M|4f *aT I--Im- MM*lMMMVMM* i*'4fn* . *-- Aim* mm--1 My f^ If ' uM:l u Mm Wm--v MM.U- M. * :-i r*.m t.i i.ia ; - IMt|M*tbMilf*Mll|MmItti|lIMIIMMiMVilMlIlMM.lMMflm*yI*M-MHMVMf--ll** \ V . ` 91 II W4.l |14.l **W o 4-1. Ft. . -- Hi'* -`"V 9* kr. f*. -***# * /I*.4.i fjS. 9f *I--.I4Mf.**Wt*W.. *lill.| #-t -t .11 l< il(. A-. |MMy. J*I'*M-*41 |1 J* r**--**. -4 IMMi,MiI 9 fMM*M-H4.Tm"--f1ll| * * IM J- HA UA 1.4 -> f 4.1 ' -J f fl.IMJt ia ' .] 'll .lf ' . %* , 1 1 t I/.I/U >.f .4 - - / * H - tl.j 1t. J if IM* Mr.aiaMmM*1^*4.1*.* lM*l Ml -**4 *df -4>M flU. 91 MfJ,-l * MmI iffIMfl* MM>4-- >> ^llt*. * Mm m> ^Ii* * IfllMl |,IM * > * M M M *MI*J ****- t>l, iiik >: c.yd.,s; .ti...v:> Iq taa cebeetoo rooa tho count r*t thi crushor In htj;h (sa-b-;*1* i). l;V>*rntly the o.=er-tor V*e pverlovMr.tf the. y:-ns. Crushed ccb-xsioc me frills^ upon thi floor, recess l Utinj fro-jucnt rssoploj: .r.:* h:-nd chovelin". It ic recomorKl-U tn*t the rjeaunt of nsl-crisl th=t cen be bandied rithout opiUlng- on ttrr floor etc rtslnod :n.: cent? oUci. Enclorlr.,; tnlc cruc-b-.tr *ould? tL< *lo b* of r*lue. Einco the other op-trat-ianc In thl* rooa cro nev roll. cOn- ('t trolled, tc evidenced by empire *2 -nd 3, It it ::ot necoee*r7 to in?t*ll n debar*to ?yctea for this on* sachinr-. Tho op-;rr-tor id supplied rlth ohd rcore tho proper typo of respirator. . The dry asl<5 batch nihlns ic * dust dispersing opi<"f.tion (rplo 4). i Tho operator is expos-d to tho heevy concentretiona beexus of tho class* proxioity of hit foc-j to tho cont-ltnro rhil* ocaopinv; out tho ingredient? end carrying the ooi^h'id botch up th* stairs, to the sixer plctforn. It Is rccor.r.cndod tact ell b^tch rvi/jMnr oprstLcnr - dry *oold, rire- cold end rubber compounding -- bo done s-t on* point vhorc effective control by exhaust rysteras should bo iaci*llcd Head bnodlinn of -sbJrlelr chould bo clistr.r-WJ oa r.ucb no possible. Th* resin (hckellto) uied in this butch civ produce a dr--etltlr. Therefore, it rill ba coccetory to provide con? protection for tho a'<La if tho renin is to b* Y handled by head. T^i^hed butcher- choul.i then K> h^rnt in clorrd conVir.ere vh^a tr*npportinft to thi depertaeot veers they :.rc to bo urn:'. Vi cuua eyrtra should bo uc6<i for til cletcin^ purposec. The nixing -nd roillnr op--retionc r.ot pr<-rr?it rr.y i-jety c-rciitio.no. xith tho exception of nlxcrs j-y'? end ?13 (m-iilc ,"). IX thit- point CMKi^er- I .V '' ' J A-' \VV l'- .. ^ \gf tv i'. r vhlo cirdolltc duct ir dlcpcrced *bc.-n duapinj *nd alxlnj, until the* aeleriil I4 bc.C5.niti thoroughly rot. This lo f.-:* * chart tloe only. The floor around th*a alvei'* lc tli..*cry due 1j the- ;;Illd r.>t**rlvl r.d :oirt:ir~. Xr.ofn op-r tor# could Iji *dc*;urtcly protest:b if tfv y s<_-rr cv;j;illr.;*i -ith crJ or*. *pprov?d cu;-t rcc^irwtni'j util-- tc.xu'ilia,*; end dunplar t.Y? c;<\voLLt'-. ThU floor should "Lc. k**pt frv of the Curt to eliclm.ia the hosr-rdous clipper/ rendition thi^pc-ilrts. Concentrations of 113 to 1&0 parts jwr jiliioa of &soliz.i vipers *ur detected in dopwtarnt 19, oliitt*-; cat allll'a^ robs. Tr.i* eoccvctmtioa it fer belo* eppcoaiisteiy 1,073 parts per Rill Ion, uhleh la tha nulcso coo centretioa elloafclv for prolonged <irporure 3no batch tit.bio3 operations in the rubbor coopo'uoj'in^ rose tro X - doflnitoly hejftrdous under tho pr*s>nt cathode-' of operation* OoapleK 7 sod Li - cho* concentration* of lutd far in -jxc-jos of the -toxic Halts,. thich hay* been doto-raln?d to be 1.5 oilll^rfae M.Q n tin-hour d*y. The duct respirators supplied^. to tbu operator cro not epprev-od for lead dust. /.c. this opex\&tor h*c not vora Y tho raepirstor supplied hia find has beoa oxniid for r period of ncera yecre, ^f. on r.nd off, it lo rrCoosc.-adid tht q* bi phyrlcr.lly sxRclrctl. fyerptoct of l**d ^ poironing aro clvea In the rar of the report for tho information of your MU phyulclea. ,1 Sesple. ?15 done-not lndlcRt* tho need for ray further protection for tho operator* larking la the vicinity of i'4 better, other than tU< proper tjpo J , jr'+,* of roepimtor. As thic io r.n internment and o'Q'-r'i*.Ively short operation, j ths- laclut.^nco by the forcs.-.n thit ths rscplr^torr vjrn c.lould not br * ctrl-ius herdxhip for tiu* a.'n, . foes pi? yl? (in th-* flnlhln-; dr.pertnrnt bitr?-n 01.%.nchr.rct crin:1 -~e 571 .ni 7'*) chars. e.vfiui u* hr-r.ii-'ous coalition. /Ito.ou^b t.hi/ rvrult -12- A, obtained undur nil x.cnaru-l condition due to Improper Betting of the o>.h:uct sjLt.-7-f it ever;c to denoactr-te the r.c-vc for periodic ch.*ct u- of t>-cpc fysiex* (,-j t-- cnjlfte-irlsg tuff. Tiji* let d concentration found it tir ro'.r.t la three tin -- cr >t`t.'.r th<u tli> tonic Halt. C- -pie .-.'"1, be.to f - r. rr cM:*lc *457 end 45*, indicate* th* aoro uor*al conaltioo at tha Blsnchard grInfers, baapLo depurt-Tnt j?13, ihot.* u Itid concentration 'pprotcifffig closely to thn toxic Halt* This 'condition could bo clialnsted by axu of one Central batch weighing and airing deportment, *>b hme already boon cuggorted fnr other b&toh w-l^hln^ operations. The aaturent room did not ebov coy den^oroua concentrations of tolrentj*. 6lxty-four parte per alllion of zylol vox's found. The maximum concentration for prolonged exposure of xylol hen been estimated to bo leos then 10D pert* per million. Xt in recosaandsd thnt-rhea ner procoacen f-re to be lnnt^llod a stu2y bo snde of the various ingredients In the notorial, ns to thoir toxicity, end the proper protection applied nt the beginning of tho operation *rd rhllo it la In tbs experimental rtege. Taking into consideration the mount of grinding and drilling done, the counts found vara Ion, indicating tha efficiency of the exhaust t*jstrr.s. The hazards in the plcnt era confined i-olely to tha batch weighing end oixln* operations. Proper control of these operations rill clixinsbo the health h<.s*-rie in tills pleat. The report of the eurray irdo In Juno 1935 cant*Inc a discussion of health har.oroG of tho toxic nubstfrucac ured. K* forcncc should be n.-dc to this report In connection olth tha findings of tho present report.