Document XzMpD9ev01GDOXxx3gZGmBYjg

K, 1H; EXHIBIT "H Er. 7. t, 'Jt'itium, -.5. J-r* u ' Lumi (llsLC, ^itur, Cvi*. CllLF -* La, ilii. 3*47 Jt . Marlt_-xl !i* JtnjCrpsriltlL Ua 'a a fLwl >1 Maori 11* , C. J, r lr iL<sit LSOO pro oil. rr Ki ,ilw H * 1^*, tf '.u Lr Bi^(, 1, 4<t*r>4Mi taa l=albi if uMUllll La Uh ?USI. If it <U| Mr* pn^ ** Ma ina-twir a f u*l: vlIithi u: tt \ac r.U6fOicgrai. fill W irmnnaJ Mai i*fvL ta wiULu 1^ Ihi tba f.-Laraiac JU tar* rill Lari tm orraoetlan rite VSm I-rv We, tu U f*l* t* wo Uir iiipsiLi 1U WO 1-!V MOS Won wnmo It tb*l ulkl Uu flurnetp. la umai, It, fillm it ( Ut ipialn iki it *111 fnMUf W lif n*ull. IS t iopoaTitli, te pier 9 Ultiuiu *lti a flu raise pa, tlLwra^i la t> -j. tiara <nlt ba nc traiMlt k tataailif allicaaL* Lila m uuL, 1 BBT* MB\t Lh* Jatwl BanrUli Qaipa'allai. It Eu hUirt, ti*l Lba* lapail v* - j-rs far bfea laVirmUlla; at in i*rv tllai, |X it safiar , u; li*j *111 M clix La taaj 7n a fa* of IM M far fvi. Tlmj faal, a* 4*aa if. Ifllmi tiai tt*r bar* as awr-a r-kjtil a* ul Oil anlM Him ;k fl'mi frajw rimffaaw btaa ita; anil 117 Uar put cl 1^ itdf, H mt it writabli u 7M., *U1 ;m flaui lat o taw* it tbit 1 iu w. e:r Lr a La tlth Hr. Tatfiaar ban. Ua Lacard truail af ii fntiTir larfTIr Csrseril ISi- ] tap" Li*t yaw **i *0 lilt aa tall La rttl'j a ti-j tparLail trpvri asi #i tlnli licit fitil,t: a: p^i tlul lUiinUe: lr it, nit fw fur-lM iffieit. 1 Mi bilif to till! IH file Sr. lb-til Iliat kxrel 111 Vit bintf bD till laf.tr tf tael u lonilit Iter u llli la t rartjia. I a? JliEtrtl,- --V AT t , r i. A. J. bat, r-. ftlltM afili Ilk* CM rpl 'l*s if flV nili It iailrad fa* tilt airl. liM*. It. furl.' lull lilt nu *1(1 I 3*04 Oaal al ca-.-.r-av, aa 5:1 aTl'.iL" ll/it fill 'il:. f(Jl 'Jf tit urU*r {wvri, Jo oUltn tiit * :tlc until; cintribli Till twl ;. U 10 lilfapimii K'lti atMil ortbatV w itiiifitutr, I till MrsrtcUtt if nz rmlji tf lilt jrri vatic rr 11 iLac111 l* 5r* t- t, hUatn oirapaluti Ufa IDmra|ca it., 1 0.L11: iftsu, ;af ;*rt 7117, ti: lirili ill Ml It III LIT-- Iflll . fUKMTLt , Ijl titta uaamili ium is aa; a_ct _i ar c'.il-'L1, aa mb ua iiI.ceili. A a . I.. I'l M*r** '41 1 ft aw; 11, .5Zi. sr. *. .r. laeji. lx li-i-9 Mnru iOtoTi Hi*, Xmi, X." St. Ibuxa: Ii JHsXr to J1U1 littir Lt ftftfm-d* U Llltr^itLac I*rv for U4 Jom-LAO-rl.il* Carpcra'. .it, *f oaplirool nru, *'. i3i tafr*ptlLll t*jlZ.' At liPfllU, 1. - .I U fn dm, rifiiliUni f*"l,t T tf lb* htUc UilU b*a Act-r?i U<r *X7 g.tt'i tar tef* lull oll&ool VLM *!!: St tf lh UpiB Marti ullt, 1 M tuntin oaadllf fc. Upn "Tf r )fj l*tt*r far fell KtlB. II It 1j UTOAtll* flli Ul, ; "114 oort-Milr W fiAg U rowm tki CCC. X, *t I Lea' 1 fcun if ucnaiaf (Ut ofUll tgat LX ~-r- buLv ok tla ?toi*bi watt, m I tar* na. tmitenUi Li bTl Ul ifpiiili. Ilnur, if 11 il fet pATU.11 l*i* , fit mLf ' Ltr u* >--ou'.. t Hid *h* file Mm 4ai w* ; nn tk'. ft tttit t* t^Mtli u bi> Hnn l<: n TMi ix*t vLtbtt; Ljoj-r** nl4 uriiL-.ii >* (;t it mi tbt fteturti far rxv. La tip iTitt. I tr. mils* Sr, ft.. of m r<tru< la 7am littfr rtvk niir>.'.ii is in* tiifUtir if fllii i-i:!. : ia-n m: lx '.i* Mtal'.M fits l.ittftlMl LsJl-aaiat [tat =7 di^-ji u: fat trti or W- itrl. ! b to**!1. kit = loatlaj fit uuta lit; L_ ifltrun n .-At* i-. wriu^iiti pxt. u li tout i u<i iffteui c Jtwt to n.t trust. ijriMr, ii* ttvoalicc juaytieiAt* 1*11 m i- it i iigan:: ail alt tut I wt * V 1 _i: ;i ('.111 A *tIT `HATliitll IILHlltL, l *AP* l t* fc* ri at v fa*4 **i tbl* t* (Mr* it_LLE a tcjrl tlA. ilti mii "hai , ; a ToiTI rorsorlfjllr. 7. T. Ua.-tfotsar, r-T(u: ir f^rp TCwlS- Inland lUnui act.irln^ Division Dayton, Ohio October Ji ana ,<ovc_U^- l, I.'i? ' . ife*i L. B. Cu "Seven tools pertaining tu tsbostos Just, live u<. u. pertaining to both asbestos ^ edust and lead, ana sunary obnirvations were jade in cooperstlonwith . "n rsrT. 0, l, icier, 1. H. Fl:.er, Z. Gorzaa, . J. Joyce, H. D. Cray, ,2u ftreber.` f K. millpl, 4. ii. Cordon, b. L. Connalr, II. V. Ully, J. ZLsocrll, X. I. Joo Cchuoate, and Dr. R. D. Joinston. exposures under consideration are incidental to tne production of brake ntH)n| and clutch racings. 1.1* brake linings ans extruded dutch facials eee-', asbestos, rubber, and oilier lagreoibnu but no leau or laei cofounds...-tbe ' 7*oeen dutch lacings contain (Obentos, tr*:s alre, rubber auu otLar ingredients, Klneludlag litharge or its reaction proauett. Tin 1inished material contains lead Epompouads corresponding to apfiroxinately l.p,C ol laid. '**' jjcoQclfrlons and Suggestions . '. . : (a) The gasoline vapors in . tbe csisaat uepurt-uent appear to wit further.: _ : attention (p. *). ' . 1" *t * t , i. ' (b) Zt appears desirable for tbe operator in the casern departoent to use. - fi; an approved rocplratcr nolle oaptyl:.* llu*rge into tbs olxtr, end that ; ... accumulations of dust should be rjvwj puriuaictfliy irok Um horisoctal surfaces In the vicinity by a vulujo ci.eiiiiu.-r (p. i), .i,, (c) The sltUAtion in U* laboratory probably ic r.ut serious but eight ucrit . the precaution of using a ret pirntor anc u vacuus cleaner (p. b). ' (d) Thu Uuit near tne unslndin* opera:lw. in cue csoent house approach, or exceotU. the por.lcilble iL.ii ;cid t..a uco of u respirator is ; ' suggostod (Test #1). / {) The lean concentration founa j.vcr t:.c iccaUic grinding clutch facials to thickness is un*zpe.:tedl;' riootlon li rectxiaonaed for . further observation (Tort so). (f) The lead concentration near the gxoovo cU--i.:ia* oporauon exceeded the ' permissible Unit, and the in. uiilaclon of un exhausted table grating ' is suggested. i . . (g) Both the uuut c.id the leu; exceed tl* pt,r ilssible limit.:, u.. are neodnd (Test #7). 'll up suru;luc,|iprutiw.. gre-.tly i.. .irtiw- or ventilation (h) Substitution of vocuuu cl>.z:.i. .:>i . tr jo; :or rr-.su.i.-i* ueoris iron s trill preo.' table U * -Cr.v . ud \7 i.: v:,. ,(i^ i<v; sllttlrg. ll tn U. **/. - fact that tiic voi.jK- 'ilr uruv Changes are j^cttr.U'j (? f.t). i m l . /. u .. t ii. ;,it. uf the 1.. a.u.',uste Sturtle# ftp Inland Ufa. Ctrliicc fcjjttj) con line*! UC4 fti reapir*vr/ by U-c j*u tie ICATeuiantn Ll*2- - '. ftf tie bract ) 1 ~l`-c CMfOuj I 4(t/c u> o* oucUaila, To* UM el napiravocr .uric* t_- trl#;' porioa r. wa alxcr la di*cb*r**<i clao U inai.aied (T*it vlf) *, 3^lnr.;. .-< - - libtftM ;, . ,4 ; ' . ; ^` ifc* |poal' 'I' 'f " a . Vi Jb* literature re 1*tin*: to occupational disaaaaa eou taint nry nian(ua vo Lb* feta of t"kjnnj ajuticlv* aaba&u ot uL*bve*. PuibU hullb Bulletin /%!, F13Lud7 of Aaoebtobie in Um Arbacu* Tt^Un Inborny*1! International Labour VfTV"Ji aopficitat to OccupaUjQ aoJ baalti, dated Jtuvy 13ifl aad vtlUad rAjb*ato*"j Public Kealtii Ecpcrta, dovanoer Zl, *ai, "A 2u*$r oi Duet Control LeUods U Air Asbeito* faliricaiU^ Flmaf; mad Sahara A Libaean, Aamricma y > Journal of Public health. Airct lila, *13 &veta:la*, aaj U wauooad prculcenUy jj thim csoaecUoo. hyl*jr*t,U Industrial Jediclne, Oetouer iJJ'J, quotas Ucr^ itvI uooard In rtiacuaaim 90 claim, wcriuo to ubeitcju, wrought a^alnal t ; fin formerly oanufaoUtrln* urwk iini-V.' in ieiaitnuretic. TaelVi pOJlU?* ' 'rllip-- wrc udrud tho ixiearasc* carrier arronieU cu^pnaaatioo or mLU- garnet 1a uccm of 164,003 for tb* tuln. luirty of ine itInina; arrecty-eijlit to trial. Taere appear* to bo uaee aiffaranc* of opinion raforulom Um lUpuMi4 especially in vlr ox Um re ecaU nation*, oi ua taelv* uoniad > "coupon**tiocr mm mon* al^it or run* j-turi J'-*r Um cviutlx of Um t.ppaure. 1* 1* cadjar La tn3* complicated affair*, uoTl Mi be xjji UUIonac* of T'r.i ^ ^oyiEian re^ir-uLn^ *x pemlsalbla licit for tabasco: duct. It appears proper* *; ^Mrw( to accept in* f iniiini* of Siyar* a Dr** (A**ric*a Journal oi Public * liarcb 13C3, p. ZJi*E 14), btici lndicmu t pcrcimilbl* licit of 6,OOOfOOCr gportlclM per luLU foot oi air. Tr<,- statci "1%:idVe ciinirml mad ro*ct*ooo- fptptrlc rrldanc* of itbwtuU U otaerveo in jcpot>d per-'on* altar f to U ;tn gif mor* 1a mipot^re* unceedit* 6 .bUlloc parti cl os per cubic fool of mirta mod fj( *jy*n vbatf if abbertoe duct cwooeanratioac In Um air bnatbed are 1t*pt Sciod 6 a.p*p.c.f.r ocv ctMi ox unbuktoelc ill not appeal-.1* Further, it umj i* prudent to iLtrfUM *ux*bjUaJ diltiacUonm twtweeo Ict^ fiirej, abort fibrtc, ,,aCd particioa too *Lert to be ciucifleo *i fiurab* , f** . Cifct: 'About ten jrsiipj, ue Pibiic rttalUi c~irvlce tvnuucUHl a:, lovtjitljation in a unrje atora^e setter/ plant _nd cejtioudly toe 1.6 -ulli^ran per 13 cubic rJMUn of air : U* p-miiiribl* iLnli :o. .eon. l recent rur<mr, lovoImo*; air r'tnata in 9 plan'a UU tu Jic-- ^ixejLutior. c* app-oxL.lively 730 n*nF li iot*rpr*Lei to :gn. Lr- t.-v- prcriouc ce&cluaicn jtjj to -aulc.te Uitt Ue Halt of ip la repaired tc avoid Hoarl7 plunblna'', HeCuaaion of t:M natter ba) , ^QCCvated Umi ''early pluebiLo" -wj not be very nerfuua. Uti^wrUtfilaas, It sppeo prodeot for laa_i cunc ant rati ink U, be MiiLaiiuij Leloa UimI it--it io far aa fWu- ir. k i*1 i m m - - 'f to cblorliut* aoironta aid coal-tar lydr^ca bun*, it appear* Um; 'itfir. ftrcitttt Studies P,t laiana tiff. Dinaioc. ralu.ie' (Lurvau of minis bulletin JW7e)........ *. duruuu atutod thut mu villi on . jtxploslMtar hart show conc*ntrtlJar i *ix**o o. the iluuuable Halt la certain , locations ti cert-in Uses in ut uspurwm. Ha further stated that, con centrations approximating 30 of tr* explosive -Lilt art quite cannon. Tht gas oline used la acre voiatllt this the grauet ,,eacraHy uaployod for automobile fool. Tht non in the rroo complained shen the aoora and windows rert dosed, to slisilste viator conditions, for shout lb uiautti in Test 01. Jr. fXo.tr stattd that tha :r natter eoulu bo given further attention to locate the principal sources of the . vapors (there appear to be several) ana to Investigate the possibility of using t less voiatiXe solvent. r:- ` jtlsccllanow I.tw Several additional situations vere ot-trvel ana discussed. ' V. r^.. * . The air exhausted .'ram the finicking epen-tisne on broke iiairiga and clutch ' facings is passed through cyclo;* separators uo the roof, is i ccunon with cyclones, such of the finer eatoriaX escapee. At tines the fine dust is blow bock into tt* factory via the windows in the monitor. Jessr*. Connsir and Cordon stated that the accumulation L the bin under the larger cyclone is re* bowed and begged three times per aay, it times the dust from the pporatiaa My enter the aonitor windows. The accoauuaUoa in the bln has a *, tendency to catch fire and Holder, i fire hose is kept unreeled and in road* fthass at. all tines. The aaterial does not tot reauily, and it is difficult to the firat. Hr. Connair stated that the cyclones nsy be replaced by . gcfanelble or American filter vet systems, Presumably the vendors of the equip-' pent will be duly Turned of tho fact that Ume dust uoes oof vet very readily. Lend is ooe of the ingredients in the cement uced in tne clutch facings. *' v b-. Philllpd stated that three times eedv o*jr a 500 hog is cuiptied into a nixer. MC;nte oi tue brevity and infrequency of tne operation, no test of the air was. .}, sde. A couple of duct from an angle iron supporting the stairway contained UU7* of lead. 55- j Pertain experimental compositions ere finished in tr.c xeooratoiy. The operation ^infrequent, and the alcove in uaich i*. is conducted is isolated, during the PperatioA, froa the remainder of the lao^retary ey e curtain. Uo specimens were WBliable for grinding oo ov*soer 1st u:.: no teit of u* air cos wads, bosever, g'.'assple of dust from the lamp shade conuimod 5.61 lead. KV'*1:" . itr. Schuaete inquired about wood flour. He ctatu um.t it is used in soac of thr Bdopouods, that the botenes are aixau frequently, and that Urn men appear to iqhale same of the cust. e aro not .;ell iniorue-, aooul the effocu of * muring pood dust, ioodworking has been a major in sultry, uk. poue- tools nave been usee for-neny 7ears. It appears, however, tr-t tme. *itur Ui not been investigated thoroughly. Or* Aueluide hoes haitn vl^ut trial .yg.cr.c, je.. Ycr* Department of Uhor, July ano August 1356) has roccivvu t.u.- litorutore bvuring ou tin subject, notes 14 referer.ee. The rvle. ir. .ic-tot v~t isou wor<cere nave been *hove the average lid #'JKtptlblhtXy VO w#0,lC4tit) pCiC^dw*)lt| tUOiTCUloill| i )fcri*P other respiratory iisooses. T.vi it-tuj oj t .*- ~uod uust as a causative &Sfter is in>.lcsted not proven, -' sum duct end loud suuptes were coUucMd of Uri*nburu-Sulth : SVPfbtug,. - yorxal balcohol ic*. tlKr cr.v.upping lijuii in wuc.. Uitoncs* Ti A iir ttrdoM studios Pm* p* Inland dfg. Divilla# nflimti Mr* jvu tf-nwHn.-' *a k t*c^il3ut> uojcrlaea in Public health Bulletin #17. Load was milled cclorUetricaliy V 3 proci^un sjplqyiag dl^heeylthiocarboso.ie. leather ^otb days were clear with temperatures varying between approximately 30 and approximately 5QPf.' The windows la the monitor* oi the factory were partly f TEST ^Eiia^vo^EiiJ (carroctod fur interrupCoMnt Depnrtcaat. 10W38. tians 0 .dilutes) ;. . ' rpq ai taken in the aielowoy between tho supports froa -bid asbestos Sard ii nn^^t loo oord than pacsss tarough tanks containing cement, than tferouefe drying towers aad eventually is u*uo into dutch facings. Quit escapes |jrlllb]y fro# thi cords durlug the unwinding process. V* un lalorsod that ordinarily ton oca work in toe rooa, vnich ii quit* largo. One appoarwd to ppmi -u>k of hi t.i -- in tlx: location aompicu, and wro otnera won working jarty. * * ; jj^r^lnltly prior to the toit too doori ana suae of too windows swrw open. At ;* I par suggestion, Jr. Gorman arranged to have them dosod in order to sl.silate * jjr yriotar conditions. The fan in the'cupola was running, and thi iouvwrs la tho * J*U were open. Alter about 13 minutes the men ; the cxtrualng machine, wnd tha pm oo tho platform obj.ictod to tho gasoline vapor, ana tbo time of tho tost was fborteoed. it 0o cement ttslS coapounuad, on the platform ov.-r location sampled, during ths Alas covarwd tha tosu. The tost Indicates 13,000,000 particles of dust per cubic foot of air. Evan if Allowance if aado for tho fact that tho operator doao not spend all of his time eaoog tho cords, ana perhaps for the .act tnat the winaows wore closed (altnough they no doubt will be closed during the cold iveatharj, the concentration found approaches, or probably exceeds, the per dsrible Halt, because of sise and shape of the installation, the position of tho operator, and the uecossity of accessibility, it oocs not appear sxpeoten:. tj install vwjuiating oquipsuit. fwrhspo ths operator could bo persuaded to use a respirator, a*, Ascot part of the .tins. TE3. #2 Ahb^TQb ;. Ceaent Deportment^ l'j/il/12. 2:06 to ,,:10 The m?l was takm st the shoulder of one of tie- men blooding brake ltn*n| iChanpion sixers ore located near too wetter!/ wall of the rooc (the sane that was involved is Test #1) and ar Uit- is bleu the asbestos mixture [nee Test #12) with psoline, ruobor. etc. 7--- ms stoi (ana other iry in^re* UobU) is reewivod lu boxes conv.lnlni L'./H, 7/**.. t\ 'lu.j>cd into tha CUapioc aixors. Canoline (e rt-l-itiveiy vol-.Lil^ ynuj _r^i r-.U/ji- arc uddou. The r I# tbcfi covered with a woodoe tovor on', por.il ita to run until the blending has *"" accomplished. About 4 ulnutes is re,oir*vi ic thargs twr, nixers. Tha esespe sir raoe Studies Page 0i Inland Uff. t&visua' lr*. i4du*t,` when the boxes are It rtry aowieeefcie bus elau t&ltt brief . |t^UH the gasoline is added La^ediately aiterwaro. There is c noticeable ' ' escape of gasoline vapor both auring txd soliumin* ttt aaaltlen. The covers do pot fit tightly. .batches were uixed,anJ the floor was swept daring vs* tine covered by the t *'. Ooe of tte too operators eore v respirator while uuepln asbestos but eot fettle weeplni. , . . .. doors end eooe of the windows were open during the test. . jjhs test iadloete* ,500,000 particles of dust per cubic foot of air. */.* . . Tffirs, JggfigTgg ' Chamfering ends of brake linings. Bldg. 11. Dept. 16. 10/52/69* 5x55 to 4x05 ;tr Jjjit see taken at the shoulder of the operator of the vertloal grinding l sh4 for the purpose. The wheel 1s hoooed end connected to * fen. the Sissv of. air-flow through the opening In the hood varied free 400 to 600 feet per Salaate. The aoreal rete of production ie epproriuetely 640 piecee per hour, end fthe operator sipreHnds1 about 4 out of 6 hours at this aachine. .. t <** test indicates 1,500,000 particles of oust per cubic foot of air. ESTfi. A561TOS rinistoAg brake lining strips to thickness. >v Bldg. 11. Dept. 16. 1G/31/59. axOd to 4x22 1 ftbe sanple was taken at the shoulder of a girl operating tne escnlnc which grinds oth sides of the broxa lining stripe eLaultaneooely. Thu uaeMn* Is enclosed, end the housing la connected to a ventilating fan. Tuerc cws no noticeable frir**p* of duet. Is understand that the nachine is in use about three hours in * jajech shift. JJbe slitter (Test #7) is locetod nearby. It was In operation ooiy two ulnatee of the tlM covered ty the test, but nay have contributed sojevhat tu tie aunt count, fbe.strips delivered frao the slitter to the grinuer are souenhat dusty. ss*.* . P" test indiestes 5,0)0,000 particle* o: dust pc.* cubic foot ol air. ' -' . tE^T #6, ASBES705 and LEAD finiwning clutch facing rings to thiuovss. Bldg. 11. Dept. 16. ll/i/59. 6x20 to 6x3 - 9x12 to 9x25 saeple was taken at the shoulder of Uto inspector eorking et the outlet easterly) end of the machine (There *es a uraft ol approxiaately 50 feat per -ir.ut :rcu vast tc oust. %r-: Tut aecMne l: slallor to the or.e invoivi.*u .<# 7cl*. #4. It ir tnclotod,and the bousing Is connected to o venUli.tlng fan. In*.*r .* xio vielbiw <>ecapc ol dust. $be aechliw Is Is ucj only port of Uw. the zkir toxica* Studied Pt| #6 laloas ilfg. Uivisiac 'four *>+*] and \wq atri voro lurking in u.- aisle-wy cxtenalh..; about 20 foot j*v 'Of .the nochlno. '' ' * Ifb* brain Ur>la( ilut^r and lu ^tnuer used tor tU.- a<4* or liw eluub ttcla^t &** not In uee during the tiae covereu rjr th* tort. &'v Th* 'tost inaicates 1,000,000 particlae vf uwn; pur cubic foot am 0*9 -tilligrass OT ictd per 10 cubic uutors oi air. Tnii a_uurr. o: *caa, cowiaereu in conjunc tion with ti* direction of the draft, sug..*-ts uiat u* veatilatioo of Uu .incJw* lpo m/ not b oaequatc. Then 1: * possibility* n-wever, bust it a*}' rtprount Cl*ioo*i-u fron the surface of tne racing* a* tfccy tu* landlad to lio? IntMoTor* - TEST j>6. ASHSOTOf und ILAb Cleaning groove.- In clutch lacing. Blag. 11. Dept. 16. 11/1/3J 4:34 to 9:01 {a* m taken *t tn* snoulutr ol tre gi.r) Kiulng tue groove*. in clutch facing* to **uu of * file. Sho era* iocn*u ir. u\t airier/to **ct ol' th* grinder Involved In Test #5. The grinder, however, tan not user- during tins test. The brake HMag slitter ana grimier uer not m .use. Tne orill presses across the Aisle er* in operation. The oporator of one of the urili presses usor an air Jet jjeriodicolly and aay hive contributes to tnc u-st anu ieiu io-v* in this test. Vo understand that this is a full tiae Job, throe s;u:t*. '' ,1 dfaft of appruxinately SO feet per mr^it.* ua.- moving :ro- cast to west. ' ` V* ;The test indicates 4,d00,000 parti dec --it pc-.' cubic loot of air and S.2 uilli< graaj of lead per 10 cub.*.* '*ters of air. Talc amount uf uuut approaches Uw peroisslble linit, end the lead exceeds tiie por-ussible Unit. Perhaps the filing operations cculd be prri'uruuti over a snail grating set in the top of the table. The grating oould he connected to the eunaust fan via suitable duct work. ;; ' . TEST #7, AJuiUTOS ami LnlJ "Flap aaaaing" iasiuc enu uut.lu* oi^cs oi cl*ten facings. i ' big. 11. ispt. 1C. 1*/^/*0 9:26 to 9**0 . . The aeople tris taken at th* nhuolder o: :.<? jptrjtsr o. tn* _a.sid.ne located near ' the end of tbo alsleu*/ uentioneu in connection v.it:. te- u #J, #C, ana 8. jTdoubl* endow polishing lathe is equipped -Iti. tuec-ls next by attaching strips dfiaesiy cloth to a suitable hub. The tort ':lap bonding" is on apt aescriptiun Cfvtbe operation and equipment. 7Ur lutwc is c^uippc* with the Cuxtwjary snoot Mrtal hoods. Tiw hood over the t'iioui uio- :tr trio inside to ,c* nod been opened to per-iit access. The flap* act a ccfttrifugu* funs and uvereitsLs the intended ji^oo oT tier exhaust cucts. Ttic oper-twr* i ciut:u.:ig 1 bloen tightly against ityP-boto and legs. There is a very notU'.-abic -.uc/ipc of Uuat. fe understand that too naubUe U in use U>yut five . pur, shift. b* test indlckus partlcloc *: *.ust p*.r i-.nc *uot wnu 20.6 uilligraus w -load per 10 cubic .vourru oi air. TUusu cixice/itrati.^nu i^-o eioutiy in excess of StydUs pm #7 Inl&cxi JT. OlYi^lso .' ' \ tJ permissible limits. Ferhapi Urn ed$: or the facings could be finished la om other Manor* Ferhspa a vita mecnanieul feed could be encloses nore conpletely and ventilated adequately* ' *. ' TKT ffl. ir.ti ISA*. - DMllln; ClUtCh feClhJC. Bld. U. bept. 16. 11/1/93* 10:24 to lo:6e Tt* sample eai taken at tho shoulder o; tee firl operating e drill presi near the easterly end or the aisleway. k duct terminal is located about 6" frou the drill end has an inward flow of approximately WO feet per alnute* The *eeerel draft in the vicinity wei about 60 fuel per minute eait tc weot. 'if.-. ' So understand that thia ia a full-time Job. In air jet is uaed periodically for rtmovln* chips end a.tt irom the table of the machine. It oay be responsible for much of the contaeinatlon found. The test Indicate! 7,000,000 particle* of au*i per cubic foot end .7 aillixraa* of load per 10 cubic ueterJ oj elr. Perhaps a vacuum cleaner could be substituted for the air jot. TEST 09. ASBESTOS Slitting brake lining slats .r.to strip*. i i bldfi. U. Oept. 1' U/l/ab. llioc to ^lsj>S. ' Jhe sample m* taken at the left shoulder ui tne operator ol the aschine wuich allts the slab* of brake lining eaterial (20" x id") into strips (1~V4 x IS'). This is accomplished by a sane of tnin grinding wncols aounted on a abaft. The iM*h<*tT is enclosed and connected to an exhaust fan via two terminals. One terminal is located st the outlet of the machine arw the other at the inlet. The inlet Is a Slot l-l/8"X M". the terminal 1* located underneath ana produce! an inward flow of approximately 1000 feet per minute turougn the slot when no ' Slab is in place. The slab, however* interferes witu the floe through the upper part of the alot, ana a very noticeable escape of Jolt occur* each tine a slab engages the wheels. Two suggestions may U offered: - (s) Inet the uuct work be dlvidcu o iu: port oi too ventilation is ^ taken from the upper pert a: ir.t machine. (b) k toft rubber strip be ir.staliod in U# upper part o: the riot so it fills turn space abov slat. During th* test then t.ss a draft of approximately 60 J'eot per minute from east to mast* fh* tl.ickr.esi gr.:. *<*r -as in op< n.v s*, ut pr-joabjy <iis n.t con> tribute importcn'.ly vt uustinots ir jfcrfionc Studies Patfe #6 la Wad df*. blvlaioc e ax* Informed that %!.- ancr.lne ^eac.uily is mu about S nouru per solit. S# further understand th:.t operators iy iluo run the. cLuaferln* muenine (Test #5) and tho t* Ust >13). ' iJ a.; average oxpoiure eumevfut Uin axetss ot toe purmlrsU.c uinit. jlha ti; iaaicate* Ef,COO, X>D p^rtui_t o! uui.t per ejoic foot o: air. # **V. . .- fm2,^ Jlriilir<iS> Sa?lne oraxu lisin* strips to l*nt!u I'Bldj. 11. Dept. 16. 11/VS8* It.**! to i:SO, minus la .saute- Interruption. 7he Maple ms taken ut the sboulder o. the operator ot Ue machine, .hid'. Is )a>qmi as a saw. Ho; ever, U cutting tool actually Is a thin obraslvo ohoel. There ru ao aeasurablc druft io the vi.cix.iv 3t tn tu* of the test. .v,, ^' i.rhjn* it equipped with exhaust mmctc ul'.L terminals In the tabic uwar the ** * * '! the thldaooaa grtnacr (Test #4) wo* in ome uu nay h?7i contributed (wmcvbat to the dust found. Therv ms, horeves, a vltiolu cucupc of duct ot saokc froa thp. lOee^t" strips, as tmay Wave the *rlnucr, are somewhat dusty. , ,, ,. . e art infonsod that the wichln* Is used about 2 hours per shift. ' " :: k ;' * The tdst indicator ,000,000 particli* o; uust pir cubic foot of air. r* ,* . . % 'JW _ V . TEST #11. ASBESTOS ana LEAD Grinding outer odges o:' dutch facing dlucs. Bldg. 11. Gcpt. 1C. sl/l/Jd* ltlO o SirJO . ' .woe mad of a double ended stand is used far the pu.'pj^t. and the bousin* ir connected to un examua* fan. f. . / Tbs machine Is In uue only part oi tic tl;c. Iho wj.oel is enclosed There m u draft o: approximately SC :.. t p.-*: smut* oa.t w ..cat. :?he snnplc *as txkcn :.t the op-.r.tor's alw.*.cr. The twt indic*U.ii 1,600,000 pnrtlcl-.-t. c: ..uut pvi cubic loot and 0.9 milli^raas -of lead per 10 cubic ueturs of sir. -IE7 gi, .. dlxlnf dry Wrealw.t. v Uux-; .lutr* vcupoiiv-lun. . Basement of Oi.'ice Builulna. >.a.. mjU.- to `;26 Tae ashes tea and. oth-.r dry lnjredUnt.. ai. 01..:,^^. ... u Julr.1 itiw u-*or u.;rt 'transportation to ti. Cuwc-nt ucpi.-t . i.. (w. . *L). .iTha ln4ptdlents uru -cl&*.* and tA.r. >j. t.. .. tr>MUiwU ... tn. : iuor auov.. *.nu xIju .This location is endv.:od, anu a.'. ..A..ii;t fu. u.*. k.ii^ itatailed n. tnt j*ool. Toe Mr Urdaue Studief Fage Inland .iff. t/Wl^on iSir dll be edi. tted Larough opening: .:. xu.-cr part of the partition. Jt jappoor* prudent for tlx* *en to cant;;..;.- thi ::t o: respirators alter the 1natal- ,'laUoa of the ion. The encloeurt u: t^c .ay be expectou to prevent too rtpread of dutt to other porta of ti.v b.iuai;.f i~i'. probably clii not eo&rtltuic sufficient protoctioo lor tiio sen Titian ti*c .nciosurc, Cr. Schist to stated that the Fairfield -ixer in the base, .-ant hanoles 2 ootcl^r. during the first shift ana une bate.. ,,u.ing tne -econo. To# contacts of the uixer are caption, via a gated opening in tU bettcu, into boxes noidinf ISO# each. About ZO i. ru,uireU lor ui* moraine eacu botch.. On the occasion of the tost, tr.o --ppiy m regular boxes was inaao>]unte, and about half of the natch sas dlsunargcu .r.to a steel tote box an trans: orud to flbro carbons. This extra handling -nci-cuncd tno concentration of oust. Two oan ware discharging the auutr. Ont vu_ using a respirator. The tco wort together and appear to o* exposed to \r.: *oj: concentration o; dust. In order to pt 100 pounds of tne alxture into tn t'.xct, i*. is neewssaxy for the sen to pack it with their bunds. This bring: tauir faces into close proil.il ty altn the aoorco of the dust* A. .Ventilating duct has beon Installed move the opening in the alxer, and ra-iovef part of the dust. The terminal Is 0" x iO", and the rate of air flow varied froa tfO to 400 feet per xinute. She lamediate vicinity of the alxer i- used* fur storage. Toe nearest non regularly employed la the vicinity cere about 36 feet angy. Inauatrial trucks raxs frequently through the alalet^y beside toe alxer. sS- draft ot the tlao of the test . was variabl* in rate one direction. The'test indicates 23,000,U00 particles of oust por cubic foot of air. Because of the intermittent nature of the exposure, tnis does not appear to be very serious. It Is prudent, of course, for the sen to use respirators. It also la desirable . that the dust should not be permitted to accxailite too extensively, especially in the elslewty where it would be disturbed and distributed ty the trucks.