Document nmwVJMZNDXjjQja3YoJyQYrY1

PiTTstJU*G-* Pa. 1**1? u/l947 t*-aof*.ouua a J'lsnt of JuJuuOaotU-Lo Car^nittoa *'* Jb'ufvlOieitin* 7b* Vroila Lu*/7 i.ul J uvactLfcutioo Tor AWiW< TfiXtLL* Xugtltui** Of Juo, 194? * f * * J u<U!'U Tbi# pleat li *'e* i 0:;t lot! J la tbo nr.cti.1 report. Tie f dujliatw ia coIujuj J of 7*.bl* 1 r.o;r fc* compart? riUi ^li w.cept rLtr.'-o C end I. Ther* le 4 c ;r. i ton tl; bihr ijsltpoie i- til oporatiJr.P io pit* of tb ft cl Ut* L ii.'iu t--.i of io.nc/ r-i t ueen typnuilci'lor Jj<t c on t r 1 t^ui p>* a l. Tt (toeV-couit dot* do Inflect tti&foclory ecf.trol :>( 'ual lb vtrlofi opxrtlont. euapoct tit '.! uAjor ctuee of in* ;voor JllsI cur.ditiocc renulli fro* tb precl.c* of retorulni tlr froo lie tt lo-j*o to ibe roo*. Till ooula b* ,ai*eLl^tt0 ( dltcooeioa of rclrvbiotian, 13, **o*r*i report) // '>/& 7xtU* on Plant of John*-*'. oUl# Co rp., i-.17.5l ia.n t i n $ t.*. 'V.Uilnarj i>j#t Inr., ti* t Un for l*U*toi icUVjU` of Juo, 1?47. fro* tnU t')innt at* not UcluJws ia tr* Ub-Utlcn of uh^. r^Ut tor e*nU I ,rvercl report) Uc*us tr* klt,;lo c*rt* .-jIj c.^t to cMp4 ratio aad Uo jcatrol of (Suit to tbio J*p*rtoaV it not rood, 44 JoJf*d ty duit co 0*01* 0bsrT4tlon# f duct coru-.octloo* on I'M tin ctrC 1 " * icCicu t* *c crllokl liauat ctpoeit/ of Off 4,000 to 5,000 cf*. Xto*t control crra;**ocVc la 12* cv Itltla cards cl^er^e fro* th* N#t pmctlciA Hi Lad on pagt '9 (^a#rAl report) i to ,2 ,t> *7 Tbe bc*l coo51 ration of a*ul Z^r Into cart &uld 0 ^rroasl oot it. tho Dtt>#orii. ft***4 Of tbo lx*-3LaT 35*0**11 ration . rnnial Jfa tbo ttaarajl x;rt 7# J^e fcacJgcaiLaafeM f-*i r ^hcna^ifcutfjgBsSUgBCSttra d>on . La tomcats cc ;j 13 *.r* pcriluect. *? t!v* z?*. '-llrt- trnt tn* aifici^sc^ of L*jri*p .;^>t .ouo In luv.'-tU t ^erait .* rc l tcj U t 1 on f Air fro* it Uaci Vo U.a > or 4 root 44 it t:.o pr*.ctlra. 7 4 to not rula cut Ifla pj44lti-.il/ U..V oife^ucrcA ecu u* .-vlffKi tJv.l *511 rail U-^4 rccoTtry of hast f i^raawr.tui itorab/ itiiiui Tbo icclfract of *.cbo*t<>f-ia It VMa plant In cuu-^r/.Li* to only ona tear ^lot (i), fta cedlcai prcblec ri' stCsRJolt <.c cvspiicotcd In ibi# jXcot V/ VV* f*ct tt>V wrtiri baa* bran naplojart la *ntbraclta coal clccft *od * orlJaoco of .jiLbroc--oliicoalj, 7r. %mil icUvlt; rofarr+i v 03 pc$ 14 *buld La 1/ raluabl* ia ttoa* clrcusr Uac9. //'> C'-'- ^, i. C . L . COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh 13. Pa. J.4I7 U, 1947 ttesoreadtui on Float of Johas-JUaYllle Corporation &uppl*&atlng The General Report Troll* ins 1*7 kwt lutestifcotioa for 4bsstos Textile Institute* Of Jua*, 1947 lustiness This plant la designated J la the iccrtl ropoct. Tie suaoery - of dustiness la coluaa J of TVols 1 07 be ceapcrod *ith all except plant* C and I. T>oro Is a consistently higher dustlaeaa la all operation* la spite of the feet that ler^e ftu**e of xocsy bare seen oxpeoiied for d'ist control eculpneat- The duet count date do indicate eetlsf&clory control of -ust la *e*vic<: operatlons. ** suspect that the aajor cause of the poor dust conditions results froe the practice of returning sir froa the b* bouse to the *or rooe. This shoula he latee tinted (see discussion of reel reflation, pare l?f general report). JHM33045 2. Aeororsadu* on float of Jofaa*~2*artll Corp. , SupplaaantiAjj tho Conor*! geoort *^rt!laloary uat lores tig* ticn for Asbestos Textli* laatituto* of Juno, 1947. P*t CcTLtol yraetlggo Cota fro* this plant are not Included In tbo tabulation of axheust nUc for cards (p*t report) becauoe the sis*!* esrda eouLt not b* coopsrsblo sad tbo control of dust- la this dopartaoat la not food, as judged ^7 dust counts* Obsecration* of duet concoction* on ftitle cards Indicate an original sxhaust capacity of ooor 4,030 to 5*500 cfa* fiost control arraageoocta la tbo r.ov fhitlo card* dirorgs from tea boot practices listed oe page 9 (gsasn*! report) a* to Itsas 2,?,6 usd 7. Tbo boot combination of exhaust for this card oottld bo vor'ssd out In tis engineering chases of tbo long-tan tarestigstlon proposed la the c*c*rl report (too pa** 27, I end A). deolrculatloa of sir fros chut collectors has bean touched upon above* Tha coeaeat# on pr^s 15 are pertinent. re act trlirrc that the efficiency of a burlap duat jua la sieves to to porslt .rcircula tion of air fro* it fcecic to the eorlrooc xo la tto pretest practice. Ta to not rule out tea ^osalbl^lty twut A^icfuarde cau b* jev.'ted that *111 >.rait tea recovery of best represented thereby* Sadleal The lcci:'cac of esbestufti* Is tel* plant is eoeoarsbla to only one etfear slant (l) The nodical problec of elugnoats la costalcjted In tbl pleat tv tie-fact tret ;**.njr acnears hare boon saployad Is nntr. recite coal sines and som shoo evidence of kathmco-elllecaLa. The canal (.stliliy referred to on p&ga 13 should b* especially reliable la thase circunetaneea. JHH330^18 w* ,Jo^acu Heed fn/iccar COPY INOUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh is. Pa. July H* 1917 loaoraadua oa 0*5 Aobeatoa (iUahtU) Plant or ftnyb--toa-tfiobattaa, Inc. Supplwsoating Tha Qwral Raoort Proliainary Coat IaYortigation for Aebvatoa Taztila laatitut** Of Jono, 1947 Dagtlnaae This plant la daalgnated 1 la tha Saoaral. Report* Tha rant* of coacoatratloo 11atad la Coition A, Table 1, tu fixvd "by an eTanlaatloof tha dost coast data, of rocvot yaaro la coapany fllaa vitb a ilttla t/?bt ClTa to oar oo taka at tha tlo of oar rlait. Past count data for tha preparation dapartaaat varo not adequate for vatlaetinc *Tarawa axpoaures. Coot control la enrdlag la equalled by aoraral plant*, bit la batter, vo btllm, la the Cfcarlactoo' plant of thia company. Daatlneaa la vaa-fia* la bollovod to bo tbo Levant la the indaatry* Oar owe daot cotznta *ade oa Kareh 19 are aa follovai JHM33019 Io*or*ara oa 334oboto* (boahola) ?l*nt of (Uybosto*-3UafcatUn. Ir.c., Supploooatln^ tbo GoaoraJ. p*r?art *Prilala&ry ^ust InTooti-- gotioa for iobootoo Toztllo Xootituto,* of Juob, 1947* Suabor Oapcod Xiao 1 10 Uu. 2 6 ties. 5 10 Xtaa. 4 ' *12 Sins. 5 10 lUas. Loeatloa Xiet Count. General olr la flniobcr cord roo ot tobfr-off end of oachlnou % X* 11, 12. 2.4 Slallar to No* 1, but ot scchlncc 6 and 14* Cmo1 air, taxon vbllo walking up and devn aioloc of aotnalne ffoa^s* Goaoral air,'ttkoa vbilo up end dova *ilos of tvlatinr oachlnce. It operator of loos So* It), 4 swchiao cost diotant fro* trl&tora. 2.9 2.0 5*3 2.1 Duat Control Prcctlcoo Xa tbo tabulation eoaeorniag carding zacbiao oxbouat ayatoa tM* plant to tbooa to offset /good rsalt with, tbo loooat rata of oxhaoot. of as/ plant* So**Tr, dustl&ooo la plaat B 1 aatorialljr leor ltb only boat SO per coat trootor air fla (tbo xtrt capacity dl&trtbutoa to auxi liary braaeboa) h&S&L TMj plaat hao booa Included asaon^ tbooo having had a meant x-ray urT/v avon though not oopocloUy syxtoaotic *ltfc rospoot to tlo bacouao of tbo policy of voluntary exoaiaationo. lb# lacldaccu of aabootoal* Indicated by company rocorda ir% *tuollod by on# otbor plant, lot la tbo oaao of tbo lot tor thoro 1* -round ? for donbt ao to tbo accuracy of tbo dlognoala, according to tbo prooont odlcal dime tor. JHf133020 COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh to. Pa. July U, 19X7 aonorondun on Conorml isbosto* and Rubber plant of ftayfeootoa-Baafcattan, Inc* BupplonontlftC Tbs G*norol R*oort "Prallalnary laToati^ation for iaboctoa lentils Institute* Of Juno, 19X7 Pm>Unl Tdls plant lo dsslgsntod la tbs gonoml roport mo B. Tbo soupls# taksc by us *or* mil lowor than on* alllion, bat s Lee* they vor* slngl* ssnolos tad differed considerably froo othor data In company files ee-did not clr than full velgtit In e*tlcetia< tbo avorago range glvea In column b of Tablo 1 (page 5 of general roport). The company* dust count rseord indicate# tho loagaet period of low duetlseoe la tbo Industry* la spito of- tbo span of yoars covered, tbo noaber of individual F dost counts is aoeh too snail to eonstltats an adequate record* BaAag*oat iodic*tad that a re-surrey *ms to be sado aftor certain process ebaogee voro effected* fioworor, it is ear opinion that present concentretipoa aro v*ry JHM33021 2 Xttreada on CMnl Asbostoo sad iubbor flant of Koyb--tos-- Boatsttaa* lac., ap?loooattag tba Goaoml tioport "Prolialaory Zxmt Investigation for iobootes textile Institute* of Juno, 1947* loo &sd -o rsmld advise that orronpeowat* bo sode eltb 3r* fbaA far e tbcreagbly eoapleto carrey without welting for vuch changes* ' 1 liberal eaaber of icopies la each operation la repaired to est&bllsb average flcarea* Sast counts sede by os sc* as follower hunter 1 2 3 4 5 6 7 1 Elapsed Tine (Kins*) Location Cast Count 10 General air near tale-off cad of csrri* 0*2 4 Mchlaes distant from foransa's office. 10 . 10 10 10 10 ton following bla durtn* saaoilfl*. 0.4 In breethinr cone of operator of foster yir.der. (About 1/4 of duct broncho# biased by bobbin.) 0.4 Ceaerei air, talon while following with* la & to 7 foot of operator of rlns istaatacfritfa* 0.5 General sir la rlelnlty of 4 ezhansted loowe (dry)* 0.6 Xa breethlsg moo of operator of ono ip^. 0.3 10 General air* talon while walking ap 0*9 and dovn aisle* of twtefcere. Exhausted* 10 game no ho* 7, bat exhaust syete* stmt 1.6 off. JHH33022 Xanormadua on Ganarml labostoa and Rubbar Plant of ia7fcaotoaManhattan, Inc-, Sopolaasottng too General fiar>ort *?rslialttC7 Dut InTatl$attoa Tar labaatoa Taxtils Inatituta* of Juno, 1947. !Mgt Control Prectleaa It it auanaetad that tfea uaiqua fibar traataant la tha preparation proctta m; do sacfc to rsducs destines# la aebsaqeaat taxtlla oparttioB** Tbo tests doiHtrlbod osdar Iahacsnt Cestlnaan of Stock" (page 26, csnsral report) ould illuainnta this paint wbsn full/ developed. gartlna la tha tabulation of card exhaust rates (pairo 5. canard report) * tMa plant baa, * bailer*, soaeshat battar control than Plant 1 requiring about JO par coat (raster air flo* par mablaa. Ill of the eight good features Hated on pa 9 wars observed on theaa cards. ? ife of the opinion tnat the 2 inch .ucta arranged to exboost tbs spec* betsoan flrwg doffers and oaln eyllcdar 1o r.ot full7 affective due to rapid plugging but ara convinced that tr.o objective la worthwhile. Its plumping la caused ty ineffective dintributloa of planned air flo* which. In tarn, la th* result of sroaa difference# in friction lost batwaea tna f#AH disaster acd larger dianatar branches (rei'errwd ta uadr "Lnct B.ric,* top page 12). rTwlattnr' Thar* la aoaa ladeatlsn fron doat count data of vein* la the ulit- l&C exhaoat ejeteabUt tha data ara fra^aantarj and iseonclualva. 7 mold 112a to see several "on and off* tests and* alternately an oen da/ far con firmation . JHf?3.T023 ^aaoraadoa on Qeooml Aabooto* and Subboc Float of Stybostoe-- ttaabettan, Iac*9 Sttgpleo acting ttia Canoml FreXitriaary tkst InToetigatioa for iabostoo Textile loeiltuto* of Jane, 1917. This gloat la oao of thoao Titbout adequate lofarcotioa as to the Incidence (or abaoaco) of aitbaatoola end eo strongly recocxooc the Ins ti ta ttoo of a syato* Of nodical supervision u lediestod In this section of tho general report* *ho last gars&rapb an page 20 of the <oacel report refera in part to this coopaay. the laforaetloa that could .bo geiaod froo * statis-* tlcel stady of the Inc Id once of eabaatools *a related. to eorxing history la a plant eith this record would bo of Tory vr**t eoluo* f.C.l. tfoneon Hood Sojtaooc .IH3nnno4 COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh Pa. July U, 1947 Xeooraodua on Plant of \ Philadelphia Asbestos Company Sappleasatlng The Caaeral Report Preliminary Oast Inrestigation for Asbestos Tax tile Institute* , % Of June, 1947 ftjptlpgyg This plant is designated as C in the general report, and the das tineas fosurl jed is that colsam of table 1. Tor reasons outlined In the general report, the relttns for preparation are probably not eery fepreseatatlre la cay of tbs plants and only approximate coalerlaons, tcwrefcre, .can te aide* The data for earJlng and searing cor.flra the sbssrratle f.sct of hifft mistiness In this slant. Only one other plant in the rrca? is cooparable to it* Our era dust coon to, which supplement those In the ceapany files * are as followai JHH33025 t 2 Meisoraadu* on Plant of 7hiladlshia Asbestos Company, Sujplsneatlnc tbe went nil assort *Prsllalaery Lust Investigation for inboston Textile institute* of June, 1947. bomber 1 2. j 4 5 Elapsed Time (21ns 9) Location Lust 5 General air near sule splmser located 5.7 nearest to office. Judged that no dost fros enr adfoinlnr deoertaent. 5 it loon So. 94, dry weaving. Judged 14.6 that most dust from eaavlng (although possible contribution from dicker rooa). 5 At high speed* PIS, cards, at delivery 13.0 sod* Exposure of operator. Considsmcls dust contribution from older cards in eftjolnia# rooa. 7 General air In old card rooa. Ineffec 10.4 tive sheet natal canopy hoods over cards* 5 General air sample obtained ehlle vail 6,6 ing up end corn aisles between twisting machines* Punt Control fraction* Control of Oust free the ? 4 & cares cannot be very satisfactory vhll* that froa the oldar card* In uncontrolled. If their oee in to bn eon tinned lantdiaU stspe sheuid bn take* to provide proper enclacuris for Cilia* te exhaust of the ? % 5 cards nil! doubtless jtffec is coon details from 'slber coles, tut for the proeent the following points are to be notau* The existing arrengeaenU clffer from beet practice* listed on p* 9* rfenersl report* es to lteaa 1, 1, 6, 7 and 8. Sspeeisll/ dlsndvacta^eous in the large diameter (S inch) branch duct fren the top of the hous ing In combination ith the car row slot connection to the nmol-;:. 7 'ieoomndoa oo Plant of Pbiladel;fhl& lx bo* to Caap^ny, Supplesentin* the Gaoirol desert *?reliain*r7 Dust laresti*etica for asbestos Textile Institute* of June, 1947. The practice of recirculation of lr Cna the dust colioctor U QUttXtlcakbla slthsuch It nay sopear that less difficulty rill be experienc ed *tth this typo of collector than scan others In use* to order to foil* 7 changes in pressure drop, * staple eater &-tabe should be iesttllrd that rill Indicate this reiue ead can bo frequently beet-red. The greatest seed, la teUi pleat 1* guidance la the coatrol of dust froa eardinc This sonic be coreroa la t4*e general report for the ioo^ tore project* tie prosran cutlloed Qedlgftl The x-rey surrey of tbis pleat node recently showing o&ly 7 to 4 per cent, U la tfcarp contrast to the experience of too# other plint*. Leching infor&atioa as to detail rote history of the eaployees no explana tion cau be offeree BO*f but the discrepancy sooald be iirreetl^.fttad. w.C.I*. *tcnoo Head yueiaeer JHH33027 COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4-400 FIFTH AVENUE Pittsburgh is. Pa. - July 11, 1947 2faoruuitta oa Plant of Zeaebey 4 S ttlson Coapany Supplementing The General Assort Prelininary Uiat Invoet Wt tlon for Asbestos textile Institute* *Jf June, 1947 Cttetineo This plant la dl^natd<i as D in the general report and an ap praisal of its dustiness in sunnarlied la that colossi of T*l-ia 1. for reason* out!load la that report, the value* for the preparation desurtnent are not considered truly representative of any ~ne pleat end, therefore, only approximate comparison* can be ade Oar oa suet count In tee cardln? rooa *** x.Mart.illy lover then tr.oae In the coaoeny1* file* resorted by the lUite in 1944, but >e neve .irio little veirbt, to wr valusa because they are single saaples and therefore sohject w anaoLL;-: limitation*. Ce essuaer: taut no cujor Boni fication* a?e been sale for improved cuet control since that tins. Oa TUHmHOS Cdcor^ofua 93 rlont of Xoaabay i iUttiaoa .3., i.u-;ploanticMi tfco >"Ar\l *i-ort r?r*iiai5*t7 3uat lr.;Ytl*tion :oc aecaabo* Ttxtil* InatUuta* of Juno, 1947. tha rftola v do QOt feol that axlsttag suftt count racordx nr* *c*-.iu*t to . ire 9 rtpreooataitlTe pistura of -iust eoncltU-aa la tfclr plant* T.Ma 5LLl b corrrrct-Ki 'ey a tap* tee coapaoy nan tx*a to train 4 s&n to uo f.hia >orX Oar o*n *ut euunta or* given fcolort ^osbar Ela paad Tiae (Mina.) location JUS* .Count 1 10 In alslaa betveen various spinning 1.0 ` sachinext 6 aacftlaos not la ooerntlcn. + Oauoral air in carela* rooa, at roving 1.2 and of xachiuaa 4,5*6 and 7. About half of all aacbinea chat 'iovn* j 5 Setoeea 2 looas at partition 17 2.6 ( Tmeoan's). i *+ General air In **ve rucaj 3 to 4 looe* 0.9 In operation* Raclrculctiou of air Cron tha (Mil teg boon* near tn clxlag operation* la not good ?r*ctlc, and In tala ctaa tharv 1a obvlooa oppor tunity f :r Ladoga of cast through the Darlas flAterti**.' *l*xat. (000 diacuasion in ^toeral report, 11.) gUsrl To b*T Indicated in labia IX (pag Lt, general report), tUt this coshany h*a ha4 a r*<aot x-ray turvey although it tas not cooplet* becuuxa of Its voluntary chonctar. If tha ;iora extensive 20a survey iwrmn29 1 ob ?l*nt of X*Abgr 4 -iattiuoa Cj*f Cu?rlaatl&,.. the Cnm-L *ort Proti*iosr7 l\iot Inreotigotloa for As Otstos 'ejttiio Iofc.ti.uito* of Jute, 1947. planned for Hayf 19/7 f*owv tl* *** ioeiosr.ce 5$ ladiested 1* to* pant (see 15 tlnnt 5)# aooo exalenntioa sheila te snurht In thn ncrk htstorj or otherwise for the spectacular discrepancy bet*ecs tress 'l.parsc e&d tnose for slants 1, A ad /. J.W.lr* heCSQB'. ;.. dead * li jmo <* i-' tessr I ' COPY INDUSTRIAL- HYGIENE FOUNDATION OF AMERICA. INC. 4AOO FIFTH AVENUE , Pittsburgh 13. Pa. July U, 1947 Meaoraidua oa ?lent of Carolina Asbeotoa Coapuny Supplereating tbs C<mral deport Preliminary fast Investigation for Asbectoo rxtli* Tactl tuts* Or June, 1947 fastlnCS* tsia plant la designated u in tbe general report *nd as i> proijel of Its duetlnes* la sunaeriosd la that column of Table 1* Cr* Terry** Just count date carr7 benvier *slR*r.t ta&n tie single one* esde by u* because they were sore sunerous e.*vi, therefor*, provide * tetter erorarfe* The velace tven La the table, therefore, are feet.vlly weighted by those figures* The figures Indicate that dust control la equal to that In tee %ver*(Ts good* plants of the group. Slight tlfference* between pilots a*oulJ not oe t*xea.too literally, since noraat v*rltlsa* of ;cae tude occur. ' SaaorenUsa on Float of Carolina labaatoa Co, lup^laaootiss 1 tUrort, *?rallnlar7 2u*t larva tlx* tloa for Xataatoo fasti nota* of Juaa, 19x7* tio Tootlia Our own aliirl* -ixurt counts *rt ,<irta taloai Xuo'oar X A X Xlansod fix# Uiln# Operations Dust Count* X It outside doonrajr of oropsmtlca rooa. 0.5 7lai tie Oust froe nearby be* heuas ele~ log in Xr.io direction* Talma to ae**-sur decree of nossible raconUoiaetlon. 6 CananX air around eerda and 6. 0,9 6 CanaraX air ai-rand cards l**,l4 sod 15* W Tloitla cuot avesoa fron .!<?. 14 brer.xer. 5 Ganeral air, clla xaIxIs.; up and doan 2.X aioXaa brtseen ir'.stere* ugt Central Tho oav carding xnmnt a/ate* 1a aoo.-i ajteapt tiJat coaalXarabl* dual ** Tcaptxi^ card* XX ud 15, tt* cau* of vfclch ** ;ia oot est*i>- lish. Tn* afcaat natal vnclosuraa .**7 arantuali/ aoad to b* rarXacad ceo to vaariog of bolaa la *& sides at tsa rla of tsia aoXs e/itnoar, *nd to eroshta* of ooracs. fcafora tbl* taooav* serious initial *top siiouli r.o iatsa to Mk tbs conrtrslaa firtciuliz *laos conoid# mil* tlo alii # rtjlrac to sffact tba cT**n# for oil aoC^i-^a* Mxitcitl fa Tnble fl (pu*;# 14,' aoarai report) * cava VUtwi tola ct^spsny *a aot daring as/ *--c*y surrey, b#ca\i*e of Use f-vot ti c tata*s .!HM3n032 ^aorctoduis oa flaat of Caro lint; to* HuppleBeatlsr tfc r.*nar.I_Sttgoft *?r*ilini*ry 5ot Invootl^Atioa fop -UtutUie Textile ItJCtirato* or 3nu*% 1947* fled Inga up* omiloei* only la * ey. 7>. fuel la tfcat no In^oree- ttaa la 4Yt.LLa.ilo to tie coggr.py is lati&eaca of uoteutouU* It* poaorxs la tr.i# d*ciion <ft tie' r*porl r*i*tt7o t ta* 1*por- U.nc of sbe portodle .novlU-ai excalaatioc saut so la the ii*ht of tie particular pro^rua of tie UU of aorii verotlae, befera Kteco.ls aetclflc i.dvic* en tftla point voaitl aat tc'aaplore *a* practice* end pollcie* of it* f tat* to ** *bet coaLi to tyrm ;at ^iiA ttoa* T>.ia *x- ploeotlPo *eald bo u part of tio aeUical eod of tile lone-tern /.ro/rsn, /.* *itwined la tbo *<i*ral report* 3*C*1* UcAOOf! Sued tojlaeor lUimnoi COPY INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4-400 FIFTH AVENUE Pittsburgh is. Pa. July U, 1947 ^oorcodua os Plant ot Southern asbeetoa Coap*a7 Supplementing The Gensrel assort VrelialaftP7 lust Investigation for lobestoe Textile Institute* Of Juno, 1947 Euotl^ggg this plant 1* deai.gr.uted by the letter f In tho gsr.erel report, acl our pprr;iaal of It* dustiness suscsrlsod In that cclaaic la Table 1. Car own dust counts *0re such lowsr than thane recorded In the enspasy's riles* wince they, however, vers only single csaplse, greet reliance cannot be placed on that* fe bars, therefore, not elhted thee heavily in selecting fl*urea tc represent typical dustineas. The figures indicate that duet control le ecjual to the good* plant of the {roup* Differences that ^7 appear fro* a superficial caparison should not be taken too literally* Thus, there le no reason to .believe that tele ting le any leee onety in thle plant than In any other. lUMoono j 2 Aesorwwlw on ?lcat of Southern iebeatos Co., cupplesaAtiag the Cewere.l *ecort "?rsllain*c7 lost Investigation for Asbestos Taxtlls last!tat*" of Juas, 1947. Our dost counts are givau belovt Sxaiber 1 2 J 4 Slapeed Tl. (31s.) Operation* Cast Count 5 It breathing sene of operator of looms ou 5 end 6. 2r7 eeovieg but 1*7 been ex* boosted (by 2 to 4 inch brunches) and exhaust under -evuro at floor level. 5 It Thenwld loose 15 and 16, end in breathing sono of operator. Danp waving. 0.6' 5 General alr} while veiling up and 0.5 doen 2 aisles botoeen telstlng frame*. Calx 4 eachlnee ninnln*. 5 Geaeral sir, vhiie veiling tip and do*tt 0.5 fclaloo between eoLnninr frnfli:^.------------------- Past Control Practice* ^s coupon? pleas for iontollstloa of new carding sachlnee will afford sa opportunity for las tell* tloa of a first class nodern exhaust ayotas. It also aeons that It sill be of great iaportance to avo specific test data, aasfcllng un to frose accurate specifications for the cost effective and economical exhaust abates far the particular cose of caro tnntoilsd. this Is contemplated as c part of the proposed long tara project. the discussion on dust collectors (page 12) Is pertinent to tils plant. The long-tarn project Includes as one of its earliest objectives tha develops ant of rational apecifleations for either construction or purchase of appropriate dust collectors. JHH33035 Issr' corva<ia* oa ?laat of Seutbara lbato Co., Duppicnantirt** the C*ser*l ftacort *?raliaiR*r7 Caat Ia**atlatioa for JUbaatoa Taxtil* lootltuta* of fun*, 19X7. <wMcl la T* bio XI (pa^a 11, J*aarxl raport) * .un i la tod thin coapaay * aot hating bad eay x-rajr acrrax* bs*ax of tb f*ot that th otate'a flndinga ora avallobL* oaij la 4 na^attra u>. Tho fact la that no inforaatioa la available to th cos^mxj x to Incidence of aabattOAlx* Ibo raaorxa la this Bastion of taa report relative to the Impor tance of the periodic radical exAci^tlss aaat ce viaaed la the ilf.ht of in* parti ca la r pro(.ran of tha Stota of .tarth Carolina. Sefora xt*nair.g xpeetfic aorlct oa this point ** vnud *uci to explore the prxctlcaA aod pollciaa of tha State to saa ehxt *111 be carx*d out rlth tra. TMx ax* aloretlaa vculd be a part -f the aedical eod jf the loa^-torx premia, aa outlined la t> gearal report. S.C.L. Eaoooa Sued o*ia*ar JW?33036 COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh ta. Pa. July U, 1917 *eoracoon cm Float of Tbs Garloc* ?*cscio* Coopeny Suppleaeotlaf Tbs General fisoort "ProLixlnai? i)ust Investigation For arboiiou Testiis Institute* Of June, 1947 Dqstljeag This plant is d#si*sjttd as <5 la tbe gensrol report sad on ap praisal of Its dustiness is suassarlrod la U*t culium of Tolls 1, pa^e 5. The differences between the** values sad those of other ftood plants are, oq the vhols, not significant oca we rate tMf pLust as aver age good.* However, this doe* sot ossa that just control Is oatlrwiy sat isfactory in all respect* as inrilevted In tho general report. Thsrs is an insufficient auaber of oust counts in the conpsny file* to constitut# an adjusts record of dustiness, lorasl variations * rvsuir* a scaber of counts at each operation to provide a useful averse. JHH33Q37 tfesomodua on ?laot of Th Garioci Fscxiag Co*, buppleoenting \hs C-porsjftosort Prolinicsry ^vi*t Iato# tit* tics Tor iebeotos Textile laatltats* 9/ Juno, 1917* Cor ooa ingle dust counts tahsa at tit* tin# of tho visit are given below* habor 1 2 3 l nit^ftins*) ' Operation* lust Counts 5 It operator end of 4 esrdiag sachinss 1-5 ('So*. 1*2*7 and S). 3 General air la elsles of twisting 3.0 asehine*. 5 Oonoral air, slant roc of looses 3.1 coot window# open along the verting aisle. 5 General air is aisles of spinning 1.7 frame*. Dost Ccotrpi Practical Carding dost control is discussed oo pa^os 7 acd 9 of tho gooaral report. Safer*see is aade to the exhaust aystaa 1b this pitot vtica ac complish** as good dust control as alaost all the other good* plants but at axfesost ratas test would oot bo practical for ether northern plants. The dest collectors in cso at this pleat ere of consla*ratio In terest because they Include two type* oot io 00* la aay other plant (lir %at axvl Parana*) because coaaoaly thought to bo impractical* Tust data a *oa these units would therefore bo valuable* JHf?33033 1 aaor*n&A e& flaat of tb tiarlock fading Co., &rpplo**nting tfca Cfrol Aqgrt *ProUatn*r7 Cvat InToetRation for A*ban tea tcxtLLa t&otituto* of Juco, 1917* Sogtnaariog atadla* plaanod far tba long tora UY*&ti..ition of pocticnlor l&iaraat to Uila plant and oatlioad la tba gaoor&l report arat duat control la preparation, twisting and aaoring, and afftclonc7 of ouat collators* *rtlsU. ...____ _................... Io tfca nodical aactioa of tha gaaaral report reference ia oc.de to tha aararal coopaala# ho have no luforaatloa ue to the incidence of poten tial eabeatoala ia thadr plant* Ibia ceapeay ia eaa of tfcoti* and aa t-S#re- fore l*h to underscore hare tha recoaoandatloaa concern!** pariocic x-ray xaaiaatiooa discussed particularly on page* li to 13. 9.C.X* daeaon. Head Engineer JHM33039 COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 44-100 FIFTH AVENUE Pittsburgh io. Pa. JuJLj U, 19X7 Jfenorsruiun on Plant of Onion Asbaetoa i Rubber Co*p&ny Sa??leentin The Smrol ftopory PralLuicarx lust Investigation for Asbestos Textile Institute* Of Juno, 1947 Inotingga This eoapaaj la dee 1*0* ten as S In the goner'll report end an ap praisal of it* dncttaeea la suanarixed in teat coluna of Table 1. There la complete lac* of previous duat count data ic tr coa^ny1 * files, and those tafcen by ua are too fee in ouaber to provide a ood aver age. Ve had a definite impression at the tine of sampling of variedly greater dustiness than the final const result* aboeed, tut ve have no ex planation t tale tine. The results ere aa follows* JHM33Q40 I 2. i^aomcn on PUot of Colon Aabeoto* * flubbor Ce*f siupulanentiog tfc* Cgynl fterer* Preliminary Cant lares tUatlcna Tor asbestos Textlia institute* of Juae, 1947. Sasber 1 2 3 4 5 6 Zlaosod Tine Uine.j Operation* 6 General air in alalas of spinning* trietin* fraae*. *?ust Counts 7.7 4 General air 1a alsloe of Tinders; ease 5.3 non a* ssirmlmt-tslstlr.f* ' 5 On operating platforne of several brake 4*5 llalafl looae* 4 Saar operator of oso broad loos on o*,yo- 6*3 alto aide of roon froa lanpla 3. Open eioao* behind* 5 It corlne and of 4 enclosed carcln# 2.5 aaeMaee* 4 It far end of card roos -*hera risible r < dost escaping froa enclooore at top* 7 _______2______ It bruehlnr end of l ncla rose c*r2. o.z C^ral Pr*c tir.se Tbe carding dost control cyst** ;>,r to be, fund*nt:U.llj', as eff-tctire fcj too arer&ie of other "good* plants. In practice it 1* In ferior sue to operator carelaaecnau La fallLa? to replace portions of ttie t>dour float important la tJi* panel on top detl^nod to reduce tr.a .-tpic# t-rou^t, rftlch the dririas talta pans. Spineln< tod tvistio^ present a prsticn cot oiracily n^n.crebld to other plants bacduee of the 0unitiue co*tlatlon of fUncUor.s lo cne sc hint* jHi!33C4i Wesoraadna o Plant of Union iabeatoa < Kacfcer Co*, Cu.o_'ionanting the gaoort *?raIisiBrj ihiat InToti(Wtlonc for .tstastoa Taxtlie I^atltuU* of Juno, W47. The spray buaidlfler a ployed at eetvia* saehlnea aoaa t:ot fell into either of our categories of *d*a?" or HoC* veoring, and lavras easething to bo daalred in the ray of laororod siist control* fieclrealatlon of air fra dust collectors, practical td thi* pleat, la alacuaaed in tho ^csaral report os po*;e 13 The cocsercijil filters eaplryed cere ere undoubtedly are officiant U-*u tho burlap bag house coosaa i&, and vonlo bo tfte useful subject of tost* La tho loor Lera inestigetioo* outlined* Sulcal This is tho ooly eoapaay ltb a syct-wsatic x-my xsalr.*tlo& arogrta* Tho oatlaato of 5 to 6 cases of early so be* to* Is is a larger inci dence than la any other plant* It a anna that roat contributions could ha made to tho nropoaed dlagsostlo panel (pafa IS, cn*nl report) by this eoaoeay, *ad that it tools clso oroflt grottly* 5.C.1* UitKo Stwul Engineer JHM33042 COPY INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA, INC. 4400 FIFTH AVENUE Pittsburgh 3. Pa. July U, 1947 Mesa random on ?aat of Burse and Coepenjr Sn?sleaentln The Ocnrnl flesort rreliaioery lust Investigation for Asbeetoe Toxtilo Institute* Of Jana, 1947 lustiness This cospeny U designated by the letter I in the ?en*rel report and 4 uasr7 of its dustiness -liven in that coluaa of T"file I. Tbs fl/uro* are baaed on eoxe dost counts sd by tha Gtoto, but it is beltetod that awe reduction has bo&o efftctod* at Least in cafuin,*, sine? tost Line. The fibres indicate oustiness equalled by only one other pant. jf partlcuar interest is the hl^h ie^ree of dustiness tn eolnnlns *nd teistlog. In all bat too pasta those operations re practically identical, so dust counts ere comparable. The figure* sr.o* 7 to A tinea cx such -:iuL la tnla plant. The explanation for this ees not ^operant. It axj reeat '`roe * , raster tsouat of dust In the etoex duo ts differences in praps ration aei.eds, a u..iity tm etit<i.te-J to evaluate in a prelislcsry say (see :e,-;e It) 'JHH33Q43 Uweoramitiai on ?Lmt of fturfco and Co., I'uoolftaoatla*; tho 3mgfal ?nort *ProuL.lnis*r7 Oust Investigation for Asbestos Textilo lo^titato* of Juno, 1947. Znt>< Control Prscileus Several potato 1a dust control in prop*ration and at carding sachlno* iroro diseussod fcrtofly vith Sr. * till.*, ns, Jr. at tho tine oX tha visit. Tho long torn Investigations, hovevor, would include trjstcsatlc guidance in tho details of dust control especially vlth respect to or<oara tion, carding aacbineo, tho coax.a of excessive asst, *&A It. re-rorv, In spinning usd twisting, acd oolcctloo of dust collectors. It Is to bo racoon! ..on that, because of tho climate, this plant has a particular utaAe in tho development of information that will perait safe recirculation of air fro* a dust collector. SC1 hcsccii Hood acigiaoor JHH33C44 _L_J_LLij^' ~J tVirv"* '-*'*'* INDUSTRIAL WY<;i.NjE FOUNiDATiON OF AMERICA. If^C. x *>- 4400 PiPTH AVENUE PiTTStiuscn is. Pa. J-^7 U, 1917 ii*->Of4.oJua a ^lnt of JwIvuA'JactUUo Carporoti-oa u{vl6a:;tlA{ 7b* t>krr.iV ftc-;ort froli-luAr7 UuAt /bvacU^btloo lor i*.W*u>* 7*xtU* I<,*Uu:te# Of Juu$, 1947 i u / \ \;. e | $ Tbi* ,'l*at li Je }<,:; Lei* J la tbo *r.crx.l report. Tie tja-ary f la coIuaoj J of 7*,,bl* 1 ray fc-e cc.-.ptro? vith *11 s/.topl ^Iat.Uc C *nd I. 7bro U . c or.& i tanUy bihr dJ?ll;j9f la til operations io pile of Ui# fact tL*l it.'jo t-wi of 4fl.it/ rw**> oen ny^vmlec 'lor d-;6t control *t^uipja t Tfc* f.u t-cou it dot* do imUctto X4t*t7oclry control r.i 'oat lu operation** *-o fcoapact t^t '.)< i-*Jor cau* of tn* ;voor dust cor.iitioox r*ulli fro* tbo pr*ct.c* of rturuin vir froa tic btc louio to tb* rur't roo. TiU *bould b* .in* LIc* tpj {# dUcoaaioa of roclrcbloUon, ?*g* 13, {oarAl rtport)* /Yu // z/jM/ 4B 2. on ?l*ni of JhM-X.oUi# trp., iuppU^ntlns t*m c?:-'r`_LJ-*22fA, n*r7 i>Jt /nr##U|>Ucn for 1U*Uj* 7xlU* ImUUU* of Jus#, 1247. T-><t Cor.tral frscUcM *>*1a fro* tnl* plnnt AT* not lecluJoO in tr* tabulation of jp,yi rkUt lor c*n5i (pc** l,rnrtl report) Ncaua* tt* c*rta o\iU ta to eoajicratl# and U icntrol of diut la ttU U*p&rUont U nut raod, u* juiced kj <Su*t count*. ubfrr*tlon* of d\*ct consoctleot on J'r.ltln etrC* iodic* ta tc crljicul #il*uat c*r^itj of ottr i,COO to 5,000 c.f*. a*t control orr*u;*snt6 is ss# c*v Itltia carcc citor^* fro Uit Not pfoctlc** 11* Ud on pat*'9 (x.*o*ta1 report) ux to Item* Tbe t**i combination of oaMU*i Z->r Itxla cars; tduIJ * v:nj oat it. th* ooli>#-*rii.x: p&t*c of tb .7f>m tfim Ssw+ttlratloc ;-r ^*r>/< Js tbo ;tn*rl t*;oj4 j*^* *** 17* I oil JL^> tbt . TL coined to cc 13 ire ptrllc.ect. * ? r.r' '-iltrt trtt tn* tlficlAocjr of Uirl^p is eco^ucto to yomil * rclreal* ti on f ir fre* it LacjC t* U.* worcrc;. x* i* t.\o ,:re;-rt practice. T* to not nil* cut to* pu**iti*lls t--.t i-c ft guard* ecu um .w'fftd th-.l ,-riv Ur* recovery of b*t ripr*%cr.tcu thereby, 7bc IccU'rsc* of atbovV^ls It U:1* ;.**ant U CimjArsLl to only o\2*+r ^lot (i). ft* ttOlctl sroblor of oUsr.ooU It cvcpiicatcd in tbi* jl*-ot by IL* f^ot tt*t ..*.ny wrtiri bit tern **pioy*rt In *ntbrt>clU co*l ulccn *od *o *b *t1j%oc# of xthreco--llico*La 7r. %*n*i activity rof*rrJ to oa pc{ 14 *Uruld l* j v*_luibl* in tLo** ci reuse Uoc*. sn i?~~ ^7"y. v. C . I. * / . COPY INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4-400 FIFTH AVENUE Pittsburgh t*. Pa. X*ly U, 1947 tteooraadum on Plant of Job&s-CUnYlllo Corporation Suppl*s&tla The Sengra!. Report drollsluarx ktst Iuvsatl&attoa Tor 1*few*to* Textile Institute* Of Juns, 1947 iHlstltVeSS This plant t desiccated J In the ccral rsport* Tie suasary - of dustiness La colucn J* of Trials 1 say be coaparod ith all except pliwt* C and t. T>oro is a cooslatently higher duetlaesa in all operations In spite of the fact th*t lar^e su^c of xocey burt teen axpemiec for -just control eculpasnt* The dost count data do indicate satisfactory control of -'ist in v*4vtc operations* x# suspect that the sajor cause of tse poor dust conditions result* froa the practice of returning air froa the beg souae to the fore / rooa* This should he Investigated (see dlscusslsnof recirculation, pare 1?, general report)* JHM33045 i \ ' 2. 2ot*oraodua on PUat of Jofcas-iiunYms Car?., Supplementing the Gansr*! ff^oort. *Pr*Hfliaary u*t InYootigniicn for Atbeeto* Textile Institute* of Jubs, 1?47, Dnt Central >ractlc* let* fr this plant are &ot Included In tee tabulation of axhsust r&Uc for caret* (oat* 3,general report) because the slagl* card# y^uIu cot fcecos parable sad tie control of duct. la thi* depertsect la sot food, a* judged b? duct coasts. Obserrstloo* of duct connection* oa ftltia esrdo Led lea. to an original exhauct eapaaity of OYer 4,000 to 5,000 cfJa. Post control arreagssoat* is toe ee fhitis card* diverge from tn beet practice* listed oc pegs 9 (goner*! report) a* to liras 2,?,6 sind 7. The boat coabination of sxhauet fjr this earn would be vorfcsd cut la tbs engineering chases of the long-tera inYeetigstion proposed la the c*csrol report (tee page 27, I ucd A) iUolrculstloc of air froa dust collector* has been touched apoa chore. Tbs cocaent* oc pegs 12 *ra pertinent. Te :!o not btllrrc that trs efficiency of a burlap dust uousa ia sda^untd to porslt rretreui* tion of sir fro* It bee* to the soraroos as Is tto present practice. to not rule out tbs possibility tout sufeguardo ecu bo jev'sed that *tll >rait bus recovery of best rspreaootsd thereby, gedlc&i The tocifwcs of soboetosi* la tele plant Is cati.'vtrabla to only on* othsr eLsot (a). The cedlcal probles of otegaoats . cusciicated la tbltr plaat d/ tie-fset tr-*t ;sa7 vorxars beta been saployed la AAtnraclt* coal sir*-* sod soms shoe evUecce of unthroco-eiliecela, The ckui ccilYlty referred to oa page 13 should b eapecisllj velashl* la those circuaeta&ee*, JH33304S * Sr 3*cd fn^incer COPY INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh is. Pa. July lit 1917 Yaaoraadua oo (J.S. Aabaatoa (iUnhtla) Plant or ftaybaatoo-Yaohattaa, Inc. Supplementing Tha fangnil fltwrt Praliainary Coot IaTootigatioa for labaotoa Taxtilo Inatitute* Of Jana, 1947 Postlnsfla, This plant la designated 4 in the General Report* The range of concentration Hated la Coluen 1, Table va* fixed by as otaalnation.or the dost count data, of recent years la coepany files eitb a llttla weight glean to our o*u taken at the tine of oar rialt* Cast count data for the preparation.departaeat Tara not adequate for estimating average exposures. Coat control In carding la equalled by several planta^ tut la hotter, *e believe, In tr.a Charleeton plant of this coapaoy. Dos tineas in weaving la believed to ba tha loaaat la tha industry. Oar mi dost count* node on larch 19 ara an follova< JHM33019 Xeeoraa<nM on G.S.Aebestoa (Xanhein) Plant of taybestos-tankattan. Inc., Supplementing the Goflflf!. Escort PreUainiry 4ust Investi gation for isbesto* Textile i&atitute," of June, 1947. ^ . >tbor Elapsed TU# 1 10 Una. 2 6 tic*. 3 10 Sins. 4 '*12 Sins. 5 10 Kins. Location frist -Cgpat.. General air in finisher cord roos at telce-off end of aachineit t, 4 11, 12. 2.4 Slnilsr to No. 1, but at sechines 6 end 14. General air, tax an while eaDciog up and dova aisles of ep^pnlr)^ r(*00174. 2.9 2.0 General air,' taken while up end does elslea of tvlatine machines. it operator of looa H)o it), a aachina cost distant free trl&ter*. 5*3 2.1 Dust Control Practice In the tabulation concerning carding 20cMu* exhaust ajetees this plant la sheen to effect /iood result* *ith the Invest rate of oxhaost. of an/ plant* hoverer, dustiness la plant B ia eaterially lover *ttb 00X7 about 50 per cent greater air flow (tba extra capacity distributed to auxi liary branches) ^1**1 This plant has been Included anon# those laving tad a recent i-cty surrey, even though not eepeclelljr systssetlc *ltk reapeot to tlae because of the policy of tolantary examinations. The Incidence of asbeetosis indicated by coepaxsy records ere quailed by ooe ether plant, tot la the base of the latter there ia ground l for doubt aa to the accuracy of the diagnosis, according to the preeent edical director. JHM33020  / * * j ' COPY INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh te. Pa. July U, 1947 Samorandum on General iabeato* and ftubber Plant of -- - fteybestoa-ttaakattao, Inc* Supplementing The General Report *Prel lainary kiat Investigation for Isbactoa Textile Institute* Of June, 1947 Puatlneee Thin plant la designated la the general report u B. The sample# taken by ua vara all lover than one alllion, bat alace they mere single seaplee end differed considerably froa other data in aoaseay file# ve-did not give them fall eelght la eeticatiag the aver- range given In column h of Tahla 1 (page 5 of general report). The company1# duet count record indicate# the longest period of low dustineee la the industry. la epite of the span of years cowered, the number of Individual * 0 duet counts Is such too small to constitute an adequate record. haaageeent Indicated that a rv-surrey eea to be made after certain process changed were effected. However, it la oar opinion that present concentration# ere very JHM33021 2 *eooreadus m General Acbostoo and Aubbsr ?lant of KeybestosKeabettaat lac., Sapplaeeattag tbs General deport >PrellalPsr,7 Gust Investigation for Asbestos Textile Institute* of Juno, 1947. lev and - rcrald advise that srreaf.eeeata bo ssde with 3r. rehnel for a thoroughly coxplate survey without welting for each ctum&es. - A liberal cstabor of laaplee laeech operation is required to establish overage fieuree* Lust counts **4* fey as ere as failover Suafcer 1 2 3 4 5 6 7 8 Elapsed Tine Ula*) Location fust Count 10 General sir near take-off sad of c&rd. 0.2 A sachlnes distant froa foreesa'a office e 19 la breathing sane of rule eoinner opera- 0.4 ton following bis dartnc* saeoiiai*. . 10 10 10 10 In breathing soav of operator of Tovter winder. (About 1/A of duct branches placed br bobbin.) 0.4 General air, tales while following with in d to 7 fast of operator of ring f.?taRtat.frw** 0-3 General air la. vicinity of A exhausted loswe (dry). 0.6 la breathing tone of operator of one loos. 0.3 10 General air, taken while walking up 0.9 and down aisles of tvtatere. Exhausted. 10 Aaste as 3o. 7, bat sxhsnst systea abut 1.4 off. JHB33C22 3 Xeaoraadux on General lsbostoe and Rubber Plant of sto/fcostos-' Manhattan, Ioc., SepoLsasating toe General fisgor^ J?rviisiuary 2aat Inrestlsatloa Tar 4abaatern Textile Institute* of Judo, 1947. -gunt Control Prictlges It is susoectsd that tbs unique fiber trentcant la tbs preparation process U7 do saeh to rsducs destines* la sabsequaat textile operati-J&s. Tbs tssts described under *Tabrsnt Custtnsss of Stoeb* (peg* 56, general report) *eitld iUunlnote this point when fullj developed. Cafd|ng % la tbs tabulation of card exhaust rates (pego 5, general roport) this plant has, vs bailsvs, soaewhat bsttsr control than Plant 1 requiring about JO per cant greater air flow per wachiao. 411 sf tbs eight good features listed on page 9 wers observed os these cards. ?e ace of tbs opinion mat the 2 inch, iuct* arranged to exhaosl tbs spec* between ring defferw and sain eyiiadar Is not full? offectlrv due to rapid plugging bat are convinced that U-s objective Is worthwhile. Tbs plugging is caused by Ineffective distribution of planned air flow which, In turn. Is the result of gross differences in friction less betvevn tbs \ disaster acd larger dlaaetar bra&cbee (referred to unar *tuct fl-ri,* top page 12). `X*frUnt There Is seas indication froa dost count data of value la the sxlit- Itj exhaost sjstae bbt tbs data are fragaantary and inconclusive. Tv vould S' Ilia to & tsreral *oa and off* tests aad* alternately an cue* da/ for con firmation. JHH33023 deooraodn* on General Aebeetoa and Subber Plant of flaybeatstfaohattan, Iaa, Sttpplaieacting th Geaertl Retract *?t*liinar7 'fust Investigation far lebeetoe Textile Institute* of Jane, 1947* Medical, tMe plant in on of those without adequate infarcttloa as to the incidence (or absence) of aeboetosie and strongly fecocaseac the Institu tion of a syate* of aedlcal supervision as indicated to this section of the general report. The last paragraph on pge 20 of the <eoeral report refors la port to tni* company, the inforuatioa that could be gained ftou a statis tical study of the incidence of asbeetotls ae related, to vorxAng history la a plant vlth this record would be of rear, treat value. VC.1 tfewson Head Sogiaoer .JMx.imo a COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh Pa July 11, 1947 Xenoraodua on Plant of \ Philadelphia Asbestos Coupon/ Sapploaeatlxig The General Report "Praliainary Oast Investigation for Asbeetoe Textile Institute* Qf Jane, 1947 Pastiness This pleat is designated as C in the general report, and the due tineas sunerlsed In that eolssa of Table 1* For reasons outlined in the general report, tbs values for preparation ere probably not very repre sentative la any of the plants end only approximate coe^irieons, therefore, .can be nade* Tha data for carting end weaving confira the observable f?*ct of hifh rtustloeee in this ident* Only one other plant in tbe rrcap is com parable to it* Our ovo dust counts, which supplement those la the conpaay flies are as follows* JJM025 2. Meaoraadue on Plant of Philadelphia Asbestos Conpxny, Suppleaeatiag the Leneral Beeort *?rsliaiaer7 wxst larestlgatibn for Asbestos Textile institute* of June, L9x7. Xtsaber 1 ' 2. v X 5 . Slapped Tlx* (lin* v) Location lust JlmnL . . 5 General air near sule spinner located 5.7 nearest to office* Judged that no dust froa any adjoinlnr deoartaeot. 5 At loo* So* 91, dry veering* Judged 14*6 that aost duet fres wearing (although possible contribution fro* dicker rocs) 5 At high speed, PAS, cards, at delivary 13.0 sod* Exposure of operator. Considerable duet contribution fro* older cards in edjolning rooa. 7 General air la old card rooa. taeffec- 10.4 tire sheet metal canopy hoods over curds. 5 General air sample obtained while walk 6*6 ing up end corn aisles between twisting maahlnee* Sunt Control fraction Control of dust fro* the ? & & cm re* cannot bo rerj a**tijfkctor7 riiile that fro* the older cord* Is ancon treilod. If their nee 1* to be continued teaedlate atop* should bo toko* to provide proper enclosure* for thee. Cities te exhaust of the ? k S card* will doubtless differ In eon* detail* fro* 'itber cakes, tut for the present the following points ere to be noted. The existing arrangement* clffr fro* beet practice* listed oa peg# 9* ,{mnl report, * to lteaeA, 6, 7 end 8. Especially disadvan tageous Is the large dlnaeter (3 loch) branch uuct frea the top of the fcous- lag In combination with the carrow slot connection to the ncuslar:. 7. 'Jeoor&adsa on Plant of Philadelphia lab&stci Coapkny, Suppleseating the ttanerel desert *?rliinar7 Dust XsruU^&tioQ for *obesto* Textile In*tltute1 of June, 19X7. The practice of recircaletloa of *lr froa the aust collector U questionable elthuuch It nay icpeur that lea a difficulty vilL be experienc ed with this typo of collector then eose others la use* to order to follow esy cheats* is pressure drop, * staple voter IT--tube should be l&ettllrd that will indicate this value end esa be frequently observed* The greetset seed. la tr^ pleat. 1* guidance la the control of dust fron carding -xecoloes* This uoaic. be covered sy tf.o pra&r&a cutllseu 1a Li.e geaerul report for the loa* tors project* Sedlcsl The x-ry survey of this pleat nude recently ohowins only * to 4 per cent. Is la sharp contrast to the experience of sooe other plants* Lscfclnt Isforsatioa so to detail vorx history of the caployees no AXplenatloa cso be offarea now* but the discrepancy eoooid be laves ti^.s tad* n.C.u* Ucaeao Heed tnttineer JHB33027 COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh is. Pa. July U, 1947 Stsoruulua on Plant of leasbey & 5* ttisoa Company SuppIscanting Tba General flaoort Prolininary Uaat LnvoctUetlon For Asbestos fexill* Institute* *Jf June, 1947 vucllnre* TMs plant la ** D in th* $oenl report and an ap praisal of it* destines* la sunoarlied la that colusta of Tulle 1. For ratoon* outlined in that report, the value* for tha preparation dao&rtaaat are not considered truly representative of any ~ne plant and, therefore, only approximate comparison* can be ade Our own suat count In tee cardinf roou ** arterially lover then tc.oa* In the coaoany1* filew resorted by the htute la 1944* but >e -.ato v'lreo little velrhi. to our value* because they are tingle snapl*# end therefore subject tu *aa;>LL:;>: llaltsttion*. 2e aeeuaen tint no ;**jor xodiflea lion* av been sale for Improved duet control since that tins* On TUH^OOR alua 93 rlost of Xo*bejr k dsttiaon to., Lupplosanticni th* T-*~L*rcl :*itort 'r?nsliato*r7 -uat Investigation ;'oc ssbsato* Textile Isstltuta* of June, 19-47. th rbola * do not fool that existing dust count recoeds *r* scf.iu&to to .ire a rtpreaaatfiitlre picture ci* -Just conaltlc-as la tt.Lr pixat. Trls till t>a cerroctad ty it*pa tea coaptoy n*s t&x*n to train t 34a to uo this >orl Oar own dust cuunta ora ^ires bolovt busbar Elapsed Tlse (Xlns.) location J*2S W Count 1 10 In alslse betroen various spinning 1.0' Machines< 6 aacnisoe ;:ot Is ooernticn. c * Ci-usral sir is cardla* rooa, at roving 2.2 end of sschinss 4,5,6 and 7. About half of all aachinea chut doim. 3 5 Soteeea 2 loons at partition 13 2.6 fyruaaan1*)* 1 * Geaor&l air is *eave rucaj 3 to 4 ioocs 0.9 is operation. Ractreulatloa of air froa the snail bag houoa acar tna iIxlag operations s not good practice, and Is tala case there in obvious op^ortualty f;r laaloge of oust through th burlap filtering alexant. (iae discussion Is .jeoaral report, ,i{e 11} Medical ta boro Indicated la Table II (page la, ?,ener*i report), that tils cos`.any ha# bad a recant x--ray surrey although It css not cocrpleta because of Its voluntary character. If the uora extensive bar survey 7W?mn29 3 Xeoomndua oa ?i*at of Xes*by & ^attisoa Co,, Cupplaosatic,.; tho C*.nr*il %oort ?rsliai0*f7 Pout InTeot^etion for Asbestos Itstiis Institute* of Juce, 1947. plscoed far Kay, 19/7 aoe tie *&* locic'ar.ce *. Indies tod ia la* pant (tee p&4 15, elant C), aom* exolnnotioa should ta aoucht to thn erfc history or otherwise Cor the spectacular discrepancy bt**a tree* 'l&e-ic ad tnose for plants 1, A and J. *<** heseofi*. 4**4 lower II imo ^ no o ; i 4 V' I COPY INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh <3. Pa. July U, 1017 *aor^mdua 00 ?l*nt of Carolina Aabes tofl Coapaay GapplMtaeailAig tbe General deport Preliminary rust Investigation for As bet tea Ixiil* Institute" Of Juns, 1917 tNstincsg Tnie plant la designated u & k Iht general report *nd as ap praisal of Its dustlnssa Is summarised is that coiusa of Table 1. Mr* Terry*a Just count data carry heavier eel^ht tssn its single ones made by us because they era sore nuseroue end, therefore, praties s tetter svora/e* The valcos lven in the t&clo, therefore, are fcet.vlly +l4bted by those figures. The figures Indicate tnat Just control in euual to that in tee everefa *4004* plants of the ,:roup. Slight ;lffernc* betveon plants should r.ot oe Uxsn-too literally, since nonuil v^rUtioas sf uoee a*...pjlCuds occur. rt. Xeaorcndu* on float of Carolina xabaato* Co%, CuprlaBorttitu? wonftwl E^nort *?rlialn*r7 Dujt Iaawtixatloa for lebaatoe tostltata* of Jons* 19X7* tio T-iotiia Our own ftlitsl* .Uut counts *ro ,<lr bclovi 2unbar 1 <4 * 1 Jlaraad flaca Cxtna Operation Duat Count* X it oatsida rfoonrajr of preparation roou* 0.5 71xible dust fro nearby bag hoax* claw ing la tfcir direction. f&toa to nettsura do*ra of nosslhla raconU.ei nation. 6 Oenarsl air aroand cards 1.2.7,X5 4i;d 6. 0.? 6 Con* ml air around ciris 1^,14 aod 15. 7iilia cuat avcnoa froa Xo. 14 brar.xor. 5 Gwnarol air, *cilo *lxLs/ op ami down 2.1 Salaa batvaan t*'.a tura. rust Control *.gtlgaa Thu av carding axhuast ajrstea 1a <jood axcopt tiwi 1 cooslCarabla *tut ** attcaplxL# *t enls XX aad 15, tba caao* of Mch *u ilo sot Rt4il>- lih. TJia ofcaat natal nclosur*a .*/ aTantuall/ aod to fc* rwnlacad cco to waarintf of bola* la *.& gldaa at fc&a rla of lb* aula c/ilnoar, to crushing of curare* fcaforo tbix boooacs &erloo* initial atap ghouls r.o tftttto to 'Ui the conraroioa f-rtbu^lly *lcoa conaldamt-1* tlou til t* ro,iir>c to affact tfca c'Mio^f for oil sacoI-mi*. Ta Tnbla XI {g>ui* 14*'&s*rsl raport) *>e car lLttai tuto c^pany as not ftariag 'tan as/ o-r*y aurraj, bacaoaa of U:a f-.ct ti.e t ti c St^ta'a .IHM33032 ^csorfcQdui* oa fleat of Coroiimu Aoboutos Co , uppXK&at<r h* jjfflar.l >j-y->rt *Pp*iJjiflfcr7 Soot Iavaotijjotloa fop Xoeatloo TertiXo luctituto" of *aao* 1947* findings *r> ovailocXo only in * lisa io 4vt.f' itlo to tSo cosry-qy y. 7*/.a fact io tfcot do i/iors~ to Inclines of oba& tnoli-* Tio roaorxs la this ^action ->f i-o' report roLatte t ti. i*porU-nca of U*e periodic nodical aseniaatinc aa*t so fia*d io tha ii^ht of tfco particular pro^rua of t& Cu.ta *f dor to vroliaa tfora axtanaisc specific -drico on into polat # would aat tiaxplor* too practice* and ?ollcl of tbo ftato to x*o root cooLs to wor4*d :at tr.aa* TMo tx* p locution *caid to* port of tiso radical tod af t&* lojif-tara opoxirsa, as to th sonorai report* 3.C*I* UCAtOf! Sa*ui s.ojiaoor TtiMQini *) COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh 13. Pa. July U, 1917 daaorcailus as ?l**at of Southern Asbestos Coapeny Sappieeeutln* the Croenl Report fpellataarj lust Invetiti^ctioa for Asbestos Textile Institute* Of Juao, 1917 Eustl^ega This pleat Is deeinutad by the letter T in tho general report, sad our appraisal of lie -:nstiaeaa suxserised In ihet eg lane la Table 1. Our o*n duct connto fore such lowar then those recorded In the company's riles* Since they, however, were only single cenplee, *reet reliance cannot be placed on then* * here, therefore, not fel^hted thee heart I7 In electing flares tc represent typical dustir.sss* The figure* InniCAt* that duet control lo e<juel to the irerw-a *tOOdc pleat of t.p* ^roup* ulfferences that *4*7 appear fro* * superficial cvnpsrlson should act be tsksa too literally. Thus, there Is no reason to.belief# that twisting Is eny less oust7 In this plant then In tnj other. tUMonno j 2. 2e*or*oda on ?ltnt of Southern labesto* Co*, supplementing the Cenerri Escort *PralIiaar7 iAist Investigation for Asbeatos Textile Institute" of June, 1947- Oor duet counts are given bolovt Suaber 1 2 9 4 Slaps ed TI (2J-=.) Operation. Cast Count 5 It breathing zone of operator of loons 0 j, 5 and 6- Dry weaving bet lay beam ex hausted (by 2 to 4 Inch breaches) sad exhaost under vnro at floor level- 5 It Tfcemoid loose 15 and 16, and la breathing sone of operator- D&ap weaving- 0*6 5 &ener*l sir, wails veiling np end 0-5 down 2 alslse hetoeen twisting fronts. Only 4 sachlnee mania* 5 CtAsral sir, while welkin* up sad down 0-5 elfiloc bqteeen aolnnln- frasnfl-___________ Poet Control Practical The coapeaj plans for installation of nee carding sachlnae rill afford an opportunity for install*tloa of a first class aodera exNaust e70taa- It also oeans that it rill be of great ixportanee to Care specific test data, enabling uo to frame accurate specification* for the aost affective and economical exhaust system f mr the particular ease of earn too 1*11*0This Is eonteaplatad as a part of the proposed lone tern project- The discussion on dust collectors (page 12) Is pertinent to this pleat- The ian-i-term project includes as one ox* its earliest objectives the development of rational speciflcatioaa for either construction or purchase of appropriate *mst collectors* JWH33Q35 1 lcor*iKUui oa Pleat of Southern boetoc ^o., Capplffaeatirt^ the Cenorl ft*cart *?rliijuU7 Cast IaTwettgetioo for JUbootoa Textile lootitute* of Juao, 19X7. yjaUtU la T*blo IX (pe^e 14, generxl report) # &** 11*tod thin concaoy *e sot novlas bad eny x-r*x acreey, boc=^ of tie ?*uot U'At Ui state's finding* trs avellobLe calj la * nogetivo eoy. The fact i that no inforaatloc lx *Te.tl*bl* to tb coc^aa/ ox to incidence of eebo* toaix. The rtwMrxB La this eocti.cn of tns report relative to tbe impor tance of the sortodlc eedictl axftsiaotlca axt ce vioeod in tre JLi^ki of iao particular progra* of tto SUU of garth Caroline. Scfora extenair.g xpecific enrtce on this potnt *o vauid eupt to oxpJLere the jirxcticea cod policies of tho State to iee ecat *111 bo carted out rith tn*a. TM* ex-- olor&tiaa would Co e port if the xedica.1 end jC the loa^-tcrx srofna, oo outlised In the general report. JT.C.L. Eoeooa Stj&d Engineer JH&J3036 COPY INDUSTRIAL HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh is. Pa. July lt 1947 ieaoraoau* on Float of Tbo Garlocs Pacxl&c Cospanj Supples Mat lag Tha General ftgsort PrilxXrAf7 IHist loTeotlgatlon for ictoztou Tastlia Institute* Of Juno, 1947 CustlnesB This plant io d#sl~s*tad as G la tne general report and art ap praisal of Its dustiness is ausoarlzod la list caluun of 7atia 1, page 5* The alfftreaca* between these Talus* and those of other ^ood plants are, oa the whole, sot cl golfleant oca v rats this plant as &Trage * good* Ho*ewer, this doe* sot eeao that auot control Is oatlrwiy sat isfactory In all rfpacts as lortlcwted In the *eoeral report* There Is ca insufficient ouaber of oust counts in to* conpsny fllfts to -tonstltut* an adequate record of dustiness. Toraal Tariaii-cs r-ssuiro a cenber of counts at each ops ration to preside a useful arerege* JHH33037 &eaor*Adua on ?laot of The CUrlocx facxlSK Co., bupplasantlng Vhs Central ftesort "Prelialsary Uist laToatigation for ibee tM Taxtilt Institute* of JunaT 19-47. war oen alagl* dust counts tshta at tlw tls of th# visit sr giTwn bdov. Stabar 1 2 3 l nS*fSlM.) * ^ration* Cast Count* 5 At operator tad of 4 carding sachlnaa 1-5 (Soa. 1.2.7 and S). 5 Gascrol air la alula* of twisting 3.0 machine*. 5 General air, along row of loons> 3.1 coat window* open along the worfcin# aide. 5 Ceaerul air la aides of spinning 1.7 f rt*aa. Doat Cgqtrg.l^Pga.C.tlM Carding it control la dlacusead on page* 7 *cd 9 of the general report. Hefareace la node to tho txhaaat eyetea In this plant which c- coodishe* ti good duet control as a Inoat all the other "good* plants but at exhsoat rata* that would oot be practice! for-othor northern pleats. Tha iic*t collector* la see at thia plaot are of eoaslaemLla tn- terwat because they laduds two t/?** aot la aoe In *07 other plant (Air tut and Pereses) bacauaa cooeoaly thought to ba impractical. Tuat data *oa theca unit* would tharofora ba valuable. JH333033 3 Zeoorantfai* oa ?Lant 0/ the Sarlocit icicles Co#t Suppleenting the General ftenprfr *?rliainar7 fust In,,F*tigetlon for lebeetos Textile Institute* of Jane, 1947. Engineering etadiee pcLaoued for tbe long tern U.T*fcti*tlon of particnlar Interest to this plant ond outlined in the general report %re 1 dust control Is preparation, twisting and veering, and efficiency of dust collectors. Nodical ........ .... ; . .............. Is tfce aedical section of 10# gensrel report reference i Mule to tio sereral coapeaiee who hare no inforaetioa 00 to toe Incidence of poten tial esbestoel* in their plant* tbie coaceny la one of those end -there fore isb to underscore here the recoasendetlona coccer&in^ periods x-ray xaaJLnatlons discussed particularly on pages 14 to IS. deaeon hand Engineer JHM33039 COPY . ,'V V i INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4-400 FIFTH AVENUE Pittsburgh a. Pa. Jul7 11, 19^7 XeeomnoujB on Plant of Union Asbestos i Rubber Coepany Supplementing The General ftopor^ PreliaiAsry lost Investigation for Asbestos Textile Institute* Of June, 1947 Thin eonpeay 1b design*, ted ** H 1a tho general report and an ap praisal of 1U dustiness la suansrixed in teat eoluaa of Tabla 1. There Is couplets 1&cjc of previous duet count data 1c tr coapany1* file*, and those taken us ure too few In auaber to provide a ood aver age. Ve had & definite lapnessloa at the tine of ssnpiing of carXedly ^roster dustiness than tho final count results aUovetl, tut v* have no ex planation t tnie tixo. The results ere u folloeei JHM33040 2. aUanrsacun on ?Uot of Colon Asbeote# * Hubbor Co.t Cupulonentiag the Gsoral ftorert Prollainsry Coot tnrseillations Tor Asbestos Text!ao i&stiwts* ot Juos, 1947. Saober 1 2 3 4 5 6 Zliased Warn (lins.j Operations 6 General sir lo lisle* of spinning- tolstlaK frane*. 4 Coooral sir in si sloe of dinners; e&a room sa ssirmimt-ts lstlr.it. '5 va operating platforms of sorarm1 brake lining looss. 4 Soar operator of onu broad looa on o^po- sit* aids of room from 3. Open eloaoe bebind. 3 It rorlng *od of 4 enclosed earning machines. 4 At far end of card roos -ihoro risible dost escaping from eaclooors st top. u*t Counts 7.7 5.3 4.5 6.3 2.5 fy /C 7 ________2______ At brushing end of lncla rose cards. 0.4 Cetn.tral Tho carding dust control systsm tp,<ori to be, fUndsnctitAllj', as eff^cti-re t# the sror&ie of other "good* plants. In practice It Is In ferior cue to operator carelesoccsa in filling to replace portions of tn enclosure. Boot important Is t.*ve p*nl oa top dssl^ziod to reduce tea tr-rou^t. rfci.cn tbs drirlns bolts poos. Spinning sad tviatin^ prosoot s ore ties cot airectly sampereble to othor plsat* fcecdune of tho uolttus combination of functions lo coo t etchine. Hi?33C4i 3 HesoraAtiaa on Plant of Onion bastes \ Kaefcar Co*, taooicoontlng 1ft* ^aoaral daport *Pmlisinerj 2u*t IftTOSti<ition fop *&** tos Textile lu^tttuta* of Juno, 1V47. Tba spray buaidlfier aaployed at watvio* aaehlnes aooa not fall into olUir of our eatagoria* of *danp" or *wC* waawlng, and laewas aoaathing to bo dealred la the way of laorowad sut control. fiaclretiiation of air few dust collectors, practical li tils plant, la discuss** la to sasaral report on poj;a 13* Tha cocnorcisl fix tars eaplryvd cam *ro undoubtedly oor* officiant ti.*u tha burlap bag housa coosnn aao and would b* tfca useful subject of taata La tba loo? tarn inwoatijgatioB* outlined. Radical This Is tba only eonpany with a syctenatie x-r*7 *asir.tloa orogrta. Tha aatlaat* of 5 to 6 cases of sarly aobaatoais Is a larger lacidanca than In soy othar plant* It aanaa that jjroat contributions could t* **d to tha nropoaad diagnostic paoal (pafo 13, canaral raport) by this eoaoany, *ad that it would also profit grattl;. 9.C.I. Unton Hoad Soglnaar JHM33042 d T COPY INDUSTRIAL. HYGIENE FOUNDATION OF AMERICA. INC. 4400 FIFTH AVENUE Pittsburgh 3. Pa. July U, 19^7 Memoranda* on fltat of J.T. Burks ad Cospan/ Supplementing Tbs Ocnernl fterort Preliminary bust Ioyeti*tl3o Tor Asbeetoe Textile Institute* Of June, 1947 uuatlaesa This eoapany Is designated by the letter I la tbs ?enerel report and a uB4r7 of Its do*tineas giron la that column of t"tilo I. Tbs fi/uro ere based on soae dost counts aeda by ths 2>tato, bit It is kellevad that aoae reduction has been effected, at least la carting, sines test tine* Tbs flours* ladiesta oustinees equalled by only one other pleat* jf particular Late rout Is ths nlh degree of .lustiness in solnnln/r and ttatiag. la all bat t*o plants those operations are practically lueatics.1, so dust counts ere comparable* The fli^uree sr>o* ? to i tlscs as such just La tnls plant* The explanation for this ves not aoparnat. It 0x7 result *"rox a greater cnouat of dust in the itocJc due to differences la preparation aet.-ods, a c..ilty m &tta<i;.WJ to evaluate in a preliminary Pay (see co,;e 16) JHH33043 Ue*oramioa oo of J.f. burie and Co., Supolasentia*; the ~*meral ?cort Proliainery Dust Investigation for Asbestos Textile Institute* of Joe*, 1947* p*w\ Y9n*p?X.fm*UM Several points la dust control in preparation and at carding machines were discussed briefly with Sr. Silliaaa, Jr. at the tine of tiw visit. Tbs Xon^ tars Investigations, hovever, would include systematic guidance in the details of dust control especially vitb respect to preparetioa, Carling aacblneo, tho coaxe of excessive dost, *i.d Its reinocy, in pinning sod twisting, acd oelcctloa of dust collectors. It is to be reco^ni .eS that, because of tho cliaato, this plant has a particular stoic in the development of laforaation that will perait safe recirculation of air free a dust collector. -iS.C.l.. honecn Heed angiaoer JH?!32C44