Document 3QLBdbEOJqLb66km8RLaMyX4a

FILE NAME: Fibreboard (FIB) DATE: 1966-1967 DOC#: FIB015 DOCUMENT DESCRIPTION: Newspaper Article [Asbestos: Awaiting 'Trial'] with Internal Report and Cover Letter ) r I ( i| r ,X J A \' \ N C r! H A ftfS R iC A N S B E S T O S Z d R * * ' fv i ' ,riC,;s - "wON5_ Ice * v \ K M r. H. P. H oopes, Product Fibreboard Corporation Foot of 64th Street E m eryville, California M anager Dear Harry, . . * R eferring to our telephone conversation on Friday,- I am enclosing h erew ith v a rio u s item s relating to the a s b e s to s problem . The a rticle that appeared in C h em ical W eek in Septem ber 1966, entitled "A sbestos-A w aiting T rial", w as v e r y damaging. The A sb estos T extile Institute sent a delegation to M cG raw -H ill, the p u b lish ers, who subsequently adm itted that it w as a rather thoughtless article* written by an experienced reporter who evidently interview ed Dr. Selikof. The rebuttal to this a r t i c l e , su b m itted by M r. R oger Hackney, a Senior V ice P resid en t of J o h n s-M a n v ille, is I think a v ery reason ed and sensible resp on se to this type of publicity. A lso e n clo sed is a m em orandum p ro d u ced by the Sales D irector of C ape/L ondon for general guidance of th ose involved in the sa le of C ap osite In su la tio n in the U. K. F inally, you w ill find a m em orandum from the A sb esto sis R esearch C ouncil in E ngland on precautions to be taken in the insulation contracting industry. I believe this has b een w idely circulated in England. As other in fo rm a tio n co m es to m y a tten tio n fro m tim e to tim e I w ill m ake a point of seeing that you get c o p ie s. M eanw hile, I gather you w ill be m eeting with Dr. L ew is C ra lley , and I b elieve you w ill find his approach to the problem v e r y rea so n a b le. With v ery b e st reg a rd s. REC ryor / jc end. * 2ii07 - * *its: or S r a c S ^ i^ o ^ S* * guidance ' h e a lth in v o lv e d 'in tho us o f asbBn + n ^ n , "fcne P SQi^ lo dangers to th e a itu a tio n w hich have taken ulnoa !! bas0d m a ta iia la . ' Changes in . to a a p lify no- in s tru o tio n a ? 11103 til0a i-fc Tl>cobbbt7 no* i . i - r * * - - * * . 1950s . the la te s t co n o o a o S s to ^ ^ \ * X B ciaoe * ' ' ' o f an in d u s tr ia l cancan c a l l S ^ ! i f i SUBed EOre V the d is c o v e iy . th a In cidence o f Aabestooia In 8^ 01^ ^ ? 10? t y 6137 la ' ' t o t you ohouid :a ira S lo u S s ftlti ^ 1 , * to o rtm t u 1 " ^ r o o icU i i o r i n 2 e f5 K " " 801;h 8 lio E a is sa e u tro a o ly . g o ^ d (ccnrorfuff tho dM f j 0r | r ^ t B l " g i , th ; ? .1,oa^ a ' - -in te rn a tio n a l Union A s a i n ^ T c ^ ^ ^ H ^ ' s t r a in - e c oy tho . " S f f t h i . S c i d S S ' : ? ' m a h o S d T ^ sted . - . d w ia S 222^ e a r ( l 9S5 ) t o t a ' ''"S S K ^ ^ - a s a ' ' ereposura t T S S S i t T L S i e S a ! -s o o ia te d w ith ' 2:3Or. a,D o u t^ p r e L S a tiT O s i a T O id S ad ied memorand'um o f th e 23rd cohostoa and h e a lth m a t s t i l l b a ^ h ^ ! ^ 510^ .n aod ical aspects o f o f th is k in d should be re fe rre d baelr'+r, r ? f ^ ^ re v e r P s s ib le questions =oy bo pointed out to a ^ o n ^ o f 8" * 0f i l 08' ths ia 0 t3 = ^ te d aiovo " du tbo uoo JLC/CA l `. v i L u t i c n i Vt A* C | r * D C r ^ v,(w^ ** * *% * * V. t \u *4 1 -* **#. 'n\t> n jy .r o o tn -r G-* ^ w *>*.#*%S1^ *T"* / t v*"' 1 * v /# > ^# ? 5. 7Vff% *". * ef v-. ;. i , r , < i a - . , ^-- * t *- / 1X c jifuvcsb ron;ii2rcr g:ar. ,.c:r: ic.svar. d.-vcrsiivpi: . t'-aaarr..,p:a.rir: Jjtr:- wee.. - - - IVs. co :n;:3r.!/ n corr, rxnes saies or neat:' Z. t biiiion'vea: r acniattvr acrecrncn tc - :.:;u rc c t c . z.n v c r n c -"ZiC:- ;;>ir-c .d r- n jc p ,- c c n tr r.i^ a u -c o l -..:- p n c titvu.dtio.' tr ncrv.c zzm ~ iViciior vetiic_!e brake lining:, an?*'c iu .ii:'3Tsie.,, h cn a ix Core iC/elroit.< es.- _ snb fioc: tiiei. --I/- 'ClDuC'O it*, o ceanic cnvitics bv accu;rinL' or an, uiniixcio'-cu am ount of h*T*. r. C -* ... ----- M a rin e A uihscrs (La Ji>ila, pro.iu.ecr oi occniiogsapidc jn- : fo r petrol-.tim and tuiltty . ' anit Clior.li . ,-s ci*sg.igcd in scicntiiic pro- rninf. r r m n v i n f asneStO S-filipb Y,"ni[hon-d-; nrui ilOL'M- . . Hl/lilll.'. .1(1(1 lI'Mllav' Ml. . . in* if'''*.!iti** of a s Ijr".lnviili d term *. ' * . ' * '[ii'ii-:?! f;p>p r i ' - y ' . ' o', prn/_r- c -- .... rr^ms. (2) Fluor Corp. (Los Angeles) and 3. L. M cFarland and Associates (Fort Worth and Midland, Tex.), a " A s b e s t o s : A w a i t i n g ` n r i a i ' group of five companies involved in offshore, .and onshore drilling opera tions, have airreed to merge, subject to slockholdcrs' approval. The Mc Farland group operates five offshore drilling ri;r. in the G ulf of Mexico. 13) A tentative agreement to merge It.ts been reached hy U.S. Plywood Corp. (New Turk) and Champion Papers, inc. (i-millim. is sub ( ject to both Jircclm s' ami stockhold ers' approval. Tiie corporate identities of both companies will be preserved. '* * * p Tlie ashes (os industry-- who? end.";;.'.. PH S officials think it may take- products are valued nt more than SSOO 1 - them up to five years to establish Z million/ycnr-- may lc In for a shnkc- asbestos' true role as an air pollutant. ...; nP* ^ could come In the form of i However, Congress may act before federal Irgislatlon liini/ing (he use of - the research is finished. Says Repre- - asbestos, because nshcsfns has hern a c - \- s e n ta tiv e Robert Watkins (R.', P a .):' . fused-- ihminh not yet "conslcted"-- . i..."W e've seen enough, evidence al as a luniflrnni health hazard. Prob- ._ ready. Asbestos will never get a clean . able contender for asbestos markets: " _bill of health. With just a little more . plushes. . a(a we'll move for - controls and Recent studies have convinced U . S a s t r i c t ones." ' . . . Public Health Service specialists a n d S o m e form of asbestos control is other medical authorities that about ' In the offing, public h ealth ' officials : F . s c L c i . i g G a s R a t e s . 40% of all Americans have m ild,' .arc certain, if only part of a larger O The i'o l. mi Power Commission has ordered lil Paso Natural Gas Co. and Trariswestcrn Pipeline C o - to reduce by S17 m iiiinn/ycar the price of na tural gas in the southern California market.- ' Toe rale cut stems from the July 2f. decision which FPC turned down the .-v -'lion of G ulf Pacidc Pipeline Co. (a T' i'iii-cn subsidiary) `P .'"P p ly Pns lo ll>c I Angeles area f t iP. iijitr_ 5; p: 2 0 ). G ulf Pacific' last week filed for a rehearing. J ' . lil Paso and Transwestern were told they would have l o `lower their rates reflect the lower costs result . t tin Ill "I tes p,i s. 11 (he I-.p.,r.;. -1 -,vs| *lit. Ai ! I...", i" i\: s.-.iit i' ..... *1 >| t*i*( . 1 ,'r- 1 ,.lt 4 - ..'i:i,i pel . f' .noie t it prccia- .. * t i. s ' *\ si--ys to allow cause why i.... jcuuction should not take place. chronic eases of asbestosis, even though most o f.them never worked directly with asbestos. Unlike other airborne dust particles, ; asbestos fibers have the ability-- al- most as. much as activated carbon--' to absorb polycyclic hydrocarbons and arscnicals. Furthermore, says USPH5, in the past 30 years the as : bcstos-rclatcd cancer rate has in- creased sixfold. " The Inferences! While the average asbestos worker is well protected^ the man on the street is not. Th 3 ? ) ' micron asbestos fibers In his lungs can come from a variety o f sources (table, iil'in'r'). \ n d iiu 'lic .il r s n r r l i sn v lit, ri-'- wsy |m hviriH'ai lv>n Ci'ntrnf il lltcr.c ImiR <!'-pOMh. . \n*rirnn C.im;cr Society rcicnrchers f-l certain llicre is a tyncigisiic rcl.i'ionvbip '.Mong airborne a s b -to ,, sin-.l ;>/( and lung cancer. T h rr r'-a-nn lb'" ......... degradable, hydiocarhon- soakcu fioerj may well be .constant ' source of Jung Irritation; ' clean-ambienl-air program. However, , there is the danger that Congress may enact rigorous controls on the quantil.'-.ty of asbestos that could be used In that ease both Canada and U.S. - _asbestos products . manufacturers - would be hard hit. Of the_five forms - of asbestos mined today, chrysotile. aihesios bolus the predom inant m ar-.' v ket position because of its insulat- . _. >ng and processing qualities. Canada ' produces more than 80% of the chry- , sotile asbestos used in the U.S. In both countries'; a num ber of serious dislocations would.occur. C . . v At present, there is no known mnIrrinl tin t --ntihl fill nil of C-K.'.'li--r |t '" vic roles On tl.r oiUrr hiiml, * shi'itM foil-1 1 Controls incirly cnll fur hii;hrr standards for binders nn| i b 'cld'ORs. that uo'j'4 '-park a rbc of new p r o i l m . w i t h plastics l.nVin* live lead. Reason, -ay niin-irv spoke"-net', present porioi-- ."`cchnolopy could easily turn Up products to replace as" bestos in most end-use*. . CHEf/ICAl WEEK P -n tim b e r 10, 1905 " -S2-. .* S -4i-- f---r i 1w sa T r ri ; *"Vr ^ t I'Ct ca> * _jy m **> O_'sio\ /' w:uunp ri .Srn. t-- J - `. contain' n.*.v* tune* .. Ci r.iiVs; ini tr* r.cmu .vsutnni ions ;>nc. lais G:ir.:.> i.stf'.nk. foreseeanr.* iuttir- tr cofnm .tc ' sTieee-^-estos m tne many anniie.uion* to- writer, tt is nrw- usee An* syr:r,euc* would nave tr prove sepcric* - .jra* r.sncsto.s anc t>c ccencTuea h n c ih . ine :aci% arc these: f i! /veriest ns is 5 untoueiv usuiis' nrrxiuct .serving the nectif of modem man am society, smi it is not iikeiv to r>c rcruaeed Ov econom ical!' tcosmic synthetic potvmers. or r.nytning else, n comnctmvt. a s to iieaitn asnects, in June or this venr the U.5. Surgeon General ap peared heiore the Senate Puniic W ork? Siiocommutcc on Air and W ater P o l lution. with Senator Edmund Mttskic in Me foreseeable future. (2) No published reports. even the of Maine as chairman, to discuss var ious pro'niems relating to air-poliution most s|>cciiUiiivc. support the general ized .statements in your article regard abatement. Surgeon General William Stewart enumerated a number of sub ing health effects of possible exposure to asbestos. ` (3) T here is no basis for the sugges tion that Congress "may act" regard ing asbestos use. for no such proposals arc being considered by Congress. We stances in com mon use, including plastics and asbestos, about which he said: "The public health hazards that may arise from these aspects of^ en vironmental contamination have not been adequately documented. In each arc inform ed that the congressman instance further investigation Is needed quoted as predicting action disclaims to determine whether health is indeed any knowledge of health evidence threatened and what control measures relating to aslycstox or ot proposals may he necessary." to control its use. - In these days when all substances (4) N o evidence exists to show that in our air and water and even the. bestos poses health risks for the gen food we eat arc constantly under eral public o r to show that even I % scrutiny, as to their cITccts on the pu b of Am ericans have " mild chronic lic, the fact that asbestos is am ong the asbestosis," much less the 40% figure subjects of investigation is not surpris you give in your article. ing. In fact, we have always supported (5) Regarding your list of "sources and wiil continue to support investiga of airborne asbestos." there are no tions by the U.S. Public Health Service data to support the contention in your . and other research scientists. article that the "man on the street" is; . R oger H ackney exposed to asbestos from these sources, . . Vice-President or indeed that these sources contribute JohnvManvillc Corp. . asbestos to the ambient air. New York (i>) We know of r.o data to support your claim of a sixfold increase in socalled "asbestos-related cancer." As you doubtless realize, lha proper conduct o f our business requires tw to keep abreast of scientific developments regarding asbestos, both medical and technical. Is is our opinion that syn thetic polymers arc not likely in riw T o TitF. E ditor: In reference to your article, "Asbestos: Awaiting T r i a l '" {Sept. 10, p. 3 2 ), we know of no scientific evidence supporting the statement that "40% of all A m er icans have mild, chronic eases of ashestosis." Even in the asbestos industry, w here more is known about exposure levels than among the general population, CJF welcomes expressions of there is imprecise knowledge about opinion from renders. The only the health cITccts of exposure to as requirem ents: that they Ik per tinent, as brief as possible. Address all corrcs|xindcncc to: 11. C. F_ Johnson, Chemical Week, 330 West 42nd Sl, New York, N.Y. 10036. t________________________________ bestos. With the cooperation of labor anti industry, the Division of O ccupational Health has under way a long-range, in-depth study to uaswer this question, as well as to develop better criteria for the safe handling and m anufacture c.'rsn e s'o - ; t: : ei r r - : . 1- inc iirv**r>r_ wii irnr^in;;- ... ir.i rnnti^auni c *.nr - c rnMncKs* m- tr.a tr*; v ^ * n: c - r 1 a.*; n i M uSi*' 1 - -OWis. v. ; Erne E''v:sinr> o r ijccunniinn.v H ea'ir i, \\a iia rc . Puoitc Health Service ` Washington. E.C. C\V ii pleased to si! the record strment. Som e of those interviewed apparently drew unwarranted conclu sions from insufficient and dubious data.-- Ed. . M E E T IN G S Assn, at Official Analytical Chemists, annual meeting. Twin bridges Marriott Motor. Hotel, Washington. D .C , Oct. 10-13. Tcchnicnn international symposium on automation in analytical chemistry, Staticr-Hilton Hotel, New York. Oct. 17-19. Drug, Chemical & Allied Trades Assru, annual meeting, Hollywood beach H old, Hollywood, Fla,, Oct. 20-22. Commercial Chemical Development Assn., discussion of packaging, Drake Hotel, Chicago, Oct. 26-28. National A.ssn,, of Purchasing Agents, Chemical Group, annual fall conference. Continental Plaza Hotel, Chicago, Oct. 27. Society of Engineering Science, fourth technical meeting. North Carolina Slate University, Raleigh, Oct. 31-Nov. 2. American Society for Metals, national metal congress and exposition. McCor mick Place, Chicago, Oct. 31-Nov. 3. P a re n ta l Drug Asste, annual convcn- -tion, Statler-Hihon Hotel, New York, Nov. 1-4. * Fertilizer industry round-table con ference, Mayflower Hotel, Washingion. D.C., Nov. 2-4. The Society at -the ricstics Industry, U th plastics film, sheeting and coated fabrics conference, Waldorf-Astoria Ho tel. New York. Nov. 9-19; conference on < cellular plastics in transportation, Edgewater( bench Hotel, Chicago, Nov. 15-17. The Franklin Institute Research lush, oratories, fourth annual sym posium un the organic-solid stale, Philadelphia, Nov. ' M. ' General Atnmic Division of General Dynamics Corp., and Air lo rcc Office of .Scientific Research, fundamentals of gassurface interactions, San Diego, Calif.. Dec. 14-16. October 8, 1SS6 CHEMICAL WEEK 7 1 .< isu ; 'f.ZZr 7ION5 i-re v e a n o n of A s b e s t o s m v o iv e : tax in g e l. nr a c tio * : ' s t e p s tc m m m . c th e in h a ia tio r OI a sD e a to a Oust. P re c a u tio n * K r v e ~ c o csio e rn n iY a c c o rd in g to ini, eD eciiicatio B a n t c o n d itio n s in the area oi application. ir c e rta in conditions. e .t ., m ere the m ixing oi dry powucr containing a s b e s to s , or a sb e aio a spraying ta k e * p la c e m confined a p a c e a , arrangem ents moss be made for tb e a d e q u ate protection oi other w orkers in m e area -if tneoe ere p re se n t. 1 C ertain firms in th e in d u stry ore already tak in g p re c a u tio n s, although the sta n d ard s of dust le v e la which will allow safe w orking conditions have n o t y e t been e sta b lish e d in s p ite of c o n sid era b le re se a rc h . Until sock standards are e stab lish e d the C o d ea of P ra c tic e recommended hereunder is su g g ested . RECOMMENDED CODE OF PRACTICE : Where a sb e sto s p ro d u c ts are u sed the follow ing p ro c ed u re s should he adopted:-- ( ! ) Wherever possiblo preform ed m aterial rather than s ite m ixed m aterial should he u sed . ( ( t . ) -forking w ith loose lag g in g m ateria] should be done in th e wet s ta te w herever p ra c tic a b le , rath er th an in the dry. M ethods of tra n sp o rtin g p re -m ix e d wet com pounds from s e g re g a te d mixing a re a s sho u ld be u sed w herever p o s s ib le . ( 3 ) When dry m ixing ia b e in g done r e s p ira to rs s h o u ld b e w orn u n le s s a m achine w ith a p ro p e rly - . <- d e sig n e d v e n tila tio n s y s te m i s a v a ila b le . P o r ta b le e x h a u s t v e n tila tio n s y s te m s a re a lre a d y in use in certain sh ip y a rd s. T h is procedure sh o u ld he extended. - ( 4 ) Where th e c u ttin g of m a te ria l co n ta in in g a s b e s to s la k e s p la c e it should he done w h en ev er possible in a se g reg a ted area where there is a free circulation of air. If continuous cutting of insulation m aterials is being carried out a portable hopper should he used for the c o lle ctio n of f a ll- o u t w n ste. M achines are a v a ila b le for ensuring d o st e x h au st a t a cutting bench. ( ) In the c a s e of s p ra y in g a s b e s t o s , the p r a c tic e to h e a d o p te d w ill depend on th e ty p e of equipm ent u se d . T h e v a rio u s ty p e s are d e fin e d in A pp en d ix 1. In a ll c a s e a th e A s b e s to s fibre m ust not be rem oved from the d u st-p ro o f sack s- in w hich it is sup p lied until t a fed into the m achines in th e prescribed m anner. sacks in order not to dam age them. C are should he exercised in handling the . . Tbe use of effective pre - treatm ent reducee the co n cen tratio n of dual to the level o b tain ab le by an efficien t e x h au st v en tilatio n system . Where p re -tre a te d fjbre ia used, praying w ith any typo of m achine may proceed without lim ita tio n s sa v e that the operators m ust, during C oni'd * * ' * e-'- ^^-c- * ~'->r > * ' ; o : t n e i e a _ : i e : , w t r a r o ^ r i v r ' 'z.zjtxLi, tsti--v eutuitii:;: marciaer; witnou ore - l t i-b k ero iao ec: a l - o- nsec n suact* - i 'i - . j f l '-rae ,p i^ ti% T e ; so rsi f - : iL acw et , D0. , . ac ,3!ir ; CCA,._ tat' trueraiari tra. t s a e t uo: nae improve! r t s t s rp-iiec wrtr ; ..cr l. - _- durmr arrrying tn c la- 31 m.ntue!. tnereeiLe.. -,s - ao: e a t s ine room unti, 30 c.ino ter t* :tr .r s -t ur-mitted. Cr.ce1 isrsn r; Wocrt ro o m s are o e io v ihs.CKK r e a . , r... v c . m e per eun m e c h a n ic a lv e n tila tio n m o st be proviaec to give twe air cnances per nom , and operator* moat wear aprrovec t e s s a a u rin i 3oro r in e a n c lor a t le a n t 30 m in u te s tn e r e a ite r . ia c is is w o ejn aa anti for one hoar thereafter* Otner trade* m ust not enter w niiat soray - (c) Non--v e n ti l a t e c m a c h in e s w ith out p r e - tre a tm e n t eq u ip m en t a h o u ld o n ly b e u s e d in s p a c e * exceeding 50,000 cub., ft., volume per gun; operators and other w orkers approaching w ithin 50 ft. of the m achine an d /o r the gun m ust w e ar. approved m asks during spraying and for 15 m in u te s a fte rw a rd s. Norm al v e n tila tio n by o p en w indow s is p e rm itte d . (6 ) Stripping of Materials Containing A sbestos. The area in which stripping tak es p lace should be c la ssifie d as a- segregated location and o p e ra tiv e s en g ag ed on s u c h .work sh o u ld w ear approved ty p e re e p ira to rs . <a) Where s i t e lo c a tio n p e rm its, p ro te c tiv e s h e e tin g ( d u s t he used to localize or iso late the working area. sh e e ts /p o ly th e n e shrouding . etc., ) should (b) - Wherever conditions perm it i.e .. on in sid e work -- power sta tio n s, s h ip s ' engine room s piping ^ and ducting inside buildings, portable industrial vacuum cle an e rs should be used during s tr ip ping op eratio n s and for c le an in g -u p purposes in the working area. (c) Where th e lag g in g is re c e p tiv e to s u c h trea tm e n t, w e ttin g prior to and during the rem oval of the m a te ria l sh o u ld he c a rrie d out# ( 7 ) Where o p e ra tio n s cov erin g m irin g , c u ttin g and sp ra y in g are c a rrie d out and w herever d u st c ab be inhaled, approved respirators should he used and m aintained as se t out below . - USE AND CARE OF RESPIRATORS. ' R espirators should be worn by all em ployees a t a ll tim es w hen: ( 1 ) Spraying a sb e sto s and feeding hoppers on sprayed asb esto s w ork. R espirators should he worn by both operator and atten d an t during the full period th a t work ia b e in g c arried out and by any em ployee rem aining in the dnaty atm osphere for a lim ited period after spraying operations have term inated. . C ont'd Vi p <, p 'Ll to. k ' --T;- ,rbv~t ' 'X flf tr* * UaX*"ALOt ccrKi4 a*Te t fc.cf, jrsntttc.. 9cnux.n/r o; *ni>eBtcfc.. l " : : i r ; r r " " L L r - " - * (3) Cerrying ont the follow ing operation. : - (>) -- -- - thyy b ae na d ina c o n jiilnneedd ^ ns p iaccBe as . 1 (b) ; " "tC,al3 " kc3lo or f " * `0- C'JUiag = 3 lC riaJa - - - t o . or an a d m ix tu re of ,, b e , t o . bv p o rta b le or oth=r power - ortven a .w e or e io ilar to o l.. X P o r.iilo or (c) T i n b r e ^ n g dow n for rem oval of lagging c o n ta in in g a s b e s t o e or an of ,, b a n t e r a c c u l a bo tenace^. ` ' rJUre ^ tkiS i8 ^ " d th - P l o y - e not without :e : ; h J x M E S C AL SUPERVISION O F _WORKERS. ( 1 ) All e m p l o,y e e . . e h o u ld be examinceud Cc lliirnJiecaallllvy an,,,d) r, a dj i-o io e nc a l,l,v b, ef,ore p o ss ib le a fle rv -v d a. c ertoiaiv witU,v ,u . - r be particularly , o . e e Pt ib l . ^ ^ ** , _ .<*ent or - as so- ** ( 2 ) P e n o d t c exam ination, ehould be made t h e r e .i t , annually if po_;bU. ( O N o te , on the Medical Examination of Worker, in the A s b e e to . Industry _ ( a . W1 report) a r. . v .i l a i l e a . a guide to doctor, concerned. ^ ^ ' TT , , ' " ( 4 ) N" W * ^ - d of ih . precau tio n , n e c t a r y in the in d e t r y . ( 5 ) A s y s te m of t e c o r d in g the e m p l o y a n t h isto ry of w orkers e n te rin g t>-e TV ] , , ndnstry or who have been employed In tbe i n a c t i o n ficinl. < " ^ -c.m g industry mi d be bene O ttober, 1965. *im crne:t .Cu:4r.r -S D?L. C - 1--men t>r*ou*c -ariJCL ou. i'ip it'L .:: ---- *r.t arr.i. fiC , . f v S t > e c u : p m e n i m a y c o n s i s * o ' fc i C , 68 " i , n c i ? * l " >ec wn,ch 16 imp-- ^ - T 6uii,c,cm ic p-- l 8SbCSl 8 dherc' -- w b ie: 6BIBV ^ m c t 5 u ; r - n t ,, v oi {re addmoc c, t c ^ ^ - = - arus.. T n t . =;ior-> Q0,, t:;;7 0e-;n: lc lnt w#; er' lBW 3" te 'e- * r* - b e n p a s s e c rnro ugr, tSl. `; ,p. at 6C" l S " lC Wn`M P - c , t5 '" ` r,n s - ~ w - * -- * - , u . * ( b ) Sel f-ventilating Machine. C">e in which the fan providing the *" m e gun draw s il8 oir supp]y vja " ,r 6trcarn in which the fibre is conveyed through the hose a path from the fibre hopper `he hoP ^ r being carried out onlv charging aperature. the charging Wnilst lhe s pmy machine fan is operating. ( c ) .Non--ventilated Machine. A " '"chine in which the aur B l? e &fD machine and which provides /or conveying the fibre i t induced being charged with fibre. do a ir movement away from the operaior'e from /ce a source when the outside the machine la r.