Document KGNXJ7wbJ2x0x3Vg9Z8edLKn2

FILE NAME: Metropolitan Life (ML) DATE: 1936 DOC#: ML011 DOCUMENT DESCRIPTION: Met Life Docs Part 2 re s o o fa*- ' x T / y / f' */> / AffiTOAL REPORT sitiha. CTD0ST8IAL M & m SBCH08 JL. J. McConnell, * Assistant Medical Director PBRSOMHEL OF STAFF Dr* W. J. McConnell^ Assistant Health Section Miss Eleanor Bantoul, Research Miss Anne Reilly, Secretary to Mi88 Anne Conway, Stenographer Medical Director, Assistant Dr. McConnell Director, Industrial Mr. J. Wo. Fehnel, Chemist-ln-Charge of Industrial Hygiene Laboratory Ur. Peter Petrick, Technician Mr. John J. Ferry, Assistant Chemist Mr. Austin Long, Assistant Chemist Mr. John Milesnick, Porter in the laboratory MAJOR SURVEY The survey of the asbestos plants and mines started in 1934- bas been ooncluded during 1936. This included a recheck survey of some of the plants to determine what improvements, if any, have been effected by the installation of certain equipment designed to control the dust, as well as a number of new plants, particularly on the Pacific Coast. Plants studied in 1936 were: J ohns-Manville Redwood City, Cal. Pittsburg, Cal. Los Angeles, Cal. Lompoc, Cal, General .Asbestos & Rubber Division of Raybestos-Uahhattan, Inc. North Charleston, S.C. X-rays of the chests of exposed workers were sent in to the Home Office for diagnosis. I n 1936 - 2570 X-rays were interpreted. Over, 3,200 X-rays of asbestos workers have been read in connection with the second asbestos study. X-RA1 INTERPRETATIONS In addition to the 2570 X-rays of asbestos workers interpreted during 1936 the American Car and Foundry Company has been continuing to send in for diagnosis X-rays of their foundry employees. During 1936, X-rays of 177 of their workers were interpreted. We have also been asked to diagnose X-rays from other Group policyholders sent to us by the Group Claim Section in connection with claims. SPECIAL RESEARCH A study was made to determine a method of entrapping mercury and a chemical method of estimation of mercury in the air of a storage battery plant. This was necessary due to the fact that all available methods dealt with the determination of mercury in either the metallic state or in the forms of a -3 - chloride or nitrate but not in the state of the oxide. Therefore, in order to determine the presence and concentration of mercuric oxide in the atmosphere of the plant in question a method giving concordant results was developed. The presence of. the oxides of nitrogen and their concentration in the fumes given off in acetylene welding were studied and a chemical method adapted which gave a true index. Settled dusts of typical industries were studied and measured to determine the percentages of the various sizes present that might be considered pathogenic. Various new atmospheric dust sampling devices were tried out under controlled conditions to determine their efficiency and comparison with the accepted standard method. Methods for the determination of mixtures of acid fumes and solvent vapors are in process of study and development. SPECIAL SERVICES A great variety of requests for information or assistance on indus trial hygiene subjects are received in this division. These are divided as follows: Baporta (Those requests requiring time and research to answer/ Group policyholders 64 Non-policyholders and 58 prospects Met. Life Ins. Co. and H.O. 13 135 Sneclal Inquiries (Those requests for which information was supplied but not considered as reports) Group policyholders Non-policyholders and prospects Met. Life Ins. Co. and H.O. 97 180 JUL 332 -4 - LABORATORI SURVEYS Included in the above number of special services are 2 surveys made by the Industrial Hygiene Laboratory* In analyzing the samples of atmospheric dusts, fumes and gases collected in the plants studied, 819 analyses were made in the laboratory. The classes of materials analyzed mere* silica and silicates metals (lead, zinc, copper, tin, mercury, etc.) fumes (lead, zinc, mercury, solvents such as amyl acetate, methyl alcohol, dichlorbenzine, tricresylphosphate, etc.) gases (carbon monoxide, sulphur dioxide, nitrous fumes, etc.) The companies studied by the laboratory represent a vide variety of industrial processes. Included are: floor coverings, pipe insulation and fire bride manufacture grey and malleable castings foundry asbestos fabricating plants public utilities heat resistant glass manufacture gas and combination range manufacture stainless steel and regular steel products such as open hearth, etc. glass manufacturing automobile radiators and car heaters paint manufacture railroad car specialties Alloy steel manufacture alkaline type storage battery manu facture china ware - hotel supply printing ink manufacture decaloomania bookkeeping book manufacture asbestos pipe insulation and magnesia blocks mining and milling diatomaceous earth gold mine oil well equipment These 2 surveys represent 8 more than mere made by the Industrial Hygiene Department of Connecticut during 1936. FIELD VISITS During the ya&r there mere 85 field visits, exclusive of visits for laboratory survey. Included in this figure are 75 interviews in the Home Office. ADDRESSES ASP 1EBTIHGS Dr. McConnell end other members of the division attended 17 meetings of modi and safety organizations and made addresses at 7 of these meetings. Forty- eight newspapers and other publications gave press notices to these addresses in 505 column inches. *$- KTHTRTTS The Industrial Hygiene laboratory held an exhibit at the American Medical Association meeting in Kansas City, Mo. In addition to a display of dust sampling equipment, 24 X-rays of chests of cases of first and second stages of silicosis and asbestosis, fungus infection, pneumoconiosis caused by exposure to amorphous silica were displayed. An exhibit was also held of these X-rays at the Graduate Fortnight of the Mew Xork Acadeagr of Medicine. Dr. Philip Pierson, Clinical Professor of Medicine at Stanford University School of Medicine exhibited this collection of X-rays at an exhibit held in California. PUBLICATIONS Three booklets of the Industrial Health Section were completely revised and printed during the year. These are: Physical Examinations in Industry Industrial Dental Service Protection of Workers in Welding Processes LITERATURE During the year 1936, 11,557 copies of publications were sent to Group policyholders and non-policyholders. O f these 94-09 were sent by Welfare Division order but the letter was sent from this section. LETTERS Incoming letters numbered 1,796; outgoing, 1,511 HOME OFFICE CONDITIONS In addition to field surveys of the Industrial Hygiene Laboratory, the Industrial Health Section has been of assistance to a number of divisions in the Home Office Buildings in studying their lighting and ventilating problems. In -6- connection with the use of carbon tetrachloride in certain divisions in the Home Office to clean type a study was made of the concentration of fumes escaping and recommendations were made of safe methods of handling this solvent. We have also assisted the Physician in Charge of our Sanatorium in analyzing for toxicity the paint used in some of the rooms at the Sanatorium. GROUP ACTUARIAL HEALTH CLAIMS We are continuing to assist the Group Actuarial Division in analyzing the experience of Groups whose claim experience has been unfavorable in order to ascertain the cause. In a number of instances, where the e l M a would Indicate a potential health hazard, we have found it necessary to visit these plants and make an inspection or survey. Reports of findings and recommendations of ways of controlling these hazards were submitted to the Actuarial Division in order to assist them in arriving at a decision regarding rates. In connection with the practice of having Group policyholders defray incidental expenses of surveys, these have amounted in 1936 to $3,4-06.20. $509.53 of this amount has been incurred but not yet billed. This is a credit against our travel account. ;M2H0SA K D D M f M L ~)32, ?/io . . The seek following Dr. Wheatley's, Hr. Sabauric's end ay visit tz Tbetford Minee, I returned to make studies of the dust con ditions is: 1. Hill end Mine of the Johnson Company 2. Hill of the Bell Company 3 Hill of the Asbestos Corporation 1 started these studies os Monday, October 2? end finished Thurscty, October 26. On Jridey, October 27 ana Saturday, October 23, I studied the sill ess factory of the Johns-Mnn-ville Company at Asbestos. On October 30 and 31 I studied operations in the plant of the A.C.J-.. Victor Company and the plant of Charles 1. froost Company on liove&ber 1, 1?AA. On Thursday, Hoveaber 2, 19AA I visited the plent of the General Steel Tteres, Ltd., e Group prospect, in Montreal, vith Supervisors irenk Roe of Montreal and Ray Campbell of Toronto. I made some observations end tests in this plant and vill give the report to Hr. Perry for delivery to the Group prospect. November Zit 19AZ la. Febnel, Chent austrial Hygiene Laboratory 4 F m <3tJO 0CMDITI0B3 M T m n ig f tim gfgA<wpapf c n n wi.twra ha lie. The following repart de study of dost conditions la the *Bridgeport and Stratiord# Conneottout pOLaate of the Baybastos Division of the Baybestos-Uanhattan, Ino, This study was oarrled on dazing Tebruary and March of 1950, ty th Industriai Health Sarrios of the Metropolitan Life Insnranoe Gonpaigr* It la the fourth unit in a series of stadias of the asbestos industry of the United States and Canada for the purpose of deteradalng the extent and nature of atnogpherlo pollution to whlah asbestos workers are asposed and whether there -oan be denonstrated any hanftfL effeots to suoh workers. This study inalados a United nanber of physloal exanlnations, the nature of the otidenoo derived fron whldh Is airrilwr to that obtained fron the third unit study (United -States Asbestos Division at Manheln, Permsylronia.) The operations of this ooapexgr era conducted in two plants, one at Bridgeport whiah mgages la tha wealing of brake-band lining and the treating and processing of the wane, and the other plant at Stratford Connecticut efaioh manufactures aided brake-hand lining olntoh disks and asbestos packing. ^ Sue yarn used for brake-band lining In the Bridgeport plant la supplied by the General Asbestos plant at Charleston., 8. G. i .... This plant consists principally -of one three-stony ballding with loons on three floors. Another two-story ballding is used far treating of brake-band saterlsl and for the laboratories. Post ecunts-were taken at representative points throughout the -weaving department. Althoughthe'yarn received at the Bridgeport plant baa received an oil traatnsnt the'yarn need for warp da usually again run through oil. The methods used la the collecting of dust samples and counting are Identicalwith those given in reports of other,plants of this ooqpaiy and as outlined in the Baited StatesPubliolealth Service Bulletin Vo. 144 Treasury Department B&shlngtan D.G. 7, U Stam r>|' 4mt jM r h t 3 m m ic ro n s K O *1 N <k * > Sl I S Or O 0! 3O B N Jf il U Io mthod of hnaldlfioatlon la used la this plant although different ulta for huaidlfing the air la certain departments ware laatallod for tasta. Dna to the large sise of the rooaa sufficient equipment had not he Installed to accurately aoconplish huddiftoatiaa. She dust counts with looatioaa Indicated are Hated la the following table. \ : i c 8m pis lo. 1 5 4 6 6 7 liBSfU fneiTO BOOMS i ^ :lBd`j&c4'ZlofiE& Building floor *0. 1. * m Xooefdoo. of-S^l> . * 5r4 loom at northeast oaraer of weave room \ 3rd Bataan loons #64 and #66 1 3rd Batfeaa.looms #74 and #76 1 3rd Between loons #30 and #31 3L 3rd . Between loons #70 and #71 ;1 Sid ^oon #65 Apf4K total Ooonta of Dost Partioles Weights of Bust in Milligrams nar atiMo Foot 956,170 25 2,515,725 .26 5,0*0,150 i .26 1,582,976 j .12 1,000,000 } .50 5,,576 .1 .19 : %:: . 10 U 13. 14 21 4 * 1 * l 1 1 :2nd` A$ilod-#44- Sad .Ber.tween. loo,m.s #69 and #40 m. Between Ioqb? #67 and #66 .'t,T- 1' ' ' 2nd Between loons #84 and #86 .Sod Between loons #26 and #27 2nd Between loops #9 and #10 2^000,000 .y 2,267,670 `* 6,504,548 1,764,706 997,850 t 4,468,085 ** \ .66 ' 22 .26 .27 .30 1 17 : :::WatS:ro6m:fdrbroad oloth 2,127*669 .26 16 i 1st Warp naohines #264 and #265 6,904,762 56 16 i 1st tfadhina at left hand corner of rooa 2f466.666 ________ *___________ u CJ These counts are not sxoesaive, bat it wet be reneabered that the preparation and nanufaoturing of the 70m involving the handling of the Taw material la not performed in tibia plant. JLs the material approach es the finished prooesses, as it does in this plant, idle dustiness bsoones Brake-band aariag in 4ke .Bridgeport pleat* r> Arurfchar r l w f tt rm *T t g r a m e t t i Iririgtpgrfc r-' y m STRlTffiffn FLUET .t/-.. This plant consists of twoone-stoiy brick bnUdlsgsf ou h^nmimg the nolded breke-band lining and olntah disk nanafaotariag, the'Other the senufaotnrlag of aabestoa paoking-mteriaX Thla latter operationds isolated dne to the nee 6f inflaeaable solTenta. Paper palp oonblned nlth esbeetoe fibre end various binding nateriala, sash as starah, are need in the nurafaotnrlng of the nolded brake-band lining. la the nanafaotgre of the aabestoa .torfui the aabestoa fibres are oosblned vith robber end other bindere dissolvedda gasoline. On aooount of the vapors nhloh are quite evidentda*this dpartaient, it was oaa-- eidered inwdviaabla to operate.the. noter.need Oadhe paap for.'colleoting air aanples beoanee of the pniwiMlity of enploaion. .Post anif*1aM vere taken therefore only at the two other.apparaatdnatjrproeaaaeaj rarely the rising of the palp and the grinding of the olntob daoe disks. TTheae ooonta are given in the foUoring table. O T . " 1I. Saaple Building Ma il ihla & Ibis 1BU5 &L mmmusm^SLei looatlon of 3aapl * Briadint poratioa <a th lnolsnati aahla Pajear xtag. Osntar naahine fi . Total oooia o ' leigkt of Doat ba&fc. P&ptlciea la ttUligraaa 664,698 % t r- ' 829,916. r Ci -Il- - 3 - - 14- iffieiSM, r o m a n e Physical examinations mare rede on ninety-one employee*. This group included all those who had been engaged da "the asbestos industry for & period of three years or longer,'and Included employees fra both the Bridgeport and Stratford plants. ill signs and syxptoBS, usually associated with what English authorities ter "ashestosis*, werelisted when found. .these inelude anorexia, leaden-hued complexion, emaciation, dyspnoea, cyanosis, cough, ex pectoration, "asbestos oorns, decrease in eheat expansion, clubbing of r fingers, swelling of akin at the nails, and history of sheet troubles. Uhe \ chests of these employees were then entwined for friction rubs, rales, dull- < ' nsss, diminished breath sounds, and inoreased Toioe sounds. She notion of inorganic dust upon the lung tissue is to cause the development of fibrous tissue - fibrosis. .Such dust fibroses are classi fied under the general tern pueumooaniosis. She various types of pneumoco nioses are differentiated by sore speoifio titles'which define themselves, such as silicosis, anthraoosis, and aSbestosis. Theseconditions can be satisfactorily demonstrated only by X*sy. Twelve esgxLoyees-were selected farX-ray examination. The films of three of these vrers unsatisfactory. LXhe following table analyses the occupational history.andX-ray.diagnosis of the remaining nine. --35-- - . O JLu SaoL. ;ig a X ; M : 58 : M : *7 f m : e 4 ; h : 45 5 : h : 44 6 ' H : 45 7 : M : so 6 . M : 55 8 U '68 pmtz* SomuaiJLnaail I t s ! fearer -- 9 years fearer - 6 years fearer -- 8 years fearer - 9 years TorM" - i y " " fearer - 10 .years. " fearer - 8 years . fearer - 1 years * Slerator operator -- 9 years Zftngnnalfl Early first degree asbestoses Eeg&tlre Early asbeatosls "li1 a '*-r legatire -reeant pleurisy i first degree asbcBtogla it i M x u m x l a m of the roil of Ute aorta. ; , I Segatire j Segatire falladranoed first degree asbeetools. first degree asbeatosls 'i u X study of this table reveals that the X-ray films of five sen , showed the characteristic appearance of dust -fibrosis. Your were rated negative and it should be noted here that In these studies, share X-ray films sere secured, all doubtful oases sere tfiassed as -negative, the diagnosis being given as positive for dust fibrosis only shore the evidence sas un mistakable. Hone of these five oases of asbestosis presented evidenoe of ttiberonlosie shich lends support to the contention that the of asbestos dnst does not tend to activate tuberculosis. She number of oases i -in this study is too snail to draw any sweeping or definite oonelnslons. i smiMftgr The dnst ooonta in this -study are relatively low. X-ray films of five out of nine men selected from those physically examined revealed typical dust fibrosis. The number of years exposure to gether with the X-ray appearances tends to confirm the -impression that the action of asbestos dust upon the lungs dLs to cause a mild fibrosis. Vhat the end results of tills type of fibrosis are we are not yet In a position to state, 1 That tfce weave rooms be humidified. This procedure will not only decrease the number of breakages In the yarn, bat will assist in allay ing the dust. $ That (Leaning be dene by Keans of a vaooxoi system Instead of the present method of blowing with compressed air. Portable vacuum units are sold on the market. ZK That the dost be exhausted at the source of azdglnfWhere possible, l end drawn away from the breathing level of the operator. 4. That all employees be given an Initial physical examination and periodically thereafter. X-ray examinations should be made when indicated. > ****- jm A RAYBE5T0S - MANHATTAN. INC BRIIGEPORT AND STRATFORD PLANTS This survey was made on the 24-th, 25th, and 26th of March, 1936. t BRIDGEPORT PLANT It is evident from the dust counts of this survey that the dust conditions of the weave rooms have been improved. The change from the dry binder to wet binder is the reason for this improvement. This survey was made under winter conditions with most of the windows closed. Comparing the survey of 1935 and that of 1936 other facts are noticed. At the time of the 1935 survey, seven looms were running on the third floor as compared with four at the time of the 1936 eurvey. There were fewer looms running on the second floor at the time of the 1936 survey than were running during the 1935 survey. The dust concentrations at the warp machines may vary to a con siderable extent depending upon the moisture content of the y a m , the speed at which the machines are operating, and the amount of natural ventilation; . however, the operators have been supplied with approved respirators for pro tection against the dust generated. The condition of the Brake Department ha6 been improved by the 1 removal of the drill presses. 'v-,* . .... * The exhaust hood of the Pratt and Whitney Grinder has Iso been improved Table #1 shows results of 1936 survey Table #2 - shows comparative results, of identical locations or operations of survey of 1935 and survey of 1936. -- * _____________ H ; , , Ekiht'l B . ftllH i K k* u -p l c rs>. 1. 2. 34. 5. 7. 8. 6. 9. II. 5. 10 * ,* SriTiO fi 0Tt 2ms r u n * - acme* looms 22? 2 2 7 2 uo flo o r - e n te r* looms *634 230 2*o rio o * - a t toon f t * - A T LOCO ,"220 * " - sen te* loom* m &38 & 0 2 n FLOOR - AT IkSFCCTIOtt TACLC Cu. f t . 40 .0 37.5 7.1 3 .* < 2.2 * - AT LOC'I m 1s t f a ' s * - e c m e * te e v s 82 AiS ; i j 1 s t FlOCR - CAAF *00 irr< c< *s c o r * tm & c fts 1s t t l o o * - * J * * l.'lCHIHt - R U * AT FA S T s f c c o . 10 -0 - 1 e a r s ':. U r FLOCS-SAAF A C O U 'itB F ' * V A C H ir .c 1 6 - 10 3 3 UOLC Vz5/$ 1 s t FLOOR - Br a r c c t F M t u t n T v 6 v 5 5 ftea.EH&L A I I I <2 .3 4 ?.6 50.9 27. 26.8 4 2 .2 mtDSSPCBT PtA*\T - TABLE #1-i UlLLION OF FARTiei.CS P t * CU . F T . o r AIR SAUPLtO .9 0 S Tree or P)ST M ICITM 1.2 7 J .8 5 l.l 7 1 .4 r 3. >1 lU ft ASICSTOS i 1.6 1 1.2 7 .3 / S 5.8 'ik * * u V e .rT . * u c / a iji 000 000 . ak/ I O h r . o a t 000 17 .1 u .9 0 RJU C( U K IM ft . 0 0 4 2 ? . 01? 0 .15 CLUTCH n c t M S it CU> LOCKS 3 3 4 3 1 out LKVS jS ? & 37 010 L i e r .O J o l o t o e x s #6 2 63 systcv S iu f 5 ?c:c * !C22 - S TARN ic y - - rattc. '"3* " , ` t CCRRSXFS--SS TO - 2 1 * l> 4 C M M ) tC A w tt **rc*s s o T 3 c p a s .TN lo S tiP P u ca r t * * * * presses 0 t t L * * S C S t*OVD TO sn u r/^ 3 . i- * r a- S rfP L C >2* 13* 14. S to r io :* |J T n.O OH -"Kt HCAARTUCHT a t'P hatt I n i n t r ninticn m t LiAiKS 3 *D A * t e n e r li UMUS 39 * 3 2 e r .W A i t i K a c u loom $ > 9 M l. g y .rr 32*9 4 7.9 452 :r .-: *'. BBtDSEPCflT Pt/CT - TABLE #1 Ij UION* OF MOTI cuts > cu. FT* OF AIA lUfLCO l OQHTiwra) n r t or oust Le o Re*ult* w^/curr* S/CU.U uq/ io ha. oat 2.3 M MAKf LIMING 4.6 V 3.3 ASUSTO .RftSKJ c**<iusr *<ooo iw.MOVED SI KCt MEVtOtl* SOftVCV OLE UCVS /CO *9 4 ttOtl HU.MIkC osi 3*n njocn ! Survey of March, 1936 Sample Humber 2nd Floor 3 1 2 A 7 3rd Floor 13 1A 1st Floor 6 11 9 Department 10 12 BRIDGEPORT PLANT - TABLE #2 Dust Count in Millions of Particles per cu. ft. of air sampled Survey of June, 1935 Sample Humber Dust Cou Millions per cu. i panroled .85 .90 1.2 1.1 3.6 . 12 7 . 34 11 15 9.9 3.6 4-5 3.5 9.6 4.6 A 6.1 3.3 8 5.4 1.2 16 2.5 5.8 19 3.3 1.3 25 2.6 .90 2.3 18 29 / 1.3 . 2.2 Remarks Loom #10 removed since 1935 survey. Loom #68 not running 1935 survey Old No. 2(30 (31 (29 (37 9 New No.' .225 227 234 236 25 220 (62 (63 82 238 - 240 .......... -- $3 45 -- 69 319 _ 321 No* Stiaces Size 16 2 X 5/32 16 2 X 5/32 12 2 x 196 12 2 X 196 3 13/4 * 1/4 4 2%x 3 1 7/8 X 1/8 5 1 7/8 X 133 3 1 11/16 X 133 3 1 13/16 X 133 12 2 X 3/16 12 2 X 3/16 1 2| X 5 A 6 1 3 X 5/16 2 5 X 5/16 1 94 X 1 1 9 3/4x1 2 3 xi 1 3 4 X i 20 li X 1/8 20 1 X 1/8 Type Type of Yarn B 50 E B 50 E Wet Binder & Filling-- (1032 Mule & Jute B It It ( 154 W04 154 W04 BPT. BPT. Stuffed Binder & Filling (1030 - 1 Cotton n inn (1032 - 1 C.C. Wet Binder & Filling it n (1033 - Mule (IO32 - Mule (IO30 - 1 Cot. (1033 - 1 Cot. Z-120 Z-120 2-120 Z-120 Rayb. Rayb. Stuffed Binder & Wet Filling (1033 - Mule B B S " (1030 - 1 Cot. n b n (1032 - L C Z bb n (1032 - Z Wet Binder & Filling B B B 8 (IO32 - Mule (1030 - 1 Cot. F.W. F.W. F.W. Wet Binder & Filling n BB B b .n n b Mo Hire No Hire Bpt. Bpt. Bpt. R.S R.S Dry Dry Wet Binder & Filling n n n b * 'B B (I Wet Binder & P illin g nas n (1030 - 1 Cot. (1033 - 1 Cot. (1030 - 2 Cot. (1032 - 1 Cot. Zino (IO3O - 2 Cot. (IO9O - Rope (1033 - Mule (1033 - 1 Cot. (1032 - Buie STRATFORD PLANT The samples taken during this survey show improvement in 'most of the locations. * The duct concentration round the boaLore m y vary with the amount of raw material used. The heater room should be separated from the rest of the plant to guard against the pollution of the atmosphere of other sections of the building. The heater used in making pulp which containslitharge should be in a separate room from the others and employees should be required to wear approved respirators. The dust concentrations at the Blanchard Grinders, Cincinati Grinder, external grinders, and internal grinders, is probably caused more by the handling of the material than by the machines. Dust can be seen rising from the stacks of rings when they are moved. The employees at these machines have been supplied with approved respirators. The approval should be for lead dust as well as other dusts. The exhaust equipment installed since the 1935 survey has' improved dust conditions in that section of the building and around those machines that have exhaust hoods connected to it. Sample #25 shows a very high count. This work is done on all dutchfacing rings. The dustgenerated tends to pollute the atmosphere of the entire inspection room. This work should be done in a separate room or an enclosure that has an exhaust system installed to remove the dust generated. The em ployees doing this work should be supplied with positive pressure respirators supplied with clean air. * Sample #1, taken in the fibre room of #6 Department, is high. The shaker screen should be -enclosed; however, there is only one employee working in this room, and he. ia auppliod with a respirator which ia adequate * protection provided that it is maintained properly and used. Table #3 shows results of 1936 survey. Table #4 shows comparative results of identical locations or operations e? survey ef 1935 end survey ef 1936 '*., ,*.' *VT.1r*** , , ' .V ;,r \ V. i mb rtm > M i Survey of March, 1936 Sample Number 2 3 6 144 7 . 8 9 11 12 15 16 17 18 23 19 STRATFORD PLAHT - TABLE L Dust Count in Millions of Particles per cu. ft. of air sampled Survey of June, 1935 Sample Number Dust Count in Millions of Particles per cu. ft. of air sampled .94 -73 2.8 2 2.3 4 2.6 - 3.2 12 4.4 4-5 13 1*4 * 1.4 18 6.5 3.5 22 2.6 2.7 20 1.4 3.0 14 1.8- 1.9 27 4.1 4.7 30 12.8 2.0 1.6 .94 1.3 1.4 24 32 28 26 ' 16 1.9 2.3 1.8 12.0 1.4 Remarks Sm'Pic K>. I. 2. 35. 4. 6. 7- 8. 9. 10. U. 12. 13* SWIOK > rt . iV Sent. FlW t - S H A * t ft 3CRCCR M cpfHtn tmKW* rtrtEtu vixens / I I . 12. 14. x 15 i t m t i i vixens ,,, 5,17. 0 i IS u tio tiii: u s w u r*.oH snuv t c n*i OH i i x t t 4 S a v n it iO into uiH . I? Fil l i >is eexten ;2 a t **tst m a i r c s or c m is - e r r i At cla/.c- aRD /I m cui?.'* rACiRtt.Ain:* t x'jtOLCsiLt w i u mess r(0 At c : r c i\ati CRi\tiR fCC C^RC RIRGS ustimw Atrto* rea' m AAtftMtl haRCHEAS Q\*Ul AIK - tCt*U t0 m callcksgas .xt i ' . t L enisaen H 0 uc.ixe _ AT STC3FASTHI0UL8TQM OUftCCA hacking C4 So. F t. 52.6 to* 52.6 7.5 76.0 32.6 3-0 23.8 53.6 2 8 .1 3 1.6 40.6 55.4 STRATFORDPU'.T- TA5LER time* or Pmicus Pm Cj. Ft. er air *VPLtO Ttrt or Out Lr*oR e s u l t s v z / c u .u . V C / t Q HA DAT (9.0 9+ .73 6.4 *.5 2 .e 1.4 3.5 2.7 1.6 3-0 1.9 c J V t v* it / VI (P r n it - 1.2 1 ASBESTOS asbestos LCD Lao .000348 000 .00 127 .0 123 000 .0 6 6 asbestos CLUTCH FACIHG 000 000 00 .00243 . 000 000 000 000 ASOESTO* CLUTCH FACIRS .0003*5 .0 12 2 BRAKE* LtMIRS 003 coo 0 .12 3 oco 0 .6 6 000 0.252 000 000 0 .12 2 000 \ ficr* 14 , V. f|AC fALLIf.G INTO NALft TRUCKS * 0 &** BjRES AAD STAC?* FI ACS c *i U SKID tlHi.CS I HCSFfftrcR owe V A H .0 CSF(FTCA CIm au ST.ASPlAftfG* p~ :v V CR(ACAC LIRIKC TO i 4 , . * .. ' i' t .^ * . ** I I SAUPU *0 . 14. 15i. 716. 920* 21. 22. 23- 24. 2?. S?atic\ 3>re 4V AS 3 o u r TJU K a t me* } i? 3 /^ 36 HTttH PUVCM Att GAINTMS jU ij At *A1tt* -" C . f ig C LT S*'.tA A t SA N K :V2 A t t\npl VAC* -C o CtC*AL lff - IA S * C n ,'V AM) J H | W | f . CCT* A t A.T.**VATIC m i t , A C S , m A'ACH* JCS* . AT **A PC* *130 GA1MMK3 m c& as c r ;u *e U K t2 AT * 9 * t T U \ TAfilC - C tttK H Ta c i* a t c x r c t y t saikoca vash* JC s J ViTXCf. *>-( / I l Af.c m A N tC A .II" T A p rifiJ A t*.cs - IAS*6Tt0tt TOA CftA<Cfi RINAS Cu. ?r 34.0 43*0 21.6 28.6 3 8 .? 39.1 55.5 27.7 35-9 38.6 31.5 26.8 a O r St^AtrOKa Flaht - Ta*u ( coktinucd) UtLLtONft o r OMflCLO fc* co* rr. e r aio *4vru Ttrt or mr lem RrijLTj 'cu.rT. ug/ o j .u 3-2 ' f M tirot 4.7 r A 2.0 z' BftICE ItYlHS .000326 ctorc** ra c i n o m a k e limino 000 4)115 000 us/lQ Hit. c w 0.115 000 ). y 54 000 .000727 000 .0 2 57 000 0 .2 5 7 1.4 .62 i CLdTCH TACIMO eoo . 000 000 MA* LIMI 000 000 000 3.y V I 4 y VJ 3 r 2.1 2.1 m 000 CtdtCH rAClNtt MINOS SMAltC LIMINO .0 0 0 7 .00 036 3 MINO .0 0 0 6 6 6 .00261 OOO . 000 .026 0.26 .0126 0.126 .0 3 13 .0 9 2 1 0 .2 13 0.921 fle-.a* . '. V , eroe a^n.c*t*AU5T Z uti~.r*MCiT Clt ' !.. * OMC * 4I..I IH. La- rmo lai sai rent aie tM.o^Aosr A OLSk " TC t CH **...*N X A 05 IN PNC.-.-a;s L.nvcv. ora ArfVT 4;C --Al* V* AC* .-ACM. Cxihac.T ca * Cn c tu.. X* USUiiUmsSBSSSSSmm ! V-' o ? / * $/ i'tliVi.liliii'.rt, Xii'tA A third curvty of tl'.Is pLnt ros condxcted on October ir iJ5 ond 16, 1959 by th Industrial tioRlth Cctln of the Metropoli ton Life Inavir&nce Company, ha two proviou* urvoy hnd b**n '.do during rch, 17 "0 t.ad Jane, 1935. Thio plftnt io eng&gad in the nr.iwf'sCtuvo of pivckin^, gr.iot, i'tid hr's* linings Since the previo turvoy thi wovon braSct lining proc'SffiS' hBVO been i i w i n a U U find now proeaeuf h<.vo boon i n e U l U d , * * W I I Iptlu'hf-h ~- f*'-*-1--*! .V. .1 2r.-ji TUte piont is honied in ft nar.hor of ont rr.1 ctory iric/. ;.-uiIfing? of tr.odi-rri ooi,.:-U'Ov'i.l:n. i-vl? rulur-l iV.wvlr.-Hon v. r t t l t U n in/: ...il'.'.d ty nun-:rou*' cldc t<>ii tiniovs .rtd cV:yl.li.htr. Offic-K *:? loc11c ! in p:p-.r'to baHain^t oport froa the Kf.nuf.'-cturinff dap^rtzaatif* U `t>> ]&: , 13. liiiLsl It) this building ehoet peeking 1 fro.n Khlcb bn-ke lining gftiskotut end puoklng t o eUnpad or out* si&c&aa J&ja ebwatos ue*d in <!?t pnckitts la prepr-rod for nee in u crurhftr and ojxsnor* Tho ecba/itoe in grided on ncrccno* Th esb'istop >:p?-ing through tho opanor is dusped on the floor and then tu-nd shoveled into tbs opener. Yho opened sbectoe is- than convyyvd by sir to hopper on tho roof end dropr,t-`d through pipes Into tho grading ocroanf or directly Into a Uvni truck* ;crp B&tori&l is groujv.} in ft pulvt*riaer, then convoyed by eir to hoppera on tho roof odd dx'oppod through pips directly into beg. Th* Ion** opirntor in thin rooa is euppliod *ith tn Approved duct rocpirtor* ?hif rooa o?<nt directly into th dry old mix roam and the moin nixing; uvi roll roow. fines the previous eurvoy, th tiulpaent in this rooa hoo boon in?rovd. Stopl 6 of 1935 rvrvty snd uaaplo 3 of tho pro taut Purvey ehotr th-t good results hov boon vttftlnftd* lio. Eall S i x & m t KfcttrUl for the, dry nold nix it. b*nd ecoopwd froa original con- tinert cad duapod into ft b*.rrol on ft rocH o . JJont of th* *t* r U l s used '<r<s ki.pt in lo o t d y cov: r**> or uuoovt/iw'i e.jr;t.' lr'. . i-fi'-r th l-U i; ir. ti* opor*tor Ofcrrio th b errei up c flig h t of oUir*; t/> n al:, tia ra mi- -.'u.-.ir th* batch in to thw aixsr* The miy.ed bMich ir, thr.n drori^cn irci' tlu> K'tt-.n or th* w i::ir i t r u c k . T h e !* I r . Ln th,*/* e v . * -- \ n *.-.b . v v r , e* l i t > , r -o in , A..',tlcii!.vr ( n i ' e t i c i * r) -.ad ?cr:';j. T* r- b-'-.r ,.. 1:,? v>d in thl rooau At UVi t i s i oi eampliar no o f *.hcs i l i *.*t. tm'. The r.bbr l i throwr cruur.c ih:. l'Loov e-.ft-:rlH if, :'. u r. -iv' itrc. vr-li-blti io vh.: op,'.retar but i t v- 't- not.<! ih tth* />,rn lf ' tor * ' n;t ' .-rii.. ^ &o w h a ia t qulpasnt it. u*cd m th lf dop irtaont. lulkix .Eaaa Thia roera i lo ceted e t on pn? o f Ih bulliUc.! piv5 o r a r ir*.o th mi*in# *a3 r o li renai. The oporotlona in thl# rena or lu ter a i tt*nt astefeo co&tfti&lng lorgo iUMititit,* o f lith e r a e (iS .l fr-o la.'} ?nd Rie- *ra v*lf'hftij cut frow o r is ia a l contrlr.ors in to a pi:n on c e r io . The ale* iw r<-o*ivrf In bu-.-n* Ihouo bs\;t# *.r 1 1 1 - on ih* floor*. I t . s e e noticod th*t dorina th 'l>;hing Cinifior*bli quantiU o f Ih' llthor;** *r.d ttittfc *urc fcpillod upoa th rea! uni flo o r *h*r* they are ulltn-rJ t recu.la u o t il d o s e to th ad o f th<? c h i l i . The* floorr, ord acni: v::r*; th.va ciren ei fcy dry caeapin^# The floaplvte batch contdr. llq u id W-selLt, fuLrhur, d e , ebeotos-, lith e r g o , roclor., corca end rubo?? 7h* perenni oX lith v r ;.e 1 tho bfctch verte. froa 30 to 35* tao ishccS I^tch i s th<*n truci:; to tho niar-rr in to fchtch i t ia oum .ed md miy>td v-lth q* f:ilLr,c oad r tb f tlo r . Vh op< r-to r vorkinj ln thii* dspr.rtSftnt hvit bo.*n t>t uw tla o pvnpltnd ^Lt!l e du 't tor but prciv-rrto to vsrk v it t o ut i t , c.-.-npl^inlng th rt i t Utrrf^r^d *dt.h hlo nlao t.-.it.- i t r- <: too hot. for comfort* Tl.i: .*o : t 11* l-* Uuh beva Htic*"** ^t t'.iv t.orVc fo r #bout r./vor. yvwrp. L.u*.vJUj-d jIQm jj.xL.mic o In tb l/ ci: ,i::rt^'..nt the b:.tO.V.`S .r I :<*. 1*?: 1.21j in r l o '-cl n.lM*rf. X'.k- t:*!.* fo il '.'t;'- i t roll.'-.! to th dal.rc tliiokn'-er> it o i *hct r o lls th'* r.Kt*rJ.-' 1 i.* r.vi .'i.':j . u.U icr l.-hicr. >::,.?. th. i.ir. ti <' ) v l .-yth., f uacd la rcovcr:<J ia * co&cU.nr?r locetkd tr. th<> room* -Yo-n ihv sbi-.rti:, rlttyo, aoitets t>uC .Citing *ro out on ftw.ohinen On t i o f the buiLUirtij 1; us>d for to w tc o f rii* si.t.orl!* lift jttiJuiiLUiii# X^aait* xil - imiXiiia:?. Aftbostoe bMrd uoJ In anting clutch fo cin g *i a ants ria l c e lle d LB la tfiftov la till dopwrtacat crop a r te r ia l *ni new fcobasto t.rv h.n4 tiuOid in to pop-ir beetrc nixffd with *t.tor t-M Ktoroh 4*si or*-<5 to the proper conn latency* The pulp ia then pcesod through the r o l l t bo tho required thicknur:. The LS astoris.L wnirh io composed o f ioboatoe# otonired c&toUlo l `d, u lu s, gilr-oaH v, grsp h lU , end scrap mro mixed in t bofebr tad the pulp puao#ft to atoro/rn tr.ni<! on t. piece o f C'-robo&rd on tho flo o r In fro n t o f th b atter *ad 1 sieved Into tbs pal? by hr Pi shov.>lln into e s ie v e ro ttin g oo the top o f the b to r * The wet oulp ir run fro the bvstsrs to etoru^fr UnXa* fr? the etorfrjio tHil* tht* vet. pul? I' run into trov. -4 (c o ffin e ) bore th* *.nt*r ic drolnod out, l i v i n g th* aotid vntor-Ul in th tr o u ju The. #?Hc siAtarlui i& theu trin tf rn .d to - b-.j.Ud profs viv.r* i t ic prataed to rc-4uird Uilcfcncrf, re ovad cut. Into ftr lp s by lie n--; f t rt.e cotfld th at tb opurotor hen-ill;; the *tcalst-'i lev.'* x.1 f. otvfe'-c U cl>r proxlalty did not r;>ir-*toro. mumi 2 1 * iib -'f.to c bo-rd ie cut to t i r e fo r th punch in, s-reiiJn-, I-.c - .c are Pt&a;>*0 o u t on achine* by acn *-n< i-lpsd vnd tte<:V.d en fticlei! 17 : ' r l ? . The eoapoeitlon o f th is b>erd lar p r a c tic a lly 95 or nor c c b is to s . lL Feeing*1 t-To curt'd tvJ tr.en fln lfh ;. Th< fin ish in g ori-T&tion?. includ* grinding surf&aoe fend edge on Bl&uchsrd, C incinnati and cyLindar grindvrej d r illin g and hot b la stin g . A ll soohlnod In thi* depprtv^nt mo eculppid * ltb cxhfcUtt *y*te*. On tho lanchard grind? t-nd d r i l l In.: operations these exhaust eyetoa .tro i.uaatcd by the uso o f C0pr*sG.-d a ir . At the tipn o f thl feurvey, the coapresou-d &lr lin o on the grinder, a'.chino / V'-', pie 19, bad boon aovad out o f p o sitio n , causing puffo o f d u st to b dispersed into the etaa^phero vdth ooch revolution o f the grludor. Thlo condition v read ily reaodiod *.ftor atten tio n had been co lled to the cotwiltion. Conid rabie dur-t ndherlng to the clutch facing i dispensed Into the fttRorpherc vhen loading the nochlnoe end restocking the feeing on the sh ip s. So provision le .'do to en trap the dost e t three point. Xlcz Sl4 Tble 1 fr no* operation. TU nlxture for th is operation lr- ni.de in bu ild in g 6 . At the tl* o f th is survey achino* vrro buing in st li d or renovated, eo th at te sta te le n a t th l opre.tl?n eould not h*vv b ^ n roorosont- tiv*>. Therefor, no test *rc o*de* Ur^ald The aaterixi used in the e l r c E - o l d batch .-r sir*." In ss:.!! ai-fi-ft am BlBnWMBI - 6- ` In tt pr.ptltlonfd arm on t-h* ainlo flo o r . The i f at<rL?-ls Inciu'* i-rbjEtofl, hrrdvood pitch, c-uirhur* LipblHc!s# graphite* M bentluo, pordcmc! olt.-> l ,,d vni ii;d>x o il* Thr b*rdxood pitch iz run through t g r in 'c r /our tl^K-s to tb Qoired The pitch It- h'-nd (cospod fro-1"* th*> conir lr.r Into th- :rln 5,>r* T tls grinder 1ft .inclosed *.n-S o>nut>d.* Thn poadoritd ch it* ie.vh* m? v*;ll -t- Uu pitch <nd index, o i l s , ire kept Id opn b-rrslr, J u ft o u tsii-' *0 p a rtitio n on th .-r.i.in floor The compounded batch if- uju'O on the Ir'.'aoli c>chine ih lch in rlr-o loca ted in th is partition* The eon on.'f.s;aci ut hitch atin<[ * fc-r duct rvsplritor?* bub tU* *n At th<* (.chino t\ ov fo t fran the nij.ur ore not to protected. The. niyod a i t v r i t l 1a pr.iosvd trounc b vir* backing *nd le un<5 to "ki. breke lining* In feraction fat, &dveneed that pli.no and upproprlotions have been 'da to provide duet control t t thea* operations LVtp.tR .7:1 and 2L - fc?.ld;.d. .c.nd Hultliag .RraVa fcoldcd end rubber broke lining* *r<* finiihod in th-ero drporty.'ictf-. Th# opcrntlona consist of grinding and drilling* All nochinoo* v.ith th*> ercep- tlo n o f * fu* o tttli d r i l l proem* ((tcchlm** 3$0 577 $nd 9?) ere e>hcuet!>d % liaat j!21 - 2. ? x m l n & In tbit department LB breke lining io khopfed tni proievd in ac-n- drols 8opetono io ft*nd dusted to prevent th* liningr. froo sticking Tho operator on this job *^&ro on approved dust reeplrotor *tur.n.nt fiaan The dope* used on the brk lin in g * end clu tc h fTtclngi* *r* or*per*! and atori-d In a "ptiroto brick build Ins* AH solvents* arc k tp t <nd prep*, red In closed tenkr. Tho mi>in eolvente u>` d ru sjrlo l, forld*hydo, e re * y lie ncld fcttJ (`Cfcton,.* Tho tCvtone ic- rtored- in tf nt o u tslr t the- buMCin < The Of>:r.tioii fera la th- fOti.'n o f thc <atu boil.:la-; Anplc p.bhtni; f.rui t o i U t fu e lU tic b fer.*' r'ovlii'i. Irtcurln.; w.tr Je upilli`d fro chanLcfcliy cooled bubbler fcuntuins* i r*f tsurent le cv.il.'bo to 6 l l esployeec A f t r e i *id t*oao undr tho 2lrt:rtion o i u ll tin * runz ift u l U in w d . Boueekcoping in oOfersl if. god* Al.'.lee e>rc *>-11 diflr.< srid aro kopt fret fron obctruotloan. Vccuwa c W n l n x le euployed on th ruftrrs* K6ll wid floor* in tht afcin building It lu plunned to xtond tbir to othr building* fety ja8tings nr held onco r vofk, ni vhich tise thc`expio?**;* reprsrenUtivee, a il *6 th<*'foro".n, *r prtent tn tfcko i-n fcctivr p*rt in the prooo<lng#. ngnt.u;: p^, tj-apuiKfl ,.i. /.aum oolvcnt fueK*e Ith th int'>rl*`r*o'tor r-t tbe> brc.:*tbnp l<w*i of the vorknrn 6t repreiontfttiw opcx'ctlonc, Th' intcrfero,.*.`.t''r le <n Lntrur.'*nt rioiilgnfd for u*' in ut`U*ctlng ftfiert *nd Yi.poru Tho inpin.pir, .v>;lo:)*i by thr nit-d ttti Public Kc&ith urvicc, ie tbe it>'-n**rd mathoi urAd In thl* cour.try. Air ..rV,?v tvfc.;. (l)U .- T aollc xi>-r,l.th i.-r v lc c , <'u Contr! oi' I n '-a e tr iii lu r t , JJ. -Q~ The tubo end* in o oonctrictcd o r iflo o under tho .Yurfcee of d i r t l U f i vrtor conUinuU In R flu ii. h o r fic e t-nd inpin;; upon t jilii'.jsr plto .iiicr br*.u&u u.i t.ii <-5.r traci*., I;t'. Ih* cu st rvioLr : oc * v o t end catrp*ti<A in tan u.t e r in thu il.-: Se. icohol i 'dded to th c*spl t>n-t pret'TVtivfr to In h ib U.t t,oLu- t l l </f ih-- firt oi.*o to ;, r*-vi.nt th - m .,n or' *1-' t-.*v Of the fine p o r t i e r e by cluplngf* Auction is> nuppii/rfl fa r d u r in g Ilio o lr strspl through ih* la p in e r by o f no Jector, or rlw on le c t r lc t ll y driven ?uap her* <m*'rvr,*v'<5 Rir i r not .v&LLibl.' to eotuefc the irpinger Tfco duct counts ero &fcdo by the smthoir. *nd tichntoucr devo loped end uiod by th-si United f t i - t 1*# 1`u b lie Health S erv ice. Th follow in g ta b le o ffer coapcrtcott o f the r e s u lts of orv^lyfi* of rcnpl* taken ft id e n tic a l lo c a tio n s for the 1935 nod i? ;9 uvv'-ys. * ehestor c in volved e t p reotlor.ily 11 op* r e tie n e , durt count# re giren se to t* i count ln M illion* o f particin pr cubic foot o f tir. U ^t *.#i f . l t i a H * ` l r 1111*4* *t i,*. t r*r *. A . V tlll*r*H itti tn W AV,f i r j . n t \ t - : & /< X mi 1 X*. -- u t : r w -- .. \ .r t . vt:it M mtira * ' r S * l r r i t 1 1 ..4 S * i > ii tr .M .i'f ftr ra.fa .tiir'." itti rar 1 .t r . S ri S i f f l i 1 I .4 1 . .' tt .'t -- * 44t*l*l * .( <,| r . -* i * .r ' . .. ' . ' t . t i .I ' J it tff a 11. i . l **f 1 4 0(7 M it U rM f i.3 J4,fl V* l*i* M l alt 1 ;4 |, i t l t u Wirft <|4P il* J .l .l! *m } H A lata alata f iJ l Ul fM li. I. i.i * 3 iv 1* CM .k t M * f l* *1 u A i / i t 1?* UM tei. sa f .) 1 M * tlt.itt 1 rtf t n .;:it l i r ta* t f . .ri .*.#'- ta * M< 1 t tr. 4. ; *ti i r t i ! '** ** * a. .,. . .t jl t ' .l ff r.% *r am J lu t * t ,* r f l r <r I t U l t . t'/ k il ' If f lia * t .ia . f ttt\r4 .. fi I. r.M ir H lllll a* .!' r 1 iM | ttl.r iti i l . * #,r I r a i I c i *i*tr< a , ; l f . U lif t tairai tw H t *ttts i.t lt , ( * 1.*, * * f h U < M M it* *J4* M l (IM H /Jlf M l *:*i M fatar |N M , kill *5f ti. .VA IV U 'W U t M i t ir <| 1 t f M l t r * * ( U % SS < }.* sm it .i * i t Jak. a l *m * a i r futa 1 ) Al 1) M l * -ifclM U tftfla j H l *1 * 7 t v v *Mm M M H i i',a j t ? c . t i u i h m i m t; ;m if* f.s S .9 It H lari r t , v r t l i * i Sai #*5 M i Jf I l r U H r i i ; *i|t u i r x i M Mt Ja|, * J , 44, 1 if I S l f * M ai*fti*rl frtatara n i a n V fl M l I JJ Staat a sc i I | m ( W i| M in I a lta i d i W *la H a ls n U atalas m H Im |*| f l V ita H i % H * ' *it*t*M Sul's; aal s * * l s t/ atta a t t i W ait t i i lw , M i l a #**t a . 4 4M ... M fU I f Al k t r it a t i |Uft tria it* O * 7 1 H f t i at ala'* ,t 1 ls M - U f <* f i S ( t ' 14 t i l * a t ri a ' ll*| W lttta M i i t a -l , J*. * * . A l t a a l 11 } f .V it i t i la * IH llla ar.4 c r ia H a t* l ai M m * *! I 14 W r it u i arata fiala** ,'t a i t s ftta*t *: m i XI4 9 *1 . *1 M tataraaf rial* ta .'lM H it S i l** i> >*. < * .! fru ta r* Mat f lt j I l M f ili* fratti aitata U t A* ) H i *.* * M tt.t * 4f*f ' j ,,Y . c * ` -t * w >i 4.4 C .N ff M 3 > ,4 ` taf - 1 , U ) r > .1 n it? y tf i J.1 ( ^ *Aeej M t t :.s * * i ?tl5 N il T 04 l.l f .. II C \V !f ! * .1 If *4.1 4.4 It 4? *4 1.4 14 04 14 K i.j *1 t .t 1.4 js ` 49.1 11.4 Iti 9 9 la f 4* it} :> *. J 1.4 / i li i.i ' ' 1 U S V.WOJt 1*1 ' < . * i | Iti , 1 ` ** a < * * .Il U } * n 4 A lA f 4 ' U*J 114 .... nr< al r a lla f. at i t a i , t H t i ( f Vat. 1 la f * f .ta t r.,*4 , f . M*a i l l * . ,tt t l* f 4* * ,tt tr. *. fi 1 . ( . f * | . . l r* tV tiaa m 1 . a t *ft :*i #** t f* . ; aa . 1 ?t*t* fta t i ia tat. / la r .* t / i r , * ir/ w-.a.:*.' .: a a * ;i l . ; r t * i. V 1 t il : i. fa l<t i i . t / 4 `. a , ; l . . 9 Ha i's r .i- a i .1 ft.tt aa * a/ II* a a ta iv ; .ff tt K H l a a tta .a t\a * . aat t t S M < r a l . . t*. t f t l ' i l * a . ( f . la * * m i . * a- l i t i . O la ; ,} M M a Ila * l* l i f f / l a ta f' . ' #.. all* f .. i .1 * * " i t i ta <1 t .#*! .l* ta #,*! * . , ai.tc |ta ,< * lait alla a u r , it H M I ( H I rat W .i. r t lf r u 4 .> ^ 4 ,: lu i ta* I* * * , | r iit k tu r* *+ .a n* f .a r t . V i ' . t . t . t t ' tal. U * r *. 4 ;* , j v t a l 1 1 , a. 1 . i ' M t a l . I 4 ' t riiltl. 4#la t it a f*M4 n ' l a l . - CtUlM a f f l l M - W * t a fflili h it*'*** 10- lo too tsbcttoo rooa th count nt ths^cnifhor is h ^ h (e<vy*W i). Apptrently the o.^rztor v-e ov*rl0'din.i th* pf-ns. Crurhed :cb.'st,0R rr.i f t U l n g upon tb'? floor, cifcco* s l a t i n g fr<Hurnt te*->lnj; *;': ht>nd ehov^Unij, It Is reeosraend-id tn*t th* ^-sonnt of metdrltl that eon fc* hanil.) without 0 *111 lnr on to*< floor wo to r u i n e d n: cvr.trolUi. r.nUflnf; t a U a m r h v r *oul< Also be of v<lU0 wince the other operations In thio roett &r now roll con- '* trolled, fct evidenced by fi*apls 47 nd 3, it le. ;ot ncocaftftry to Inf U U ft U b o r A t o system for thie one machine, The operator is suoplUd with end weord to* proper type of rsopir&tor , --. The dry old batch weighing 1* * duet diiperoinft op<v.tlon ( f t a p U &l), 1 Th operator 1* xpossd to the heevy concentrations because of tho close pro*laity of hit foe* to th* container* *hil* scooping out th inir-*dlotr- end carrying tb* lghod batch up th sthirfl to tho mixer pletfora. It 1* recosr.ended that oil btch weighing operations - dry old, wire- \ old end rubber compounding - b done et on point hero effective control by e*hut systems should bo ineUliod. Hend handling of fietorltle ehould bo elioinated os mob #.& possible, The resin (bskolito) uted la this butch ay ?ro>:luce a derastitie. Therefore, it bill be cecosxsry to provlo* cone protection for tho skin if too r e d o is to be hendted by h*nd, fe^i^hed batches should than b ktpt in closed contoinsrc *h*n , transporting to the deperttteot *hera they nr* to bo ttstd Vicuna syrte fhould be used for 11 defining purposes The mixing nd rolling op^rotionv do r.ot prerent eny iutiy conditions, alto too oxcepttoft of aiarers jF?'5 f.nd J13 (<u.ml f6) It, tk.lt- point cMi{er- > {X I- (.*' > / /' '5 -"* I1 0 ' .. . c- a - v , \'* ' \ V '' r '- . n '- .11 f *V !... /i ti''' fcble ca rd o llte duct i dioperced then dumping *.nd n lx ln ;, unt-ll ihr si? u r U l ' beco* thoroughly r o t. This le fo r hart tia * only. ?h* flo o r round U-ao s l < w le llp.-cry Je tv the Vjilll-d r^ ti-rU l t nl ,-oir f.ir '. T-r.s ti or tor- rould iit r.ci'-tVitc ly proti-al-1 i f Uv y vtr e-..;>:>Il:i vLth ' r..' *jr* ovi cu;-t reagir, toru vail.! t- o ilin g du-tping th .< esd.oU t-, ,7h 'floor ;W -ld I |\H .- \tf t i i vU*t to * I U ! 0-..U Ui* honf.rdjUK U t 1/ 0:7 r;-511 t c . t . V t r-r.. Concur*tretiona o f U to 10 parle p*r a iU lo n o f asolili* vvpors ur* iotc.cu in department Is)# H in g od a U lin roocw hi* s:occ`>v.trti:n` le fe r belo ppro*i*#t*ly l , ODO parta per i l l l o a , hlch lo the A*>imua con- ! 'y centration llo**bl for prolonged erpoeure. Tne batch weihtug oporotlons in the rubber compounding roen tro cs-^;\ . i/ d e fin ite ly herardoua andar tb prtant methodi - o f operation* aapleg 7 end 14 }y. cho* concentration o f loud fa r In excess o f the to x ic H a l t s , *hich h-v bon (Steralnod. to be 1*5 e illlg rv su i in % ten-hour ajr. The duet respirator s u p p l i e d / to tbu operator *ro n ot approved fo r lead dut. 6 th is operator h*.s not ora F ^ . the raep iretor cupelled h in and Has beon xpooed fo r period o f povpd year, ^ ff 1 on ww o f f , I t 1 rrcoaftittded that he be phyalo^-Hy Mininoti Cytnptoct o f l*'d0 J ' poisoning aro given to the rear o f the report fo r th e Infor/tlo o o f your ^\ K J ? physician Semple 15 doao-not in d ica te the noed fo r any further-protoctian fo r the operator vorking in the v ic in it y o f H boater, other then the proper ty p e, ,j .. ' -*.. -- ifrn that th* rpir*tor> be vorn should not be oorliue hardship fa r the m*n 1 apl*. A 9 ( in th* fin ish in g d*.pertm?nt b*t*?n 9lnchr.rd jjrlw*-.- J71 'no 7bl) char*- * ./finite haaevlous condition* /It.'.ou.;': t?il reru lt r.* *,*4 * >#' ' \ `"*^T~rT IT i~jg,1 "1~J-- -""v~ -ix:- obtained under c.n .onoriscl co n d itio n duo to b rp ro jv r co tt.ln.' of th >-.h u r t Sjiit i t rvrvi. t to d: .tourv.-* tc the no d fo r pv rlo .'ic eh u t o f .?. V th : In ' i t . f f . T;:<* i ' . ;! o;;.iC:. ;.* t l*a f r+ I' f r,1;. I;. Vvoc t L i ... .r.iV .r toMi th - t::< lc U.r.U. rol.- ."'l , b< t-.>' i, - I 'h t u ; /,`.V rn:; v , 1 in d ic a te s ta o :aoi*o norm*! c a n o ltio o c t Ih j BL? nch: ru grir.:'- r a . LeapLo i/,t dtp; rtT.avt bhov.o 1 I t i d co n cfn tr: ll<:n .:,uo: thing oloeoiy to tho to^lc H a l t . This condition could be o il sin*,ted by afitn.-- of or.o i cen tral bated w is h in g no mLring departs!, &o b* already be on cua.;o.*:ti.'d for other botoh ^ci^blni operations. The eeturont room did not ehov any d&nt:'roufc concontrKion*. o f io lren tu , S ixty-fou r parte per m illio n o f 5710! were found. The nnxiaua concentration fo r prolonged trposure 0/ x y lo l h te been estim ated to bo lor than 10!) p?rl? per m illion. I t io recoB-aendsd that rhea nor process r-rs to be iartr-llnd h s tu 'y ho aadc o f the various ingroilent? in tin s t e r le t , ns to th air to x ic ity , rr.6 /~s the proper protection ppllod r.t the hr ginning o f the operation nd v o ile i t i s In the experimental stage* Taking into oonsidoration thr asount o f </rir.din,f sed d r illin g one, the counts found ere Ion, iadiautin g the e ffic ie n c y o f the oxhiust nysteris. The hasardt In the plant tr* confined s o le ly to the b itch relghing toe Irina o p tv .tio n x . Proper con trol o f thcEe operctlons v i l l e lla liv ito th* health hetirde in th is pleat* The report o f th*. curvy mrde in Juno 1035 contHnc * discussion of health har.ruc. o f th to x ic r.ubstaucon need, lb fcrcnc; eh.iuid br n-cb- to th is report in conr.t ct'.an v ith the findins o f the present report 'V 'pm 'A / /ty'- -3/J c a IBS QgSERAL ASBESTOS AND RDBBER DI7ISI0W of RAIBESTOS-MAKHATTAW. IKC. . flarth.Charleston fia& **# ~ She dast surre/ laeludod la this report la suppleoantaiy to th n m r ude la Jaauaxy, 1930 ad ni coadaotod to detonadas th ztaat of dast raserai eeoapllphod bjrth Instalistlon of aow xhaust aqoipoent ad c nodosit of old oahauat qulpaaat. Sho snbor of hulldiogs, tha prooossos ad amafeoant of aachinery oro tho u os t tho.tlao of tho provieni sarto/ Sbs ahaturt aystoas of tho eards bave hooa redesigaed to cover tho aachlnaa aoro coapletely. Za a xperiaental eoso oao card aa coverei as c pi-lyas possiti Shis "'*<" vas aclosod la osila ad aa air ampie aa takaa tho adosare sad too essersi Ir sanplos ver talea la th eard rooa jroper at tha m a Mao. Sha flrst sot of saaglss vai takaahefors tho cogveyors frea tho jrapexetioa rooa befan to hriaf tha fibre to th hlas la tho cordrooa A seeoad sot of alr serpiaaaa takoa after th conreyors hsd hooa oarsyiag fibre to th Mas ter oro thsa sa hoor la sshsast aystoa sad rovolvlaf hrosh srs la ase for tha laspactioa of ovea oloth la tha avo rooa Shio ork as foraorly don* ***& hruah- c laf. Sba looso flbr la hroahod froa tho oloth la ondar that aajr flava codd he aotieod aad B t l if / / . Jkaair uqlU was takesat the table ead teo general air eaaples were takes la the weare zoos at the ea&e tlaa -- osa set was takes with both the revolving brash and exhaust fas running and one set with the revolving brush operating but without the exhaust fas* One set was taken with the worlonen brushing the doth by hand, the method need before the exhaust eystea and revolting brush were lnstePed. She inspection table was enclosed with beaver board and a aeries of saapLeg waa taken both the enclosure and outside* The following tables indloate the analysis of sir sample taken at, representative points la the different departments. Attention is called to the fast that the previous surveywas aade isJanuary and this survey la July* I Builds slae aaSsureaente were aade of the dust by a direct projeo- t4*> aathod* the results are tabulated and appear la tfaa graphs attached at the sear of the report* Zt will be noted that troa 92 to 93*5* of the particles are lose then 10 Microns in'grsatsst diameter* A detailed discussion of-the dlsw-- aabestosis end a correlation of ths X-ray are reserved for the general report* t , V * fMfUUTIOl (00 Cupi* 1*. Ctatlsa fiata Co. ft . UUlaa* af tallio af Trpa Air faaplad fartlelaa par m. Partiel* la* f V air aaaplad Uaa 10 aleras* par Dost Kaaarta 1 a 3 4 5 4 7 . 10 i t U n ir fl war apw 4m m t efcaaar #4 , * a it 4 if titea atetar ' ihhk 9 9 ^ W ln --4 if Ornai a I t O r atetar 7/lfl/H At m ttH l titea aycar flaw ib tic at tara aad aataatM At atetar aara* teadtec teta tra ta tu aataatM i At faalar aaA at aattaa a titea ayaaar At araia/or aad at fia tar f f 33.4 fii.7 41.1 Jta2 . 37.2 39.9 3W jo a 29.9 1.9 IJ 1.4 Id. U 0.17 T4 to . 14 1.9 Id Aba*tM Om caa'wrcis at ta* eternar* Africas CAO 7.9 as uaal haala ta put aataatoi tram tac lsta (basar (ad frai (basar lata truck 2.9 Saparatlac tee. fibra fr *b* fibra U , 1U OUJ * Vasta ju i pot ata anrayer br am* aaa 0 Omaaas loppor <adf oc m 7.4 AataatM aad aattaa Ta* ua iTtm au faridec alitar* lata fletar 4* 7.7 ` Aataataa Om iu | asb, ta* drop* aft rad at.(tetar sera Uta truck. C itta ' Ou* au V* Catta* tarlai drop ad Ora au tait a*ta*tM t* (mattar. U mixed U ftl (Wl|l I im p traadU ft I af tta ?**f*tlM tara U 3.9 t a lli pwtidM * tackte Idrati**! 1U tta r, 1139. m O * * Statlaa Dita rr 9 90 1 Card roe eat*r tilla tatiM * udi #2 aad 31 7A l/U Oaaaril Ir w d * NM M ttf lilla , aaat f U n 0aaaral il r w d raa, aaatar lilla , NM I f Mac Oaaaral a lr - aiek, * ropa cal tatuad u id CAM MOM c*. n . KUllaas tf m isas of ilr tapiad firtle la i par ftrtle la i lasa e u .f t .ilr tfcaa 19 aleraai par .30.7 S.S 5.2 404 19.9 19.2 na 134 12. 514 2.7 24 n Oaasral ata - sa*t af Y / V t / % JJ. Mu - aard n m | aoawyora t n m prtpara- tiaa m i aat nwnlK . 90 Xaslda aaslla aaalaaara. . na aaa aard 99 Oaaaral a lr aaat af * 924 Mal - sa ri rasa 40 Oaaaral a lr - sst af * 904 Mas. sari riaa| coa* M M tw n m w i m 41 T ..ii Maiwwa . m s> * na ri^MjtrMHpaaparatla* t i Saaaral a lr aaat af 904 Mas# aard ria s xa 1.7 # 1.9 14 2. 2.7 4.5 4.9 94 44 44 . 9.9 + a Jp . 01 Dust abastas Baitr'is la bualdlftn letva.s a tril A0 i.< "* ti9, balt u F M brabas as fas r ,vv r^>*l.,r*aataaas a tril #35 I1 tal A4| balt ' bribas as faa Isas tas as #3 aad #39. cloaadf toa ta* u #37 M-ud #39 osa iu asa tlaa m #37 * V |*JM i l u 4 4 l i tad #2 /fi'*1 asa. taaa tlaa aa A0 sad #ti Itaa tlaa aa #40 tad #41 k * n l ir r - f 1" - m r*n J.9 m taplsa 17, 30, Yt, X, ti *! ti* Tba 'm * fo# tha iuny " O i# IiM ir 11)0 w i J a lllta a partala* par **tt* fbat. 1 k. aapl Sa. 19 lu ti IU | A i csarai Ir, brattar s t i u h i 'g vzntrrdtT Sata Co. It . Militati* of Militon* of Air laaplal Partici par Pirtiel* 1 . ft . ir tfcia 10 aierasa pr amlad 7/10/31 29.1 ia ` 1 .0 , U 0nrl ir, rise A 32.3 0.99 0.91 fraaa aplaalac 15 'laiaaral a lr - talaUra 30.9 2.3 aa 16 Oaaaral a lr apaolara 27.9 0.93 009 19 (liaaral a lr - apailara 30^ . u 9.9 1> Oaaaral ir - aala a Oaaaral a lr al aplaalac 30.3 2.5 30U 1.3 u Oaaaral a lr Sldc* #5 33.5 U bratta u U IC . 15 hetaeae tee 23U sa rla cp ra a 2tt 1.3 1. s f Ouit Aabcato ad , crspU labcatM 1 II ** II ilW ltM aad fraphlta Rasarti T es a rtiaj tadc ter ria pru| crtphiu od Cit aU To aaa - 1 as Taiatlac Pra ni brtia for aMa, in o lia r para frea ria* fra Mar iadoaa oa sarti aids Ya aara, (portine para frac aula planar at parti Uaa all Sa alai* hitMM 1) od (( . A ud #10 - aal Sa alai* batmmi #9 ad 110 #15 ad' ' #16 - aula Tu voaaa - tM aa ta aaa forala* saall-lsd partine i m (i p a n i a lr n r ' r #U ta 1* ImI mIt, planiac 2.6 a illle a partici pr ahi foat a lr( kifc la --|- - t D a i anca t f Jk affila (aad U aanap af Jaaoarp 1930. S d la aaeeaaUd far bp /w t ( M t ttM f pratlaaa aarrar u n al* plaalac aal laaa Cnaa piani* aa aaa, 1.. ria (Ma* ipaalH aad M ittV ap ha grattar taat peodaam tta i sol aplaalac* Sha poaalMlitp af do*t froa t t i aallaotaca aa top f ha aaohlaa afcap ad djaamtf ta thla dapartaaat haiac *** <* l aplaalac ibia li aat ha m riiaW , I* looplc te . ss 21 SS 26 SI 32 33 31 33 ' 36 13 44 Stati 225S Otta Cu. r t. lillllO M o( IttiIleo 9t TpP i l r Saoplad Partisi par cu. P artici! ia n f ( t . alr Mipiad than 19 aleroni tant far cu. f t . alr (Uaarka Oawral ir - M t 7/10/34 32.4 od f MTt raaa tea a 122 7/11/34 35.7 U lupastlaa U lta - 27.3 ovm latta tenore! Ir - aat ad *t m i n t*aa Xkipoatlaa total a- * a lm i la tea*r kaard tea Mapla tekm lo#Ida oalaaiir takw Juat tolda * aaloaaro Ikaa'loalda aa'taaura tea aaUtda * oaloaura Tata laild a ' aaliawa Tata --f i* * 27.7 20.2 17.0 a* id .i SteS 4 ternral ir . aat ad V U /34 Ite Quaral Ir aai ad * Ite 6 .3 6 .1 0 . 0.5 2 .6 2 .5 S.S 5.3 3J 3 .0 W 7 .1 2sa su o 1.S 1 .5 US U4 sa 2 .0 7 .3 oa 6 .0 5 .7 la te * tea II ** Savairlac brusii - . hauat bote tao aaa * Takaa alto rrrolrtte bruata aai aahauat raanlae. Snohattea latta dlS al UO Som U m a i #31 teoltas taruah - o *hut tea aaa Sa tle m #33 land bruahln4 " - ttara h i, la te tino a i #35 Satani aorta itarted In aoraiate tant dotata froa oldaUtat 1 1 t e M M W l f a a a p la i | ( ) t e U w * U k i i t t f o aorta i l w M l a I t e t r i t a i , tea mbU n aaildintaljh ljte r It e a ita i lit e ta rili jm tta i parlala* Itala ay > duo ta alaalte a i lodate, htetlac af taaaldlfUra al fioar noaplac* . ; ,*i *' 1 i*r 9 ft i* '* i * ' .1 * J # , . * * * *. al 21S>tSSM (CoaUaaad) (M fli h . AS 4 AT it a % 91 52 S3 Otatlaa Sata e.' n . Air laaylad Ommral a ir m TA3/31 27.0 M l *f MM IMS Itim i t ir - n it 27.9 ad af MMt (Ma At laapaeUaa t ikl 30.3 ftr MtM alatfa, irr m aU tt UK29 mm bNUM M MS 27.0 Omm iM ttlM a M i 27.9 Xaaptttta* tabla 30.3 haad brulla Saaa lacaUoa aa MS 10.9 U m lacaUea aa M i 00.5 tbbU iM O M tlM * 2U m m a l a t k , im it ili bmah, aa a*aat Oliilana a# h rtle ln pr u. ti. H r aaaplad Million of Partiel*! Itti thin 10 tetar. par u. f l. t ir ... . Ilftu ltd ....... M . 2.1 2.7 2.7 0.0 0.0 S.0 0.9 sa 5.0 oa M 1.9 A.0 0.9 0.9 u X.7 IJorpf* (Ult Abeat* 1 h au ti Ses, Um / il ni 17} i*vf roca l u m i at 7 a'eoek Sasa Um aa #15 and 17 Oavalvlac bnufc ad xhau*t| tu M t, um tia i aa MS aad 11 OtM Um aa M9 aad 90 U m Um aa #10 and 90 Ihr a*a - at ata um aa /10 aad 19 A t u m t i M aa #92 aad 53 U m tiM u #51 aad $3 Saaa Um aa #51 aad 52t M Ml a .tarai t ir aaaylaa, #22 21 aad a i, AS A i, 1t. 49 SI 52, iw rte il 3s -fitta partici* yar abbia fair ir, aa aaaparad tifa 4 ( a l la im i ( Aaauat7 1930. * ; 1 a# # *0 a % la * * * 1. 43L 1 1 1 1 1 1 | fcifU so . .S 3 ' r'b ' G i. <o % fiCAIHg PtfiUMEMT B u tto n & ta Cn. I t . Air Sampled' MUUom of Pairtleloa por on. f t . 1r aaapled lUioao of Partielao loos than 10 aierona por on. f t . ofr topiad O m n i ib r - aolOid '7/10/34 2.3 0.45 0.43 pactlot O opvU nl O m n i 1r mMwr 20.2 14 1.3 . oo>pomi1tei m m . . IIP of b lit Aobooton Clay load talo aulphur : : * J- 4 Rm ika a - * Baaplo S. 21 - 3 Button Onto Cn.x7 t. Air flw U d . Batman too rtiblor 7/10/34 eoapoandlaff ntllo 33.0 Central oir - rubbor ** *20.2 oapomding raoa iniT.TflM l l l l l g r u i of load per on. f t. flp o .o f AltlM alwl______________ --__ duat locative for load 0 Sofotlvo for load Clay 'load tala aulphur Beatrice Srhauat hood 1th cloth cnrtalw r^ Itcnii part alr M m n M d v t a i l*it etoth laqMttn tabla - iihnrt u d tmlflti QUtt laapaatiao tabla aa aahaoat but alth rarolarlac brtub dath iupaetloa tabla - bao! b ru ah io f, do wusmtamw Sabia ahowlnc tha multa of apalil taita naittbi eloth laapaotlea tabla a m uioni of Ouit Partlolaa par f1. alr aaaplad toalla aooloaura (doora oloaad) ----- "3.3 Boreal oonditlena anolorara raooTad 3 . 3 .a o ,* 23*2 ' * l* * l.S *2 ; -1 0 - Zt n i sotad thaf oaly llght changos had beca r<fo la tba prepeia- o tlo a roo inca tba n r n j la 1930. Cxe aothod o o ilin g a si conveyis* tha fib ra xaaalaa tha saaa. Xa notad, tha oversge dast eount ranoinad eonatant. Xztaaalaa chongas aad laeraaaad aathoda o dast cntropplng a si ranonal la tha card roen wara notad. Iba aathod o eonreylng tha fibra trom tha praperation to tha card roo la tha aaaa aad tha fib ra la cortad Ton tha a ataraza bina to tha faad hoppers es tha carda la tha aaaa anacr* S o ta n vastU otion la capplied..by opan Windows whlch occopy apprCx- otaly tao thlrda of tha to ta l wall apoca* o Saaplas So. 37 aad 39 ara talan bafora tba fib ra cenregrora froa tha psaporatloa roo ara rsaaiag, ahilo sawplea So* 40 .oad 2 ora tafean a fta r tba oounyoro wwra pot la to opero tlon* .Sha laeraaaad cooat la arldantly doa to d w t fanaratad tj tha fib ra oomwyors aad laakoca fro* tha atoroce bina la tha oard roo Za tha ta a t ontha endosad card, aoaplaa 37, 38, aad 39 tafean c baforw tha fib ra eoBrapers wwra eparatlac *ad em plea So* 10, 41 od 42 ware 0 f*w* a fta r tha ooangrora wara roanlac* O calla aclocare la aot sffe c tita la b n r<"t oot tba fino d o rt, aa eridanoed bgr tba ooaparlaoa of coaita en aa^iLoa t*1" aindltamaoaaJy *** aad ootalda tha nclosare* fita laeraaacd opqpta fta r tba aouwyor waa eparatlac ohocld ha aotad* 9ha mtwil wentllatioa la thacreareroo la ancoaatad hjr* foreod Ir onpplythroachtba fu cal diatrlbotiac docto oaad for beatiac la tha lista MStbi. a. r-- t 4-- t joU-- l tro. il. onUl. ir mppr i. rwt., ,, t dort flj-ter. r. loU4 t dlrt-- -rt cf t-- roo. i. to . c m - - t W B t o - t o t * * * * * ir Attention is called to the tests run on the doth inspection table, with the -- chSTticsny operated brushy which show that the exhaust ojetea is effective in keeping the dust concentration down to the u u const se nadar the systea of hand brushingwithout haust. She lead pollution at the rubber eoapounding operations of the fwMwg departsaat ha been corrected* as shewn by the absence of lead in the e air soplas taken* COHCLSIOHS Jjm REOOMMEKD1TIONS in banst system is nadar construction in the esrd roen and experinental work is in progress for entrapping sod exhausting duet generated by the looas in the weave room* end until this work is eoapleted and checks run on the efficiency of the exhaust system, no ether reccaaendatlne can be aide. Teste endnetod in the card rece show that thoro is an increase . 2 the gsmral air dot contentwhen the fibre m ayors are in operation* This is d to 1t*Vr of dust frostthe fibre storage bins in the card roon and efforts should be aade to seal this leakage. L V Dost partial-als -**.% * M % 4 % lllllIllIllll!llllllUllllllllillllll!I!IIIllIlllllllIIIIKIIfIiIIIIIIIIllI!I!Itlliiilir?iIIn T uiiiiiiiiiiiim iiiiiiiiiiiiiinm iiiiiiiBM iBiBiuiiiiiiiiuiiiiiiiiiiiiuiiiiiiaii-'.ii m i M > a i t i * > l l l i " lll* a a a a a H a B M a a a * "B M a B I H M a a " B B B a 1 1 1 1 ! * X I I 111 M I M r j l B a K ^ * tt ^ mllllllll I ImlllHIIHIllll 111Hla fc 4. a ' * ^ . ' \t .^ Dust particle sizes in microns -- ------------ - ---- -- . . *. . ---- .......... . D . V ' ------- * - " vS*v i? * X. ------ K I 'it a S . O W B A IW T K M ie M O M M U T T . D IS I O H IO D T M A X IM . W M IPPLC * o rU IX C R . r " i COOCX 0OIC COMPANY. IN C . N 9H W O Q D , M AACHU SCTT f* * V* 9 6 7 9 9 4 J 2 / 9 9 7 6 n inan n lo ' Dust particle sises in nierons a <* -- *#,, v t * * - f * .* * m * + m i* i mt r - ^-in i-- -- M O . S I M . 106A M TM M IC r a o M I I U n . 0K i N K B I f H A IC N . N N I P f U * r u u t w . O Q aMli COOtl soon eOkMNV. toe. O ftw ro e o . M AtM eM U tCTTO 1 w v w fc *. . i * w r ^ ; 'T c r " ,,> M k 'r t i o J r ,B A > k '- < ' C T i t c l f Cost- partide.- sixes in nierons <*<&' D ut partiels aises la sierosa' t s N s s ______ s 1 s a V*T % IlllllllllllllllllllilllllllllllllllillllllllllllllllllllllllllllllllllllllllllllllllilillllllS iiiiiiiiiimiiiiiiiiiiiiiiiiimisiiiiiaaBMaiiiiiiiiiiimiiiiiiiiiiiiimimsaiiii M m iiiiia iiim iiM iiiiiiiiiH iiiiiia iia iii m i m u n i l i m i m i u u u M a s H s a s u a iim a a B s a s is iiiS H iiia iiiH B H S S i e a s s a s is iiiB S B o ia s a a iiiiiiit iiiB a i s a jv vfUW44Qtf9ii lauwiwM^ **!'*Ha*vu iSiiiiHiiiiaHaaiiiiHni'jSiSSSS lIIIlBUIIllllIIIIIlIlllilllllllllllHimlilllll a .......................... . . . . -- n:ii;iiii!iiiiiiiiiimiiiiiiil n a a Dust partida- aises lu alorona PrcnUg* froquonojr of occurrnc of doit ptrU oloa Duat partiel* aiaaa lu a&eroos O F <i 5 1 I i;rw *"<*-" a c t 005 OJ ox /, s to^ 20 JO *o so 00 m ao OQ 95 90 99 fareantaga frequency of occurrence of dust particle* rpHovd ^flnp jo onvjjnaao jo iouwibojj Sv)uo?40j. eu 09 oe or ^ ce o* ot r at ** n sm> tou Dost partial*, lisos !*.*! utd rse o fl I !** ! 3 O iO 3 -^iltiiimiiiimrT1 M O . 1 1 1 1 , bOOAMTMtf IC F ftM A S IU T ir. M l M AHN. N i m t * rU IX U i Dust partila alaos In.lcrono, Dact partid sisas in nierons * * b J It i iT t f * i n I ir i'i nina i J w iM m K n i - n . ^ l? M '* " , u1tl m K m '>'r t lX k l> rW i*iV r V t ' f u u .in l* * O r O o C O O K S SO ON CO M PA N Y. IN C . - * MOAWOOD. M A # A C N V tm O '- v _y Dust p artiel sisee la. a l Percentage frequency ht occurrence of duet paritele* \ i / i Qm a d laiid r a l l a noloMp f i n i r l i lite ito i A Sabber DIt iI oq Bsybertoe-sahattaa, Xas* .Charleston, S6* a-C *