Document QgY4qwRBnB1GGJ2V60rMR2v6v

SENT BYiXerox lencopier ju<v , i- ,rmu< . cc eDfrfijfyL'ni 9 4|te V W W 7>.. Y* ji6 AMCRICAN SMfLTlNO AND RCfININO COMPANY R ^ E l V D CINTtAL aCStAKCH LAIORATOK1C! SOUTH SLAINUtlft, N.J. 070S0 C t 53 AL CUOIYC MtiAi(,iiiua HHUM October 10, 1968 Ref. 609 TO rtill AMO ... now ... - ..tAT __ un............. > . ... KT_ .. .... . .....nu Mr. R. P. Oagnon BLACK LAKE i Asbestos Textile Inetitute Meeting, Hershey, Pi. Oeteber 2-4, 1958 An interesting and tinely four-hour seminar on "Asbestos and Health" was included in the General Meeting. Thia was sponsored by Johns-Manville Kith C. L. Sheckler, Manager of Occupational Environmental Control, J-M Corp., as the Chairr.an. The seminar agenda, notes, and cor-oents are as followg: 1 (A) News Headlines and Public Relations. W. P. Raines, Director of Public Relations, Johns-Manville Corporation - Presentations of "scare" newspaper and periodical headlines were cade, including a recording of the audio portion of the CBS TV news presentation of June 7, 1963, in which asbestos in spray-up insulation on new building construction in New York City was being accused of being . a potential health hazard to Billions of people in the netropolitan New York area. Johns-Manvilie Corporation has issued a aet of three "Position Papers" on the subject, under the following titles: 1) "Asbestos - A Family of Minerale" ) "Asbestos and The General Public* 3) "Asbestos and Hunan Health" JAN 7-31 7.-BS j 0001001 20 1 S38400S PAGE. 02<s SENT BYiXerox Telecopier 7020 ! 1- 1-81 ;i0:02AS IPORZIO BRuiioERG i NE*60i 631 3100 I ** / '.25 * Mr. R. ?. Oagnon -2- October 10, 1958 (S) Biological Effects of Asbestos Dr. George V. Wright, St. Luke's Hospital, Cleveland, Ohio., Chairman, Institute or Environmental and Occupational Health. The first cases reported in which asbestos was suspected of affecting the human lung were in 1900. In 1930 textile plants became concerned although the pathology was poorly described. t The first hard look at the problem concerned asbestosis and the second, the cancsr producing proclivity resulting in bronchogenic cancer. Asbestosis is associated with long-time exposure in which the lung shows scarring and inflammation. Biological effects show interference of movement of oxygen from gas phase of the lung to liquid phase in the blood. Measurement of this 02 movement is indicative of progress of scarring -of the lung. Asbestosis results in lessening of elasticity of the lung and destroys the blood vessels of the lung. T The threshold limit value or maximum allowable concen tration of dust particles has been 5 million partieles per cubic foot of air, of particles less than 10 microns in diameter. This provisional limit is now inadequate and is being changed. In Great Britain in 1950 it was found that th* incidence of lung cancer was higher in asbestos workers suffering from asbestosis than in the non-asbestos workers. The asbestos producers in Canada had organised a study at the same time involving the mill workers of the Thetford area.. This originalstudy failed to show any undue frequency of lung oancer. However, it was shown that the only study data available were from relatively incomplete and sketchy death certiflcatee. This resulted in mandatory death certificate data showing detailed contrasting causes. Textile and friction material workers deaths were isolated,* with both types showing earlier deaths than ths rest of the population. Textile workers, because of high dustiness in textile plants, C JON 7 '91 7:0E EF& f 0C J 002 2015384005 PfiGE.025 SENT BYtXerox Telecopier 7020 ; i iv onwftocKu * rtc^ou* oj i *iuu <o Mr. R, P. Gagnon October 10, 196B showed higher unci ..-'as uf earlier death*. Clean!nc up of textile mi'\ " .-cy atmosphere* in Great Britain resulted in a'sharp de .ir.e in lung cancer. A thin membrane covering the lung ii the neiothelia. Abnormal calcification of the cell* of the lining surface retults in cmothaliona, classified a* a rare tunor under ordinary eir-.vucatunce t. Aa f *w as two or three are teen in a lifetlrs V/ nr.a physician and only 1 in every 1000 lung tu: -a is ft :;.a loihelicna. But, In South African crocidolite t a-; .5.." : -ork-i?*, dosam of mesotheliomas have been foi .vicr.-. a of the area, such as women not working with ^ v*-:.-.va been found to be victims. Roads, in th itraas, contain fibers which filter through car ,,,,.,dovii ura among the ceusativo agents suspect. Mesotheliomas &?j v*ry rarely associated with chryaotile asbestos fibers for .uaaunj not yet known. It has beer, dcro.f.trat^d that bronchogenic cancar is ten-times as hijh ..:. -r.vui.itcon workers as for equal age group* not employes; in this type of work. Workers in th* insulation trad a.i an* os so uvranty or more years and who are cigarette smoker i, ura uo times more susceptible than those not employed in the -insulation industry and are non-snoker6. Fibers which stay in the lung and become tissue-coated are called "asbostoj bodies1'. These are found in th# lungs of the bulk of the copulation to a greater or lesser degree. The term nay be misleading, however, in that the core of the asbestos body say ba from a source other than asbestos, such as a manmade fibar, talc, or the like. Research is in progrets to identify the origin of the "bodies" and to correlate this with disease and causes of death. (C) Organizing and Engineering for Dust Control X. M. Fenner, Director of Environmental Control, Johns-Kar.viil* Corporation - Mr. Fenner discussed a typical method of improving dust--- control by illustration, ahowing the organizational make-up' for improving the working conditions of textile worker* at Manville, New Jersey. JAN 7 '91 7:07 EFM 0001003 2015304005 PAGE.026 SENT BY'.Xerex Telicopier 7020 : 1- 7-81 ;10:D3AM JPORZIO BROMSERG & NE-6IU 631 3100 '*21 Mr. R. P. Oignon -4- October 10, 1966 a) Determine Composition of Task Unit 1. Development Managor 2. Production Manager 3. General Plant Engineer 4. K&nvlllt Plant Engineer J. Environmental Control Director b) Task Tata Goale 1. Correction of all operator etatione where dust content la above Threshold Limit Value. 2. Correction of operations which create visible duet. 3. Improvement* in methods for handling fiber. c) Action - Master List 1. Process revision 2. Paw material change 3. Equipment codification 4. Improved duet collection J. Improved houseKeeping (D) Asbestos Research Pro great Dr. L. J. Crelley, Director of Epidemiological and Field Studies, U.S. Public Health Service Portable X-ray units are being used in contacting all textile mills. Data is being collected for study. Laboratory studies are in progress on fibers of both synthetic and natural origins. An enzyme of benzopyrene is a harmful product found in the lungs. Magnesium is thought to activate this ion, while niekel, hexagonal chromium, manganese, cobalt and ferric iron tand to inhibit it. Talcum powder eosnetica are frequently high in quarts, nickel and cobalt. (E) legislation, Litigation and Action Program C. L. Sheckler, Manager of Occupational Environmental Control, Johna-Manville Corporation f^iF*MX oocico4 JAN ? -9i 7;0Q 2015384005 PAGE.027 SEN! BYiXerex Teltcopitr 1020 ; 1- 7-81 110:03AM IPORZIO BROHSERG & NE-BOA 631 3100 Mr. R. ? Gagnon -5 October 10, 1958 Several piece* of legislation are currently being debated. These are: 1) The Occupational and Safety Health Act of 1955 2; The.Threshold Licit Value of Asbestos Bust. The Occupational and Safety Health Act would grant special powers to the Secretary of Labor, establishing mandatory safety and health standards. The Secretary would not have to consult with enployers, rather with other government committees only. Three hours of teal* nony have already been heard dealing only with asbestos, which has been damaging to the Industry and has been slanted In the direction of labor. Ho attempt has been nsde to differentiate between types of asbestos, hinds of application, etc. It is essential that the American Textile Institute keep informed of this legislation. The Threshold Limit Value of Asbestos Dust legislation is a forerunner to statutory changes in the present laws. It will reduce the current maximum value in industrial air from less than 5 million particles per cubic foot of air to lets than 2 million particles per cubic foot of air. Lmpingenent dust particle count methods have been found to be less efficient than membrane filters and new methods of establishing particle counts are to be used which are entirely different than those used before. Great Srltaln has introduced new threshold limits which ars fa; mora stringent than those used in the .United States. The Unites States has proposed 12 fibers per cc over 5 microns, maximum. Tier ehrysotile and amosite. Great Britain has proposed for air, 2 fibers per ee and not more than 10 fibers per cc Where 4 fibers per ee, inspectors will insist standards be improved. Where 10 cc or more, atmosphere will be con sidered dangerous and the conditions will be held unvorkatl Tor. crocidollte, Great Britain has proposed limits of O.l of those for ehrysotile and aaosite. In the Unitee States, four potentially damaging law suits are in litigation at present, which could seriously effect the ssbeatos industry. An example of one is the case of a former Johns-Kanville employee who worked at 0 0 C10 0 5 JfiN 7 '9; 7:08 2015384006 PAGE.02B SENT er:x*rox Telecopier 7020 I 1- 7-97 MO'.OSAK 5PORZ10 SR0M8ERG I NE-*60i 831 3100 r ;>29 Mr. R. P. Oagnon -6- October 10, 1953 Manville for 18 months In 19^1 *hd 19^2 as * Clark. Ha then quit to go into the armed aervicea and when finished with his service, entered other employment. In 1966 he died of bronchogenic cancer and his estate sued, deicing hie condition was incurred during Mi J-M employment. Defense lawyers dale they have a backlog of similar eases awaiting the outcome. It was recommended that The American Textile Institute: 1}_ Initiate an environmental control committee of four people including top level production, marketing, a physician and an engineer wMch would keep abreast of health problecs and coordinate inforaation with industry. 2) Syontor programs with other outside groups relating to health, such as Insulation Manu facturing, ACPA, Peerllte Institute, etc. 3) Assist member conpanies when requested. ii) Report in detail to the ATI general neabarahip at each ceetlng or whenever required. Technical Committee Meetings: A ccabined ceeting was held by the Fiber Testing Committee with the Technical Committee to discuss results of the Mapsi and TJcN Magnetic Rating round-robin tests run on asbestos textile product!. It was concluded froc the tests that: 1) There was no discernable difference in results between the two methods. 2) On either test, some companies got odd results on some samples. 3) Test variation between companies may be due to differences in the products or to diffartness in teat procedures used or to a variation In packing in the test call. JAN 7 *91 7:09 rocico6 2015384005 PAGE.029 SENT BYiXtrox Telieopitp 1020 ; 1- 7-91 ; 10:D5AH IPORZIO BROMBERG b NE-60i 631 3100 Hr. R. P. Oagnon 7 - -October 11, 1958 It vas decided to repeat the round-robin test program but to elininate the test operator as a major variable. One can, familiar with both testa, will tour the aenber laboratories with test standards and teat aaaples and instruct and observe the test procedures at each test location. A representative of Bell Mines will be used for this work. Magnetite standards of the eld 29A, Bureau of Standards caterlal, haa been used up. Nev standards are being checked against 29A and will be issued when tested. The problen of determining objectionable grit in spinning fibers is being investigated by using wet cyclone separation aethods. Results show good separation of the rejects froa tha long fiber, but it has not been determined that the long fiber la an acceptable spinning fiber by tha trade. The textile companies will supply the ecmaittee with samples of objectionable portions of spinning fiber so that the test nay be aore closely .controlled. There is a need for acre attention to the dust problem in fiber packaging such as bagging for oversaai and domestic handling. A aub-eonaittee for color testing is required to aore fully qualify terns, check nev equipaent, aid in vestigate calibrating standards. CES/lk cc: M.J. Me*sal L.C. Piute s Z.A. Farrell./ E.V. Faison S.D. Weaver -------------------------------y C. . Stiafkan. JftN 7 *91 7:09 m 0 0 C10 0 7 201538*005 PAGE . 030