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FILE NAME Manville JMA DATE 1968 - 1972 DOC JMA037 DOCUMENT DESCRIPTION Asbestos - Health Information to Customers - Letters Memos Product Lit Sales 1969 1969 1970 1970 1971 1972 Asbestos Information to Customers Hooker Chemical General Motors Harbison General Motors Division US Steel Rogers Corp. Bendix 15/1/69 15/1/69 15/1/69 15/1/69 . AB RECEIVED 1918 6 18 19969 DONOVAN ASR FIBRE DIVN Albany New York April 15 1969 E. M. Fenner ^ Research ee ao CC / N. W. Hendry - Asbestos G. Donovan Research |, Chrono M BUFFALO VISITS TO DISCUSS HEALTH HAZARDS OF ASBESTOS Let me thank you for your time Chemical and Harrison Radiator of asbestos fiber and effort with me to in calling on Hooker discuss health aspects Attached is the list of personnel attending the two meetings I neglected to ask you for a copy of the paper Asbestos and the General Public and would appreciate it if you send me a copy J. F. Rais JFR Pm PRODUCED JM - 83 HARRISON RADIATOR DIVISION OF GENERAL MOTORS CORPORATION Dr. John Stuns - Medical Director Bob Slate - Group Process Leader Gary Berntsen - Process Engineer Jim Harrer - Chief of Plant Protection Joe Malakowski - Safety Engineer Jerry Lindsay - Chief Chemist Jin Mulvey - Chamist Carl Hays - Buyer . HOOKER CHEMICAL N. Kirchgessner - Manager of Production - Durez C. Mayers - Plant Manager - Durez Plastics L. Rohrdans C. Scionolfi H. Bryzinsky John Curry ICD Cell Development C. Wolosin - Mgr of Purchasing Raw Materials George Breirly - Niagara Plant Safety Engineer Plastics Div PRODUCED JM- 83 June 17 1970 MEMO TO FILE , CC N. W. Hendry - Asbestos 1500 J. F. Reis - Boston Harrison Radiator Environmental Control June 5 1970 Meeting ap te? On the called above date the following at the subject company people representing Manville Dr. George Wright St. Luke's Hospital Cleveland E. M. Fenner Manager Environmental Control Research N. W. Hendry General Sales Manager Asbestos 1500 D. Smyth Technical Consultant to General Sales Manager 11. G. Donovan Product Marketing Manager Research J. F. Reis Special Representative Boston Asbestos The following people from the Harrison Radiator Division of General Motors at Lockport New York were also at this meeting Gilbert D. Hoch Master Mechanic Robert Slate Superintendent Production Engineering Tom O'Donnell Safety Director Albert N. Benoit Manager Plant Engineering John Potrubacz Production Engineering Dr. John Stunz Medical Director Howard Bolton Manufacturing Manager B. I. Raysor Works Manager Carl J. Hays Buyer Edward A. Gailor General Purchasing Agent- The meeting was opened by N. W. Hendry with general remarks and then turned over to Dr. Wright Following are my notes on Dr. Wright's presentation 1. Bound locked resin bound latex bonded etc. insulation textiles micron 2 Size 10 microns do not reach breathing area drop out To reach breathing zone must have low settling velocity 1 size behave like a gas and follow the air mass Most dust does not enter breathing zone out in the tubes and fow get to the end those that do drop PRJOM D-UC8E3D Notes on Dr. Wright's Presentation Continued 3 Mucus membrane in breathing apparatus phillia projections on surface These pick up dust and carry blanket mucus blanket -particles deposited on blanket gradually work out the particles from the surface cleaning mechanism Second cleaning mechanism macrophase Doesn't handle all dust some does remain In 1900 men who worked in textile mills in England had short life and died from heart failure By 1930 in was known that the physical problems were much higher here than in other trades In 1940 the Threshold Limit was established This is about the same as for chrystalline silica all items dose related Below 5 million particles no problem with chrystalline silica proven However this is not true of asbestos When asbestos was originally tested on this basis it was mixed dust hense must have much less in asbestos particles . At first fiber counts were not made just a count of particles In 1960-61 fiber counts were made and fiber diameter 1/3 to be classed as such in counting to collect the Fiber for counting Membrane filters were usedlevels Hence there are safe levels of inhalation in the working life on an individual - British set the Threshold Limit at 2 fibers have chance of developing fibrosis Between Between 4-6 fibers is considered acceptable 6-10 fibers is considered unacceptable 10 fibers man should not work U. S. industrial hygienist TLV's abandoned 5 million particles and went to fiber counts direct Set limit of cc peak level Time weighted average is 5. There are levels which are safe but the levels were set to protect the most vunerable as some people . are more susceptible to fibrosis In about 1948 investigations of death asbestosis showed that such people had from lung cancer causes of people a higher rate of having death Mining & Milling Exposure There is no evidence that the people in this industry have a greate incidence of lung cancer however data on exposure is not too good Inspection Workers Inspection workers showed a higher frequency of lung cancer especially some working with anthophyllite in Finland PRODUCED JM - 83 Notes on Dr. Wright's Presentation Continued Bronchial cancer Anthrophyllite workers Textile workers ratio ratio ratio 1 1 1 ) ) is variable ) Mining and milling workers were again looked at by McGill Dr. MacDonald No excess of lung cancer was found over the average population however when comparing with other workers the heaviest concentration of cancer is among this group Least exposed workers showed less incidence to lung cancer Study showed that present disease is a result of what happened 20-30 years ago takes disease a long time to develop There is very little evidence of disease in people during last 10-15 years In 1959 cases of Mesothelioma disease affecting the plural lining of the chest covering the lung were discovered in South Africa where crocidolite is mined Usually a very rare disease 50 or so cases were discovered The strange thing was that most of the mining was done 400 miles away in the Transvaal area where no cases were reported Few cases of the disease have been discovered in amosite mining Upon investigations in other areas some cases of Mesothelioma were found in London where Blue Asbestos has been used There has been no definite evidence that asbestos was truly the cause however Bronchial cancer related to anthrophyllite showed no Mesothelioma In Canada a relation was discovered with men working in insulation industry to the disease but none at mill or mining arca In Italy Mosothelioma was discovered in shipyard workers but not at mines All these are dose related and must be related to something else Dr. Newhouse investigated all records of workers at Cape He discovered that the highest exposure gave greatest chance of cancer bronchial or Mesothelioma Light exposure showed little evidence of cancer Cigarette smokers are more prone to develop disease Cumulative aspects ~- hard to resuspend bound fiber fiber bound does not subdivide higher density Talc does more talc fiber everything is used in that asbestos the U.S. than does and asbestos The meeting was then turned over to E. M. Fenner Following are my notes on Mr. Fenner's presentation with a question from Dr. Stunz 1. In our environmental health control efforts good equipment is necessary but more important is monitoring the system PRODUCED JM - 83 ' Notes on E. M. Fenner's Presentation Continued 2 Dust can be controlled a Change process to one that does not produced dust or one that will have adequate dust control b Monitor the system 3 Dr. Stunz of Harrison questioned What is count on deflashing Our answer would be a Take membrane sample for fiber b Take station sample for particulate C. Calculate T.L.V. Following Mr. Fenner's presentation Des Smyth presented our story on bulk handling This could be done in either of two approaches 1 basic bulk handling or 2 the possibility of producing and shipping in a bag that could be used right in their mix so that no free fiber would be available to contaminate the air A visit station to their plant where asbestos was was then scheduled and we observed the loading loaded The suggestion was made that since there is a positive pressure on the amount of asbestos blow which sieves there would be a certain there was It was suggested that possibly which Ed they could use a Fenner discussed combination vacuum and positive pressure system with John Potrubacz Also during this visit we observed the deflashing station where the excess flash from the molding on it was removed by men using a hand It was indicated to me that one grinder with an air blower of the biggest objections of the men working on this job was that the glass fiber irritated their eyes They would like to do this deflashing automatically and are considering it since they could save a considerable amount of expense and manpower if this could be effected The conclusions from the meeting as indicated to us by Harrison personnel were that 1 They would reconsider their proposal to eliminate asbestos fiber 2 They would call on us for engineering help and we would be very happy to give it in the event they wanted to make any further ' revisions in their process ' Jim Reis will keep close to this customer and report periodically on the outcomoef their investigation H. G. Donovan Research & Engineering PRODUCED JM - 83 er reece ene Memo to file PLANT VISIT HARRISON RADIATOR - June 5/70 Personnel HARRISON Gilbert D. Hoch - Master Hechanic Robert Slate - Sup't Prod Engineering Tom O'Donnell - Safety Director Albert N. Benoit - Man Plant Eng John Protrubacz - Prod Fugineering Dr. John Stunz - Medical Director Howard Bolton - Manufacturing Manager B.I. Raynor - Works Manager Carl J. Hays - Buyer Edward A. Gailor - Gen. Purchasing Agent A.F.D. ASBESTOS June 19 1970 MANVILI N.W. H.G. Hendry Donovan Dr. Wright E. Fenner D.P.R. Smyth J.F. Reis Dr. Wright talked extensively and interestingly about research work concerned with lung diseases caused by dust He pointed out that 1 Asbestos dust can cause asbestosis which in turn may cause cancer 2 If dust control is sufficiently well meeting the revised standards set in man could work with asbestos all his effects from the asbestos applied to result in an atmosphere both Britain and the U.S. then a working life and suffer no ill 3 All forms of dust constitute a threat like silica or talc are as harmful or to human health more harmful than Some substances asbestos Ed Fenner then spoke Harrison either with briefly about dust contral and offered offered to assist advice on redesigning present dust control installations or with help in determining dust counts PRODUCED JM - 83 Page 2 D. Smyth covered bulk hpdling in a short silo and the pump were shown in brief de to Ford were completely trouble over th with slides The ail the and the point made past six months car that the 7T15 shipment A cost estimate was given for the leasing of June and 12 rental 1970 rates were installation of silos and pump Alternative offered as per my letter to Carl J. Harp After some discussion of the alternatives the new facts presented by J.M. compelled handling and that they would study the Mr. Raysor summed up by saying Harrison to take a new look at whole project that bulk- After lunch J.M. personnel to observe dust conditions station were taken on a short tour of the Harrison plant at the feeding station and the grinding Bagged fibre is fed through a rotary lock into a blower system which blows the fibre through a " pipe to a receiving silo Fibre is blown from this silo through a metering arrangement to the mixer The lock at the feeding station was leaking back was causing excessive dust If a properly designed lock were used the dust control provided should be adequate Dust control at the grinding looked reasonably adequate Dr. Stunz accompanied us on the tour As a result of discussion between Dr. Wright and Dr. Stunz a request was made that J.M. give specific help in determining dust counts at Harrison and Ed Fenner agreed to set this up DPRS D.P.R. SMYTH PRODUCED JM - 83 , *. , " OC} . ame cow te FOR Uy i Pay : 4 \ ated, ASBESTOS FIBRE DIVISION 1.O. BOX 1500 - ASCESTOS QUEBEC - TELEPHONE 379-5431 . . . October 1st 1968 % > - , % o Gentlemen . we You will notice that beginning shortly each bag of chrysolile asbestos fibre shipped by this Company will carry a label reading as follows - os > CAUTION ee ; 2 , wee. This bag contains chrysotilo asbestos fibre - Persons exposed to this material should use adequate protective devices as inhalation of this material over long periods may be harmful . sao . . . 4 rm RR Se '. t | a as 3 TER woe e 7 . ey Pd . all >) The label is intended to remind Le industrial users of asbestos that proper handling contribute to improved conditions in work areas will , . i Physical protection for employees is provided through the use of safety hats shoes glasses and other devices when circumstances warrant Health protection is just as and important should include appropriate practices and equipment such as masks etc collectors ventilators . inhalation and particulate to provent of lumes matter i ald wee particulate tg matter = RSS gra ) As you know in the past several years there has been increasing publicity and medical attention given to health effects of inhaling industrial dust and fumes of all kinds Some studies inhaling have raised the question whether adequate control measures are being taken in certain inhalation industrial operations to prevent the of asbestos particles Other studies have shown that where proper protective measures are taken health health risks are minimized occupational , PRODUCED se ; gs ne [ continued ry . e te eee fee pos ar . , . a . . ear . ae ry ao s. ~ * . " i " Aart Tt : wes ye we ame deal we aes rns we ee 7 | Medicalresearch on health questions relating to asbestosis being sponsored by JohnsManville The Quebec Asbestos Mining Association and several other organizations Such research will VY lead to a better understanding and control of health hazards associated with inhalation of asbestos particles ~ . Until more concrate information is available from the abovementioned research we have A~ . uf concluded that it is in the best interest of all concerned that we place the bags containing asbestos to encourage careful handling of the fibra above label on A . pleased If you have any questions wo would be pleased to hear from you . _ . %; : ad a . . . al +. . e man ey _ , 2 Yours very truly . ~ 4. NWH . , Th ye . ; co : . : * oes . N. W. HENDRY HENDRY 7. 7 WG . Le General Sales , +. .e oa Managor ._ # ** . _s , ay Yan : 7 . . i ' Ar 3 . an a. *. . &:? te, an ' be bl . , t oe . 3! J . ~w : Ss fea | . " 8 . . nn . a . a . . : . . . yee ^'- a , , a . 7 . . * . . . . . oe . a es tat ws . eee . mae 4. . . . . a . . ' toe! wed . _@ fi . e . . . _ . 1 x * oe + . rs . . . : Be a PRODUCED : a ra ~. %e sees GO toms eed Oo 8 pee & Ae eh et ee2 2 oe 1142 1142 wee Yani Yaniber 1142 1142 Yani Research & Engineering September 8 1970 Center W S : af MEMO FOR FILE Abo PIDRO DIVN VISIT TO INLAND DIVISION OF GENERAL MOTORS - AUGUST 31 1970 Brake Lining Decomposition Products Dr. Merle Gibson Medical Director of the Inland Division of General Motors commented during the M Research Center session of the Asbestosis Course held June 15 through 18 1970 at Mt. Sinai Hospital that results of work at Inland did not agree with the data presented by Jerry Lynch on the decomposition of brake lining materials He agreed to set up a meeting with Dr. George Rappaport head of the Chemical Laboratory at Inland's Dayton laboratory to review both Inland and M research on this project After several brush I was able to arrange a meeting with Dr. Gibson and Dr. Rappaport on August 31. Also present during part of the meeting were Mr. G. W. Beck Chief Engineer for Inland and Mr. J. Joe H. Overwein Assistant Chief Engineer Summary Dr. Rappaport doubted the validity of the general data presented by Jerry Lynch on the breakdown of brake linings After reviewing M's data and discussing peripheral information he is convinced of the validity of our data showing less than 1 per cent chryso- tile content He suggested as a final test that the biological effect of the brake lining decomposition products be determined by animal tests These may be sponsored by General Motors with Dr. Selikoff Dr. Gibson still believes asbestos to be the main cause of lung atmosphere no cancer and objects matter how slight to any additional I doubt if he can input to the be convinced otherwise Discussion Dr. Dr. Rappaport was quite frank in his discussion especially Gibson was not present Inland has done no significant when work on capturing and analyzing reaction products from brake wear They were planning to begin a project in the near future PRODUCED JM - 83 MEMO FOR VISIT TO FILE INLAND LABORATORIES September 8 Page 2 1970 Dr. Rappaport had been asked to comment on the validity of Jerry Lynch's results le reacted unfavorably to the paper did not accept any conclusions because the paper and 1 presented only approximate fiber concentrations 2 gave no detailed experimental techniques 3 did not define the technique for quantification of fiber content and 4 did not define the effectiveness of collecting all decomposition products He was also concerned about whether the decomposition products whatever they might be were in themselves carcinogenic The following M reference material was used as a basis for discussing our work and answering Dr. Rappaport's questions 1. Research Report 456-2506 December 19 1966 - STUDY OF ~ WEAR DUST FROM BRAKE LINING written by D. Sinclair 2 Research Report 456 June 13 1968 " WEAR PRODUCTS FROM BRAKE LINING written by S. W. Wegrzyn 3 Research Memo M456-386 November 8 1967 - COLLECTION OF WEAR DUST FROM AUTOMOTIVE BRAKE ASSEMBLY DURING INERTIA DYNAMOMETER TEST written by W. R. Randolph 4. Research Report 404-67 August 3 1970 - METHOD FOR THE QUANTITATIVE DETERMINATION OF CHRYSOTILE FIBER IN SAMPLES FROM VARIOUS SOURCES written by A. F. Burns K. L. Jaunarajs and G. P. Reimschussel The discussion included 1 A review of test apparatus and techniques with special reference to the millipore system of collecting samples and its known efficiency in collecting all particulate decomposition products 2 The techniques for quantifying fiber including the previous point count method and the more recent radioactive tracer method 3. The quantitative test data showing that 50 to 80 per cent of the wear products were collected as either airborne or in the box samples PRODUCED JM - 83 MEMO FOR VISIT TO FILE INLAND LABORATORIES September 8 1970 Page 3 4 Analytical data on both the airborne material and the com- posite material illustrating the collection of all residual products from decomposition of asbestos contents equal Mg0 and S102 5 Pictures of airborne and total composite samples 6 Discussion of amorphous material vs fosterite in the decomposition products with different severity of wear as evidenced by average drum temperatures of 175 330 and 550F respectively 7 Actual detailed chrysotile contents in the various samples and their relationship to the chrysotile content in the original product We also discussed certain subjects which Dr. Rappaport indicated he was particularly interested in These included 1 Asbestos bodies vs ferruginous bodies 2 Factors influencing respirability of fibers ~ including Timbrell's work and recent Battelle work on retention of extremely fine particulate matter 3 The proposed programs on the effect of fiber diameter fiber length and aspect ratio including M programs Webster's work and others Dr. Rappaport was particularly concerned with the effect of particle size and fiber diameter of the decomposition products and its relation to respirability 4 Extraction of minerals from lung tissue including low temperature ashing and hydroxide of Hyamine treatment After a full morning's discussion Dr. Rappaport indicated to Messrs Beck Overwein and Dr. Gibson that he was satisfied the decomposition products in fact contained only very small quantities of chrysotile He suggested the desirability of conducting tests to show that these decomposition products were not biologically harmful and calculating the actual net input of chrysotile to the ambient air from the decomposition of brake linings based on our data and known brake lining statistics We have already recognized the complexity of such an undertaking in our calculations on the fiber contributed by decomposition of asphalt asbestos paving For example how much fiber is removed per day from the atmosphere by fall rain wind migration etc. as compared to the input from any source of contamination PRODUCED ; JM - 83 MEMO FOR VISIT TO FILE INLAND LABORATORIES September 8 1970 Page 4 General Motors through Dr. Gibson is seriously considering funding work at Mt. Sinai but no specific program has apparently been defined Inland personnel were invited to visit us at the Research Center at any time to discuss the problem and any of their suggested programs I will send Dr. Rappaport those portions of the mentioned Research reports which can be released without disclosing proprietary information Dr. Gibson is still a firm believer that asbestos is the major positive cause for lung cancer I think he is overpowered by the Selikoff mystic and that it is worthless to try to convince him otherwise then by direct statements from Dr. Selikoff However the others present at the meeting could probably be convinced that no problem exists.by a few animal experiments with calcined asbestos calcined serpentine and brake lining wear material i S. Speil SS CC J. R. M. Hutcheson H. M. Jackson DH F. L. Pundsack L. R. Blair Att J. Dec . M. Fenner Mr. Donovan J. P. Leineweber W. C. Streib . Asbestos Plant , PRODUCED JM - 83 Manville Environmental Control Systems Division Box 159 Manville N. J 201 777 0000 08835 June 30 1971 bec 1. W. Hendry - Asbestos 1500 11 G. Donovan A. Boisclair Mr. Carl L. Welshman Senior Buyer Rogers Corporation Rogers Connecticut 06263 Dear Mr. Welshman Your letter of May 18 1971 has been referred to me for to our reply Mr. Anthony Boisclair Presently there are no standards applying specifically to airborne emissions of asbestos fiber other than those that apply to discharge of particulate matter in general The office of Air Pollution Control in the Environmental Protection Agency of the Federal Government presently is working on emission standards for asbestos manufacturing plants It is expected that these standards will be published Inte September 1971. It is highly probable that in order to conform to these standards process emissions of asbestos fiber to atmosphere will require high efficiency fabric bag filter dust collectors for control Relative to plant working conditions the new Occupational Safety and Health Bill will require that the airborne levels of asbestos fiber be below the established Threshold Limit Value Threshold Limit Values refer to airborne concentrations of substances and represent conditions under which believed that nearly all workers may be repeatedly day after day without adverse effect it is exposed The present Threshold Limit Value for asbestos fiber has been established under the Healey Public Contracts Act at 12 fibers per milliliter greater than 5 microns in length or 2 million particles per cubic foot depending upon the measurement technique used It is expected that shortly the Federal Government will reduce the Threshold Limit Value to 5 fibers per milliliter and will delete any reference to particulate count PRODUCED PRODUCED Mr. Carl Page June 2 30 L. Welshman 1971 An industrial hygiene survey using proper measurement techniques is necessary to determine if the various workplaces in your concern comply with standards If you do not have the capabilities of performing the survey yourself our Industrial Hygiene Engineering Services Department would be very glad to perform this survey for you I enclose a brochure describing the activities of this group Please do not hesitate to contact me if you have any questions Very truly yours te un Edmund LTE Edmund M. Fenner Director Environmental Control EMF ems Enc DHQ - Asbestos Fiber August 15 1972 Sales N. W. Hendry CC W. L. Vanderbeek J. R. Hutchenson F. J. Solon Jr. H. B. Moreno C. L. Stake E. M. Fenner H. Jackson BENDIX CORPORATION SOUTHFIELD MICHIGAN ASBESTOS HEALTH SEMINAR 8/8/72 A seminar on Asbestos Health was held at the Executive Offices of the subject company on the above date The format is attached as is the list of Bendix attendees This presentation can form the basis for future M presentations on A as well as for the A.I.A. regional seminars now being planned Our presentation was very well received and from the Chief Operating Officer on down all Bendix personnel expressed their appreciation and acknowledged that the information presented is of considerable help to them During our visit we had an opportunity to hold meetings with B.B. Burton J. Armstrong H. Stolar and C. Menz These occurred at dinner breakfast and lunch as well as immediately before and after the seminar Questions were as follows 1 Cost per employee to meet OSHA TVL Requirements a of 5 fiber Arthur D. Little Study estimate employee b of 2 fibers estimate employee 2 Accuracy of Tests for fiber content in air our answer + 20-25 at TLV of 5 3. How is brake lining dust disposed of Resulted in general discussion covering pelletizing land fill etc. 4 Questions by Heitman to Dr. Wright during presentation were answered by Wright's total presentation An example was risk on grinding linings in garages PRODUCED JM - 83 Answer Do not flow dust off brakes Use vacuum Any time limit an employee can be on a job that is hazardous and do we rotate people on such jobs Answer No we correct the problem so that the hazard is controlled Can technological approach work in controlling problems Answer We do the following a reduce forming and finishing by technical changes b educate personnel to reduce costs and work better C. work towards least expensive solution Ex use of wet or damp resin mix Have we been cited by OSHA Answer Yes 10 How do we employees handle OSHA of stations Requirement to notify that are hazardous individual Answer station what is 1 Post on bulletin board results of surveys that are over limit being done to correct 2 advise Any value in taking your own dust counts side by side with OSHA Inspector Answer We try to take simultaneous samples Does 29 help in getting more cooperation from OSHA Answer We really has tried this and far from OSHA can't where tell any difference Bendix it was done no citations so PRODUCED 11 General questions on air samplers and pumps a How many do we have Answer 100 b Cost 13 Answer pump pumps ) note we do have some Bendix . $ charger How do of man you and secure Industrial hygenists how much training what type Answer 1 Secure man with 2 yr college or college grad 4 yrs Train in house Takes 6 months for man to become fully operative How many do you have Answer 20 full time 14 If glass fiber lodges in lung what damage Answer a glass has almost no effect vs. asbestos b However there is some evidence that very thin glass fibers can cause a problem Still under investigation C. some coatings have been found to render glass inert in the lung d if we could determine the method of coating particles or fiber similar to the natural method in the lung by iron & protein problem would be solved Work going on in an attempt to do this PVNP Polyvinyl N Pyridene works on some silicates and quartz On quartz PVNP destroys free bond present on quartz surface 15 With advent of OSHA have we in compensation claims found any marked increase Answer No great increase PRODUCED PRODUCED JM - 23 ete a ne San AS 16 How do you comply with requirements on including employees in Environmental Control Committees Answer We've done this for years in our employee safety committees - just changed the group's name This is an excellent employee communication media I discussed the possibility of our securing business at the Cleveland Plant with Harry Stolar and Charlie Menz They were encouraging and I will pursue it through our contacts I talked with Bob Burton on August 13 and discussed it with him He said there was some discussion at the top level on this I expect our visit will pay dividends informed Will keep you H. G. Donovan Attachments 1 Attendees From the Bendix Corporation 2 Agenda 3 Health Aspects of Exposure by Inhalation of Asbestos Fiber PRODUCED JM - 83 ATTENDEES FROM THE BENDIX CORPORATION Charles E. Heitman Charlie W. L. Miron Bill Hank Bobel H. O. Stolar A. C. Joines Al Neil Saunders R. B. Hungate Bob C. ilenz Charlie R. B. Burton Bob J. W. Armstrong Jim H. Kaplan Joe Tierney Aubry Raymond Vice Chairman and Chief Operating Officer President Automotive Group Staff Assistant Director of Management Advisory Staff Senior Staff Executive to Chief Operating Officer Director of Cost Reduction and fg Engineering Corp. Vice President Executive and Group- General Manager Friction Materials Division Staff Assistant for the Vice President Manufacturing On Environmental Control Corporate ilanager for Safety and Health Vice President Relations Public Director Public Relations Legal Staff PRODUCED JM - 83 AGENDA ' ENVIRONMENTAL HEALTH PRESENTATION TO BENDIX CORPORATION EXECUTIVES SOUTHFIELD MICHIGAN - AUGUST 8 1972 I. INTRODUCTIONS H. G. DONOVAN Product Marketing Manager Asbestos Fibre Division A. Introduction of Manville personnel II MEDICAL ASPECTS OF ASBESTOS HEALTH GEORGE W. WRIGHT M.D. Director of Medical Research St. Luke's Hospital Cleveland Ohio Medical Consultant to M III OSHA REGULATIONS H. M. JACKSON Director of Employee Relations E. M. FENNER Director of Environmental Control IV CUSTOMER RELATIONS W. L. VAN DERBEEK Vice President Mining and Canadian Products Divisions V. VI VII IMPACT OF OSHA REGULATIONS ON ASBESTOS MANUFACTURING USE H. B. MORENO Vice President Industrial Products PUBLIC RELATIONS ASPECTS OF ASBESTOS HEALTH C. L. STAKE Production Manager Divisions Industrial F. J. SOLON JR Vice President Corporate Relations A Health Aspects of Exposure by Inhalation of Asbestos Fiber G. W. Wright M.D. 1 Biological effect in humans and experimental animals 2 Is the biological experience the same in all types of commercial operations Mining and Milling Canada - Italy - Russia - South Africa Textiles - Asbestos Cement - Building Materials Friction Materials Insulation trades 3 Reasons for variations observeidn 2 above - Kinds of fiber - , short thick thick Chemistry - geometry and size thin long \ thin Dose Generated - Inhaled - Destroyed - Retained i Location of fibers Bronchi - Alveoli - Pleura Factors Cigarettes - Trace Metal - Other 4 Risk to employees in BL manufacturing McDonald Chrysotile - size of fiber - dose data - OSHA Enterline 5 Risk to Public from BL use General Public Garages Fate of Fiber Animal Experiments PRODUCED JM PRODUCED Manville Manville Corporation 22 East 40th Street New York N.Y. 10016 Executive Offices June 28 1971 Mr. Samuel G. Warr U. S. Steel Corp. 600 Grant Street Buyer Pittsburgh Penna 15230 Dear Mr. Warr Recently you requested toxicological Manville Chrysotile Asbestos Fibre information concerning Johns- It is a pleasure to provide you with this information Asbestos is the name given a family of mineral fibers comprised of three major types -- chrysotile crocidolite and amosite - each of which differs from the other physically and chemically between asbestos and health are complicated Studies by this of the relationship diversity Chrysotile is a white magnesium silicate which can be attacked by acids has a positive electrical charge and is flexible and not easily pulverized Crocidolite is a blue ferrous sodium silicate is resistant has a negative electrical charge and is less flexible than chrysotile Amosite is a brown ferrous magnesium silicate and is brittle and easily pulverized has a negative electrical charge In the United States chrysotile amosite and crocidolite asbestos are all used Chrysotile is by far the most common is primarily mined in Canada and the U.S. and accounts for about 90 of the asbestos consumed in this country For workers who handle asbestos fibres in mines mills factories and some building and insulation trades the industry shares with doctors Public Health officials and others involved in industrial medicine a concern about possible health effects from excessive job exposure to asbestos dust We have long recognized the risk of a particular lung disease called Asbestos Lion Tome workers This malignant disease is brought on aiter inhalation of excessive concentrations of 7 asbestos dust over .1 peri of many years Asbestosis is one of the lung diseases called Pneumoconiosis PRODUCED JM - 83 Mr. Samuel G. Warr -2- June 28 1971 Recent medical studies have indicated that the disease Asbestosis and other pulmonary diseases claimed to be associated with Asbestosis are dose and time related The occupational use of asbestos fibre therefore can achieve the same degree of safety as the use of any other potentially toxic providing adequate control measures are taken The current threshold limit value TLV for asbestos dust as stated in the Federal Occupational Health and Safety Act Federal Register Saturday May 29 1971 Volume 36 No. 105 Part II Page 10506 is 12 fibres per milliliter of air greater than 5 microns in length as determined by the membrane filter method at 430X Phase Contrast Magnification or 2 million particles per cubic foot of air as determined by the impinger method of sampling To control asbestos dust to within the prescribed threshold limit value we recommend that operations which present a source of dust should be equipped with mechanical ventilation exhausting into a collector utilize wet processes where possible maintain good housekeeping throughout the work area including removing scrap material from floor and other horizontal surfaces Scrap should be disposed of in closed containers - A program of to determine industrial hygiene environmental monitoring is highly that threshold limit values are not being exceeded desirable If dust concentrations cannot be controlled to within the threshold limit value U. S. Bureau of Mines approved types of respirators for pneumoconiosis producing dusts should be worn I am attaching the following medical references that substantiate dose and time relationship of exposure as related to the development of disease 1. Mortality in the Chrysotile Asbestos Mines and Mills of Quebec , J. Corbett McDonald M.D. Archives of Environmental Health Volume 22 June 1971 2 A Study of Mortality of Workers in an Asbestos Factory M. L. Newhouse M.D. British Journal of Industrial Medicine 1969 26 294-301 3 Identification and Control of Asbestos Exposures L. J. Cralley Ph.D. U. S. Public Health Service American Industrial Hygiene Journal February 1971 PRODUCED JM - 33 Samuel C. Warr -3- June 28 28 , 1971 Asbestos and Health in 1969 a G. W. Wright M.D. Americaa Review of Respiratory Volume 100 - No. 4 - October Diseases 1969 Epidemiology of Asbestos Cancers Drs Wagner Gilson Zerry & Timbrell British Medical Journal - January 1971 Also for your further information I am enclosing the following papers and booklets Asbestos and Iluman Health Asbestos - A Family of Minerals Asbestos and the Ceneral Public Recommended Salety Practices for Handling Asbestos Fibre Recommended Health Safety Practices for Handling and Thermal Insulation Products Containing Asbestos Applying Recommended Asbestos Practices for l'abricating Handling and Applying Cement Products in the Building & Construction Industrics Recommended Asbestos Health Safety Practices Textile Products for Handling and Fabricating Why Asbestos If you require any additional information or I can be of further assistance please contact me Very truly yours C. L. Sheckler Manager Accident Prevention and Health Administration CLS mw CC J.R.M. Ilutcheson - AFD Asbestos N. W. Hendry - AFD Asbestos 11. G. Donovan - Research < 7 - of PRODUCED JM - 83