Document KG6bYYrJNb8zdyb1OOwkaLMjX

FSicxiaa materials sta. ids institute. me., z. no a. .2 #4, pabamus, a.j. 07$52 misutss or ths meeting . of che ASBESTOS STUDY COMMITTEE Friday, June 14, 1974, at 9:45 A.K. Institute Office, E. 210 Route 4y Faraaus, H.J MgQERS PRESENT I. H. Weaver, Chairmen H. Wagner IL Jacko ` D. E. Stone FOR THE INSTITUTE Raybeseos-Manhattan, Inc. Carlisle Corporation Bendlx Corporation Bendlx Corporation . E. W. Drlslane MEMBERS NOT PRESENT Friction Materials Standards las deuce. Zee. J. Dunderdale E. H. Feierabend World Bestos Company Abex Corporation The meeting was called to order by Itr. Weaver, Chairman, at 9:45 A.M. MINUTES OF PREVIOUS MEETING The Secretary read a summary of che Minutes of the Meeting held June 1, 1973* These minutes had been released and a motion for acceptance had been obtained. . Upon motion duly made, seconded and unanimously passed. It van RESOLVED: To accept the minutes of the June 1, 1973 meeting as distributed. * COMMITTEE MEMBERS There have been changes in the Committee make-up since the last meeting. Ur. Tom Bell of Thermoid has retired. Mr. J. C. Henning of World Bestos has been replaced on the Committee by Mr. J. Uunderdale of World Bestos. Mr. D. E. Scone of Bendlx has been invited to serve on the Committee. The Committee make-up as of July 1, 1974 will be: I. H. Weaver, Chairman K. Jacko D. E. Stone E. Feierabend H. Wagner J. Dunderdale Raybestos-Manhat tan Bendlx Corporation Bendlx Corporation Abex Corporation Carlisle Corporacio World Bestos Cospan ,Minutes of the Asbestos Study CcoalCCe# "2* ' Jun 14* 1974 national emissions stats?ards for asbestos Oa Elay 3, 1974 the Federal Register published clarifying revisions to the EPk National Emissions Standards for asbestos. They exempted "fabricating" which would cover the rebuilding or the re-oanufaccuring of brake shoe asseablies. The definition of manufacturing was clarified to indicate those sources that process commercial asbestos into a produce* It does not m consider a manufacturer to be one who cuts, shapes, assembles or otherwise . alters a manufactured product that contains asbestos. . This, would leave the rebuilding operation outside of the scope of the national emissions standards for asbestos. .* In these clarifying revisions they also give the definition of a visible emission. In essence it was stated that the "no visible emissions" require ment does not apply to uncombined water if that is the aole reason for failure. An additional section on these qualifying revisions was that dealing with disposal of asbestos waste products. The agency will determine whether It is necessary to regulate these sources. No specific statement wes made concerning wests disposal practices but the agency did Indicate that they were going to iook into this problem. * Mr. Weaver advised that the EPA Is considering steps- to Improve* on the emissions standards and In particular Is considering a numerical standard rather then the "no visible emissions" standard. There is no specific report of progress in this area as regards the EPA Emissions Standards. STATUS 0? THE OSHA REGULATIONS During the year a suit was brought by the AJL-CIO against the Deparceest of Labor concerning the Occupational Safety & Health Act. Their petition was aimed at strengthing (not weakening) OSHA regulations. The U.S. Court of Appeals rejected their petition for review. In essence the OSSA Regulations stand as they were originally presented. There is consideration of changing the OSHA- Regulations to be more workpractice oriented rather than based oa numerical standards, Mr. Weaver advised that the Labor Department no longer plans to completely rewrite the standard. Apparently they will try to work In sections on work practices such as housekeeping, warehousing and other areas. There Is very little likelihood of any easing In the two flbers/ce standard that is to go Into effect In 1976. There may be additional recommendations concerning practices to be used when introducing the asbestos fibers into the manufacturing process. In addition they are talking of monitoring techniques, medical surveillance and waste disposal. In response to a question it was stated that a respirator may be used for interim use when one is working towards getting the work place down to the five flbers/cc Halt. However, the respirator is not a permanent solution. MONITORING METHODS FOR SAMPLING ASBESTOS A question cane up concerning the EPA's measurement of asbestos concentrations in place of the "no visible emissions" standard. Mr- Heaver Indicated that Che EPA would like to gee some kind of a measurement that they could rely on. Minute* of the Asbestos Study Coiaaittee -3- June 14, 1974 It vu seeted that the membrane filter method with .the optical microcode still leave* a lot to be dealred. Work is being done on electron microscopy, Problems exist on hw to satisfactorily pick up the sample that is to be measured. Dr. Jacko Indicated that he had been working with the iJuclepore filter for their study for the ffA concerning asbestos emissions from motor vehicle brake and clutches. (The Millipore filter is used in the OSSA Regulations.) . .` A paper vaa shown that had been presented by the Franklin Institute Researdx Laboratories for EPA. This report was entitled # "Development of aa Instrumental Monitoring Method for Measurement of Asbestos Concentrations la or near Sources". This used scanning electron microscopy with microprobe . capability. The scanning electron microscope can see the fiber but cannot tell the structure. The microprobe can Identify the chemical structure. It might be said that the electron microscope can count while the oicroprobe . can Identify. Further work Is necessary to automate this counting. It was stated that the current membrane filter method ean be 50Z off even : with relatively skilled observers. In addition the results vary dnpendlrg upon which section of the sample' is counted. Mention vas made of the Mllllpore . rfUC system for monitoring asbestos. This is essentially'aa Image analyzing method. The same microscope image seen by the operator Is utilized but a * digital computer performs counting and measuring functions. / Mr. Weaver mentioned that there was instrumentation at a cost of learn than $10,000 which would help in the counting. In particular he meadow* cfc* Coulter attachment on the binocular micros cope which projects an image on a TV screen. One can measure length or diameter of the fiber digitally. It Is considerably simpler than the measurement of asbestos under a microscope and there Is less fatigue Involved. It was mentioned that In the Biospherics project for EPA which ch*ckad on pollution of water by motor vehicles optical microscopy was used. Dr. Jacko indicated that he had been in touch with those at Biospherics who had done this work and that he concluded that their results were reasonable. EXPANDING OF CCSPUTTEE BEYOND ASBESTOS * The pros and cons of erpandlng this Committee's activities beyond the asbestos field were discussed. While it was stated that cany of the asbestos programs get Into other problems such as work practices and plant disposal problems, it was felt that expanding the Consnittee's activities into the areas of heat stress, noise and safety related problems night be biting off too much. It was stated that there are sufficient problems in asbestos related fields to keep this Committee busy without adding responsibilities. It was suggested that if need were to be shown for a committee to delve into work practices it would be best if a Hork Practices Connittee were established. The Asbestos Study Comittee in the meanwhile will be involved with work practices where they affect control of asbestos in the work place or the environment. Upon motion duly cade, seconded and unanimously passed. It was RESOLVED: That the Asbestos Study Committee will not expand their activities beyond the field of asbestos. Any such expansion should take the form of a new Minutes of the Asbestos Study Cotwaictee -4- June 14, 1974 AMERICAS! INDUSTRIAL HYCIEUE ttEETOC There ware thrae papers to bo given at thij meeting which should have been of interest to the frletios materials business. One concerned exposure of turnpike toll booth operators to automotive dust by Dlberardinis, Burgess and Lynch. This paper was more concerned with the exposure to carbon monoxide and other gases from the internal combustion engine. This paper was not concerned with asbestos emissions. ^* Another paper was chat concerning observations of two brake 1 manufacturing Industries by Covie, Rajhans, and Moore. This paper (for some uataowa reason) wss scratched from the presentations. . The only paper of direct interest to the friction mstsrisls industry vse entitled, "Ashestoe Exposure During Brake Maintenance and Repair11 by kohl, Anderson, Nicholson, and Langer. This paper concerned wif with. * exposure to asbestos during brake rellnes, primarily la Nee York- city shops. Sane of the housekeeping conditions in theee shops were ilopTnrahl^, They . are perhaps no worse then la other shops throughout the country*; Zt nsy ^ be that the brake industry en help prenute better verUag tadlttm* * for those exposed to asbestos la the field (la the shops than rebel!il bake shoes or install and service brakes on vehicles). The use o sir hossa for * cleaning off brakes Is conon. Good work practices could be advocated? TUe- dust concentrations during ths bloving off of brakss are la excess o the five fibers per cc allowance. There was not sufficient observation using tlaa weighted averages to give complete balance to this paper. The paper was presented in an objective fashion the question and answer* session that: followed was also handled objectively. No earth-shaking conclusions were made from this paper. It was obvious, however, that there is a need for better work practices ec the re-line and installation level. AS5BST0S INFORMATION ASSOCIATION (AIA/NA) In January 1974 Mr. !t. H. Mereness of the Asbestos Information Association wrote concerning listing the Friction Materials Standards Institute as an "affiliated association". At that time I indicated to Mr. Mereness that the Institute would be happy to consider Itself an "affiliated association". In subsequent correspondence with members of the Board of Directors it was indicated that this was premature. One director indicated that ve might be exposing ourselves in an area where we now have a low profile. That is, the friction, material manufacturers are not primary offenders like those in the construction field and in textile operations. Affiliation, as such, might move us into the target area. Another objection had to do with the legal status of any so-called affiliation. Hr. Stickles Indicated that there might be some objection to our being considered an affiliated organization and we would need more information. There were several Board members who indicated chat we should do whatever ve can to support the Asbestos Information Association. In our discussion at the meeting the consensus was that ve should reciprocate and support the Asbestos Information Association. However, considering the absentees at the meeting, it was decided not to make any resolution on this subject. It was suggested that this be discussed further at the Board meeting in June. The Asbestos Study Committee is taking no position as regards being considered an "affiliated association" with the Asbestos Information Association. Asbestos Study Ceffltccee -5- Juae l , 1974 PAN STOTT - A5BEST3S WORKERS' PENSION PLANS There was a brief article la the April 1974 issue of ASBESTOS magazine concerning the UAH's intention to study the occupational hazards to which asbestos workers are exposed with a possibility towards reopening pension plana for these workers. There were no additional specifics concerning the subject in the article. In discussion it appears that the study is being made at the Chrysler Corpora tion. Asbestos workers in the UAW are primarily involved with brake lining and clutch facing canufacture. There ere some UAW plants working on the Assembly of brake linings or clutch facings vhleh could also be involved. This would be the second area where UAW members might be involved where there ere asbestos concentrations in the work place. This would include such brake assemblers as the Bendix group in South Bend9 Kelsey Hayes, Chevrolet Gear and Axis, and Wagner Electric. The aoet significant asbestos use in the automotive field-is In brake lining. Clutch facings are probably close second. However there Is asbestos used * In i*ir ccnfiticning dusts for sone Ford motor company vehicles. This apparent!* is the only significant use of asbestos other than la friction materials. It v/ould appear therefore that any try for a pension program of '*25 years kad out" will be aimed at the friction materials business. PELLETIZING ASBESTOS WASTE PRODUCTS Mr. Dave Stone of Bendix showed some photographs of a sophisticated pelletizing arrangement for taking asbestos dust products from their dust collectors. The process had been described at an earlier meeting. Essentially a small amount, of cement is added and the dust Is formed into pellets and dropped from there Into a truck-for disposal at a land-fill. The pelletizing removes or reduces the problems with dust when a truck Is being loaded and when the dust is being disposed of. Tor Bendix, this operation did reduce the need for a watering operation at the land-fill site. Bendix will use this pelletizing operation at both their Troy, New York, and at their Cleveland, Tennessee plant. The pellets are essentially vet balls when they are dumped at the land-fill. i!r. Stone indicated chat if other parties were Interested in seeing this pelletizing operation he would make arrangement through members of the Asbestos Study Committee. It is suggested that if individuals would like to see the installation at Troy, New York that they contact a member of the Asbestos Study Committee. FOAM SPRAY FOR CONTROL OF DUST tlr. Scone shaved an article on the use of a foam spray for controlling dust in coal mines. (ANALYSIS OF FOAMEROL FOAM AilD ITS CO'.IPARATIVE EFFICIENCY AS A DUST COLLECTOR). It was his intention to follow this up to see if there were applications for the use of foam spray in the processing of friction materials. Suggestions were made that if a foam spray got into the product during the mixing or briqueting stages that it could have an affect on frietlor. material. It was suggested that perhaps the best application for a product of this type was during the drilling or the grinding operations. It .was stated that one of the problems with a spray, or with a paint for chat matter, on the finished product was chat it did have an effect on initial brake or clutch application. This subject was to be investigated further by Bendix to * ' ' ' ~ *' * 1---- 4 nrocessin*. Minutes of the _ Asbestos Study Committee "6- . June 14;a1974 EfTLPPfT GUIDELINES FOR FRICTION MATERLMS MANUFACTURES Itr. Weaver shovsd e document prepared by Sverdrup & Parcel who are consultants for the EPA. This document was entitled, "Development Document for the Proposed Effluent Limitations Guidelines and Hew Source Performance Standards for the Textile, Friction tlaterials and Sealing Devices Industries". This had been published by Sverdrup and Parcel for the EPA. Immediately after the meeting I called Dr. Suxxell of Sverdrup and Parcel. He did not have additional copies available. He suggested that I write individuals in rh* EPA. Be gave the addresses for contacting Dr. Richard Gregg and Ur. J. Z. KLZey, The Secretary was directed to get copies of this document to ell Members of the Institute. * There was a concurrent study being sponsored by the EPA which was being done by Arthur D. .Little. This concerned the economic effects of EPA Effluent Regulations. The Secretary was directed to contact Mr. Basil Igwa to see vhst the-status is on this work. . USE OF BRUSHES TO SILL rACENISC QPEPJTIOtff . ' Mr. Wagner of Carlisle showed a simple brush that he used in his machining operations. The brush would permit the tools Cor the part depending upon the operation) to move by into the enclosure where it was being machined (drilled, cut, other). Chips would fall down. Dust would be collected* He brush would seal the area where the machining was being done end. reduce the dust that ordinarily would leak past the seal. Also it permitted the duse collector to eahaust the asbestos dust with a greater vacm. Hey use such a device in grinding, drilling, and chamfering operations* Sir. Wagner indicated that steps such as this have gone a long way in reducing asbestos concentrations in the work place. INSTITUTE SEMINAR ON SAFETY AND HEALTH At the June 1973 meeting it was suggested that the Institute consider sponsoring a seminar on safety and health. Most of the subjects were related to the asbestos problem. After quescionaires were sent out and reviewed it was * decided by the Chairman of the Asbestos Study Committee and the Secretary of the Institute that there was not sufficient Interest in such a seminar for the Institute to sponsor it. It was indicated chat the members of the Committee, or those suggesting such a seminar, would have to take a very active interest in promoting such a seminar. At this time the Asbestos Study Committee does not recommend further action as regards a seminar. There being no further business brought to the attention of the Coasaittee, upon motion duly made, seconded and unanimously passed, it was RESOLVED: To adjourn. Adjourned: at 1:30 P.M. E. W. Drislane Secretary Av /,