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FILE NAME Manville JMA DATE 1974-1977 DOC JMA058 DOCUMENT DESCRIPTION Meeting Minutes - American Society for Testing and Materials - Task Group on Naturally Occurring Inorganic Fibers with Cover Memo American Society for Testing and Materials Task Group on Naturally Occuring Inorganic Fibers 1976-1977 Committee was mainly comprised of representatives of industrial corporations including WR Cooling fo Asbestos Corporation Ltd. Relative of ACL Treasurer WC Cooling who died from pleural mesothelioma in 1949 and reps from WR Grace QAMA R.T. Vanderbilt and Eternit S.A. Appendix 1 to top document Group opposed lowering statutory occupational exposure limit below 5 cc entirely safe and prudent 3 of 11/16/76 meeting notes Manville Manville Manville R. P. Carter : W. A. Cooper W. B. Reitze From E. M. Fenner File Copics 18 18 OTN Internal Internal Internal Internal Internal CorrespoCorespondec nCodrreespnondcenece Corespondence Correspondence Corespondence Correspondence Correspondence Correspondence Corespondence an f wn F. J. Solon Jr S. Speil W. C. Streib Date = July 31 1974 Calendar Calendar Subject MEETING - 9:00 A.M. AUGUST 6 1974 DEFINITION OF AN ASBESTOS FIBER - OSHA STANDARD As you are aware there has been considerable discussion concerning the definition of an asbestos fiber as presently used by OSHA particularly in regard to the prescribed aspect ratio of 3 to 1 ASTM has organized Committee 34 Committee on Occupational Health and Safety Aspects of Materials Physical and Biological Agents There are a number of subcommittees and task groups within this committee One of these task groups is concerned with naturally occurring inorganic fibers This task group is presently engaged in writing for submittal to OSHA through normal ASTM channels a revised standard for occupational exposure to asbestos fibers One of the important sections being written by this task group is concerned with the definition of asbestos fiber The next meeting of the Task Group on Naturally Occurring Inorganic Fibers takes place on August 14 and 14 in Canada I would very much like to be able to submit to the group a Manville definition of an asbestos fiber In order to accomplish this I am requesting that you attend a meeting to discuss the subject at 9:00 A.M. on Tuesday August 6 in our Conference Room 4 North For background information prior to the meeting the following I enclose 1 A letter to F. J. Solon Jr. describing ASTM Committee 34 2 A definition for asbestos fiber as prepared by a subsection of the task group for affirmative or negative ballotting by the group members R. P. Carteert al Page 2 July 31 1974 3 A series of definitions of asbestos as previously submitted by the following people A. A. Hodgson Cape Asbestos Fibres Limited G. Gagnon Lake Asbestos of Quebec Limited M. Grimard M.D. Department of National Health & Welfare of Canada R. B. Steele Asbestos Corporation Limited A. A. Harvey R. T. Vanderbilt Company 4 A definition of an asbestos fiber as prepared by Dr. Steven Holmes of the Asbestosis Research Council 5 The ASTM present definition of asbestos fiber 6 & 6A Two anonymous definitions of asbestos 7 An anonymous definition of naturally occurring inorganic fibers 8 A copy of the original proposal for the formation of the Tash Group on Naturally Inorganic Fibers 9 A listing of active members of all others on the mailing list the for task group material and E. M. Fenner Attachment 9 000791J 000791J APPENDIX I ATTENDANCE Third meeting of the Task Group on Naturally Occuring Inorganic Fibers Philadelphia Pa 18 and 19 April 1974 W. H. Ashton M. Cossette E. M. Fenner G. J. Foy A. M. Harvey S. Holmes H. H. Kaufman A. M. Kooiman J. F. Martonik R. McCarthy P. W. McDaniel R. H. Mereness P. V. Pelnar M.D. C. S. Thompson A. A. Winer - Johnson & Johnson Co. ~ Recording Secretary - Quebec Asbestos Mining Association - Vice Chairman Manville - Department of Natural Resources of - R. T. Vanderbilt Co. Quebec Secretary of the Asbestosis Research Council T.B.A. Industrial Products Limited - GAF Corporation ~ Representative of the Editorial Subcommittee - Motor Vehicle Manufacturers Association - MESA Department of the Interior Washington D.C. - International Talc - Union Carbide Corporation - Asbestos Information Association America - Institute of Occupational and Environmental Health R. T. Vanderbilt Company - Chairman Department of Energy Resources of Canada Mines and Dr. J. W. Axelson Dr. E. Berry R. A. Bramley W. R. Cooling H. A. Eschenbach P. A. Filteau G. Gagnon G. W. Gibbs Dr. M. Grimard ~ Manville Research and Development Center - Department of Materials Chomistry - Chrysotile Corporation of Australia Pty Ltd. Asbestos Corporation Limited Industrial Hygionist W. R. Grace & Co. Quebec Asbestos Mining Association Assistant Mill Superintendent Lake Asbestos of Quebec Limited > McGill University Department of Epidemiology and Health + Department of National Health and Welfare of Canada MAILING LIST suite A. Goodwin A. A. Hodgson Dr. R. A. Kuntze Dr. J. Lepoutre M.D. B. Lincoln C. G. Morgan K. Morgarcidge T. D. Oulton L. C. Piuze M. Q. Scowcroft W. H. Smith R. B. Steele C. E. Stiefken E. T. Triglea - Head Health Division - Cape Asbestos Fibers Limited - Ontario Research Foundation - Eternit S. A. - Turner Newall Fibre Laboratory - North American Asbestos Corporation - Food and Drug Research Laboratories - Research Associate Minerals & Chemicals Division Inc. - Lake Asbestos of Quebec Limited - Asbestos Textile Institute > Bell Asbestos Mines Limited - Asbestos Corporation Limited - American and Refining Co. Ltd. - Engelhard Chemical & Mineral Industries : 558E American Society for Testing and Materials Committee 34 Task Group on Naturally Occurring Inorganic Fibers Minutes of the thirteenth meeting Louis Mo. 4 May 1976 PRESENT The list of those present is presented in Appendix 1 AGENDA The agenda is presented in Appendix 2 BUSINESS 13.1 Chairman's introductry remarks 13.1.1 It was announced that the Chairman and the Recording Secretary had appeared before theExecutive Subcommittee 34.90 on Monday morning 3 May 1976 to answer questions regarding the submission of comments to OSHA 13.1.2 It was mentioned that representatives of this Task Group had attended each of the subcommittee meetings scheduled on Monday afternoon 3 May 1976 13.1.3 It was announced that it was anticipated that the Engineering Controls Subcommittee 34.30 and the Toxicology Subcommittee 34.20 might join this meeting to discuss jointly the actions taken with regard to the ninth draft of the standard on asbestos 13.2 Minutes of the last meeting 13.2.1 The minutes of the last meeting were adopted 13.3 The ninth draft of the standard for occupational exposure to asbestos 13.3.1 It was agreed that the resolution of the negative votes received by the subcommittees would receive first priority 13.3.2 Negative vote from Mr. D.G. Sarvadi to the Test Methods Subcommittee Section 5.5 The first paragraph in this section refers to a paragraph in Appendix XI In this Appendix there is an expention for materials containing less than 5 percent asbestos I disagree strenuously with this exemption We have had experience with monitoring asbestos concentrations in materials containing less than 2 percent of asbestos fibre greater than five microns in length The airborne concentrations of these materials were well in excess of the peak limit of ten fibers per cm 13.3.2.1 It was argued that the negative vote should be regarded as nonpersuasive because the reasons stated are not specific enough It was pointed out that the identity of the product referred to was not revealed nor was there any indication volunteered of the method used 13.3.2.2 13.3.2.3 It was also argued that fibers coated with binders have been shown to be innert with regard to biological activity It was countered that the 5 percent concentration mentioned is not relevant in view of the paucity of data to support this value 13.3.2.4 13.3.2.5 It was explained that the requirement had originally been limited to products containing 5 percent asbestos because if all products containing even traces of asbestos were included then so many products would be covered that the warnings would loose their impact It was implied that if it should be alleged that everything was dangerous then nothing would be considered dangerous and the warnings would not have the desired effect upon the workers It was resolved that the following statement should be added to the first sentence of X1.4.1 or in cases where airborne concentrations of asbestos in excess of permissible limits may result 13.3.2.6 It was resolved to change the last words in 5.5.1 from Appendix Al to Appendix X1 13.3.3 Continuation of the negative vote mentioned in 13.3.2 - I also feel that the hazards referred to in this Section should be contained in the Appendix on toxicology and epidemiology 13.3.3.1 It was felt that this negative was non persuasive because it would be redundant to repeat the material twice and contrary to directives on brevity received from ASTM Changing the lo- cation of this information was opposed because it was felt that the information quoted was not considered as firmly established and properly belonged in an appendix rather than in an annex forming an integral part of the method 13.3.4 Continuation of the negative vote mentioned in 13.3.2 - Section 5.6 work practices paragraph 5.6.2.1 refers to demolition and removal of asbestos containing materials I feel that there should be a statement here recommending wet methods where possible This is a much more effective work practice control than the simple provision of respiratory protection and special clothing 13.3.4.1 It was argued that this negative vote should be ruled non persuasive on the following grounds Wetting only may not be effective Trials were referred to where airborne concentrations exceeded 5 fibers despite thorough wetting 13.3.4.2 It was added that wet floors can be most alippery is present and therefore can constitute a greater wetting could be counterproductive when asbestos hazard Thus 13.3.4.3 It was resolved that the negative voter would be asked to submit the data showing that wetting is a much more effective work practice control and that if this opinion can be substanciated the negative vote would be reconsidered 13.3.4.4 It was resolved to add the following statement to 5.6.2.1 Any appropriate method of reducing airborne concentrations of asbestos fibers should be used 13.3.5 Continuation of the negative vote mentioned in 13.3.2 - Under Section 7 paragraph The last sentence I 7.1.1 would an editorial have read change should be made In view of the lack of precision employers must resort to multiple sampling 13.3.5.1 This negative vote was upheld 13.3.5.2 Refer to Section 13.3.15 below -4- 13.3.6 Continuation of the negative vote mentioned in 13.3.2 -'Section 8 the analytical procedures contained in the annex should be specified by name that is the fiber count method using phase contact using microscopy and the particle count using low power light microscopy A statement allowing for equivalent methods should also be included The negative vote was judged to be non valid because there is proposed only one method not two as the negative vote implies It was stated that the method is clearly specified by name on page 41 Section A3 Accordingly this negative was voted 4 to 2 non persuasive 13.3.6.2 However the last for the sake of sentence of 7.2 clarity it was resolved to change to the beginning of the paragraph 13.3.7 Continuation of 13.3.2 - Section A an editorial comment is noted that the broad uses listed under 1.2.1 need not be itemised by number 13.3.7.1 This negative vote was ruled non persuasive 13.3.8 Continuation of 13.3.2 - Section 4 I feel that more detailed instructions for the methodology using a midget impinger should be contained in the standard Also a discussion of problems associated with this method should be included 13.3.8.1 It was felt that since the midget impinger method was only mentioned as a referee method for house purposes and not considered as a standard method accordingly a more detailed presentation could not be justified 13.3.8.2 Regarding a discussion of problems associated with method this was felt to be unjustified in view of accorded to this method the the impinger status 13.3.9 Negative mittee vote from - A3.1.3 Mr. C.W. I am not Flickinger aware of a to the Test Methods Subcom- justification to limit the maximum diameter to 3um or the aspect ratio to 1 13.3.9.1 It was stated that the justification was contained in reference 53. Field Information Memorandum 74-72 OSHA 21 Nov. 1974 13.3.9.2 It was added that the original 1 ratio had been an arbitrary choice and that the 1 ratio had the merit of eliminating a significant proportion of asbestos particles Reference 54 was mentioned in support of these allegations 13.3.10 Continuation of 13.3.9 - A3.5.1.1 What about the appearance of the asbestos forms Amosite and Anthophyllite See the Particle Atlas Edition Two Plates 120-125 W.C. McCrone and J.G. Delley Ann Arbor Scientific Publications Inc. Ann Arbour Mich 48106. 13.3.10.1 . It was resolved that this objection was persuasive because the images referred to show individual amosite fibers at high magnification whereas airborne samples taken from workplaces show bundles of fibers at a magnification of only 400 to 450X and their appearance is distinguished from that of by the striations associated with rows and layers rock slivers of fibrils 13.3.10.2 With regard to anthophyllite it was felt that the was non germaine because anthophyllite asbestos is commercially and is only of academic interest objection not produced 13.3.11 Continuation of 13.3.9 - A3.5.1.2 What of asbestos from brake linings or asbestos reference as cited in A3.5.1.1 about the appearance processing See same 13.3.11.1 This objection was ruled non persuasive because any particle meeting the criteria required in 4.2.3 must be counted and conversely any particle not meeting the criteria may not be counted It was indicated that processing and attrition of asbestos products might yield particles that would either still have the appearance of asbestos and therefore should be counted or no longer look like asbestos and be not counted It was mentioned that the dust from brake linings has been proven by ray to be forsterite a decomposition product of chrysotile that is not biologically active 13.3.12 Continuation of 13.3.9 - A3.6.2.7 I recommend leaving positive out of Either phase the sentence can be used 13.3.12.1 It was resolved that this objection was non valid because this requirement and no data was was contained available in the original British standard to justify the claim that either phase can be used It was formity in method whenever also felt desirable to seek uni- results could not be affected adversely 13.3.13 Continuation of 13.3.9 I see no reason why any A3.6.3.1 The statement is glass slide cannot be used too specific 13.3.13.1 This objection was upheld to slides such as It was decided to change slides 13.3.14 Negative vote Subcommittee submitted by Mr. L.H. Hecker - I believe that the midget to the Test Methods impinger method is adequate for defined as a asbestos fiber in dust this as stated However asbestos has been document and the validity of impinger sampling for fibers to my knowledge has not yet been demonstrated Its collection efficiency and degree to which fibers would fragment upon collection and result in a bias toward lower than factual results has not been established 13.3.14.1 This objection was noted that was the considered as a objector states statement that the of opinion It impinger method is adequate for asbestos dust as stated Accordingly no revisions were adopted 13.3.15 Further discussion of item 13.3.5 above 13.3.15.1 It was resolved to revise the proposal adopted by changing employers to analysts 13.3.16 Negative vote submitted to the Engineering Controls Subcommittee by Dr. A.E. Moffit Jr A fifty year record retention period is excessive This requirement would present serious compliance problems even for the large employer If such record retention is for epidemiologic purpose then NIOSH should be the repository for such records Bethlehem's position on this matter has always been that the employer retain medical and monitoring records for the duration of employment plus 10 years and that retention for longer periods should be the responsibility of NIOSH ASTM should not adopt a procedure which has not been adequately justified in previous OSHA proposed standards OSHA has been petitioned by NAM and other concerned groups to clarify the purposes of their recordkeeping requirements 13.3.16.1 This topic was discussed at length and the reasons for adoption of a year period were reviewed In view of the progressive nature of asbestosis and its long 30 years or more period of latency after first exposure it was concluded that the negative vote was persuasive 13.3.17 Negative vote submitted to the Engineering Controls Subcommittee by Mr. M.B. Lore - An overall negative vote is cast on the basis of a the apparent duplication of effort vis the existing OSHA standard for asbestos and the proposed revision thereof and b the absence of documented justification for this ASTM standard in view of these existing OSHA documents ASTM's most constructive action might be to comment on the OSHA proposal rather than to generate a separate standard 13.3.17.1 It was objected that the Executive Subcommittee of 34 has approved this activity It was agreed that the Task Group was not competent to change ASTM policy Accordingly the negative vote was judged to be not valid 13.3.17.2 It was commented that the ASTM is international in scope and that the ASTM asbestos standard could be used outside the USA 13.3.17.3 It was added that this Task Group has commented on the proposed OSHA revision 13.3.18 Continuation of 13.3.17 - -'Section 5.3.2 Posting The signs and labels are not sufficiently instructive The standard is an improvement over the OSHA standard since nontoxic dusts can be exempted from labeling and there are no regulated areas 13.3.18.1 In view of the lack of specific suggestions it was resolved that this objection was non persuasive 13.3.19 Continuation of 13.3.17 - Section 5.4 Personal Protective Equipment - Respirators are permitted only during emergencies unforeseen occurrence and while engineering controls are being installed They should also be allowed where engineering controls are technically or economically infeasible 13.3.19.1 It was objected for such cases that The the regulating agencies negative vote was ruled may non grant a variance persuasive 13.3.20 Continuation of 13.3.17 - Section 5.5 Apprisal of Emplyees of Hazards - The standard would require that employees be given the epidemiology and toxicity information contained in 11 pages of the standard's appendix Such detail would only result in confusion 13.3.20.1 It was objected that only as source to be the material contained in Annex A2 was intended translated by supervisors Accordingly the negative vote was judged to be non persuasive 13.3.20.2 However it was resolved to change Section X1.4.1 line 3 so that Annex A3 will be replaced by Annex A2 13.3.21 Continuation of 13.3.17 - Section 5.6 Work Practices control should be required only where economically and feasible - Engineering technically 13.3.21.1 It was argued feasible the that when it can be regulating agencies proven that requirements are not will grant a variance Accordingly the negative vote was judged to be not valid 13.3.21.2 However it was resolved to revise Section 5.7.2.3 line 4 by changing shall to may 13.3.22 Continuation of 13.3.17 - Section 5.7 Monitoring - Both personal and environmental monitoring are not necessary 13.3.22.1 It was pointed out that both methods are allowed but Therefore the negative vote was judged not valid not mandatory 13.3.23 Continuation of 13.3.17 Section 5.7.4 Monitoring Records - The year period of record retention would be latency period of cancer a year overly period burdensome Considering the would be more reasonable 13.3.23.1 The negative vote was judged in Section 13.3.16.1 above non persuasive for the reasons presented 13.3.24 Negative vote submitted to Mr. K. E. Slusser I have voted negative Asbestos the Engineering on all issues of controls Subcommittee the proposed standard by for - 9- There are thirty subrules in which thirty shoulds or recommendations are made as compared to seven shalls or mandatory statements I have been under the impression that exposure to asbestos was but from the looks of the rules a standard is not needed hazardous Also para 5.4.2.3 lacks a verb to require any action 13.3.24.1 It was ruled that the negative vote contained essentially comments and it was decided to defer these objections to Subcommittee editorial the Editorial 13.3.24.2 However it was resolved to revise Section 5.4.2.3 by adding a colon after the first sentence and by changing to reduce on line 4 to shall be used to reduce In addition it was resolved to revise Section 5.4.2.4 by changing should to shall 13.3.25 Negative vote submitted to the Engineering Controls Subcommittee by Messrs J. Van Schelt and W.F. Paton - In Section 5.3.2 Posting - The words can be in excess are very broad terminology and if adopted by OSHA could cause problems Posting should not be required in areas in which it had been demonstrated that exposure levels are less than the action level At a minimum the phrase should be changed to likely to be in excess 13.3.25.1 The negative vote was upheld be in excess It was resolved to accept likely to Section 13.3.26 Continuation of 13.3.25signs section on caution and dangers 5.3.2.1 Current OSHA standards contain a Suggest that this area be eliminated and reference should be limited to a caution sign shall be posted 13.3.26.1 To accomodate the negative voter it was resolved to add the clause or equivalent at the end of line 3 13.3.27 Continuation of 13.3.25 - Section 5.4.1 In addition to the circumstan- ces and conditions cited there are situations under which respiratory protection should be operations such as Engineering controls 5.6.2.1 the standard permitted For example infrequent maintenance duct cleaning should require use of respirators obviously are not warranted In fact in section requires use of respirators for a normal operation 13.3.27.1 The negative vote was upheld two sentences of 5.4.1 It was resolved to delete the first 13.3.28 Continuation of 13.3.25 - Section 5.4.2.5 respirator program are currently covered by The requirements for a OSHA standards and restatement - 10 - of such program seems extraneous and unnecessary 13.3.28.1 This negative vote was withdrawn by the originator 13.3.29 Continuation of 13.3.25 - Section 5.5 This because it refers first to X1.4 in Appendix then refers to Annex 3. paragraph is Al and this confusing reference 13.3.29.1 The negative vote was upheld Annex 2 It was resolved to change Annex 3 to 13.3.30 Continuation of 13.3.25 - Section 5.7.1 This particular section poses a very real problem and departs from the methodology used for other health standards which distinguish between environmental evaluation and personnel monitoring In essence they indicate that the employer shall evaluate the environment to determine which operations or areas may pose an exposure problem and then specifies the personnel monitoring to be used to evaluate that exposure The employee's rights to observe monitoring so far has been limited to the personnel monitoring phase of the operation and indeed this does seem to be a reasonable Should you take the approach that employees have the right approach to observe all monitoring then in essence you would have a union representative accompanying each industrial hygienist throughout his tours of duty This obviously was not the intent of Cogress in passing the act 13.3.30.1 It was determined that Section 5.7.1 does jection Therefore the negative vote was not pertain to the j dged not valid above ob- 13.3.31 Negative vote submitted Others define TWA = h by Mr. E. F. x conc task Lawrence regarding Section 5.1.2 A + h x conc task B + ..sse ee 8 or hours worked Thus the TWA is calculated by the product of time and concentration of contaminant for each task and the summation of products is divided by 8 or by the number of hours worked 13.3.31.1 It was judged that the definition in 5.1.2 was less appropriate and the negative vote was upheld 13.3.32 Negative vote submitted to the Medical and Toxicology Subcommittee by Mr. M. B. Lore Section 4. Definitions - Only asbestiform varieties of asbestos are included in the definition of asbestos The aspect ratio is maintained at 1 rather than the 1 ratio of the OSHA standard However the coverage of talcs is not clear The following addition should be made to Annex Al page ) A1.2.1.14 Talcs containing asbestos 11 13.3.32.1 It was objected that talcs are not an accepted usage for asbestos defined in Al.2.1 Accordingly the negative vote was judged not as valid 13.3.33 vote submitted to the Medical and Toxicology Subcommittee by Negative Mr. H. Grinsfelder Section 5.1.1 - Inasmuch as the Federal Government is calling for an eight hour time weighted average value of 2 fibers I question E34 permitting up to 5 fibers 13.3.33.1 This negative vote was discussed at length and no agreement could be reached Accordingly it was left in abeyance 13.3.34 Continuation of 13.3.33 - Section 5.1.2 - In the mathematical symbols and designations are the not users of this standard Some further explanation calculated is believed desireable formula for the TWA clear to some potential of how an 8h TWA is 13.3.34.1 This negative vote was upheld It was resolved to revise 5.1.2 as explained in Section 13.3.31 above 13.3.35 Continuatio of In other words for determining 13.3.33 - Section 5.1.3 - What is the lower time limit what is the minimum or shortest sampling time acceptable the peak As it is now stated a sample which would have no significant meaning would be acceptable 13.3.35.1 The negative vote was upheld It was resolved to defer this question to the Test Methods Subcommittee 13.3.36 of 13.3.33 - Section 5.2.2.1 - What is one to do in the Ceovnenttinutahattionthe employer goes out of business and in the absence of an appropriate government agency Shouldn't the agency be spelled out How about the Assistant Secretary of Labor 13.3.36.1 It was confirmed that there are where asbestos is manufactured negative vote was not valid appropriate agencies in all the Accordingly it was judged that countries the 13.3.37 exposed employee Continuation of 13.3.33 - Section 5.2.2.3 - unusually long time for record retention I given to retaining records untiulntaiglo thtehe five years or has reached exposed Fifty years seems to be an suggest that some thought be employee been dead for employee been 13.3.37.1 This negative vote was judged non persuasive for the reasons given in 13.3.16.1 above 12 13.3.38 Negative vote submitted to the Medical and Toxicology Subcommittee by Mr. R. A. Parent - Section 5.1.1 - I question the level proposed If it is based on a % risk as indicated in Paragraph A2.3.2 I find that risk unacceptable I don't believe that there is sufficient basis for considering this as a safe level and I do believe that the credibility of the entire document is damaged as a results of this 13.3.38.1 This negative vote was left in abeyance for the reasons stated in 13.3.33.1 above 13.3.39 Continuation of 13.3.38 - Section ought to be an indication that the same household should be recorded 5.2 - Somewhere in this ection there work habits of others living in the particularly if they are working with asbestos 13.3.39.1 It was objected that this ponsibility of employers valid would go beyond the currently accepted resTherefore the negative vote was judged not 13.3.40 Continuation of 13.3.38 - Section 5.2.1.1 - Medical examinations should be made available to workers exposed to any significant amount of airborne asbestos The question remains what is significant I believe that one can differentiate between standing next to a car when the brakes are applied and mining asbestos However where does one Clearly industries which mine or use raw asbestos in draw open the line systems should make medical examinations available to their employees On the other hand should the service station attendant who does brake jobs be offered a physical It seems impractical but is worthy of further discussion 13.3.40.1 The for negative vote was upheld It was resolved to set the action limit medical examinations at one half the permissible exposure limit 13.3.41 Continuation of 13.3.38 - Section 5.2.1.2 - I believe that a preplacement physical should be required by the employer simply to minimize corporate liability in case of future litigation' 13.3.41.1 This negative vote can offer this was judged non persuasive because not all employers 13.3.42 Continuation of 13.3.38 - Section 5.4.3.4 - Unqualified Comment I believe that stringent regulations should be enforced in order to the employee from taking his work clothes home to be laundered prevent 13.3.42.1 The negative vote was upheld 5.4.3.4 by changing clothing It was resolved to revise line 1 of to work clothing and to revise line 2 by changing done to done by the employer 13 13.3.43 Continuation of 13.3.38 - Section 5.7.1.2 - Unqualified Comment Some provision should be added so that if new equipment is added or old equipment removed readings should be taken shortly thereafter in order to prevent undetected elevated levels potentially over a six month period I believe that six months is too long as is three years in Paragraph 5.7.1.3 and six months in Paragraph 5.7.2.2 13.3.43 It was leaves objected the onus that 5.7.2.2 sets only the minimum monitoring interval on the employer to ensure a frequency sufficient to represent with reasonable accuracy the levels of exposure Therefore the negative vote was felt to be non persuasive and 13.3.43.1 However it was resolved to revise section 5.7.1.2 and 5.7.1.3 by changing should to'shall 13.3.44 Continuation of 13.3.38 - Section A2 - The epidemiology data appears to be incomplete I offer the following references to supplement those indicated in the document P. Elwood et al Brit J. Ind Med 21 304 1964 T. F. Mancuso & A.A. Attar J. Occup Med 9 147 1967 L. O. Meurman Environ Res 2 30 1968 P. Enterline et al Brit J. Ind Med 30 162 1973 In addition the review indicated in the attached references by T. J. Haley contains a wealth of epidemiological information J. Assuncao M. Corn Am Indus Hyg Asen J. 36 D. T. Hughes Med Sci Law 14 3 147-51 1974 J. S. Jones Med Sci Law 14 3 152-58 1974 V. A. Dohner R. G. Beagle W. T. Miller Am Rev. of . 811 1975 U Respir Dis 112 11997755 REV COUNTING EPIDEM G. Scansetti G. Giancarco et al Arch Environ Health 272 1975 T. J. Haley J. Pharm Sciences 64 9 1435 1975 P. C. Reist Am Indus Hyg Assn J. 36 5 379 1975 E.L. Svirskii et al Gig Tr Prof. Zabdl 3 39-40 1973 C.A. 79 9403X E.S. Flowers Am Indus Hyg Ass J. 35 11 724 1974 INGESTION P. Gross et al Arch Environ Health 29 341 1974 AMBIENT A. L. Reeves et al Environ Asbestos Fibers in Ambient Air Res8 178 1974 of Calif J. C. Murchid et NTIS Report #PB 226-302 Mar 1 1973 al + 14 - 13.3.44.1 The negative vote was upheld It was resolved to initiate a Toxline search going back to 1970 It was also agreed to add information on where to procure referenced documents 13.3.45 Continuation of acceptable 13.3.38 13.3.38 - Section A2.3.2 - One percent risk is not 13.3.45.1 It was explained that this cated that the one percent was not accurately stated It was indirefers to the probability of detecting the earliest clinical rate of mortality signs of pulmonary or morbidity The change and not to a one negative vote was upheld percent and it was agreed that this section would be revised accordingly 13.3.46 Continuation of exposed to dust 13.3.38 - Section X1.4.1 - How about containing less than % asbestos Is this individual the person heavily there no risk to 13.3.46.1 In the absence of persuasive supporting data this negative vote was ruled as non 13.3.47 Continuation of 13.3.38 13.3.38 - Section X1.6.1 - Is there any indication that sputum cytology could be of use as a diagnostic tool here If so couldn't this be included as a possible supplemental procedure Are there other supplemental procedures that could be suggested but not required here How about clinical chemistry 13.3.47.1 In the absence of persuasive supporting data this negative vote was ruled non 13.3.48 It was resolved to revise 3.2.3.1 by changing cancer to tumour 13.3.49 In view of the lack of time it was resolved to defer the review of the other negative votes to the next meeting of the Task Group 13.4 13.5 13.6 A document entitled Ref The Asbestos Situation in Sweden from Skandinaviska Elernit AB was submitted and a copy is attached hereto in Annex 3 A document entitled News About Work Environment - Sweden was submitted and a copy is attached hereto in Annex 4 An article entitled Some Common Questions Answered by J. D. Christian Northern Miner Dec 11 1975 was submitted and is attached hereto in Annex 5 - 15- 13.7 A memorandum containing comparative data for chrysotile counts at 1 versus 1 was submitted and a copy attached hereto in Annex 6 13.8 A handwritten manuscript giving the disposition of Engineering Control Subcommittee was submitted and Annex 7 negative votes by the is attached hereto in 13.9 A handwritten manuscript giving the disposition of negative votes by the Test Methods Subcommittee was submitted and is attached hereto in Annex 8 13.10 Date and place of the next meeting 13.10.1 It was resolved to meet again Institute of Occupational and will be notified of the exact at the beginning of November 1976 at the Environmental Health in Montreal Members meeting date and time APPENDIX 1 ATTENDANCE Thirteenth meeting of the Task Group on Naturally Occuring Inorganic Fibers of ASTM Committee E 34 at St. Louis MO 4 May 1976 Mr. Mr. Mr. Mr. Mr. Mr. Angstrom W. Ashton G. F. A. Brink P. Brown W. R. Cooling M. Cossette Miss D. Decima Dr. M. Grimmard Mr. A. M. Harvey Mr. R. M. Kirkpatrick Mr. P. Kostic Mr. E. F. Lawrence Dr. J. Lepoutre Mr. R. W. Murry Mr. T. D. Oulton Mr. D. G. Sarvadi Mr. Van Shelt Mr. A. A. Winer - - Johnson & Johnson - Quebec Asbestos Mining Association - American Society for Testing and Materials - Asbestos Corporation Limited - University of Sherbrooke Recording Secretary - Dupont - Environmental Health Canada - R. T. Vanderbilt Co. Health and Welfare - Dupont - W. R. Grace & Co. - Tennessee Eastman Co. - Eternit S.A. - National Paint and Coatings Association - Engelhard Minerals and Chemicals Co. - Williams Co. _ Pratt & Whitney Aircraft Co. - CANMET Department of Resources of Canada Energy Mines and Chairman APPENDIX 2 Task Group on Naturally Occuring Inorganic Fibers ASTM Committee 34 AGENDA 13th Meeting Time 4 May 1976 from 9:00 to 16:00 h Place Chase Park Plaza Hotel Louis Missouri Business 1. Chairman's introductory remarks 2. Minutes of the last meeting 3 The ninth draft of the Standard for occupational exposure to asbestos 4 The 6th draft of the Submission of comments on the notice of proposed rulemaking occupational exposure to asbestos 5 OSHA Hearings on their latest proposal 6 old business 7 New business 8 Date and place of the next meeting v i ia ee , aos PBB . o : ae ' a, stg thes Sie ate a st a ta apap Hasireaga ne > *, Pee!f" American Society for Testing and Materials Committee 34 Task Group on Naturally Occurring Inorganic Fibers Minutes of the fifteenth meeting Denver CO 16 November 1976 PRESENT The list of those present together with the mailing list is presented in Annex 1 AGENDA The agenda is presented in Annex 2 BUSINESS 15.1 Chairman's opening remarks 15.1.1 Attendees were welcomed by Chairman Winer 15.1.2 It was emphasised that the need for an ASTM standard was becoming urgent 15.2 Minutes of the last meeting 15.2.1 It was resolved to revise Section 14.3.1.4 line 3 by changing not to not necessarily 15.2.2 It was decided to modify Section 14.3.1.5.1 line 9 by changing proposed to discussed 15.2.3 It was agreed to correct Section 14.5.1 line8 by deleting and manmade 15.2.4 Editorial note In a letter dated 29 November 1976 Mr. A.M. Harvey indicated that Section 14.5.1 line 13 should be corrected by changing 5-2 to '12 15.2.5 It was resolved to revise Section 14.2.2 by deleting the last two sentences 15.2.6 With the above revisions the minutes were adopted 15.3 Business arising out of the minutes 15.3.1 It was announced that the following document had been distributed with the agenda G.W. Gibbs and C.Y. Hwang Physical parameters of airborne asbestos fibres in various work environments - preliminary findings It was stated that this document supports the adoption of a double standard In particular it was pointed out that this document reports the percentage of chrysotile fibers with diameters less than 0.5 ...mand length greater than 5 um that are invisible in the optical microscope at 400 to 450 X as follows Dryer Bagging Carding 1.45 percent 1.0 percent 0.4 percent It was also announced that additional work is underway It was commented that higher fiber counts in the manufacturing and end use industries may be partly due to the presence of extraneous non asbestos fibers 15.3.3 It was reported that the U.S. Bureau of mines is stetting up a particulate mineralogy unit Their scope was said to include assistance in identifying minerals that are important to health regulation It was commented that it is most important to identify the particles in question Those interested in obtaining further information were urged to communicate with the Program Coordinator Dr. William Campbell Metallurgy Research Center College Park MD 15.3.4 It was reported that the large factory in England manufacturing industry had shown that a limit one experience at of 2 fibers 8h TWA with 5 fibers maximum excursions could contain health hazards completely Accordingly it was said that they regard the 2 fibers cm limit as circumstances It was one that they must not exceeded under any also mentioned that all pertinent areas of the factory are checked by means of the gridded Royco tester on a weekly basis It was explained that this apparatus shows a red reading for counts above five and yellow for two to five and green for two or less 15.3.5 The opinion was voiced that plant monitoring is a vital adjunct to personal monitoring 15.3.4 It was stated that based on McDonald's extensive epidemiological studies a limit of 5 fibers was entirely safe and prudent Thefore it was emphasized the proposal for a 3 year time period for reducing the limit from 5 to 2 fibers could not be supported It was added that the best practicable technology could not allow better concentrations to be attained in mines and mills Therefore it was urged that the 10th draft of the Standard be revised accordingly 15.3.4.1 It was countered that the uninformed public would object to a double standard 15.3.5 It was proposed that a limit the health of workers and to of 2 afford fibers was needed to repect them an adequate safety margin 15.3.5.1 A proposal to the effect that 2 fibers should be considered as a goal rather than a limit 15.3.6 It was stated that a voice vote had been taken at the last meeting and had it was pointed out not been placed on that the possibility of such the agenda It was demanded a crucial vote that a letter ballot be issued to allow other Task Group members to voice their opinions 15.3.6.1 The question was draft until such raised as to what limit should appear in the next time as the letter ballot could be completed 15.3.6.2 The timetable for adoption of the asbestos standard was reviewed and the following forecast was established 17 November 1976 - Mail out a letter ballot requesting a vote on the following four options for an exposure limit 1.2.3.- Five fibers Two fibers Five fibers in mines and mills and two fibers in manufacturing and use industries 4.- Five fibers reducing to two years and two in mines and mills fibers in three fibers in manufacturing and use industries 17 December 1976 - Deadline for ballot - Mail results to Mr. P. Brown at ASTM for transmission to Subcommittee Chairman 17 Dec76 to 7 Feb 1977 - Push to get subcommittee ballots completed 7 February 1977 - End of subcommittee ballots 7-14 Feb 1977 - Resolve 14 February 1977 - Submit negative_from the subcommittees resolutions to Mr. P. Brown 17 April 1977 - Main 34 meeting submit for adoption 15.3.7 It was proposed that Section 5.1.1 in the 10th draft of the standard be revised by and by adding changing promulgation by ASTM on line 8 the following sentence 2 fibers Is a to adoption desirable level for all industry and also desirable for mining and milling when the technology is available 15.3.7.1 The question was raised as to what is the best available technology and who would have the authority to decide It was stated that the best current technology could reduce airborne concentrations to 5 fibers at best in mines and mills 15.3.8 It was proposed that the fourth option mentioned in 15.3.6.2 above be modified by calling for a limit of 5 fibers in mines and mills only until such time as technology could be demonstrated that would permit attainment of 2 fibers 15.3.8.1 It was proposed that the following statements be substituted for this last proposal Because of the constrainsts of engineering feasibility and the limitations of presently available materials the limit of 5 fibers is to undergo annual review to determine if the technology has progressed sufficiently to permit the adoption of more demanding exposure limits 15.3.9 It was reported that the Baudry Commission had studied the coefficient of correlation between the midget impinger data of J.C. McDonald and the values obtained by the membrane filter technique It was said that for 623 readings a median value of 0.72 has been found versus the coefficient of 4.96 used 15.3.10 It was proposed that option No.4 as stated in 15.3.6.2 above be dropped leaving only Nos 1,2 and 3. This proposal was alleged to be based upon the absence of a proven need to reduce concentrations to the levels called for in No.4 and upon the impossibility of winning any substancial consensus 15.3.11 It was factor proposed inherent that in a information on the magnitude of the safety limit of 5 fibers be added to allay any reservations on the wisdom of observing this limit until the more desirable limit of 2 fibers can be made possible when the required technology becomes available 15.3.12 After extensive discussion it was resolved to retain only the first three options presented in 15.3.6.2 above on the letter ballot 19.3.13 It was stated that presently available studies indicate that the fibers exposure limit of 5 is located below the level where disease becomes manifest 15.3.14 It was proposed that only option No.2 and an option merging Nos be left on the ballot This proposal was not endorsed 3 and 4 15.3.15 It was prop as follow sed 12 that the statement reported in 15.3.7 above be revised fibers Is a desirable level for all industry and also desirable for mines and mills The currently available technology fibers permits a reduction to only 5 Attainment of a 2 fibers limit in mines and mills is now restrained by engineering and material limitations It is recommended that this standard be reviewed annually 15.3.16 It was suggested that option No.1 be dropped but this could not be agreed upon 15.3.17 fibers It was agreed that the words reducing to 2 in 3 years would be deleted to merge options No.3 and 4 presented in 15.3.6.2 above 15.3.18 It was proposed that the statement reported in 15.3.15 above be revised as follows At present the best available technology does not permit total compliance with a limit of 2 fibers in mines and mills due to restrictions imposed by engineering and material limitations 15.3.19 It was resolved to adopt the following revision to the statement presented in 15.3.18 above does not permit a reduction At to 2 present the best available technology fibers cm In all work places It is considered that the margin of safety should be increased by adopting the 2 fibers standard in mines and mills as soon as practicable Until such time the standard will be reviewed annually 15.3.19.1 The and following Gibbs was counter proposal based upon the made A limit of 5 fibers medical data of is proposed for McDonald mines and mills only on the basis of an extensive epidemiological study Reference 54 carried out in mines and mills only In addition a greater proportion of the airborne asbestos particulates in the atmospheres of mines and mills are visible in the optical microscope and are therefore counted in accordance with the standard method the method of monitoring the atmosphere is biased against mines and mills 15.4 Review of the tenth draft 15.4.1 Refer to Sections 15.3.4 to 15.3.5.1 15.3.6.1 15.3.7 to 15.3.12 and 15.5 Task Group membership 15.5.1 This item was not discussed due to lack of time 15.6 old business 15.6.1 Refer to Sections 15.3.5 and 15.3.6 above 15.7 New business 15.7.1 The following comments were voiced by the Chairman of the Medical Toxicology Subcommittee Dr. R.A. Parent 15.7.1.1 The Medical Toxicology Subcommittee is in a difficult situation in the cage of the asbestos standard due to the large quantity of documentation published 10.7.1.2 There is a need to clarity derivations and to state uncertainties 15.7.1.2.1 It was commented that this has been done adequately 15.7.1.3 Several references in support of the proposed environmental levels are mentioned but none against 15.7.1.4 It is not stated wether or not the levels proposed are greater than those proposed by OSHA or other agencies 15.7.1.4.1 It was mentioned that annual review of the standard would be practiced 15.7.1.5 It was indicated that larger particles may not be respirable 15.7.1.6 It was proposed that in view of the lack of expertise of the average medical practitioner it was the duty of this Task Group to lead the physicion by the hand It was mentioned that a certain degree of guidance would be appreciated Accordingly it was urged that the Task Group reconsider its guidance on medical examinations 15.7.1.7 It was suggested that the appendixes be presented as advice 15.7.2 It was requested that a copy of the tenth draft be sent to Dr. Parent as soon as available This was agreed 15.7.3 It was proposed that the monitoring method be deleted and replaced by a reference to the NIOSH method 15.7.4 fibers It was proposed that medical surveilance be enforced at the 2 limit instead of beginning at one half of the limit 15.7.5 It was proposed that the Medical Subcommittee be asked to write the medical appendix 10 15.8 Date and place of the next meeting 15.8.1 It was resolved held on 2 March that 1977 the next meeting of at 9:00 a.m. at the the Task Group would be Hilton at JFK International Airport in New York 15.8.2 It was mentioned that the subsequent 18 April 1977 with Committee 34 at meeting would be held on the Sheraton in Philadelpia PA 1 ANNEX ATTENDANCE Fifteenth meeting of the Task Group on Naturally Occurring Inorganic Fibers of ASTM Committee 34 at Denver CO 16 November 1976 G.F.A. Brink P. Brown R.A. Clifton M. Cossette E.M. Fenner A.M. Harvey B. Holder P. Laroche B. Lincoln H.H. Kaufman A.E. Martin R. Ortez R. Parent R.J. Schlesinger H.D. Stanley A.A. Winer Quebec Asbestos Mining Association - ASTM Staff U.S. Bureau of Mines University of Sherbrooke Recording Secretary Manville Denver CO R.T. Vanderbilt Co. Inc. Dow Midland M I _ a Lake Asbestos of Quebec Ltd _ Turner & Newall Ltd England GAF Corporation So. Bound Brook N.J. National Institute of Environmental Science Box 12233 NC 27709 Research Park Triangle Consumer Products Safety Commission Xerox Corp. Biotechnics Labs Inc. 1133 Crenshaw Blvd Los Angeles CA 90079 Pfizer Inc. MPM Div 640 North 13th Street Easton PA 18042 CANMET Chairman Ottawa Ontario ANNEX 2 ASTM Committee 34 Task Group on Naturally Occurring Inorganic Fibers AGENDA 16th meeting 2 March 1977 JFK Airport New York N.Y. 1.- Chairman's opening remarks 2.- Minutes of the last meeting 3.- Business arising out of the minutes 4.- Review of the document Draft 1 Standard for Occupational Exposure to Asbestos Rationale Supporting the Selection of a Dual ASTM Standard attached to the notice of the 16th meeting 5.- Review of the 10th Draft of the Standard on Occupational Exposure to Asbestos 6.- Letter ballot 7.- Old business 8.- New business 9.- Date and place of the next meeting American Society for Testing and Materials Committee E 34 Task Group on Naturally Occuring Inorganic Fibers Minutes of the 16th meeting New York Airport 2 March 1977 PRESENT The list of those present is presented in Annex 1 AGENDA The agenda is presented in Annex 2 BUSINESS 16.1 Chairman opening remarks the 16.1.1 It was announced that the meeting hall was sponsored by R.T. Vanderbilt Co. Ltd. Appreciation was extended on behalf of the Task Group 16.1.2 It was mentioned that excuses for absence had been made by the following members G.F.A. Brink w.R. Cooling M. Grimmard P.A. Filteau and J. L poutre 16.2 Minuter of the last meeting with 16.2.1 Photocopies of apologies The minutes written were read minutes were distributed 16.2.2 These mirutes were adopted as read 16.3 Business arising from the minutes-minutes- 16.3.1 Objections were raised with regard to item No. 15.7.3 concernin the suggestion to replace the monitoring method by a reference to the NIOSH method This suggestion was firmly opposed on the basis that the NIOSH method was inadequate and that the proposed monitoring method as presented in Annex A3 differed significantly on the following points 2 or not the cation Section A3.1.3 Section A3.3.2 Regarding aspect ratio Concerning the need to verify wether fibers counted are asbestos Section 43.4 Section A3 5 with regard to definitions with regard to criteria for identifi- Section A3.9.2 About the mounting technique 16.3.1.1 Accordingly monitoring method it was resolved retrin the present 16.3.2 Conderning item 15.3.19.1 in the minutes of the previous meeting concerning justification for a double standard it was suggested that the standard be justified on the basis that OSHA enforces a fiber limit for manufacturing and use applications while MESA enforces a fiber limit for mines and mills This suggestion was not adopted the the and 16.3.3 It was proposed that the statements in the minutes of previous meeting 15.3.19.1 mentioned above be modified by stating facts that reliable epidemiological data exist for mines and mills that the standard will remain under continual review 16.3.4 Further to Section 16.3.1 above last item concerning the mounting technique it was stated that ment laboratories use a variant of the practice the OSHA enforce- NIOSH method It was also reported that NIOSH teaches a somewhat different method when training at tegnologists from industry in the techniques of fiber counting Cincinnati The possibility that NIOSH may have changed their metho- dology at the laboratory level was raised was directed to enquire about this from Dr. The Recording Secretary J. Finkle Director of NIOSH 16.4 Letter ballot on exposure limits adoption of the Standard on occupational Exposure to Asbestos 16.4.1 It returned having was announced that the ballots been mailed only recently had not yet been fully 16.4.2 It was resolved that the following action would be taken depending upon the outcome of the letter ballot statements on be adopted 16.4.2.1 exposure If the ballot limits such as favors a fiber limit the contained in the ninth draft would 16.4.2.2 statements on exposure would be adopted If the ballot limits such as favors a fiber limit then contained in the tenth draft -3- 16.4.2.3 If the ballot favors a dual limit then a statement calling for a fiber limit in mines and mills and a fiber limit in manufacturing and use industries would be adopted with a statement to the effect that the threshold limit value can be more closely approached in mines and mills because of the availability of reliable epidemiological data 16.4.3 It was proposed that Section 5.2.1.1 of the tenth draft be revised to eliminate the requirement for initiating medical surveilance at one half of the exposure limit It was argued that this in effect creates an additional more stringent standard This proposal was adopted by have to be the Task Group confirmed by a but it letter was felt that ballot of the this decision would Task Group Accordingly the Recording Secretary was directed to mail out such a letter ballot 16.5 Regulatory situation in England 16.5.1 It was reported that organized labor in England has begun to react against unnecessarily stringent A newspaper article that appeared in the regulations on asbestos exposure Daily Telegraph on 24 February 1977 was mentioned refer to Annex 3 16.6 Centers for the study of microscopic mineral particles 16.6.1 It was announced that the U.S. Bureau of Mines had created a Unit for Study of Microscopic Mineral Particles at College Park M.D. It was explained that identify minerals for the main purpose of this regulatory purposes It organization was to was added that their first task would be the identification of asbestos fibers 16.6.2 General approval was voiced 16.6.3 Agency have It was reported that the endorsed this endeavor EPA Environmental Protection 16.6.4 It was also reported that Tibor and Zoltai of the University of Minnesota strongly favor the establishment of this unit 16.6.5 Refer to Annex 4 attached hereto for complete details 16.6.6 The initiative of the USBM in setting up the particulate mineralogy unit this Task Group was commended and it was resolved unanimously that favor and recommend the establishment of similar groups with similar objectives and personnel internationnally 16.7 Old business 16.7.1 It was stated that the fiber exposure limit used as a guideline in Ontario Canada was not a regulation and had not been adopted as a law It was added that only one asbestos producing plant operated under this guideline The opinion was expressed that the operation in question could not possibly continue to operate economically under such severe constraints 16.7.2 It was agreed that Section 2.2.1 of the Rationale Supporting the Selection of a Dual ASTM Standard should be modified accordingly 16.3 New business 16.8.1 Mention was made of a publication by G. Sarkis and Ampian Asbestos Minerals and their Nonasbestos Analogs presented at the conference on Electron microscopy of microfibers at Penn State University 23-25 Aug 1976 16.8.2 The correct address of Mr. W.H. Ashton was . given as follows M.H. Ashton Director of Geotechnology Johnson & Johnson Research Division US Route 202 Raritan N.J. 08869 Tel 201-524-1475 16.9 Date and place of the next meeting 16.9.1 It was resolved to hold the next meeting of the Task Group with the main meeting of ASTM Committee 34 at the Sheraton Hotel in Philadelphia PA on 18 April 1977. It was agreed that endeavors would be made so that the Task Group could meet a half day prior to the subcom- mittee meetings 16.9.2 Editorial note on Monday 18 April 1977 from meeting on Tuesday 19 April It was 8:30 to subsequently decided to meet 12:00 a.m. in addition to ATTENDANCL ATTENDANCL Sixteenth meeting of the Fibers of ASTMA Committee 2 March 1977 Task Group on Naturally Occuring Inorganic & 34 at the JFK Airport in New York N.Y. W.H. Ashton M. Consette A.M. C.S. A.A. Harvey Thompson Winer -Johnson & Johnson Research University of Sherbrooke Recording Secretary R.T. Vanderbilt Co. Ltd. R.T. Vanderbilt Co. Ltd. CAMMET Ottawa Ont Chairman Dir ANNLX_2 AN LX_2 ACT Committee -34 Task Group on Naturally Occurring Inorganic Fibers AGENDA AGENDA 16th meeting 2 march 1977 JFK Airport New York N.Y. Chairman's opening remarks Minutes of he last meeting Business arising out of the minutes Letter ballot on exposure limits and adoption of the Standard on Occupational exposure to Asbestos 5 Regulatory situation in England 6 Centers for study of microscopic mineral particles 7 Old business New business 9. Date and place of the next meeting war 8 TheDaily Telegraph Thursday February 24 1977 TUC SAFETY L^ MIT FOR ASBESTOS TOO LOW SAYS UNION By JOHN DUNSFORD THETUC THETUC THETUC recommended asbestos safety limit is too low and could wipe out the industry and create havoc throughout the economy in sectors where asbestos products are used a union claimed yesterday - The Association of Professional Executive Clerical and Computer Staff APEX said the limit puts of jobs at thousands risk The union has decided to its advisory set up own com- mittee in opposition to the TU main recommenda- tions on asbestos- and if introduced would mean the end of the asbestos indus try said Mr Peter Goodwin APEX north west area organ- iser Some 20,000 jobs at all grades would be lost in the also accused the of It TUG submitting unrealistic and unnecessary unsubstantiateunsubstdantiated region alone Mr Keith Standring the union's national executive secre- recommendations ment to Govern- tary said APEX had disso- . cated itself from the TUC's urged The TUC has an eventual total ban on asbestos findings and has proposed a re- examination of methods used to products and as an immechate establish links between health in measure the introduction of a maximum allowable conceratra- tion of 02 fibres per millilitre hazards in the asbestos industry and to ensure its facts are indeed facts Ml of ziri claims The union the " higher but still safei level of two fibres higher down per millitre should be laid as the legal maximum in a - working environment Costs of 60 million 1 The 0-2 level would prob world's ably cost TBA Industrial ducts of Rochdale on of manufactures the biggest manufacturers of Asbestos more than 50 mil- in adapting liontion in existing produc methods impossible f'igure the union claims It is an unachievable vel Theu nion claims the TUC arrived at its findings by only studying reports about asbestos itself to establish or check facts The Health and Safety Commission's recent interim report -- -- health hazards and pre cautions involving asbestos had recommended 2 millilitres as the permitted maximum DOMPE tional exposure level to most asbestos dusts It recommends an exposure ceiling of only 0-2 millilitres blue asbestos or Crocidolite the import of which been banned has for DOW DEPARTMENT of the INTERIOR BUREAU OF MINES news release For Release November 15 1976 Alan Cole 202 634-1006 MINES BUREAU UNIT FOR STUDY OF MICROSCOPIC MINERAL PARTICLES ESTABLISHED AT COLLEGE PARK MARYLAND Studies of microscopic mineral particles using specialized scientific disciplines that can clearly identify such potentially harmful substances as asbestos and distinguish them from thousands of other mineral particles will be performed by a new research unit just established at the College Park Md Metallurgy Research Center of the Interior Department's Bureau of Mines Formation of the new group was announced today by Bureau of Mines Director Thomas V. Falkie He said the Bureau's recognized expertise in particulate mineralogy will be used to help clarify a situation with environmental and health implications that so far has been characterized more by confusion and ambiguity than by reason and fact The known environmental questionmark in particulate mineralogy is asbestos Dr. Falkie said The entire field has been riddled by ree the extreme lack of precision with which the term asbestos has been Ore used In many instances the Director said asbestos mineral par- ticles have been mistaken for microscopic fibers of related asbestos minerals The Bureau's new particulate mineralogy unit has been assigned to clear up such confusion wherever it can by replacing misinformation with fact Its job is to develop a solid scientific basis for research pollution into particle making by regulatory bodies problems and for the process of decision- Dr. Falkie said the particulate mineralogy unit besides helping in the Bureau's own minerals research will serve as a focal point for identification of particulates involved in regulatory and research activities of Federal State and local agencies Whenever technical information about the nature of asbestos and other mineral particulates is needed such agencies can consult directly with the College Park staff without going through the Bureau's main headquarters offices in Washington D.C. more MILLIPORE Recommended Practice ANNEX D Procedure for rendering Millipore mixed esters of cellulose and Celotate cellulose acetate membrane filters transparent 1. Scope This procedure provides a chemical clearing technique that yields a transparent membrane permanently affixed to a glass slide and because of the nature of the clearing procedure the contamination is also permanently affixed to the membrane resulting in a permanent sample Outline of Method Contaminants must be collected on a MF Millipore white or black plain or Celotate membrane disc where vacuum has been used to impinge the particles upon the surface of the filter The filter disc is rendered transparent by dissolution thus transmitted light microscopy the particles can be observed using Apparatus A Glass slides " x " for 37 and 47mm filters Millipore Catalog # XX10 076 15 B Filter forceps stainless smooth Millipore Catalog # XX62 000 06 C Eyedroppers with rubber bulbs D Watchglass diameter greater than 47mm E Glass Syringe 50-100ml F syringe Luer inlet 25mm Millipore Catalog # XX30 025 00 G Fluoropore membrane filters pore size 0.2...m 0.2...m Millipore Catalog # FGLP 025 00 II Large diameter petri dishes Reagents A Clearing Solution A 33mls Hexane Technical Grade 33mls 1 Dichloroethane Technical Grade 33mls 1 Dioxane Technical Grade B Clearing Solution B Acetone Technical Grade Filter Clearing Procedure A Filter clearing solution A using FGLP 0.2...m 0.2...m pore size filter into cleaned container B Using an eyedropper freshly rinsed with a filter solvent Freon is recommended dispense sufficient clearing Solution A to thoroughly wet a cleaned " x " microscope slide C Carefully roll the dry test filter particle side up onto the wetted glass slide Caution do not release membrane on this slide Immediately roll the wet filter onto a clean dry glass slide and cover the glass petri dish D After 30 seconds remove the glass petri dish and invert the sample over a watch glass half filled with acetone Allow the sample to become completely transparent 2 to 5 minutes exposure time to the acetone vapors E Remove the sample from the watch glass and place on level surface covering it with the petri dish F Allow the filter to dry 2 to 5 minutes at room temperature Filter is now ready for analysis ' a Noe weet ee sae . - ee coe a re -- I ./ ./ . . _ f wn act ~~ eee 7 n - ' woe - 1 a vs mee . . a ee co meee ee ey ee Mul oPO oa Oe le Se Peon SOLOS - nuvumbum Mae nuvumbum nuvumbum nuvumbum CON CON COON nes Or Rupidly Rupidly Rupidly Rupidly . Re NP ee ee 2076-2076-0 02-162-1 2076-062-16 2076-02-16 2076-02-16 2076-02-16 2076-02-16 that that clar clar oe wo Nea ee qu qu . ce 7 Attit Attituu de Attd itude e Attitude Attitude towards towards towards towards J ee Nw re fn ald NNee wee LN aa Qa ede oe H H RUNMAY RUNMAY RUNMAY RUNMARUNY MAY . tudes tudes tudes 1 1 QOrong QOrQoOngrong QOrong endnu endnu fH you you wallwall know know know cee ee ee debate debate debate debate debate probullu probul u probullu ches ches ches ches ty + Ul Te ~ > web oa ' - - Ube Clee + Vie MAMA tional tional tional tional regulation regulation regulation rane ce > ed in in Te ey states states states statests ates 1 ) 1 No emeplomyed pemplloyed oyemeplodyed Lae tion tion tion of of : C . C FUCK ee be be employed employed employed with with [ a eee CANO CANO CANO 1 10 0770 0 any any new new new - ~ a RP Le ote 3 3 Already Already Already Already Already Already Oven Oven Oven Oven after after after after ewe fa Choe. . ee June June June 2076 2076 2076 2076 J ions 4 Repuffed Repuffed Repuffed Repuffed Repuffed ioinonss ee of of AC nae . ... AC with Repuffed with 70 produto 70 - produto produto en en en may may only if ororiginaliorigginaliorniginal aoriginalloriginal original this in GRY FOR the continued use Ge eae * * hindra hindra hindra hindra hindra hindra products products products products may may be ae been said a has been been said re the - used used used until until until the the the end een nd d of of ee ; wwe i wee eee - ee Ouses Ouses Shoes Shoes ShoeSs hoes 201 201 201 201 ake - against file in file in . - ee i in n aga aigna stinags aint st file in . . . ) 4 WheWhen n When using using using peo peo8 . - eee points ppoionitsnts points points in Regan Re Regg an a en t ee cording cording cording 11/73 11/73 cording cording cording to to 3 3 cording apply apply apply apply the the the the relevant relevant relevant relevant relevant . uddition In uddition uddition uddition " - In uddition uddition Wace wee Sus aatse 411 411 Jain Jain Jain Jain AC prodlou prodlou ... -7 are any any any as > CEN eee e wee ee eee and and b and b Chrystile Chrystile Chrystile Chrystile shall shall shall not con- con- con- Products Record asbestos by ve GSAke. asbestos asbestos Record . ~ a- 37 ve 0 Products Products 0 Products Record ) asbestos by asbestos Locorban so bout veight Cew Shs ny bout bout Locorban ? - Locorban Locorban nr ode bout ae OO bout Orr eee au j - j RO30 acacccordio ng rding according according according of of a assbb esets os asbet stos os most most 12.50 12.50 12.50 12.50 by by 1.250 1.250 Amowite Amowite Amowite Amowite the the 4 / a SKANDINAVISKA ETERNIT AB IAICSC 2 . jm Lomma 1976-03-03 BL 4.2 Products according to to a or b have to be predrilled fit for direct nainalilinig ng nailing and if possible made to finished size so that further further preparations on site are unnecessary Products according to c shall be cut to size so that further adjustments can be avoided 4.3 The surface of the that they will not give dust products shall be treated so off any containing 4.4 If exceptionally any cutting drilling or similar adjustments have to be performed outside of the permanent working place the points 29-31 of the Regulations 52 apply By smaller adjustments cutting with ritz or handcutter may be done The employer has to consult the deliverer of products for suitable equipment for the work In point 5 it is indicated that in special circumstances even after June -76 or end of -77 products may be used for isolation against heat and fire on special per- mit from case to case of the Occupational Health Authorities This effectively puts an end to the era in Sweden It can also be mentioned that in another regulation still to appear from the printers it is ruled that as from 1976-07-01 the TLV is lowered to fiber In- formally it has been said that 0.5 is the ultimate goal wherever asbestos still is allowed to be used As you will notice the production of products is specially regulated only the use of these products Understand this if you can not For us is nothing much left than to close sales are already dropping sharply due to all the adverse 1 publicity in media in connection with the new regulations on products With best regards truly Yours Nils Pedersen . Encl , Translation , NEWS ABOUT WORK ENVIRONMENT . SWEDEN SWEDEN SWEDEN 111 7 Prohibition against work with asbestos cement products From July 1st 1976 employee shall not be occupied with new installation of asbestos cement products Already made installations may be kept in repair and be completed with such products if this is necessary for the use of the original installation In three cases asbestos cement products may be used until the end of 1977. This is for discs of asbestos cement for insulating against fire in buildings and for covering of roofs Moreover for pipes drains and district heating conduits One condition is however that the products as far as possible are prepared in advance in order to cut down the handlinagt the working aoe) .a places From July 1st 1976 the limit value for reduced by halves from 2 fibres per ml asbestos air to 1 is fibre The new regulations are written in the messages 1976 the use of asbestos cement products and 1976 the limit value for asbestos from the Board of Workers protection ee The use of asbestos cement products e In accordance with the directions No. 52 1975 e Asbestos item 1 of the Board of Workers Protection ee asbestos shall if possible not be used in the industry nme but be replaced with not dangerous or less dangerous ren product In accordance with asbestos content with the of which same item material the handling will give away dust with asbestos content shall also be replaced by less dangerous preferably by material free from ee asbestos if such material with acceptable is available qualities re In support of 74 the law of Workers Protection OR the Board inform the following complementary directions as a guidance for the application of the above law to the use of asbestos cement products in the industry I Re oe 1. Employee must not after the end of June 1976 be occupied at work with new installations of asbestos Sp cement products re 2. Already made installations of asbestos cement products may be kept in r ir and be completed with asbestos cement products a -r the end of June 1976 only if this is necessary e * the use of the original installation * from the directions in the 3. Without1 aannyd h2 inadbroavnece asbestos cement products may end of 1977 items be used in following cases until the Discs of asbestos cement fire in buildings for insulation against Discs of asbestos cement for covering of roofs cement for the use of water- or Pipes of asbestos conduits drain pipes or in district heating in accordance with item 3 At the use of products the asbestos directions No. 52 shall be observed In addition to this the following is vali^ 4.1 Asbestos cement product in accordance with A or B must not contain other asbestos than chrysotile allowed to contain Product in accordance with A is thereof max 1,25 max 9 weight procent asbestos amosit and the remaining chrysotile 4.2 with A or B shall be ready Product in accordance the like and to be nailed drilled in advance or if possible made in ready size so that further handling is avoided Product in accordance with C shall be cut in _ advance so that further handling is avoided 4.3 The surface of the products shall be that it does not give away dust with content treated so asbestos 4.4 If in exceptional cases sawing drilling or similar handling must be executed outthseidietemsspec2i9f-i3c1 working place with dust comsbhaatlilngbe observed At in the asbestos directions off or by works cutting by marking easy adjustment shall when needed scissors is allowed Employee for the ask supplier about suitable equipment work from the directions under 1 5. Without hindrance in a specific case the Factory Inspection can forth line in in support of item 19 second part admit that employee the asbestos directions No. 52 cement with installation of asbestos is occupied insulation against stron products for at first hand heat and fire Item 19 second directions No. 1976 part third line 52 is abolished in the asbestos from the 1st of . ; July : Stockholm February 26th 1976 The Board of Workers Protection me me ome bee - Cam ee Annex Asbestos and Health A A You have abotford oe owt TN QUESTIONS QUESTIONS QUESTIONS 1975. ANSWERED J.D. Christian ANSWEREDExtract ticle from No of 2 issue 1976 Northern mer 2 ye So otra ira, think rick of * ap the living in Toronto as compared to studios on the relationship of molity rates have been carried out in the Sy Ad befort absolutely denying any public health more data must be collected over an However booked booked booked out and there otherotohetr hoetrher, 448 , to to contacted contacted contacted any suggest that that suggest suggest suggest that from ata ata ata relarenlancecd ed relanced the enring enring or weathering of to date no evidence scientific or anyone In the general public has ever rosure to the minute amounts of community air through the use or finished asbestos products A far A far Agency Agency Agency for for of 192 192 192 - A c is is is concerned concerned concerned concerned purch purch purch on Cancer purch which which which I concernedconcerned concerned concerned Cancer Cancer should should ilable - ththee the the Conference Conference International Conference of the International International in Lyon France in the fall represent represent represent as qualified and authoritative provided the following information ipinntocr reased Question Question In tosee ence of an Tae fag, tls fi begs pintor pintor pintor used used used for the nation nation of drugs " increased risk hoveragen of cancer foods or resulting in fluids Auswert Auswert Auswert Auswert Since Since or there is does not indicate any risk You world You an eLtll, right acl ae et and ny "le tne this point If this is so then why the great cientific legal and bureaucratic world Adays yeoawe Pees who have ng to push the panic button and who ' detive detive a detive a tt hich posibly though may Strey Strey + ge Mar bara bara seye be ss Strey occur contentions var vidence to support their contentions ale Sew ale ee till problem bron hd till problem 993 Gey mony i or? : as cump eo r wne ~ aener aener aener aener tae , shoute Stee shoute Ses pmol, ert we ~ bron r 3 hich - may to . many many problems till are - problems even 1 problem arcas 993 Vis problems all 3 many of which must ! ue legislation ponie not neMEd wel Sp Corndtrics working hard to . ee fa toe rok a ae se ee ay tam at Te Cos . ots on tive es re tive tive . f a Corndtrics Corndtrics + ponie ponie " are legislation working is is hard UN oy Tho: Jafon : Jafon oyeo , m re e te any 1 e-t. * ab e ros , 7 +e, agent toy t Perey } Chee : t eu Se - aye kok Tw a An n 5 ~ on thought a Stes PTL not belable to create belable lable for for the health health 30 20 30 30 hazard or even rays the best that any orudent person can ote soy ne may ' Te sere . all apop tons . own own reduce of the problem and and and to not not the element problem to analyse analyse gola and of risk and pat loo rklios yor on cutirely FORM ACL From D. Dion ASBESTOS CORPORATION LIMITED OFFICE MEMORANDUM Annex Date April 29 1976 To Mr. W.R. Cooling Re Special Counting Please find counting of enclosed five 5 results samples of the special with ratio 1 request and 1 concerning the from 5 to 100u Samples were counted by four counters but counting the same field of view One hundred fields were counted for each sample The results were as follows Counter A B C D Sample 1 1 11 148 122 157 135 152 135 158 = 128 Sample 2 1 1 54 46 50 43 57 45 63 48 Sample 3 1 1 68 52 65 58 60 47 77 54 Sample 4 1 01 150 148 151 148 125 133 128 110 Sample 5 1 1 68 60 70 65 56 50 73 63 Grand Total Counter A C D 1 188 476 519 1 405 405 403 DS D. Dain Dain 10 Smert ANNEX 7 INTERPRETATION Make an appropriate use of should decision on which to use is to be and shall throughout the text The made by the writer of the document since pertinent technical knowledge is required Concerning appendixes Negatives concerning appendixes or which result in transfer to an appendix need not be balloted Negatives received by the Engineering Control Subcommittee From Mr. Lore regarding 5.3 non persuasive 5.3.2 non persuasive From Mr. Sarvadi regarding 5.5 non persuasive From Mr. Lore regarding 5.6 non persuasive From Mr. VanSchelt regarding 5.7 non persuasive From Mr. Moffitt regarding 5.7.4 non persuasive From Mr. Lore regarding ? non persuasive Objections withdrawn 5.3 5.3.7 5.5 and 5.6 from Mr. Sarvadi The rest of the objections were upheld : ene eth atd t me no me ere tem in placement intrappendiixntrappendix which need need be baloted . Denver Denver Denver Denver Aramian Aramian Aramian Aramian Aramian Aramian 15-16 15-16 Aramian Aramian 15-16 15-16 . Control 5.5 5.5 5.5 5 Bavende Bavende Bavende Bavende Love ; N.P N.P Suva 2 56 Suva withdra withdra withdra upheld upheld upheld \ Cer AT 137567 137567 ANNEX 8 INTERPRETATION To Asbestos Task Group from Test Methods Subcommittee Re Subcommittee negatives reviewed by Subcommittee E 34.5 on 3 May 1976 in St. Louis MO Mr. Flickinger A3.1.3 - A 1 ratio is used as a result of unpublished data obtained in a round robin counting sample The 1 ratio yielded essentially the same counts as the 1 ratio with questionable particles excluded A3.5.1.1 - The problem is one considered fibers by of terminology These substances the Asbestos Task Group are still A3.5.1.2 - Non persuasive Asbestos from brake linings etc. can be fibrils and in such a case they would still be counted A3.6.2.7 Referred to the Asbestos Task Group This may be left as it is or it may be taken out This phraseology is used by OSHA in its method A3.6.3.1 Same as above Recommend change Mr. Hecker Negative withdrawn with an editorial explanation This midget impinger was used because extensive background data was obtained by reasons for means of this instrument Therefore referring to this method even though there are historical the referee method is based upon the membrane filter that Mr. Sarvadi 7.1.1 Editorial 8 Non persuasive Al.2.1 Editorial A4 Referred to the Asbestos Task Group with no comment necessary Deemed not ) Asbestos Fask force Test Methods ANNEX8* Sub ANNEX8 AN EX8 Reviewed by 34.5 May 31976 St Louis lickinger : 51 rustic obtained essentially the sasammpele count Problem are 43.5.1.1 43.5.1.1 considered still is in terminology these substances are fibers by these Asbestos 73.5.1.2 73.5.1.2 73.5.1.2 3.4.2.7 - counted brake linings etc etc persuasive asbestos from etc can be fibrils and will - refered asbestos task force may be phrase used by OSHA mentor . 3.6 3.1 same above - Reco change historically even background membrane membranme embrane membrane accepted accepted method is 7.11 - editorial Sect 8 non persuasive 1.2.1 - editorial A - referedFirmark Firmark to " asb task f dade force with no comment