Document G5wqDRabKZGqEN48kqjbjVgkv

MARINE DIVISION ASBESTOS INTERROGATORIES TX TINER RMC0024195 Thirty-five Year Index 6. Use of the light field optical counting method should be restricted to evaluating mineral dusts for which suitable chemical methods of analysis are not available. 7. More accurate physiological information concerning the effect of concentration, particle size, surface area and solubility is needed to expedite the development of new evaluation procedures. 8. Methods now available for estimating the silica content ofairborne dust sampleswill be inadequate when more precise total dust*evaluation methods are developed. 9. Methods used by industrial hygienists for evaluating particle distribution are for the most part obsolete. Techniques developed for use in other fields of study should be applied to this industrial hygiene problem. Committee members: Dr. H. H. Schrenk, Chairman Dr. J. Shilen Mr. L F. Garber Mr. C E. Couchman Mr. F.R. Ingram 1950 Report ofthe committee on threshold limits* DR. L.T. FAIRHALL (U.S. Public Health Service): The Committee on Threshold Limits has this year proposed a few changes in the values from those previously reported and has made a few sugges tions which 1 take pleasure in reporting. It is suggested that more attempt should be made on the part of those reporting original work to define safe working conditions, that is, permis sible concentration values to which workers may be exposed. All too frequently original work on the toxicity of a given substance fails to take into account die possible need for such data and It requires much study to arrive at any conclusion regarding its usefulness for inclusion in a table of threshold limit concentrations. At the present time there is a great deal of interest in a number of organic insecticides, some of which are very poisonous indeed. It is also a matter of increasing interest to the industrial hygienist and is being brought to his attention by fatal and near-fatal cases in industry as well as in the application ofthese materials, it is in question how far we feel we should enter into this field and whether we should consider the matter of thresh old limits for such insecticides. Also, it is compli cated by the fact skin absorption occurs in many cases as well as injury from inhalation. The changes in the Table which the Committee recommends for the present year are as follows: 1. Gamma radiation should be placed at 0.3 roentgen perweek in place of0.1 roentgen per day. 2. X-ray radiation should be placed at 0.3 roentgen per week in place of0.1 roentgen per day. 3. o-Dinitro cresol should be added to the table with a value of 0.2 milligram per cubic meterof air. 4. n-Butanol should be changed from 50 parts per million to 100 parts per million. 5. It is also suggested that the hygienic signif icance of tripoli should be reviewed for future inclusion in the Table. In connection with its review of the threshold limitvalues hitherto reported, the Committee has undertaken the special task ofbringing the signif icant information (concerning these substances) together in permanent form. "Documentation," 1 believe is the term in current parlance. This enormous task could not ofcourse, be completed in one year. However, twenty-five substances have been reviewed, and the references together with the abstracted material have been compiled. It is to be hoped that future committees will continue this work, as this will eventually constitute a val uable set of reference material for the individual members of the Conference. Published in Transactions ofthe Twelfth Annual Meeting of the American Conference of Governmental Industrial Hygienists. April 22-25,1950. Chicago, IL pp. 33-34. TX TINER RMC0024202 Ann. Am Thirty-five Years of TLVs Threshold Limit Values Adopted at the April 1950 meetingofthe American Conference ofGovernmental Industrial Hygienists in Chicago. Reprinted from the Archives of Indus trial Hygiene and Occupational Medicine 2:98-100 (July 1950). Gases and Vapors Substance P.P.M. Acetaldehyde ................................................. 20 Acetic add ................... 10 Acetic anhydride ........................................... 5 Acetone......................................................... 500 Acrolein......................................................... 0.5 Acrylonitrile .................................................. 20 Ammonia ...................................................... 100 Amyl acetate ................................................. 200 Isoamyl alcohol............................................. 100 Aniline ......................................................... 5 Arsine ........................................................... 0.05 Benzine (benzol)........................................... 35 Bromine ........................................... 1 1,3-Butadiene ............................................... 1000 n'Butanol ............................ 100 2'Butanone .................................................. 250 n-Butyl acetate.................................... 200 Butyl celiosolve* (2-Butoxyethanol) .... -- 200 Carbon dioxide ........ 5000 Carbon disulfide.......................................... 20 Carbon monoxide ........................................ 100 Carbon tetrachloride .................................... 50 Gellosotve (2*Cthoxycthanol>..................... 200 Cellosolve* acetate...................................... 100 Chlorine ....................................................... l Chlorobenzene ............................................. 75 2-Chlorobutadiene........................................ 25 Chloroform.................................................... 100 l-Chloro-l-nltropropane............................... 20 Cyclohexane.......... ...................................... 400 Cytiohexanol ................................................ 100 Cyclohexanone ............................................. 100 Cyclohexene.................................................. 400 Cyclopropane (propene)............................... 400 o*D!chlorobenzene........................................ 50 Dichlorodifluoromehtane.............................. 1000 1.1- Dichloroethane ..................................... 100 1.2- DichIoroethane (ethylene dlchloride) -- 75 1.2*DIchloroethylene ..................................... 200 Dlchloroethyl ether ...................................... 15 Dlchloromethane .......................................... 500 Dlchloromonofluoromethane ....................... 1000 1.1- DIchloro-l-nltioethane........................... 10 1.2- Dlchloropropane (propylene dichloride). 75 Dlchlorotetrafluoroethane ............................ 1000 Dlmethylanillne............................................. 5 Dlmethylsulfate............................................. 1 Dioxane......................................................... 100 ragX2 Substance P.P.M. Ethyl acetate ................................................. 400 Ethyl alcohol ................................................. 1000 Ethyl benzene ............................................... 200 Ethyl bromide ............................................... 200 Ethyl chloride.................... 1000 Ethylene chiorohydrin ................................... 5 Ethylene oxide............................................... 100 Ethyl ether .................................................... 400 Ethyl formate ................................................. 100 Ethyl silicate.................................................. 100 Fluorotrichloromethane ............................... 1000 Formaldehyde ............................................... 5 Gasoline ........................................................ 500 Heptane ........................................................ 500 Hexane ......................................................... 500 Hydrogen chloride ........................................ 5 Hydrogen cyanide.......................................... 10 Hydrogen fluoride......................................... 3 Hydrogen selenide ............................................. 0.05 Hydrogen sulfide............................................ 20 Iodine ....................................... 1 Isophorone ................................................... 25 Mesityl oxide ...................... 50 Methanol........................................................ 200 Methyl acetate ............................................... 200 Methyl bromide....... ..................................... 20 Methyl butanone............................................ 100 Methyl cetlosolve* (2-methoxyethanol)....... 25 Methyl cel!osoive acetate .......................... 25 Methyl chloride ............................................. 100 Methylcydohexane ........................................ 500 Methylcydohexanol ...................................... 100 Methylcydohexanone ................................... 100 Methyl formate ............................................. 100 Methyl Iso-butyl ketone................................. 100 flaphtha (coal tar).......................................... 200 naphtha (petroleum).................................... 500 nickel carbonyl ............................. ............... 1 nitrobenzene................................................. l Hitroethane .......... 100 nitrogen oxides (other than N*0) ................. 25 nitroglycerin................... ............................. 0.5 riitromethane ............................................... 100 2-HItropropane ............................................. 50 Mltrotoluene.................................................. 5 Octane........................................................... 500 Ozone ........................................................... 1 Pentane......................................................... 1000 Pentanone (methyl propanone) ................... 200 Phosgene ..................................................... 1 Phosphine .................................................... 0.05 Phosphorus trichloride................................. 0.5 Iso-propyl alcohol......................................... 400 Propyl acetate ....................................... 200 Iso-propyl ether............................................. 500 SHblne.......................................................... 0.1 Stoddard solvent .......................................... 500 Styrene monomer ........................................ 200 Sulfur chloride ............................. 1 Sulfur dioxide ................... 10 TX TINER RMC0024203 Ann. Am. Conf inn #** n/ Thirty-five Year Index Substance P.P.M. 1.1.2.2-TetrachIoroethane ................................. Tetrachloroethylene.......................................... Toluene............................................................. Toiuidine ........................................................... Trichloroethylene ............................................. Turpentine ....................................................... Vinyl chloride .................................................... Xylene ,............................................................ 5 100 200 5 100 100 500 200 Toxic Dusts, fumes and Mists Substance Mg. Per Cu. M. Antimony ........................................................... Arsenic .............................................................. Barium .............................................................. Cadmium ........................................................... Chlorodiphenyi .................................................. Chromic acid and chromates, as CrOj .............. Cyanide, as CM.................................................... Dinitrotoluene............................................... o-Dinitrocresol ............................................. Fluoride......................................................... Iron oxide fume ................................................ Lead.......................... '.................................. Magnesium oxide fume................................. Manganese .....'................................................. Mercury........................................................... Pentachloronaphthaiene .............................. Pentachlorophenof........................................ Phosphorus (yellow)...................................... Phosphorus pentachloride................................. Phosphorus pentasulflde ................................... Selenium, as Se ........................................... Sulfuric add........................................... .... Tellurium ........................................................... Tetryl .................................................................. Trichloronaphthalene ........................................ Trinitrotoluene .................................................. Zinc oxide fume ................................................ 0.5 0-5 0.5 0.1 1 0.1 5 1.5 0.2 2^ 15 0.15 15 6 0.1 0.5 0-5 0.1 1 1 0.1 1 0.1 1.5 5 1.5 15 Mineral Dusts Substance M.P.P.C.F. Alundum............................................................ Asbestos ............................................................. Carborundum ................................................... Oust (nuisance, no free silica)........................... Mica (beiow 5% free silica)................................ Portland cement................................................ Talc ................................................................... Silica high (above 50% free SIOz) ............................ medium (5 to 50% free SlOj) ........................ low (below 5% free SiO)................................ Slate (below 5% free SiOi) ................................ Soapstone (below 5% free SIOi)........................ Total dust (below 5% free SlOa) ........................ 50 5 50 50 50 50 20 5 20 50 50 20 50 Substance M.P.P.C.f. Radiations MateriaLor Radiation Gamma (roentgens per week)...................... Radon (curies per cubic meter) ................... Thoron (curies per cubic meter)................... Roentgen ray (roentgens per week) .............. 0.3 10"* 10'* 0-5 Committee members: LT. fairhail. Chairman Dr. Joseph Shilen Mr. L F. Qarber Mr. C E. Couchman Mr. F. R Ingram 1951 Report ofthe committee on threshold limits* DR. W.G. FREDRICK, Chairman (Detroit City De partment ofHealth): Your Committee has received scantycorrespondence from the membership this year. Indicating, perhaps, reasonable satisfaction with values established to date. Information available at the present time re mains inadequate for establishment of limits for insecticides in air. A real need has developed for a threshold limit value for noise or sound and it is believed that a value can be established soon. Similarly, it now appears that sufficient data have been accumu lated to permit setting up limit values for radio active isotopes, beryllium and uranium. It is re commended that the chairman ofthis committee appoint sub-committees of spedai experience and qualifications to assist In this work. The changes in the Table which the Committee '"recommends for the present year are as follows: * Published in 7Vansactfons ofthe ThirteenthAnnual Meet ing ofthe American Conference ofGovernmental indus trial hygienists. April 21-25,1951 Atlantic City, MJ, pp. 27-28. TX TINER RMC0024204 Ann. Am. Coni /nd tty$. \foL 9U9S4) r*g*35J Thirty-five Years of TLVs 1. The value for Mica dust shall be 20 M.P.F.Cf. 2. The value for Radium 226 in air shall be 8 X 10"* micro curies per cubic meter. 3. The value for Polonium 210 in air shall be 1 X 10 micro curies per cubic meter. Committee members: W. Q. Fredrick. Chairman K. E. Charron K. E. Markuson Arthur Vorwald 1952 changes from 1951 The following new threshold limit values are recommended for addition to the 1951 list (W). CresoJ.................................................. 5 ppm Df-ethyl amine.......................................... 25 ppm Ethyl amine ....................... ...................... 25 ppm Methylal ...................................................... 1000 Phenol "Values are given In the following tables for the maximum average atmospheric concen tration of contaminants to which workers may be exposed for an eight-hour working day without Injury to health. "These values are based on the best avail able Information from Industrial experience, from experimental studies and, when pos sible, from the combination of both. They are not fixed values, but are reviewed annually by the Committee on Threshold Limits for changes, reutslons or additions as further Information becomes available. Threshold limits should be used as guides In the control of health hazards and should not be regarded as fine lines between safe and dangerous concentrations. They represent conditions only within which It is felt that workers may be repeatedly exposed, day after day, without adversely affecting their health. It Is felt at the present time, that workers should not be exposed to a working environment contain ing any of these substances In excess of the value Indicated Deletions Radon (curies per cubic meter).......................... Thoron (curies per cubic meter) ........................ Radium 226 (microcuries per cubic meter) ............................................................ Polonium 210 (microcuries per cubic meter) ............................................................ Committee members; Allan L. Coleman, Chairman D. H. Byers L T. Fairhall Kingsley Kay Arthur J. Vorwald L F. Weller IQ"4 10* 10* 10* New Values 1.2- Dlbromoethane (ethylene dibromide) -- 25 ppm fluorine (gas) -- 0.1 ppm 1,1,1-Trichloroethane (methyl chloroform) -- 500 ppm Ob-Diethyi-0-p-nitrophenyi thiophosphate (parathion) -- 0.1 ppm Uranium (soluble compounds) -- 0.05 mg/m3 Uranium (insoluble compounds) -- 0.25 mg/m3 Reolsed Values Acetone --1000 ppm Carbon tetrachloride -- 25 ppm 1.2- Dichloroethane (ethylene dichloride) -- 100 ppm Tetrachloroethylene -- 200 ppm Trichloroethylene -- 200 ppm 1953 changes from 1952 The following is die first proposed preface for the MAC values. Committee members: Allan L. Coleman, Chairman William L Ball LT. Fairhall Kingsley Kay H. E. Stokinger A J. Vorwald Louis F. Weller TX TINER RMC00 2 420 5 fge 554 Am An. Conf. Ind Hy$. YoL 9(19941 Thirty-five Year Index 1954 changes from 1953 Revised Values nickel carbonyl -- 0.001 ppm nitrogen oxides (other than fyO) -- 25 ppm Change to: nitrogen dioxide -- 5 ppm Ozone -- 0.1 ppm Change in listing n-Butanol -- 100 ppm TO: n-Butyl alcohol -- 100 ppm Methyl butapone TO: Hexanone (methyl butyl ketone) -- 100 ppm Portland cement TO: Cement Selenium, as Se TO: Selenium compounds, as Se -- 0.1 mg/m5 Deletions Dfchloromethane -- 500 ppm Radiations and radioactive substances Excerpt from the 1954 committee report* In view of several inquiries received during the year, on the subject of air pollution, your Commit tee considers it desirable to add the following statement to the section introducing the list of threshold limit values published annually. "These values are not Intended for use, or for modification for use, in the evaluation or control of community air pollution or air pollution nuisances." In addition to the recommended changes men tioned above, your Committee suggests the adop tion of a new procedure in the compilation of the table ofthreshold limit values. The established list would be continued In its present form, but would be supplemented by a second list known as "Tentative Threshold LimitValues" because of the tesser certainty associated with the values as signed. The adoption of this tentative list is sug gested for the following reasons 1. It is felt that a need exists for such a list 2. Tentative values based on even limited in formation are felt to provide at least gen era! guidance in the control of exposure. 3. Long intervals often elapse between the developmentofthe firstexperimental data and its practical industrial experience from which many values have been assigned in the past 4. The tentative list would serve as a clearing house until such time as the values were more definitely established. It is suggested that all new values be placed on this tentatvie list before their appearance on the list of values approved by the Conference. The following is a list of 37 material and tenta tive values presented by your committee for further study and consideration. Substance Ally! alcohol .................................................. Ally! propyl disulfide...................................... Benzyl chloride ............................................. Diacetone alcohol (4-Hydroxy-4*methyl pentanone-2)............................................. Dl Isobutyi ketone ........................................ Furfural ......................................................... Mercaptans Methyl mercaptan...................................... Ethyl mercaptan ........................................ Butyl mercaptan ........................................ Perchlormethyl mercaptan........................ Methyl isobutyl carbinol {methyl amyl alcohol) ...................................................... p-flitroanillne ................................................ (ppm) 5 2 1 50 50 5 50 250 10 0.1 25 1 Pesticides (mg/m3) Organic Phosphates Paratbfon (O.O-dlethyl O-p-njtrophenyl thlophosphate....................................... TEPP (tetraethyl pyrophosphate) .............. TEDP (tetraethyl dithiono pyrophosphate). EPM (ethyt-p-nitrophenyi thlono benzene phosphonate ......................................... Malathion (O.O-dlmethyl dlthio phosphate of dimethyl mercaptosuccinate ............ Chlorinated Hydrocarbons Undane (hexachlorocydohexane)............ DDT (l.l-dichloro-2,2-bls (p-chlorophenyl) ethylene ................................................ Chlordane-(4,7-methano-3a,4,7.7a- tetrahydro-45.6.7,8,8-hexachtorindene) . Aldrin (1,25.4.10.10-hexachloro1.4.4a5/8.8a-hexahydro-1.455dimethanonaphthalene)........................ 0.1 0.05 0.2 0.5 15 05 1 2 0.25 * Pull text published in the Transactions of Sixteenth Annual Meeting, April 24-27.1954. Chicago, IL pp. 22-24. il li iI 5! V l* i TX TINER RMC0024206 Ann. Am. Cent Ind ffyg- VoL 9(1984) rase 135 Thirty-five Years of TLVs Pesticides (mg/m3) Dleldrin (1.2.3.4.10.10-hexachioro-6.7, epoxy-1,4.4a.5.6.7,8.8a-octahydro-1.4,5,8dlmethanonaphthalene)......................... Methoxychlor (2.2.dlparamethoxyphenyl* 1,1,1-trichloroethane) ............................ Inorganic Compounds Calcium arsenate ....................................... Lead arsenate ............................................ Organo mercurials (as mercury)................ 0.25 15 0.3 0.2 0.01 Organic tlerbtcldes 2.4,0 (2,4-dichIorophenoxyacetic acid)___ Ammate (ammonium amidosulfate)......... Crag Herbicide (sodium* 2.4,dichlorophenoxy ethyl sulfate) ......... 10 15 15 Phenylhydrazine (ppm).................................. 5 Picric add (mg/nr)........................................ 10 Pyridine (ppm)............................................... 10 Sodium hydroxide (mg/m3)........................... 2 Sulfur hexafluoride (ppm) ............................. 1000 Sulfur pentafluoride (ppm) ........................... 0.025 Titanium dioxide (mg/m3) ............................ 15 Vanadium (mg/m3) (VjOi dust) ................................................. 0.5 (Volume)............................................................ 0.1 Ferro vanadium dust .................................. 1 Reference material has been prepared on each of the above substances and. though in some instances rather meager, is available from the chairman for distribution. The Committee would welcome suggestions of substances to be added and also comments, additional references or experience with these materials. Committee members: Same as 1953. 1955 changes from 1954 HewValues None. Revised Values None. Committee members: Same as 1953. fage A56 1956 changes from 1955 Threshold Limit Values adopted at the Eighteenth Annual Meeting of the American Conference of Governmental Industrial Hygienists, April 21-24, 1956. Philadelphia, PA. Hew Values Gases and Vapors ppm Allyl alcohol ................................ Allyl propyl disulfide .................. Benzyl chloride........................... Butylamine................................. Chlorine Trifluoride.................... Diacetone alcohol (4-hydroxy4*methy1-2-pentanone)............ Dlborane ................................... Difluoro dlbromomethane......... Diisobutyl ketone....................... Ethylenediamine ....................... Ethylene imine ........................... Hydrazine................................... Hydrogen bromide..................... Hydrogen peroxide. 90% ........... isopropylamine ......................... Methyl acetylene......................... Methyl Isobutyl carbinoi (methyl amyl alcohol) .............. p-Nltroaniline ............................ Phenylhydrazine......................... Propylene imine......................... Pyridine...................................... Sulfur hexafluoride ................... Sulfur pentafluoride .................. p-Terdary butyitoiuene .............. Tetranitromethane ................... Trifluoromonobromo methane . 5 2 l 5 0.1 50 0.1 100 50 10 5 l 5 l 5 1000 25. 1 5 25 10 1000 0.025 10 1 1000 Toxic Dusts. Fumes and Mists Aidrin (1.2.3.4.10,10-hexachloro1.4.4a.5.8,8a-hexahydro1.4,5.8-dimethanonaphthalene................... Ammate (ammonium sulfamate) .................. Cadmium oxide fume ........................ 4........ Chlordane (1.2.43x6,7,8,6 octachioro* 3a.4.7,7a-tetrahydro'4,7-methaniondane ... Chlorinated diphenyl oxide .......................... Crag herbicide (sodium 2-(2.4-dichloro- phenoxy) ethanol hydrogen sulfate ............ 2.4*D(2.4-dichlorophenoxyacetic add) ......... Dfeidrin (1,2.3,4.10,10-hexachlo^o-6,7* epoxy-1.4,4a,S.6,7,8,8a-octahydro- 1,4,5.8'dlmethano-napthalene)................... EPN (o-ethyi o-p-nitrophenyi thionobenzene phosphorate) ............................................. FetTovandium ........................... mg/m3 12 12 5 15 0.4 240 0.1 860 290 30 9 1.3 17 1.4 12 1650 100 6 22 60 30 6000 0.25 60 8 6100 mg/m3 0.25 15 0.1 2.0 0.5 15 10 0.25 0.5 1 TX TINER RMC0024207 Anit.Am.Conf. tod YoL 9(1984) Thirty-five Year Index Toxic Dusts, Fumes and Mists mg/m3 Hydroquinone ............................................... Undane (hexachlorocydohexane. gamma Isomer) .......................................... Malathlon (O.Odlmethyl dithiophosphate of dlmcthylmercapto succinate) ..................... Mercury (organic compounds) ..................... Methoxychlor (2.2-di*p-methoxy*pheny1- 1,1.1-trichlorethane ..................... .............. Molybdenum (soluble compounds).............. Picric acfd ...................................................... Sodium hydroxide ........................................ TEDP (tetraethyl dithionopyro-phosphate) ... TEPP (tetraethyl pyrophosphate) ................. Titanium dioxide .................................... -.. Vanadium (VjOs dust) ................................................. (VjOs fume)................................................. Zirconium compounds (as Zr) ..................... 2 0.5 15 0.01 15 5 0.1 2 0.05 0.05 15 0.5 0.1 5 Revised Values Iodine changed from 1 ppm to 0.1 ppm Deletions Cadlmum (0.1 mg/m3) EDITOR'S NOTE: In 1956 the value "approximate milligram per cubic meter" appeared for the first time. Committee members: Allan L. Coleman, Chairman William L Ball L. T. Falrhail H. E. Stokinger Ralph S. Smith W. H. Reinhart S. D. Silver A. J. Vorwald 1957 changes from 1956 ThresholdLimit Values adoptedat thenineteenth Annual Meeting of the American Conference of Governmental Industrial Hygienists, April 20-23. 1957, SL Louis., MO. Hew Values Gases and Vapors Ally! chloride .............................. ppm mg/m3 5 15 Gases and Vapors ppm Chloropicrin . ............................ Decaborane............................... Ethylacrylate ............................. Furfural...................................... Methyl acrylate .......................... nitric acid.................................. Tetrahydrofuran.......................... Toxic Dusts, Fumes, and Mists 1 0.05 25 5 10 5 200 AMTU (aipha-naphthyl-thiourea) .................... Calcium arsenate .......................................... Chlorinated camphene, 60%......................... Chlorodlphenyl (54% chlorine)..................... DDT (2,2-bls (p-chlorophenyl)-l.l.ltrfchforoethane) .......................................... Dinitrobenzene ............................................. Ferban (ferric dimethyl dithlocarbamate) ... HETP (hexaethyl tetraphosphate).................. Lead arsenate ............................................... nicotine......................................................... Pyrethrum...................................................... Rotenone ...................................................... Sodium fluoroacetate (1080) ....................... Strychnine ............................. Thiram (tetramethyl thioram disulfide) ....... Warfarin (3-{o-acetonyl benzyi)-4- hydroxycoumarin) ..................................... Revised Values Substance ppm Benzene ..................... TO .......................... Butyl cellosolve.......... TO ......................... Ethylene dioxide......... TO .......................... Lead and inorganic compounds............ ___from TO .......................... Styrene monomer (Phenyiethyiene) -- TO .......................... Sulfur dioxide ............ TO .......................... Thallium (soluble comps) ................... .... from TO .......................... 35 25 200 SO 100 50 -- -- 200 100 10 5 -- -- Deletions Acrylonitrile (20 ppm and 45 mg/mJ) Dieldrin (0.25 mg/mJ) Slate (below 5% free SlOj) (SO mppcf) Total dust (below 5% free SiOj) (50 mppcf) Committee members: Allan L Coleman, Chairman William L Ball W. Clarke Cooper mg/m3 7 0-3 100 20 35 25 590 mg/m3 0.3 0.1 0.5 0.5 1 1 15 0.1 0.15 0-5 2 5 0.1 0.15 5 0.5 mg/m3 110 80 970 240 180 90 0.15 0.2 850 420 25 13 0.15 0.1 TX TINER RMC0024208 Ann. Am. Conf. Ind Hy. VoL 9 (1984) fagS57 Thirty-five Years of TLVs L. T. Fairhall W. H- Reinhart S. D. Silver Ralph S. Smith H. E. Stokinger 1958 changes from 1957 Threshold Limit Values adopted atthe Twentieth Annual Meeting of the American Conference of Gouemmentaf Industrial hygienists, April 19-22. 1958. Atlantic City, HJ. hew Values Gases and Vapors Hone. Reuised Values Substance Mesityl oxide ......... TO ...................... Mltrlc add.............. TO ...................... Deletion METP (hexaethyl tetraphosphate) ppm 50 25 5 K) mg/m3 200 100 25 25 Committee members: AJlan L. Coleman, Chairman William L. Ball W. Clarke Cooper Hervey B. Elkins Keith H. Jacobson Warren H. Reinhart Herbert E. Stokinger 1959 changes from 1958 Threshold Limit Values adopted at the TwentyFirstAnnualMeeting oftheAmerican Conference ofGovernmental Industrial Hygienists. April 1821.1959. Chicago, /L. rage 338 hew Values Gas and Vapors Acetylene tetrabromide .. Beryllium ........................ Methyl styrene................. Monomethyl aniline......... Paradichlorobenzene ___ Propylene oxide .............. Tertiary butyl alcohol ___ Toluene-2-4-diisocyanate . Triethylamine ................. Vinyl toluene ................... Xylidine............................ Revised Values Substance Bromine .......................... . from TO ............................... Chloroform ..................... . from TO ............................... Chioropicrin ................... TO ............................... Deletions Hexone (methyl isobutyl ketone) Committee members: Same as 1958. ppm 1 -- 100 2 75 100 100 0.1 25 100 5 mg/m3 14 20 480 9 450 240 300 0.7 100 480 25 ppm l 0.1 100 50 1 0.1 mg/m3 7 0.7 490 240 7 0.7 I960 changes from 1959 Threshold Limit Values adopted at the Twentysecond annual Meeting of the American Con ference of Governmental Industrial Hygienists. April 25-26.1960, Rochester. HY. Hew Values Gases and Vapors ppm mg/m3 Boron Trifluoride ...................... Chlorine dioxide............... Dimethyl formami<j................. 1,1-DImethylhydrazine .............. Dipropylene glycol methyl ether . Furfural alcohot ........................ Methyal (dlmethoxymethane) ... Lithium hydride ........................ Phosphoric add ........................ Yttrium ...................................... 1 0.1 20 0-5 100 5 1000 -- -- -- 3 0.3 60 l 600 20 3100 0.025 1.0 5.0 Mineral and Mon-Metallic Inorganic Dusts mppcf GystaboIHe (above 5% silica)....................... Amorphous silica ................... ..................... 5 20 TX TINER RMC0024209 AM. Am. Coni ladling. VoL 9(19841 SEP 1 3 19S0 IN THE UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF TEXAS HOUSTON DIVISION M.A.D. 100 MASTER ASBESTOS FILE PLAINTIFFS * INTERROGATORIES TO DEFENDANTS TO: ALL DEFENDANTS and their attorneys of record The plaintiffs hereby make request in accordance with Rule 13, Federal Rules of Civil Procedure that the defendants answer each and all of the attached interrogatories within thirty (30) days, after the service of a copy hereof upon you. You are fur ther notified that these interrogatories are continuing requir ing supplemental answers as required by Rule 33. TX TINER RMC0024210 INTERROGATORY NO. 1. As to the person answering these interrogatories, stare: (a) Name. . (b) Title or position with defendant. (c) Business address. (d) Residence address. (e) Length of time employed by defendant. ANSWER: TX TINER RMC0024211 INTERROGATORY NO. 2. State the following concerning this defendant: (a) Full and correct name. (b) Principal place of business. (c) State of incorporation. (d) Date of incorporation and name of corporation. (e) Is this defendant authorized to transact business the State of Texas? If so, state the date such authority was first issued and last renewed. (f) Does this defendant have an agent, representative or place of business in Texas? If so, state the name and address of such agent, representative, or place of business. (g) Does this defendant have an agent for service in the State of Texas? If so, state the name and address of the registered agent. ANSWER: TX TINER RMC0024212 INTERROGATORY NO, 3. Has this defendant been sued under its correct name? If not, state the correct legal name of the defendant and pro vide the information requested in No. 2 above concerning the defendant as correctly named. * ANSWER: TX TINER RMC0024213 INTERROGATORY NO. 4. As to any product containing asbestos in any form. has this defendant: (a) Ever designed such a product? Cb) Manufactured such a product? (c) Processed such a product? (d) Sold such a product? (e> Distributed such a product? (f ) Patented such a product? (g) Relabeled such a product which was manufactured, sold, or distributed by another company? ANSWER: INTERROGATORY NO. S. If your answer to No. 4d. and 4e. is "yes," then give the trade name of the product, the year the defendant first sold or distributed such product, and the year the defen dant last sold or distributed such product. ANSWER: TX TINER RMC0024214 INTERROGATORY NO. 6. In what year did the defendant first begin selling or distributing insulation products containing asbestos? ANSWER: * 9 INTERROGATORY NO. 7. In what year did the defendant last sell the insulation product which contained asbestos? ANSWER: INTERROGATORY NO. 8, For each asbestos containing insulation product manufactured or sold by you, please give the asbestos content by weight and by volume. ANSWER> TX TINER RMC0024215 INTERROGATORY NO. 9Has this defendant ever acquired another corporation, company, or business which manufactured, sold, processed, distributed or contracted to apply insulation prodi*?ts containing asbestos? ANSWER: mX TlNER INTERROGATORY NO. 10- If the answer to Interrogatory No. 9 is "yes," then state the following concerning such predecessor: (a) Full and correct name. * (b) The principal place of business. (c) State of incorporation. (d) Date of acquisition by defendant. (e) Was this business authorized to transact business in the State of Texas? (f) Attach copies of all papers pertaining to the acquisi tion. ANSWER: TX T1NER RMC0024217 INTERROGATORY NO. 11 If your answer to No. 9 is "yes", then give the trade name of the product, the year such predecessor first sold or distributed such product, and the year sucb predecessor last sold or distributed such product. ANSWER: tiner RMC0024218 INTERROGATORY NO. 12. In what year did the predecessor or acquired business begin selling or distributing insulation products contain ing asbestos? ANSWER: INTERROGATORY NO- 13. In what year did the predecessor or acquired business last sell insulation products containing asbestos? ANSWER: TX TINER RMC0024219 INTERROGATORY NO. 14. As to the named defendant or any predecessor or acquired business, state the various types of products such as blocks, pipe covering, cements, tape, spray-on insulation nasties, and cloth, and in connection with each type of product, state how the same was packaged (i.e., bags, boxes, sacks, etc.) for sale. ANSWER: TX TINER RMC0024220 INTERROGATORY NO. 15. Have you since 1950 .had designated distributors of your products in the State of Texas? ANSWER: INTERROGATORY NO, 16. If your answer to Interrogatory No. 15 is "yes", then state the name of all companies, their addresses, and give the years that each was a designated distributor. ANSWER: tiner KMC0024221 INTERROGATORY NO. 17. If you did not have designated distributors in the State of Texas, then state by what method sales were promoted, encouraged or consummated, and give the name and addresses of all sales offices located in the State of Texas> ANSWER: TX TINER RMC0024222 INTERROGATORY NO- IB. Describe the purpose or purposes for which each of the products were designed, said type of products being as follows: (a) Pipe covering. (bi Blocks. (c) Asbestos cloth. (d) Mastics. (e) Spray-on insulation. (f) Rope or tape. (g) Asbestos sheeting or millboard. ANSWER: TX TINER RMC0024223 INTERROGATORY NO. 19. Did each of your insulation products or materials generally reach, or were packaged to reach, the consumer, insulation helper, insulation mechanic, or ultimate user, without sub stantial change in the condition in which it was sofcd? ANSWER: INTERROGATORY NO. 20. Do you admit that asbestos insulation applicators, helpers or mechanics, were foreseeable users of defendant's asbestoscontained insulation products? ANSWER: TX TINER RMC0024224 INTERROGATORY NO. 21. Based upon the material contents of your products, the method of manufacturing, and the method of application for the purpose of insulation, can your products be generally applied by an insulator without creating dust? ANSWER: TX TINER RMC0024225 INTERROGATORY NO. 22. Please desribe in detail each test that you performed on your asbestos containing insulation products to determine whether persons applying the products would be exposed to bodily injury or disease as a result of applying those products. In connection with this interrogatory, include in your answer the date the test was made, the circumstances under which the test was made, the results of the test, and the name and address of the person or persons who have cus tody of the documentary evidence supporting 'the tests. ANSWER: TX TINER RMC0024226 INTERROGATORY NO. 23: Did your company, or any predecessor, ever at any time give insulation contractors, insulation helpers, or insulation mechanics who would be using or applying*your products instructions concerning safety precautions to use in applying such procedure? If so, describe such instruc tions, to whom they were given, the dates they were given, and the manner of giving such instructions. ANSWERS: TX TINER RMC0024227 INTERROGATORY NO- 24l Did your company or your predecessor ever require your employees at the mines, mills, factories, or plants to wear respirators? If your answer is "yes," then st*te the first year that respirators were required. ANSWER: ,<s'7 ' '' INTERROGATORY NO. 25. Prior to your company or its predecessor, requiring your employees at mines, mills, factories, or plants to wear respirators, did you require of such employee a physical examination to determine whether the wearing of a respira tor would endanger such employee's health? ANSWER: - TX TINER RMC0024228 INTERROGATORY NO. 26 . Was your company aware that in 1971-1972, in Washington, D. C. an advisory committee on the asbestos standard was set up by the- United States Secretary of Labor, Jams Hodgson, which committee recommended to the Secretary of Labor that before respirators could be issued to workers for any reason, each worker must have a complete physical examination to determine whether such worker could wear a respirator without endangering his health? ANSWER: /4 INTERROGATORY NO. 27. Did your company or your predecessor ever place any warning signs on the containers in which asbestos insulaiton products were packaged? ANSWER:. TX TXNER RMC0024229 INTERROGATORY NO. 28- If you have answered Interrogatory No. 27 in the affirmative, please state: (a) On what date did your company or your predecessor, issue an order directing a warning be placed on your insulation products or containers? (b) On what date was such warning actually first placed on your insulation products or containers? (c) State the exact size of the warning printed on your asbestos products or containers. (d) Did your company or its predecessor, place such warning on your asbestos insulation products or containers? (e) ANSWER: Please attach to your answers to these interrogatories true and correct copies of any photographs you may have showing the placement of such warning on the boxes containing your products. TX TINER RMC0024230 INTERROGATORY NO. 29. Did your company or its predecessor, ever place any warning on any of/it asbestos insulation pipe covering, blocks, cloth or mi'llboard? ANSWER; INTERROGATORY NO- 30, If your answer to Interrogatory No. 29 is "yes," then state the date and type of product on which said warning was stamped or printed. ANSWER: TX TINER RMC0024231 INTERROGATORY NO. 31. Did you company ever stamp the name of its company, its initials or any identifying logo on any of its asbestos pipe covering, blocks, cloth or millboard? ANSWER: INTERROGATORY NO. 32. Did the warning inquired about in Interrogatories No. 27 and 29, or a similar warning, ever appear in any of your sales literature? If so, attach copies or such sales literature, showing the date such literature was printed. ANSWER: TX TINER RMC0024232 INTERROGATORY NO. 33. On what date was the sales literature inquired about in Interrogatory No. 32 first provided to distributors or sellers of your company's products, or your predecessor's products? * ANSWER; INTERROGATORY NO. 34. Has your company or its predecessor ever devised a high temperature heat insulation which does not contain asbestos? If so, state the date that such insulation was first placed on the market. ANSWER: TX TINER RMC0024233 INTERROGATORY NO. 35. If your company or its predecessor ever devised a high temperature heat insulation which does not contain asbestos, state what prompted your company to devise such higlt tempera ture heat insulation not containing asbestos. ANSWER: INTERROGATORY NO. 36. Has such high temperature heat insulation not containing asbestos performed satisfactorily? that is, is such insula tion suitable for the purpose for which it is to be used? ANSWER: TX TINER RMC0024234 INTERROGATORY NO- 37. Give the trade name of your high temperature heat insula tion products which do not contain asbestos, and state fullyJ what such insulation contains. ANSWER: INTERROGATORY NO. 38. Does your company have now, or has it ever had, a division or subsidiary company engaged in the contracting business of applying asbestos containing insulation products? If so, give the name of such division or subsidiary company, full address of the home office of such division or subsidiary company, and the date or dates such company or subsidiary was engaged in the contracting business. ANSWER: T*X TINER RMC0024235 INTERROGATORY NO. 39. Please state whether or not any division of your company or subsidiary company engaged in the contract business of applying insulation products, had any claims for lung diseases or death from lung disease attributable to asbestosis, mesothelioma or lung cancer. If the answer is "yes," give the names of such employees and attach copies of such claims. ANSWER: TX TINER RMC0024236 INTERROGATORY NO. 40, Has your company or its predecessor ever conducted or caused to be conducted, any studies designed to minimize eliminate the inhalation of asbestos dust and fibers by those exposed to the use of your company's insulation products? If so, give the following: (a) Name of the person or firm conducting such studies. (b) The date the studies began and the date completed. (c) Any publication or dissemination of the results of the studies. (d) The nature of any action to eliminate or minimize the inhalation of asbestos dust or fibers. ANSWER: TX TINER RMC0024237 / INTERROGATORY NO. 41. State the year that this defendant or any predecessor was first advised of either threshold limit value or maximum allowable concentrations of both asbestos dust and #otal dust by the American Conference of Governmental Industrial Hygienists, and state the name of the employee-official of the company .receiving--s^ich advice and attach copies of the instrument communicating ' such advice. ANSWER: V **'-X*J Was such threshold limit values or maximum allowable concen trations inquired about in Interrogatory No. 41 total dust and not just asbestos dust? TX TINER RMCQO24238 INTERROGATORY NO. 43. State whether or not the American Conference of Governmental Industrial Hygienists is or is not an agency or department of the United States Government. ANSWER: INTERROGATORY NO. 44. Has your company or its predecessor ever advised any contractor to whom you sell your products containing asbestos of threshold limit values for exposure to asbestos dust recommended by the American Conference of Governmental Industrial Hygienists? If so, state the date or dates that you so advised such contractors, the manner in which you advised such contractor, and the name of each contractor. ANSWER: aIc TX TINER RMC0024239 INTERROGATORY NO. 45. Before releasing the products previously listed in these interrogatories to the public, were any tests conducted on them to determine potential health hazards involved in the use of materials contained in those products? * ANSWER: INTERROGATORY NO. 46. If the answer to Interrogatory No. 45 is affirmative, state: (a) The names of the products tested and date. (b) The name, address and job title of each person who conducted those tests. (c) The results of those tests and date. ANSWER: TX TINER RMC0024240 INTERROGATORY NO. 47. Do any documents, including written memoranda, specifica tions, recommendations, blueprints, or other written materials of any kind or character relating to the testing of the named products now exist? ANSWER: INTERROGATORY NO. 48, If the answer to Interrogatory No. 47 is affirmative: (a) List each document and date. (b) State the name, address, and job title of each person who currently has possession of each document and where it is presently located. ANSWER: TX TINER RMC0024241 INTERROGATORY NO. 49- Did the defendant or its predecessor, or any of its subsidiary companies make any design changes as a result of those tests? ANSWER: * INTERROGATORY NO. 50. If the answer to Interrogatory No. 49 is affirmative, state: (a) The trade names of the products changed. (b) The nature of the changes made. (c) The name, address, and job title of each person responsi ble for having made a change. ANSWER: TX TINER RMCQ024242 INTERROGATORY NO. 51. Please state the amount of asbestos fibers that are required to be in the body to produce the following diseases: (a) Plural asbestosis. * (b) Parenchymal asbestosis. (c) Lung cancer. (d) Mesothelioma. ANSWER: TX TINER RMC0024243 INTERROGATORY NO 52, Please state in detail the evidence you intend to offer at the time of trial to show, or prove, that the plaintiff in this case was actually aware of the following dangers from exposure to asbestos. * (a) Plural asbestosis. (b) Parenchymal asbestosis. (c) Lung Cancer. (d) Mesothelioma. ANSWER: TX TINER RMC0024244 INTERROGATORY NO- 53. Has defendant, or its predecessor, or any of its subsidiary companies at any time been members of any "trade organization" or "association" comprised of other manufacturers, iwiners, marketers, and/or sellers of asbestos products? ANSWER: INTERROGATORY NO. 54. If the answer to Interrogatory No. 53 is affirm ative, state: (a) The name and address of each of those associations or organizations. (b) The dates during which defendant or its predecessor or any of its subsidiary companies were members. (c) The names of any publications published by or written by any of the named associations or organizations. ANSWER: TX TINER RMC0024245 / 1 \l INTERROGATORY NO. S5. Have any written materials of any kind or character been prepared by defendant or its predecessor or any of its subsidiary companies or their agents indicating how.asbestos products should be used and maintained? Please attach to your answers to these interrogatories true and correct copies of such literature. ANSWER: INTERROGATORY NO. 56. Does defendant have insurance policies that might cover the claims made by plaintiff in this case? ANSWER: TX TINER RMC0024246 INTERROGATORY NO, 57. If the answer to Interrogatory No. 56 is affirmative, list the name of each insurance carrier, the amount of coverage, and the effective dates of each policy. ANSWER: TX TINER RMC0024247 INTERROGATORY NO. 58. Describe in detail the type of packages in which defendant or its predecessor# or any of its subsidiary companies, sold asbestos material, listing the dates each type of package was used, a physical description of each type of package, and a description of any printed material or trademarks that appeared on it. Please attach to your answers to these interrogatories true and correct copies of photographs of the packages in which your products were packed. ANSWER: TX TINER RMC0024248 INTERROGATORY HO. 59. Does defendant admit that it or its predecessor or any of its subsidiaries sold asbestos insulation materials in the State of Texas at any time? * ANSWER: INTERROGATORY NO. 60. If your answer to No. 59 is affirmative, list the dates during which the product was sold. ANSWER: TX TINER RMC0024249 INTERROGATORY NO. 61. State the name of each and every witness, including experts, whom you intend to call to testify during the trial of this cause and indicate as to what they are expected to testify. If any of your expert witnesses whom you expect to testify at trial of this cause have furnished you with any sort of written reports, memoranda or any other written information, please identify such writings by attaching a true copy to yours answers hereto. ANSWER: TX TINER RMC0024250 INTERROGATORY NO. 62. Name by date and source as to when your company, or its predecessor, first suspected there was a health hazard to human beings from exposure to, or breathing of, asbestos dust, fibers* or particles. ANSWER: e TX TINER RMC0024251 INTERROGATORY NO. 63 Please list and identify in detail each and every document, report, research study, survey, article or journal, both medical and technical, which this defendant will use, or anticipates using, at the time of trial. ANSWER: TX TINER RMC0024252