Document r62poE4vDM8LYVpGQr58Qjn9q

. CtiOw icAc PLAINTIFF'S EXHIBIT f|3 >V bird 012666 OCCUPATIONAL SAFETY AND HEALTH 1910-Subpart Z STANDARDS AND INTERPRETATIONS PART 1910 OCCUPATIONAL SAFETY AND HEALTH STANDARDS SUBPART Z--TOXIC AND HAZARDOUS SUBSTANCES 1910.1000 Air Contaminants-' 1910.1001 Asbestos. 1910.1002 Coal tar pitch volatiles; interpretation of term. 1910.1003 4-Nitrobiphenyl. 1910.1004 alpha-jtfaphthylamine. 1910.1005 4,4'-Methylene bis (2-chloroaniline). 1910.1006 Methyl chloromethyl ether. 1910.1007 3,3'-Dichlorobenzidine (and its salts). 1910.1008 bis-Chloromethyl ether. 1910.1009 beta-Naphthylamine. 1910.1010 Benzidine. 1910.1011 4-Aminodiphenyi. 1910.1012 Ethyleneimine. 1910.1013 beta-Propiolactone. 1910.1014 2-AcetylaminofIuorene. 1910.1015 4-DimethyIaminoazobenzene. 1910.1016 N-Nitrosodimethylamine. 1910.1017 Vinyl Chloride. 1910.1018 Inorganic arsenic 1910.1028 Benzene. 1910.1029 Coke Oven Emissions I 1910.1043 Cotton dust. 1910.1044 1,2 - dibromo - 3 - chloropropane. I 1910.1046 Exposure to cotton dust in cotton gins. Change 5 695 1910-Subpart Z 1910.1000 STANDARDS AND INTERPRETATIONS OCCUPATIONAL SAFETY AND HEALTH SUBPART Z--TOXIC AND HAZARDOUS SUBSTANCES /'"'N 1910.1000--AIR CONTAMINANTS An employee's exposure to any material listed in table Z-l, Z-2, or Z-3 of this section shall be limited in accordance with the requirements of the following paragraphs of this section. (a) Table Z-l s (1) Materials with names preceded by "C"-- ceiling values. An employee's exposure to any material in table Z-l, the name of which is pre ceded by a "C" (e.g., C- Boron triflouride), shall at no time exceed the ceiling value given for that material in the table. (2) Other materials--8-hour time weighted av erages. An employee's exposure to any material in table Z-l, the name of which is not preceded by "C", in any 8-hour work shift of a 40-hour work week, shall not exceed the 8-hour time weighted average given for that material in the table. Table Z-l Substance p.p.m. mg./M* * Acetaldehyde.............................. 200 Acetic acid................................... 10 Acetic anhydride........................ 5 Acetone........................................ 1,000 Acetonitrile................................. 40 Aeetvlene dlchioride, see I. 2- Diehlorocthylene...................... Acetylene tetrabromide............. 1 Acrolein....................................... 0.1 Acrvlumide--Skin................... AeryIon i trile--Skin..................... 20 Aldrin--Skin................................ Aliyl alcohol--Skin..................... Ailyl chloride........,......... 2i "O Allvleiycidyl ether (AGE). 10 Ailyl propyl disulfide................. 2 2-An)itioethnnol. see Ethanol- ,in!iiu>....................................................... 2-Amtnopyririine........................ 0.5 "Ammonia................................... 50 Ammonium sulfamatc (Am- mate)....................................................... n-Amyi acetate........................... 100 sec-Amyl acetate........................ 125 Aniline--Skin............................. 5 Anisidine (o. p-isomers)--Skin.................. Antimony and compounds (as Sh)...................................................... ANTC (alpha naphthyl thiourea).................................................. See footnotes at end of table. 360 25 20 2,400 70 14 0.25 0.3 45 0.25 5 3 45 12 2 35 15 525 650 10 0.5 0.5 0.3 Table Z-l--Continued Substance p.p.m.* mg./M3 4 Arsine........................................... 0.05 0.2 Azinphos-methyl--Skin................................. 0.2 Barium (soluble compounds)........................ 0.5 p-Benzoquinone. see Quinone.......................................... Benzoyl peroxide............................................. 5 BcnzyI chloride........................... I 5 Biphenyl, see Diphenyl.................................................... Bisphenol A, see Diglycidyl ether.... ....................................................................... Boron oxide............................ ."........................ C Boron trifluoride..................... 1 IS 3 Bromine...................................... BromoPorm--Skin....................... 0.1 0.5 0.7 5 Butadiene (1. 3-hutadiene)........ 1,000 2,200 Butanethiol. see Butyl mer captan..... ................................... 2-Butanone.................................. 200 590 2-Butoxy ethanol (Butyl Ceiiosolve)--Skin.......................... Btitvl acetate (n-hutyl acetate). 50 150 240 710 sec-Butyl acetate........................ tert-Butyl acetate...................... Butyl alcohol.............................. sec-Butyl alcohol......................... 200 200 100 150 950 950 300 450 tert-Butyl alcohol....................... C Butylamine--Skin.................. 100 5 300 15 C tert-Butyl chromate (as CrOjl--Skin.............................. n-Butyi glycidyl ether (BGE).. 50 0.1 270 Butyl mercaptan...................... 10 35 p-tert-Butyitoluene..................... 10 60 Calcium oxide........................... "Camphor............................... Carbary! (Sevin)................... Carbon black............................ Carbon dioxide.................. -- Carbon monoxide............. ........ Chlordane--Skin...................... Chlorinated camphene--Skin.. Chlorinated diphenyl oxide-- Chlorine................................... Chlorine dioxide....................... C Chlorine trifluoride............... C Chloroacetaldchyde.............. a-Chloroacotophonone (phenacyich loride)................ Chlorobenzene (monochloro- henzene)................................. 0-Chlorohenzylidene maiononitrile (OCBM)......... Chiorobromomethane............... 2-Cldoro-l.3-butadiene, see Chloroprene........................... Chlorodiphenyi (42 percent Chlorine)--Skin..................... Chlorodiphenyi (54 percent Chlorine)--Skin..................... 1-Chloro.2.3-epoxy propane, see Epichlorhydrin............. ........ 2 5,000 50 l 0.1 0.1 1 0.05 75 0.05 200 5 5 3.5 9,000 55 0.5 0.5 0.5 3 0.3 0.4 3 0.3 350 0.4 1,050 1 0.5 1910.1000(a)(2) 696 Change 1 i w f Il f ii r t * rivf. i f * ^! J BIRD 012668 OCCUPATIONAL SAFETY AND HEALTH 1910.1000(a)(2) STANDARDS AND INTERPRETATIONS Table Z-I--Continued_________ Substance____________p.p.m. mg./M3 h 2-Chloroethanol, see Ethylene chlorohydrin................ -....... Chloroethylene, see Vinyl chloride.......................... ......... t/ C Chloroform.(trichloromethane)'...I..".----------------i. 1-Chloro-l-nitropropane............. Chloropicrin................................ Chloroprcnc (2-chloro-l,3- butadicnc)--Skin.................... 50 20 0.1 25 Chromium, sol. chromic, chromous salts as Cr........... Metal and insol. salts............... Coal tar pitch volatiles (ben zene soluble fraction) anthra cene, BaP. phenanthrene. acridine, chrysene, pyrene___ Cobalt, metal fume and dust... Copper fume............................. Dusts and Mists...................... Cotton dust (raw)..*.................. Crap herbicide......................... Cresol (all isomers)--Skin.......... Crotonaldehjrric........................... 5 2 Cumene--Skin............................ 50 Cyanide (as CN)--Skin........... Cyclohexane.............................. Cyclohexanoi.......................... . Cyclohexanone............. .............. Cyclohexene................................ Cvciopentadiene.................. ...... 300 50 50 300 75 2.4-D...................................... DDT--Skin................................. DDVP, see Dichlorvos............... Decahorane--Skin--......... ...... 0.05 Demeton- Skin....................... Diacetone alcohol (4-hydroxy- 4-methyl-2-pentanone)............ 50 1.2-diaminoetliane, see Ethylenediamine..................... Diazomethane.............................. 0.2 Diborane...................................... Dibutylphthaiate........................ C o-Dichlorobenzene................. 0.1 50 p-Dichlorobenzene--................ 75 Dichlorodifluoromethane........... 1,000 1.3- D ichloro-5,5-dim ethyl hydantoln................................. 1.1-Dichloroethane...................... 100 1.2-D ichioroethylene.................. 200 C Dichloroethyl ether--Skin-- 15 Dichloromethane. see Methylenechloride.i................ Dichloroinonoffuoromethane__ 1,000 C t,l-Dich!oro-l-nitroethane___ 1.2-Dichloropropane. see 10 Propylenedicliloride.............. . Diciilorotctradunroethanp.......... 1,000 Dlciiiorvos (DDVP)--Skin------- Dieidrm--Skin.................... ....... Diethylamine.............................. IMethyiamino ethanol--Skin__ Dlotiiylethcr, see Ethyl ether. .. Difluorodihromometbane--------- 25 10 100 C Diglycidyl ether (DGE)........ 0..5 Dihydroxybenzene, see Hydroquinone______________ DUsobutyl ketone...................... 50 240 J 100 0.7 90 0.5 1 0.2 0.1 0.1 1 1 15 22 6 245 5 1,050 200 200 1,015 200 10 1 0.3 0.1 240 0.4 0.1 5 300 450 4,950 0.2 400 790 90 4,200 60 7,000 1 0.25 75 50 860 2.8 290 See footnotes at end of table. Table Z-l--Continued_______ Substance____________p.p.m.* mg./M> Diisopropylainine--Skin.......... Dlmethoxymethane, see Metbylai --............................. Dimethyl acetamide--Skin-----Dimethylamine....................... . Dimothylaminobenzene, see > Xyiidene............................ ---DimetliylanilinefN-dimethyl* aniline)--Skin.......................... Dimethylbenzcne, sec Xylene.. Dimethyl l,2-dibromo-2,2-dichloroethyl phosphate, (Dibrom).................................. Dimethylformamide--Skin....... 2,6-Dimethy!heptanonc, sec Diisobutyl ketone..................... 1.1-Diniethylhydrazine--Skin-- Dimetbylphthalate..... ............... . Dtinethylsuifate--Skin............... Dinitrobenzene (all isomers)-- Skin............................................ D ini tro-o-cresol--Skin--------------Dinitrotoluene--Skin................. Dioxano (Diethylcne dioxide)-- Skin........................................... Diphenyl...................................... Diphenylmethane diisocyanate (see Methylene bisphenyl isocyanate (MDI)...................... Dipropylene glycol methyl ether--Skin............................... Di-sec. octyl phthalate (Di-2- cthylhexylphthalate)................ Endrtn--Skin............................... Epichlorhydrin--Skin............ - ETN'-Skin................................... 1.2-Epoxypropane, see Propyletieoxide............ ............ 2.3-Epoxv-l-propanol, see Glyctdol-.................................. 5 20 10 35 10 18 5 25 ........... 10 3 30 0.5 l ...........................5 15 .......................... I ............. 0.2 ............. 1.5 100 0.2 360 1 100 ............ ............ 5 ............. 600 5 0.1 10 0.5 Ethanethlol, see Ethylmer- captan................................ ........ Ethanolamitie.............................. 3 2-Ethoxyethanoi--Skin.............. 200 2-Ethoxyethylacetnte (Cello- solve acetate)--Skin 100 Ethyl acetate........................... . 400 Ethyl acrylate--Skin................. 25 Ethyl alcohol (ethanol)---- ------ 1,000 Ethylamlne............................... 10 Ethyl sec-amyl ketone (5- methyl-3-heptanone).............. 25 Ethyl benzene............................. 100 Ethyl bromide............................ 200 Ethyl butyl ketone (3- Ileptanone)............................ 50 Ethyl chloride........................... - 1,000 Ethyl ether.................................. 400 Ethyl formate.............................. 100 C Ethyl mercaptan----------------- 10 Ethyl silicate..................... ....... 100 Ethylene chlorohydrin--Skin.. 5 Ethylenediamine........................ 10 Ethylene dibromide, sec 1,2- Dibromaethnne--................... . Ethylene dichloride, see 1,2- Dichloroethane..................... C Ethyleneglycol dinitrate and/or Nitroglycerin--Skin... <*0.2 6 740 540 1.400 100 1,900 18 130 435 890 230 2,600 1,200 300 25 850 16 25 1 See footnotes at end of table. Change 5 697 1910.1000(a)(2) 1i 1 1 ; i * : *t * i I BIRD 012669 1910.1000(a)(2) OCCUPATIONAL SAFETY AND HEALTH STANDARDS AND INTERPRETATIONS Table Z-I--Continued Table Z-l--Continued Substance p.p.m.* mg./M * Substance p.p.m.* mg./M* > Ethylene glycol monomethyl ether acetate, see Methyl cellosolve acetate. Ethylene imine--Skin....... ...... . 0.5 Ethylene oxide............................ 50 Ethylldlne chloride, see 1,1- Dfchloroethane........................ N-E thylmorphollne--Skin------ 20 Ferbam........................................ Ferrovonadium dust Fluoride (as F) Fluorine.......... 0.1 1,000 Formic acid.......................... 5 Furfural--Skin...................... . 5 Furfuryl alcohol..................... 50 Glycidol (2.3-Epoxy-l- propanol).............................. 50 Glycol monoethyl ether, see 2-EthoxyethanoI................. . Guthion , see Azinphos- methyl--.............................. Hafnium................................. Heptachlor--Skin...... ............ Heptane (n-heptane)..............- 500 Hesachloroethane--Skin-------- *l Hexachloronaph thalene--Skin Hexane (n-hexane) ................ 500 2-Hexanone.............................. 100 Hexone (Methyl isobutyl m ketone).................................. 100 sec-Hexyl acetate..................... 50 Hydrazine--Skin..................... 1 Hydrogen bromide.... ............. 3 C Hydrogen chloride.............. 5 Hydrogen cyanide--Skin....... 10 Hydrogen peroxide (90%)----- 1 Hydrogen selonide..... ............. 0.05 Hydroquinone.......... ............... C Iodine................................... 0.1 Iron oxide fume.......... ................................ Isoamyl acetate........................... 100 Isoamyl alcohol........................... 100 Isobutyl acetate......... ................ 150 Isobutyl alcohol......................... 100 Isophorone............................. 25 Isopropyl acetate....................... 250 Isopropyl alcohol........... ............ 400 Isopropylamlne_______________ 5 Isopropylether................ 500 Isopropyl glycldyl ether (IGE). 50 RTetene............................ -........... 0.5 Lindane--Skin....... 1".'...:.......... Lithium hydride........................ L.P.G. (liquified petroleum gas)............................................ Magnesium oxide fume............... Maiathlon--Skin........................ Maleic anhydride........................ C Manganese............................ Mesityl oxide............................... Mcthnnethiol, see Methyl mercaptan............. .................. Methoxychlor........ ..................... 2-Methoxvethanol, see .Methyl cellosolve....... ..................... Methyl acetate........ ........... ........ Methyl acetylene (propyne)___ Methyl acetylene-propadiene mixture (MAPP)..................... See footnotes at end of table. 1,000 0.25 25 200 1,000 1,000 l 90 94 15 1 2.5 0.2 5,600 9 20 200 150 0.5 0.5 2,000 100. 1,800 410 410 3001. 10 7 u 1.4 0.2 2 1 10 525 360 700 300 140 950 980 12 2,100 240 0.9 0.5 0.025 1,800 15 15 1 5 100 15 610 1,650 1,800 Methyl acrylate--Skin............. Methyls! (dlmethorymethane).. 1,000 35 3,100 Methyl alcohol (methanol)......... 200 260 Methylamine................................ 10 12 Methyl amyl alcohol, see Methyl Isobutyl carblnol...... ..................................... Methyl (n-amyl) ketone (2Ileptanone)............. ................ C Methyl bromide--Skin........... 100 20 465 80 Methyl butyl ketone, see 2- Hexanone................. ............... Methyl cellosolve--Skin............. Methyl cellosolve acetate--Skin u Methyl chloroform____________ Methylcyclohexane Methylcyclohexanol.................... 0-Methylcyclohexanone--Skin.. 25 25 350 500 100 100 80 120 1,900 ' 2,000 470 460 Methyl ethyl ketone (MEK), see 2-Butanone..................... . Methyl formate----------------------Methyl Iodide--Skin................... Methyl isobutyl carblnol--Skin. 100 5 25 250 28 100 Methyl isobutyl ketone, see Hexone________ _____ ___ ____ -........... . Methyl isocyanate--Skin--------- 0.02 C Methyl mercaptan--................ 10 Methyl methacrylate................ 100 0.05 20 410 Methyl propyl ketone, see 2- Pentanone_____ ______________ ______ --C oe Methyl styrene..................... 100 480 C Methylene blsphenyl Isocyanate (MDI),__________ 0.02 0.2 Molybdenum: Soluble compounds....... .............................. Insoluble compounds.................................. Monomethyl aniline--Skin____ 2 5 15 9 C Monomethyl hydrazine-- Skin........................................... Morpholine--Skin______ ________ Naphtha (coaltar)....................... Naphthalene______ __________ Nickel carbonyl........................... 0.2 20 100 10 0.001 0.35 70 400 50 0.007 Nickel, metal and soluble cmpds, as Nl.......... .............. -................... Nicotine--Skin......................... Nitric add___________ ____ _ 2 l 0.5 5 Nitric oxide...... ............. ......... p-Nitroanlllne--Skin ............... 25 1 30 6 Nitrobenzene--Skin...... .......... p-Nltrochlorobenzene--Skin.. 1 5 1 Nitroethane................ ............. Nitrogen dioxide........ ............. Nitrogen trifluoride................. 100 5 10 310 9 29 Nitroglycerin--Skin...... .......... Nltromethane______________ 1-NItropropane......................... 0.2 100 25 2 250 90 2-Nitropropane................... . Nitrotoluene--Skin................ 25 5 90 30 Nitrotrichloromcthanc, sco Chioroplcrin.......................... Octaehloronaphthalcne--Skin o.i Octane..................................... 500 2,350 Oil mist, mineral.................. *5 Organic Arsenic compounds (as As) Osmium tctroxide........................................... Oxalic acid...................... .............. ............. . Oxygen difluoride_____________ 0.05 0.5 I 0.002 1 0.1 Ozone................. ........................ 0.1 Paraquat--Skin........................................ ...... 0.2 0.5 Paratblon--Skin---------------------------- --------- 0.1 1 Pentaborane.................... ......... 0.005 0.01 1910.1000(a)(2) 698 Change 4 MA1 BIRD 012670 OCCUPATIONAL SAFETY AND HEALTH 1910.1000(a)(2) STANDARDS AND INTERPRETATIONS Table 25-1--Continued Substance___________ p.p.m. mg./M Pentachloronaphthalene--Skin.. Pentachlorophenoi--Skin--------- Pentane........... ........................... 2-Pentanone................................. 1,000 ZOO Perchloromethyl mercaptan----- 0.1 Perchloryl fluoride.................... 3 Petroleum distillates (naphtha). 500 Phenol--Skin............................... 5 p-Phenylene diamine--Skin------ Phenyl ether (vapor).................. 1 Phenyl ether-biphenyl mixture (vapor)....................... 1 Phenylethylene. see Styrene...... Phenyl glycidyl ether (PGE)... 10 Phenylhydrazine-- Skin 5 0.5 0.5 2,950 700 0.8 13.5 2,000 19 0.1 7 7 60 22 Phosdrin (Mevinphos )-- Skin............................................ Phosgene (carbonyl chloride)... Phosphine.................................... Phosphoric acid_______________ Phosphorus (yellow)................. Phosphorus pentachlortde........... Phosphorus pentasulfide--......... Phosphorus trichloride............... Phthalic anhydride.................... Picric acid--Skin........... .............. ........... 0.1 0. 3 ____ .......... .......... ........... 0.5 2 ........... 0. X 0.4 0. 4 1 0.1 1' 1 3 12 0.1 Pival (2-Pivalyl-l,3- indandione)............................... ........... 0.1 Platinum (Soluble Saits) as ............ 0.002 Propargyl alcohol--Skin......... 1 ................... Propane------ ----------------------- 1,000 1,800 n-Propyl acetate...................... 200 840 Propyl alcohol.......................... 200 500 n-Propyl nitrate....................... 25 110 Propylene dichloride........ ....... 75 350 Propylene imine--Skin........... 2 5 Propylene oxide....................... 100 240 Propyne, see Methylacetylene. Pyretnrum............................... _________ 5 Pyridine................................... 5 15 Quinane.................................... . 0.1 0.4 RDX-Skin.............................. 1.5 Rhodium, Metal fume and dusts, as Rh_______________ Soluble salts............ -............ Ronnel...................................... Rotenone (commercial)--....... Selenium compounds (as Se)... Selenium hexafluoride............ Silver, metal and soluble com ................ 0.1 ................ 0.001 ............. 10 ..............................5 ................ 0.2 a 05 0.4 pounds.................................... ................ Sodium fluoroacetate (1080)-- 0.01 Skin........ ............................... Sodium hydroxide................. . Stiblne....................................... ................ ............. 0. 1 0.05 2 0.5 Stoddard solvent..................... Strychnine........... .................... Sulfur dioxide............................ Sulfur hexafluoride................... 600 ................ 5 1,000 2,950 0.15 13 6,000 Sulfuric acid............................. ............... 1 Sulfur monochloride................. Sulfur pentafluorlde................. Sulfnryl fluoride........................ 1 0.025 5 6 0.25 20 Systox, sec Demcton ............ 2.4.5T......................................... Tantalum.................................. 10 5 TEDP-Skin............................ Tellurium.................................. 0.2 0.1 See footnotes at end of table. Table Z-l--Continued Substance _________ p.p.m.* Tellurium hexafluoride.............. 0.02 TEPP--Skin................................................ . C Terphenyls.............................. 1 1.1.1.2-Tetrachloro-2.2-dlfluoro- ethane........................................ 500 1.1.2.2-Tetrachloro-l,2-difluoro- ethane....................................... 500 1.1.2.2-Tetiachloroethane--Skin 5 Tetrachloroethylene, see Per ch ioroethylene............................................. Tetrnchloromethane, see Carbon tetrachloride............................... Tetrachloronaphthalene--Skin.. Tetraethyl lead (as Pb)--Skin... Tetrahydrofuran............... ........ 200 Tetramethyl lead (as Pb)-- Skin........................................................... Tetramethyl succinonitrilc-- Skin............................. ............. 0.5 Tetranitromethane....... ............. 1 Tetryl (2.4.fetrmitrophen>M- methylnitramine)--Skin........................ . Thallium (soluble com pounds)--Skin as T1..........-............. ...... Thiram......................................................... Tin (inorganic cmpds, except oxides.......................... ....................... ....... Tin (organic cmpds)........................... ......... C To!uene-2,4-diisocyanate........ 0.02 o-Toluidine--Skin....................... 5 Toxaphcne. see Chlorinated camphene.................................................. . Tributyl phosphate...................................... / 1.1.1-Trichlorofiihane see Methyl chloroform.................................... 1,1,2-Trichloroethane--Skin___ 10 Titaniumdioxide............. ............................ . Trichloromethane, see Chloro form........................................ Trichloronaphthalene--Skin__ 1,2,3-Trichloropropane................ 50 1,1,2-Trichloro 1,2,2-trlfluoro- ethane....................................... 1,000 Triethylamino............................. 25 Trifluoromouobromomethane... 1,000 2.4.6-Trinitrophenol, see Picric acid............................... .......................... 2.4.6-Trinitrophenyimethyl- nitramine, see Tetryl..................... ....... Trinitrotoluene--Skin___ .'........................ Trforthocrcsyi phosphate.......................... Triphenyl phosphate................................ Turpentino.................................. 100 Uranium (soluble compounds)............. Uranium (insoluble compounds)_______ C Vanadium: VjOs dust........ ....................................... VjOs fume............ .............................. Vinyl licnzono, see Styrene....................... **C Vinyl chloride...................... 500 VInylcyanide, see Acrylonitrile............. Vinyl toluene............................... 100 Warfarin...................................................... Xylono (xylol)............................... 100 Xylidino--Skin............................ 5 Yttrium................................................... Zinc chloride fume..... ................ ............... Zinc oxide fume------------ ---------------------- Zirconium compounds (as Zr)__________ *1970 addition. Footnotes continued on page 700. mg./M1 1 0.2 0.05 9 4,170 4,170 35 2 0.075 590 0.07 3 8 1.5 0.1 5 2 0.1 0.14 22 5 45 15 5 300 7,600 100 6,100 1.5 0.X 3 560 0.05 0.25 0.5 0.1 1,300 480 0.1 435 25 1 1 5 5 699 1910.1000(a)(2) 1910.1000(a)(2) OCCUPATIONAL SAFETY AND HEALTH STANDARDS AND INTERPRETATIONS *``This standard applies in cotton yam manufacturing I until compliance with 1910.1043 (c) and (e) is achieved. * Parts uf vapor or gas per million parts of contami nated air by volume at 25 C. and 760 mm. Ilg pressure. ` Approximate milligrams of particulate per cubic meter of air. (No footnote "c" is used to avoid confusion with ceiling value notations.) * An atmospheric concentration of not more than 0.02 p.p.m., or personal protection may be necessary to avoid headache. - As sampled by method that does not collect vapor. r For control of general room air, biologic monitoring is essential for personnel control. employee's exposure to a material listed in table Z-2 shall not exceed at any time during an 8-hour shift the acceptable ceiling concentration limit given for the material in the table, except for a time period, and up t a concentration not exceeding the maximum duration and concent ration allowed in the column under "acceptable maximum peak above the acceptable ceiling concentration for an 8-hour shift." (b) Table Z-2: (1) 8-hour time weighted averages. An employee's exposure to any material listed in table Z-2, in any 8-hour work shift of a 40-hour work week, shall not exceed the 8-hour time weighted average limit given for that material in the table. [2) Acceptable ceiling concentrations. An (3) Example. During an 8-hour work shift, an employee may he exposed to a concentration of Benzene above 25 p.p.m. (but never above 50 p.p.m.) only for a maximum period of 10 minutes. Such exposure must be compen sated by exposures to concentrations less than 10 p.p.m. so that the cumulative exposure for the entire 8-hour work shift does not exceed a weighted average of 10 p.p.m. Table Z-2 Material 3-hour time average Acceptable concentration Acceptable maximum peak above the acceptable ceiling concentra tion for an 8-hour shift. Concentration Maximum (Z37.29-I970). . 10 p.p.m_______ 25 p.p.m----------- 60 p.p.m_______. 10 minutes. 2 Mg./M3------------ 5 mB./M3------------ 26 Mg./M*............ . 30 minutes. 0.1 mg./Ms_ ___ 3 mg./M5_______ 0.2 mg./M* 0.6 mg./M*______ 20 p.p.m_______ 30 p.p.m_______ 100 p.p.m______ Do. 10 p.p.m_______ 26 p.p.m_______ 200 p.pjn_____ _ 5 minutes in any i hours. 20 p.p.m_______ 30 p.p.m_______ 50 p.pjn 5 minutes: . 60 p.p.m............ 100 p.p.m______ 200 p.p.m______ . 5 minutes in any 3 hours. 3 p.p.m________ 6 p.p.m________ 10 p.p.m_______ 30 minutes. 2.6 mg./M3______ Lead and its inorganic compounds (Z37.11- 0.2 mg./M*.. 1969). Methyl chloride (Z37.18-1969)....................... 100 p.p.m........ 200 p.p.m............... 300p.p.m......... . 5 minutes In any 3 hours. Methylene Chloride (Z37.3-I963).................. 500 p.p.m........ 1,000 p.p.m............ Z,000 p.p.m......... 5 minutes in any 2 hours. Organo (alkyl) mercury.(Z37.30-1969)0.01 mg./M*___ O.Ot mg./M1______________ _______ _ Styrene (Z37.15-1969)..................................... 100 p.p.m........ 200 p.pjn............... 600 p.p.m.......... 5 minutes in any 3 hours. Trichloroethylene (Z37.19-1967)__ _____ _______ dodo 300 p.p.m.............................. 5 minutes in any 2 hours. Tetrachloroethyiene (Z37.22-1967)........................do....... .............. do..............................do____ ____ 5 minutes in any 3 hours. Toluene (Z37.12-1967).................................... 200 p.pjn____ 300 p.p.m.............. 500 p.p.m.......... 10 minutes. Hydrogen sulfide (Z37.2-1966)................................................. 20 p.p.m.................50 p.p.m............. . 10 minutes once only if no other measur able exposure occurs. Mercury (Z37.8-1971)__________ ____ _____ _______________1 mg./lOM *_ * Chromic acid and chromates (Z37.7-1971).....................................do3........ / 1 Occupational exposures to benzene are subject to the re quirements of 1 1910.1028 except as specifically exempted by 5 1910.1028(a)(2). Exposures exempted by i 1910.1028(a)(2) are covered by this } 1910.1000 1910.1000(b)(3) 700 Change 5 /T\ '''Jr-*' { .wyjywjjt.1' BIRD 012672 OCCUPATIONAL SAFETY AND HEALTH 1910.1000(c) STANDARDS AND INTERPRETATIONS (c) TabU Z-3: An employee's exposure to any material listed in table Z-3, in any 8-hour work shift of a 40-hour work week, shall not exceed the 8-hour time weighted average limit given for that material in the table. Table Z-3~Mineral Dusts Substance Mppcf Mg/M* Silica: Crystalline: Quartz (respirable) 250 t %SiOa+6 Quartz (total dust)_________ Crlstobaiite: Use H the value calculated from the count or mass formulae for quartz. Tridymite: Use H the value calculated from the for mulae for quartz. Amorphous, including natural dlatomaceous earth 20 lOmg/M* m %S10i+2 30mg/M* %S,Oj+2 80mg/M* %S10 Silicates (less than 1% crys talline silica): Mica...................................... Soapstone Talc (non-asbestos-form).. Talc (fibrous). Use asbestos limit ....... ........................ Tremolite (see taic, fibrous) Portland cement Graphite (natural) Coal dust (respirable fraction less than 6% SiOj)....... ......... For more than 6% SiOj_______ Inert or Nuisance Dust: Respirable fraction Total dust 20 20 20" 50 15 2.4mg/M* or lOmg/M* %SlOt+2 15 5mg/M* SO 15mg/M* Note: Conversion factors-- mppcfx35.3=million particles per cubic meter =particles per c.c. Millions of particles per cubic foot of air, based on Impinger samples counted by light-field technics. * The percentage of crystalline silica in the formula is the amount determined from air-borne samples, ex cept In those instances in which other methods have been shown to be applicable. > As determined by the membrane filter method at 430xphase contrast magnification. Both concentration and percent quartz for the appli cation of this limit are to be determined from the fraction passing a size-selector with the following characteristics: 11 Containing < 1% quartz; if > 1% quartz, use quartz limit. (d) Computation formulae: 0) (i) The cumulative exposure for an 8-hour work shift shall be computed as follows: C.T, -f- C,Ti -f* . . . CuT. E ------------------------------------------ 8 where: E is the equivalent exposure for the working shift. C is the concentration during any period of time T where the concentration remains constant. T is the duration in hours of the exposure at the concentration C. The value of E shall not exceed the 8-hour time weighted average limit in table Z-l, Z-2, or Z-3 for the material involved. (ii) To illustrate the formula prescribed in subdivision (i) ofthis subparagraph, note that isoamyl acetate has an 8-hour time weighted average limit of 100 p.p.m. (table Z-l). As sume that anemployee is subject to the follow ing exposure: Two hours exposure at 150 p.p.m. Two hours exposure at 75 p.p.m. Four hours exposure at 50 p.p.m. Substituting this information in the for mula, we have 2 X 150 + 2 x 75 -f 4 x 50 ....... = 81.25 p.p.m. 3 Since 81.25 p.p.m. is less than 100 p.p.m., the 8-hour time weighted average limit, the exposure-is acceptable. (2) (i) In case of a mixture of air contaminants an employer shall compute the equivalent exposure as follows: Ci Cz E, + --+ Li L2 c,, L. where: Em is the equivalent exposure far the mixture. C is the concentration of a particular contaminant. L is the exposure limit for that contaminant, from table Z-l, Z-2, or Z-3. 701 1910.1000(dK2)K) 1910.100(Kd)(2)(i) STANDARDS AND INTERPRETATIONS OCCUPATIONAL SAFETY AND HEALTH The value of Em shall not exceed unity (1). (ii) To illustrate the formula prescribed in subdivision (i) of this subparagraph, con sider the following exposures: Material Acetone (Table Z-l) 2-Butanone (Table Z-l) Toluene (Table Z-2) Actual con centration of 8-hour exposure 8-hour time weighted average exposure limit 500 p.p.m. 1,000 p.p.m. 45 p.p.m. 200 p.p.m. 40 p.p.m. 200 p.p.m. Substituting in the formula, we have: 500 45 40 Em --------- H---------- -|----------- 1,000 200 200 Em = 0.500 + 0.225 + 0.200 E- = 0.925 Since Em is less than unity (1), the expoure combination is within acceptable limits. (e) To achieve compliance with paragraph (a) through (d) of this section, administrative or engineering controls must first be determined and implemented whenever feasible. When such controls are not feasible to achieve full compliance, protective equipment or any other protective measures shall be used to keep the exposure of employees to air contami nants within the limits prescribed in this section. Any equipment and/or technical measures used for this purpose must be approved for each particular use by a compe tent industrial hygienist or other technically qualified person. Whenever respirators are used, their use shall comply with 1910.134. If! 'IfP 1910.1001--ASBESTOS (a) Definitions. For the purpose of this section. (1) "Asbestos" includes chrysotile, amosite, crocidolite, tremolite, anthophyllite, and actinolite. (2) Standard effective July 1, 1976. The 8-hour time-weighted average airborne concentra tions of asbestos fibers to which any employee may be exposed shall not exceed two fibers, longer than 5 micrometers, per cubic centimeter of air, as determined by the method prescribed in paragraph (e) of this section. (2) "Asbestos fibers" means asbestos fibers longer than 5 micrometers. (b) Permissible exposure to airborne concen trations of asbestos fibers. (1) Standard effective July 7, 1972. The 8-hour time-weighted average airborne concentra tions of asbestos fibers to which any employee may be exposed shall not exceed five fibers, longer than 5 micrometers, per cubic centimeter of air, as determined by :!?lf t^le method prescribed in paragraph (e) of this section. (3) Ceiling concentration. No employee shall be exposed at any time to airborne concentra tions of asbestos fibers in excess of 10 fibers, longer than 5 micrometers, per cubic cen timeter of air, as determined by the method prescribed in paragraph (e) of this section. (c) Methods of compliance. (1) Engineering methods. (i) Engineering controls. Engineering con trols, such as, but not limited to, isolation, enclosure, exhaust ventilation, and dust I910.I001(c)Xi> 702 I i ( *r i BIRD 012674 19308 PH0P05ED RtftES h 2--Concnurmc Ayncnax A or list. Any request to exclude aminers! for dtetxtte tg^|C|lTDEnATltI.TaTp*-" ^ Appendix A must show that the mineral dlopslda Section 71015(a) (5) of the proposed regulation provided, that any mineral specifically designated In Appendix A of the Candidate Ust -would be exempt does not satisfy the above stated criteria. Manama - CvnucuTOr Thrara Coasxswxzow sou iHCCUstotf sr Amafure A or rsc* Cta~ mui hxsr dlorlte dloptae* dolomite dolomltiottm* dumontit* - from the reporting requirements lor acmlt* compilation ol the Inventory and would acUneUt* be automatically Included cm the In aeechynlt* blomstrandlneprlorlte boohmlta dnnlta edlngtobtta emerald . ventory ol chemical substances. Any atfclnlt* boraclto emery 'mineral not included to'Appendix .A. however, would be subject to the general reporting requirements. The following list entitled "Minerals - Currently trader Consideration for todmlon to Appendix A of the Candidate tost" was prepared for EPA by the De partment of interior's Bureau of Mines. The Bureau included all Known minerals and rock products which have been produced or processed for the commer cial market within the pdst three years. Minerals mined and consumed whcdly to foreign countries wore excluded, in re viewing the minerals on this list. EPA Intends to apply the following criteria In selecting minerals to be Included to Appendix A of the Candiate List: aTasfctt* . alblt* aUaalt# alum alumina. aluminum caa phoaphataa aluminum sittc&taa aluminum eulfate* ambatoarintt*. ambsr amblygonu*amethyst ampangabalt* amphtbola group minerals amphibolite analdmo anatvie oncyUta borax boxntte braggtta brannertt* teewetem* brine brltbolite brachanttt* bruclta burkelte buxdta calcite calctum-anentta calcium alllcatea caliche cancrlnlta cappdsnlt* earnout* caryocetita cassltertta cenoalte anargtte aastatlt* eptetabite epscmlte crlklta , erlonita -eechiregsita eucryptita - fanjaelta fayaltt* . feldspar group/ minerals / ferbsrit* ftrgbanlta ferrterlte fire day Hint day fltiocerlte fluanpaUta fluorite (1) The mineral has Seen manufactured oadalualto or processed for a commercial purpose la andesite the United States during the period begin angetstea ning July 1,1971. anhydrite (3) The mineral Is obtained Cram a mine, anfcerite well, or by collection Cram the land or anorthita waters and is unprocessed, dried, or proc anorthoelaaa eeded only by mechanical or gravitational aathop&yUtta auMgs such as crushing, grinding, floating. anthracite e?|ig. or sieving. antigorite iSj^The mineral la not now recognized to antimnnlte be oi immedlate toxicological concern to war antlerlte rant SPA Identifying at this time each of its apatite manufacturers. apllte <4) The mineral Is described by a name apophylllto which Identifies it aa specifically and nar aquamarine rowly as possible. aragonite . arfredsonlte - EPA now recognizes that some of the argenttte minerals on this list do not meet these argUlita criteria for a variety of reasons. For arkoso examp.IeTSanmentfies-suGh-w^&paeSfeitnd ebnrcoal de-not-meet-the^econd criteria with, respect to processing: With respect to the third, criteria concerning toxico logical effects, several minerals such as arsenopalladlsite arseoopjrlte asbestos atacamite- attspuiglte auerllte asbestos, uranium ore, and mercury ore augtte may be considered inappropriate for Ap autunlte pendix A Finally, several materials on azarite the list are identified to broad classes. aturfte EPA is concerned that such broad classes bablngunlte may Include minerals wfclch on the basis of toxicological criteria, would otherwise be excluded from Appendix-A-Such classes'as "feldspar group minerals" and baddeleylta bafcetito ball day barite basalt "quartz group minerals" will need to oe -bassanite' examined to this regard. bassettte ~~ to citing these examples. EPA seeks only to Illustrate the considerations which will be taken Into account to as sembling Appendix A EPA solicits ex bastnaesfta bauxite bszzlt* beefcellt bacquereltta amination by the public of each entry bentonite celslan eeraryjrlta cerlta fluorspar flyash forsterlt* eeruulte obablalta chalcedony fuurtnatiertta ftanfcltnlte fucbslta chaleoeita fuller's earth ebalootamprlta ehalcophantt* cbalcopyrlte . cbalfc charcoal . cherallt* chert - china clay chlorite chrome ora chromite chryaoberyl chrysoooUe '* gabbro gaddlnlta gahnite galena gaUlte garnet garntortte genonlte gaytusslta gem stones germanlte geocronlrs ehryroUt* gendoriat*- ehryaoHle eburcblto geversit* glbbslto cinnabar gtsmondlna darketto glauberlto day glaocodoc ctaystona glauconite dlnoptllollts glaucophaae coal goetblta cobaltlte cobalt ore codazzlte cotflnlte coke conglomerate cooparlte oopper ore coral corundum eovelllte . craddollta crude oU cryolite eubanlte commlngtentta cuprite - gmellnlte gold ore __ gonnardlta granite granfta pegmatite granodloiita (rapblta gravel greeaallta gxeenoekit* greensand grunente gummlta gjpdte gypsum haUta on the Minerals Tinder Consideration bertraudtto curlto balltsorea ZJst with regard to Its suitability for in clusion in Appendix A of the Candidate list. EPA also solicits other proposed addjttons or exclusions. Any request to tn- beryl beta*t bentonitic tiay btidtalta dachbudlt* dadte davldlte detare-nzlta halloyxlta harmotoma bardystontc# hsstite - ' a mineral to Appendix A must btotite J dewindtits hatcbettoltte ^_,>ly show that the mineral satisfies blsmlto diamond bauynlts the criteria stated above for placing that blsmuthlnlta mineral to Appendix A of the Candidate blamutlt* diaspora dlatomlt* bsetortt* hedenberglt* heOaodlte hematite ' bemlmoxphtte' hncyntta ' herschellt* hetaexom*. heterogeutt* beuZandlt* hcxagonlt# bolllagowitiUdta bombleoda hovmta huetmerit* hutchteaocrtta byalcpbsma hydrtibocactt* bydrnhataarauta hydrotbcslta hydroxyapatite bypecstea# lantblutta mita Umenoratila llsnman.nlt toy-dte Iranit* honor* tsbJkamlt*.. Jacobs#* Jadslta Jamesonlte . laroelta Johnnalta Johnstruptta Jordlslt* kslfcmsaktte kaolin ksoilnlte lUUG0Ut9 fceboeita kemlto Meserita fcnoptte kopplte kyamta tahrndoclt* tantbanlte lapis lazuli faumontit* tan Write lazurito lead oro lemonttt* Iepldocroctte lepldoltta lesdsguta leudte lencoxena levynite lignite limestone Umonite Unnaelte ' ttzardlte lodllngtta lopartea lorartdlto tudwlglte-pelgette macktatoahfta maghemite magneatofemta magnetite magnetite mtltrMt. manganses or* manganit* mam* mareaett* marl marmatlta mslanoccctt* meuddyeerB* mercury ora meoollt* federal rrasriv, voc so. *a to--ruesoAV, ambc ii. it7 V BIRD 012675 r. mlrablllto molybdenite molybdenum or# mouazlt* monchalt* montmortllonlt* mordenlt* . mo#endrit# mud#ton# mulllt* (muscovite.) nmgeteUt* nagfagltc nahcoltt* native copper natroUt* natural gae natural gaa condenaatec ntphellne syenlt* nephallt# nlocoUta nickel or# niter noaallte novaauUt* ochr# offrsttta otavlt* oil shale oilgodae* oilvtn# opal orplment PROPOSED RULES parislt# parsonic# pavllnglte p earedt* pearl pot pectollt* pegmatlt* pontlandlt* pecielaa* peridotlt# perilto perovsidte patallto petroWum phenadte phUUpeit* phlogoptt* phonoUte phoeph&t* (Ode phosphates phosphorite plcrollt* plseklt* pitchblende ptagtocUa* pUdrnim or# plumbonloblte poUudto polybaalt* polyema# polygorsfclte polyballte polymlgnite potash potassium prehnlt* pcraeUlt# prehnlt* prtoelt* proostlt* pumleo pumlclta pynnhodt* pyrargyrtt# pyrita pyrotualt* pyrophyint# pyroxene group mineral# pyroren# euglt* pyroxene hyp erathan* pyroxerurtyallte pyroxenlta pyrrhattt# quart*group } { minerals 'quartzite / rammelebeiglt* rare earths rauvit# realgar reoardlto renlerita resins ratztan rhabdophunit* rhodochroelt* rhyolite rhodonite rtchtertt# riebeckit* rlnklt#. rtnkoUt* rock salt roeselt* rottaostoo* - rowlalhtlto ruby ruthertordiraa ruffle safflortte salt samlreslta sand sandstone sspoolta sapphire sartorlta sassollt# saioult# soheellta scheffertt* schist scoleclta scoria searlealto septollta sarldt* serpestlno shala ahalaotl shard Vsldarita .. silica silica sand \ silica atone \ - slUlmaalta sllta siltstana silver ora skodowaklta skutterndlta slats smalttta smlthsonlta soapston* sodallt# soddylfci sperrylit# sphalerite spinel spoduraen* stanslta staurotlt* stoatlta steUarita _sttbloonlt* stlbnlt* (PR Doc.TT-eeW ra#d 4-U-7r:3:4S am] stitchtit* sttihlt* stupnomalan* stromeyerlt* strontla stronfrf.anlt* sylvsnit# sylvit* taconit* talo teepleit* tennantit* teogerit* tetrahadrlt* thaianlt* thenudlt* thompaonlta thoria thorlmnlt* tborltv thorogummlt* thortrotat* tin ora titanium or* topaa torbernlte tornahnhmlt* tourmalin* travertls* tremollt* trlpoU tritomlta troagsrlt# trona tscheffklnita tun tungsten ora turquolaa tyuyamunlta uranlnlt* uranium oreunmoclxdte uranophana 19309 uranoplllta uranoaphaadt* uranospathit* uranoaplnlt* uranothalllta urbanit* urea uvanlte vanadium ora vermlcuilta rlsetta vrbalta vysotaldta vogilt* volcanic glace vdtzttc walraldt* wallonatontt* walpurglt* water walasehenldt* woUramtt* woUaatonlt* wurtdtc xanotlm* yttriallt* yttrucarita yttrocraaita yttro&uorit* yugawerellte zeolites zeunartt* due-copper chalcanthit* zinc-copper meianteztta jjJjjjgtt ztnoor* dppattc zircon zlrkellta PID"" VI 12 *1*7 BIRD 012676