Document B8K7k5Q0B1EMO4Q7nyJYm9OYw

152 CHAPTER 11 1965 Guide And Data Book Table 2 .. .; Recommended Threshold Limit Values* Dick value* shoM be triad as guide* cn the uiuitiuf of health hazards and should not be regarded os Kite One* between safe and dangerous concentra tion*. They represent condition* under whkb it b bettered that Marly aO workers may be repeatedly exposed, day after day, without adverse effect. 71m value* Sited refer to liute uelghtoJ average concentration* for a normal workday. The amount by which these figure* moy be exceeded for short period* without injury to health depend* upon o number of factori such a* the frequent) with whldi high conceetraHoas occur, and the duration of sod) period*. AO mutt be token into consideration In arriving el a dedsioa o* to whether o hazardous otuation exists. Because it has been recognized that the threshold Bait* of cor lain mutely-acting tubtfance* may sol provide a safety footer comparable to that of cbronkatty-acting substances for which o timeweighted average applies, a C designation or ending bar been affixed to such values indicating that the Threshold Limit Value should hot be exceeded. The baser for the C fitting* is givers hs Appendix C [Ceding tarings to this table ore identified by an astoridc.] Spedaf ccnsideiuriow tbodd be givers to (be application of these vetoes to Queuing the health hazards which may be associated with exposure to Jhreshoid'Umit Value*' ' JtCGfff* 1963 ppm* mg/co to* Acetaldehyde..................................................... 200 Acetic acid.......... ................... ............. 10. Acetic anhydride................................... 5. Acetone............................................................... 1,000 Acetonitrile......... ........................................... 40 * 360 - 25-' 20.. 2.400 ' ;70 Acetylene tetmbromide....................... ...... tAcrolein............................................................ Acrylonitrile--Skin.......................................... Aldrin (1,2^4,10,10-hexachlor6-l,4l4&,5,8>- 8a-hejgihyqro-l,4,5,8-dimethano-naphtiialeae}--Skin....................................... ......... 1' 0.1 20 -- 14 0.25 45 0.25 AIM aloohol--Skin.......... ............................ fAllyl chloride.......................... ............... Allyl glycidyl ether (AGE).......................... Ally! propyl disulfide...:.............................. fAmmonia.......................................................... 2 1 10 ' 2 100 Ammonium sulfamate (Ammate)................ - __ - fAmyl acetate. ......... ....... 100 Amyl alcohol (isoamyl alcohol)............. 100 Aniline--Skin.................................................... s. Antimony.............. ........... ........... -- 5. 3 45 . 12 70 15 525 360 . 19 - 0.5 ANTU (alpha-naphthyl-thiourea)........ Arsenic.................................. ............. Arsine........................................ ................ ..... . Barium (soiuble compounds) ....................... Bensene (benzol)--Skin............................... Benzidine........................................ .................. . -- . 0.05 -- 25 -- 0.3 0.'5 0.2 0.5 80 A> ' '' Benzyl chloride............................................. Beryllium.......................................................... Boron oxide......... ................... ................... Boron trifluoride...... ............ i:.................... Bromine.. ..................................................... 1. -- -- 1` 0.1 .5 0.002 15 ` , 3' 0.7 Butadiene (1,3-butadiene)............................. 1,000 , 2-Butanone (methyl ethyl ketone). .7------ 2002-Butoxy ethanol (Butyl Cellosolve).......... 50 Butyl acetate (-butyl acetate). ________ 200 Butyl alcohol.................................. ............... 100 . 2,200 . 590 240 950 300 tert. Butyl alcohol.. ...................................... Butylamme. ................................................... 100 . 5 300 ' 15 Accra Tkbte 9 b repj . " Part* cl vi rr.Tr. fly promira. Confemaee of Governmental Industrial Hysbabta . nbrionof ACQIH. CM per million ports of sir by volume at 25 C and 700 mixtures of two or more substances. A brief disrusiion of boric cosridorofioai involved to developing tbrediold Bait vetoes for mixtures; .and methods for their development, cmpEfbd by specific examples ore given to Appendix 8. Threshold Omit* are based on the best avaifabto information from todriririd experience, from experimerstal studies, and, when possible, from a combtoo- Kon of the two. Them vetoes are'based on various criteria of toxic effect* 'or on merited discomfort; thus; they should 'not be used as a* commoa de nominator of toxiaty, nor should they be considered os the sole criterion to proving or disproving diagnosis of inspected occupational disease. . .. - These Bouts are intended for use in the field of industrial hygiene and should be toteipreted and applied only by person* trained to this field. They are not intended for use, or for modification for use, (I) as a relative index of toxicity, by making o ratio of two Coils, or (2) to the evaluation or control of community ah poOutioo or ah pollution nuisances, or (3) to estimating the toxic potentfed of castftotroas uninterrupted exposures. - These vetoes are reviewed asusuoffy by the Committee on Threshold Umfit for revisions, or additions, as further information become*-qvaifabfB. The Committee ewfeome* the ruggertioa of substances to be'added to the Gst and also comments, reference*, or report* of experience with' these malarial*. . Threshold limit Value* f ACGIH* 1963 PP"b n-Butvl rivrddvi ether (BGE)............. Butyl mercaptim.............................................. p-tert. Butyltoluene........................................ 50 10 10 __ Calcium arsenate............................................. __ Carbon dioxide.............................. ............... 5,000,. Carbon disulfide--Skin.................................. 20 . Carbon monoxide............................................ 100 ag/cu a* 270 35 60 0.1 1 9,000 60 110 Chlordane (1,2,4,5,6,7,8,8-octachloro-3a,4t7,7a-tetrahydro-4,7-methanoindene).... Chlorinated camphene, 60%......................... Chlorinated diphenyl oxide................ ~.____ OWnrin* Chlorine trifluoride....................... r............. Cbloroacetaldehyde...................................... 10 -- --- _1 0.1 0.1 1 Chlorobenzene (monochlorobenzene).......... Chlorodiphenyl (42% Chlorine)--Skin___ Chlorodiphenyi (54% Chlorine)--Skin.... 75 200 -- --- Chloroform (trichloromethane).................. 1-Chloro-l-nitropropane ........................ ........ Chloropicrin...................................................... Chloroprene (2-chloro- 1^-butadiene)......... 50 20 0.1 25.. Chromic arid and chromates (as CrO*)... __ 65 0.5 0.5 0.5 3 0.3 0.4 3 350 1,050 1 0.5 240 100 0.7 . 90 0.1 Crag* herbicide (sodium 2-{2,4-dichlorophenoxy] ethanol hydrogen sulfate).... ` '-r- * !5 . Cresol (all isomers)--Skin.................... Cyanide (as CN)--Skin................................. Cyclohexane...................................................... Cyclohexanone................................................. Cyclohexene...................................................... 5 --. 400 50 50 400 22 5 1,400 200 200 1,350 2,4-D(2,4-dichlorophenoxy-ecetic arid) _ DDT (2,2-bis |p-chlorophenyl}-l,l,l-trichloroethane)---Skin................................... " - - 10 1 Apsradmate miTligrum* pr eoUe mater of sir. , 11963 Bevisiaa. CdHat tivtma Note: The word "Skin" fallewint enbefnee isdieatee that the Hatud a* penetrate the ekia to contribute to the expaeura. Xir. Contaminants 153 Table 2 .... Reaxnmended Threshold limit Values* {Continued) Thredtold limit Vdues ACGfN* 1963 ^^^i^alrobol (4^hydroxy^4-methyl-2pentanone).................................................... l^Ditjromocthaoe (EthyleM dibromide) PP* ag/cu to* 0-05 0.3 f 50 0.1 25 240 0.1 : 190 o-Dichlorobenzene. j-Dichlorobenzene. 1.1-Dichloroetbane.. ----- - - - l>Dicbioroethane (ethylene dichlonde).. so75 000 100' 50 300 " 450 : 4,950 400 200 ' 1 2-Dichloroethylene..................................... Dichloroethyl ether...................... ......... Dfehioromonofiuoromethane......................... 1 l-Dichloro-l-nitroethane............................ Dichiorotetrafluoroethane............................. 200 15 r 000 10 ,000 790 ' -90 s 4,200 60. : 7,000 , . Diddrin (1.2,3,4,10,10-hexachloro-6,7epoxy-l,4j4a,5,6,7,8,8a-octahydro-l,4, 5,8-mmethanonapbthaleae>--Skin.......... Dietbylamine.............................. .................... 25 . , . 0.25' 75 Difluorodibromomethane............................... fDiglycidyl ether (DGE)............... Diisobutyl ketone.......... .... ....... ......... Dimethyl acetamide--Skin........................ Dunethylaallme (N-dimeibylaoiline)-- Son............................................... '.............. 100 0.5:. . 50.; .- 10 ' 860 " 2.8-'. 290 . .35. . 5 25 -- Dimethylformamide............ ................. 1.1-DimethyIhydrazine--Skin...................... Dimethylsulfate--Skin.............. ................. Dinitrobeozene--Skin.................................... Dinitrotoluene--Skin....................... Dinitro-o-cresol--Skin .. ..................... Dioxane (diethylene dioxide)............. Dipropylene glycol methyl ether......... EPN (O-ethyl O-p-nitrophenyl thiono- benzenepboephonate)---Skin..................... "20 . 0.5 , -- __ 100 .* 100 ' ! 60 ` 1 -T ' :5 .1.5... :o.`2- 360 . ' 600 0.5- Ethyl acetate.. ............. Ethyl acrylate--Skin__ Ethyl alcohol (ethanol). Ethyiamine...................... Etnylbeazeae.. Ethyl bromide................. Ethyl chloride................. Ethyl ether....................... Ethyl formate................. fEthyi mercaptan.... 400 - 25 ,000 25 200. 1,400 100 1,900-.: 45 870 - -T .200.. - 890 ! ". ,000 . . 2,600 400-, 1,200 , 100 300 20 .52. ; Ethyl silicate................................................... Ethylene chlorohydrin--Skin..................... Ethylenediamine............ ............... ......... Ethylene glycol dinitrate--Skin................ Ethylene unrne--Skin................................... 10-0g. .- - 10" 0.2 5 '850' 16 30' 1.2 .9 `V;' Ethylene oxide................................................ 2-Ethoxyethanol (Cellosolve)..................... 2-Ethoxyethylacetate (Cellosolve Acetate) Ferbam (ferric dimethyl dithiocarbamate). 50 ' 200 100 -- .. ' 90 ; 740 -540 16 Ferrovanadium dust.: V:! ...". Fluoride................... Fluorine...................................... Fluorotrichloromethane......................... Formaldehyde............... ....... Furfural............___________________ r.. Furfuryl alcohol............... ....... ......... __ 0.1 ,000 5 2.5 . 0.2 5,600 6 . 50. 20 . 200 . Threshold Limit Vrdue* ACCIff 1963 ppaP mg/cu at Gasoline............. ............................ Glyridol (2,3-epoxy-l-Propanol). Heptane (n-heptane)...................... Hexane (a-hexane)............................ Hexanone (methyl butyl ketone).. fseo-Hexyl acetate............................ Hexono (methyl isobutyl ketone). Hydrazine--Skin............................ 500 2,000 . / 50 150 - / 500 2,000 500 `. 1,800; 100 ., -r- 410... 50 295 ' 100 .: 410 . 1 1.3 Hydrogen bromide............................ Hydrogen chloride.......................... Hydrogen cytuiide--Skin................ Hydrogen fluoride............................. Hydrogen peroxide, 90%................ Hydrogen selenitic........................................... Hydrogen sulfide........................... ........... Hydroquinone....................... ^.............. Iodine................................................................ Iron oxide fume..................'............................ Isophorone......................................................... Isopropylamine............. ................................ Isopropyl glycidyl ether-(IGE).'. Ketene................................ ........................ Lead............................i...................................... Lead arsenate..-.............................................. 3 5 .10 '-1 3 1. 10 . 7 -- ' 11 '. - 2 ' - 1.4 ; 0.05 20 -- 0.1-- : 0:2 30 . 2' "1 15 . 25 ~ 140 - 5 . 12 J 50 ' 240 r 0:5^ -- 0.9 0.2 0.15: lindane (hexachlorocydohexane, gamma isomer)................................................... Lithium hydride............................................... Magnesium oxide fume................................... -- -- 0.5, ' 0.025 15 Malathion (0,< O-dimethyl dithiophosghate of diethyl mercaptosucrinate)-- Manganese-- ............. ............. Mercury............................................................. _.1. 'i .15 5. ' -- ' ' '* Oil Mercury (organic compounds)--^Skin. ' Mesityl oxide........................... ........... . . .25;; Mcthoxychlor (2,2-di-p-methoxyphenyM,- 1,l-tnchloroethane).................. . --- - 0.01. 100 ` 15 .: Methyl acetate.............................. ............. 200'* Methyl acetylene............. ......................... 1,000 ! Methyl acrylate--Skin............................... 10 Methyial (dimethoxymethane)............ 1-.000 Methyl alcohol (methanol)......................... . 200 610 1,650 35 3,100 260 ` Methyl bromide--Skin.............................. 20., Methyl cellosolve (2-methoxyethanol) >: 25' Methyl cellosolve acetate (ethylene glycol monomethyl ether acetate)..................... 25 80 80 ' 120 Methyl chloride-.'.............................. .:;i6o.:r:, '.216.;.. fMethyl chloroform (1,1,1-trichloroethane) 350 . 1,900 ' , Methyicyclohexane....................................... 500 - 2,000 Methylcydohexanol_______ ___. ............ 100 .. , 47. - - Methyicyclohexanone....-........... ......... Methyl formate........................... ......... Methyl isobutyl carbinol (methyl amyl alcohol).................... ........................ fMethyl mercaptan.............. ^-Methyl styrene......................................... Methylene chloride (dichloromethane).. Monomethyl aniline--Skin...................... ' 460 100 250 25 20 100. 500 ' 2.' 100 40 , - ' 480' ` 1,750 .9 Molybdenum . (soluble compounds)................................ (insoluble compounds)^......... ............. _' 5' ' 15 fl mI