Document gKnVNE0bZv476Beb6MDQOyZJ

158 CHAPTER 8 1954' Guide Table 3. Maximum Allowable Concentration of Gases and Vapors Substance ASA Stand- abbs M.A.C. ppm by volume Acetaldehyde Acetic acids.......... Acetic anhydride. Acetone.................. Acrolein.................. Acrylonitrile Ammonia.................. Amyl acetate............ Amyl alcohol (iso). Aniline...................... Arsine........................ Benzene (bento!).. Bromine........................................................... 1..,3.-.B..u.t.a.d.i.e.n.e........................................... .................... 2-Butanone....................................... ........... n-Butyl acetate............................. Butyl "ceilosolve" (2 butoxyethanol). Carbon dioxide................................ Carbon disulfide............................. Carbon monoxide........................... Carbon tetrachloride........ "Ceilosolve" (2-ethoxyethanol). "Ceilosolve" acetate..................... Chlorine............................... Chlorobenzene................... 2- Chlorobutadiene............ Chloroform.......................... 1-Chloro-l-nitropropane. Cresol........ .................. Cyclohexane............................................... Cyclohexanol.............................................. Cyclohexanone.......................................... Cyclohexene................. ........................... Cyclopropane (propane).......... ............. 1-2 Dibrorooethane (ethylene dibromide) o-Dichlorobenzene........................................... Dichlorodifluoromethane................ ............. 1.1-Dichloroethane.......----- - - : ; ; 1.2-Dichloroethane (ethylene dichlonde) l'2-Dichloroetbylene...................................... Dichloroethyl ether......................................... Dichloromethane........ . ............................ Dicbloromonofluormethane. .................. 1.1-Dichloro-l-Nitroethane . -------1.2-Dichloropropane (propylene dxcnio- Dichlorotetrafluoroethane...................... Diethyl amine............................................ Dimethylaniline. Dimethylsulfate.. Dioxane.................. Ethyl acetate Ethyl alcohol.... Ethyl amine......... Ethyl benzene............... Ethyl bromide.............. Ethyl chloride. ........ Ethylene cblorhydrin. Ethylene oxide.............. Ethyl ether..................... Ethyl formate.................... Ethyl silicate...................... Fluorine................... .......... Fluorotrichloromethane. Formaldehyde................... Gasoline............................... Heptane............................... 20 100 Thbeshold Limit Values A.C.G .1-B* 1953 Oz/1000 cu ftb 200 10 5 1000 0.5 20 100 200 100 5 0.05 35 1 1000 100 250 200 200 5000 20 100 25 200 100 1 75 25 100 ' 20 5 400 100 100 400 400 25 50 1000 100 100 200 15 500 1000 10 75 1000 25 5 1 100 400 1000 25 200 200 1000 5 100 400 100 100 0.1 1000 5 500 500 0.36 0.02554 0.02085 2.4130 0.1145 0.04336 0.069 1.064 0.36 0.019 0.11393 0.00653 2.210 0.3030 0.735 0.948 0.966 0.0622 0.157 Q..736 0.54 0.3465 0.09050.488 0.101 0.022 1.375 0.409 0.401 1.34 0.6875 0.3005 4.94 0.405 0.4051 0.794 0.0878 1.74 4.20 0.0589 0.3265 6.98 0.045 0.02475 0.00515 0.36 1.44 1.881 0.868 0.892 2.64 0.01645 0.18 1.212 0.303 0.851 5.62 0.006135 2.045 2.05 0.43 0.02 0.02 2.42 0.013 0.05 1.16 0.41 0.02 0.12 0.03 3.3 . 0.36 0;8S 1.04 1.02 0.05 0.095. 0.76 0.53. 0.3 0.09 0.31 0.08 0.02 0.42 0.41 1.58 0.91 0.24 3.18 0.33 0.31 0.59 0.08 1.25 2.83 0.4 0.29 4.36 0.07 0.02 0.003 0.33 1.52 2.2 0.96 0.59 2.75 0.015 0.09 1.67 0.315 0.87 Air Contaminants 159 Table 3. Maximum Allowable Concentration of Gases and Vapors (Concluded) Substance ASAStand. abds M.A.C. ppm by volume Thbeshold Limit Values A.C.G.I.H.* 1953 ppm Gm/cu m or Oj/1000 cu ft1' Oz/1000 cu ft Hexane............................................................... Hydrogen chloride........................................ Hydrogen cyanide ........................................ Hydrogen fluoride................... .................. Hydrogen selenide......................................... Hydrogen sulfide............ .............................. s Iodine................................................................. Isophorone........................................ .......... Isopropyl alcohol.......... :............... .. Isopropyl ether....................................... ,... Mesityl oxide.................................................... Methyl acetate.......................... ;............. Methyl alcohol.................................... ........... MethyJa!............................................... Methyl bromide........................ Methyl butanone............ ............................... Methyl "ceilosolve" (2-methoxyethanoi) Methyl "ceilosolve" acetate....................... Methyl chloride.................. TV?: ."."7................ Methyl chloroform (1-1-1. trichlarocthane) Methyicyclohexane...;.......................... Methylcyclohexanol..................................... Methylcyclohexanone................................. Methyl formate............................................. Methyl iso-butyl ketone.............................. - Monochlorobenzene6..................................... Monoftuorotrichloromethane.................... Naphtha (coal tar)........................................ Naphtha (petroleum).......... .................... Nickel carbonyl.............................................. Nitrobenzene................................... . Nitroethane................................................ Nitrogen oxides (other.than nitrous ox ide) .............................................. Nitroglycerine........................... .. Nitromethane............................................ 2-Nitropropane.' Nitrotoluene. Octane............................................................... Ozone................................................................. Pentane........ .................................... Phenone ^me*kyl propanone)................ Phosgene...................................... Phosphine... Phosphorus trichloride................................ ^opyl acetate....... otibine........... Stoddard solvent___ ... .................... .......................... Styrene monomer... |u fur chloride.......... .................... Sulfur dioxide.......... ............. VFetrachloroethane ioLTna0rocthylene;;................................... Toluidine.. ethylene . * *yrPentine.............. "! !............. ^Inyl chloride Xylene.......... ................................................. 500 5 10 3 0.05 20 1 25 400 500 50 200 200 1000 20 100 25 25 100 , 500 500 - 100 100 - 100 100 75 1000 200 500 1 100 25 0.5 100 50 5 500 1 1000 200 5 0.05 0.5 200 0.1 500 200 1 5 200 200 1.76 0.00746 0.01104 . 0.00245 2.54 0.004 0.015 0.003 0.01039 0.141 . 1.022 2.085 0.2005 0.606 0.2618 3.11 0.0778 0.352 0.7775 0.1208 0.2086 2.005 0.466 0.458 0.2554 0.409 0.3465 5.61 0.638 1.945 0.00697 0.00503 0.307 0.00464 0.2495 0.182 0.028 2.33 2.94 0.704 0.0002 0.15 1.22 2.75 0.22 0.62 0.32 3.5 0.04 0.41 0.078 - 0.11 0.22 2.44 0.49 0.48 0.25 0.49 0.3 3.59 0.71 2.6 0.006 0.004 0.275 . 0.003 0.21 0.17 0.23 3.17 4.5 0.82 0.00281 0.834 -2.845 0.85 0.00552 0.343 1.358 0.752 0.0219 1.072 0.556 1.28 0.868 0.0018 0.885 3.4 0.89 0.003 0.02 0.810 0.83 0.02 0.70 0.58 1.33 0.96 A.C.G /.//. =, American Conference of Governmental Industrial Hygienists. e r'lquid-unces (at 20 C) of chemical in 1000 cu ft. *Tom 1951 list.