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OEL-CL

OEL-RL:

A-B C-C D-D E-E F-L M-M N-O P-P Q-S T-T U-Z

DOL OEL-RL

F - L

Substance

TWA OEL-RL

Short Term OEL-RL

Notes
ppm mg/m3 ppm mg/m3
Fenchlorphos (ISO) - 10 - - -
Ferbam (ISO) -

10

- 20 -
Ferrocene - 10 - 20 -
Fluoride (as F) - 2.5 - - -
Fluorine - - 1 1.5 -
Fluorodichloromethane 10 40 - - -
Fluorotrichloromethane 1000 5600 1250 7000 -
Formamide 20 30 30 45 -
Formic acid 5 - - -
2-Furaldehyde (Furfural) 2 8 10 40 Sk
Furfuryl alcohol 5 20 15 60 Sk
Germane 0.2 0.6 0.6 1.8 -
Germanium tetrahydride 0.2 0.6 0.6 1.8 -
Glutaraldehyde - - 0.2 0.7 -
Glycerol, mist - 10 - - -
Glycerol trinitrate 0.2  2 0.2 2 Sk
Glycol monoethyl ether 10 37 - - Sk
Graphite
   total inhalable dust - 10 - - -
   respirable dust - 5 - - -
Guthion - 0.2 0.6 - Sk
Gypsum
   total inhalable dust - 10 - - -
   respirable dust - 5 - - -
Halothane 10 80 - - -
y-HCH (ISO) - 0.5 - 1.5  Sk
Hafnium - 0.5 - 1.5 -
Heptachlor - 0.5 - 2 Sk
n-Heptane 400 1600 500 2000 -
Heptan-2-one 50 240 - - -
Heptan-3-one 50 230 75 345 -
y-Hexachlorocyclohexane - 0.5 - 1.5  Sk
Hexachloroethane
   vapour 5 50 - - -
   total inhalable dust - 10  - - -
   respirable dust - 5 - - -
Hexahydro-1,3,5-trinitro-1,3,5-triazine - 1.5 - 3 Sk
Hexane, all isomers except n-Hexane 500 1800 1000 3600 -
n-Hexane 20 70 - - -
1,6 Hexanolactam
   dust - 1 -  3 -
   vapour 5 20 10 40 -
Hexan-2-one 5 20 - - Sk
Hexone 50 205 75 300 Sk
Hexylene glycol 25 125 25 125 -
Hydrazine 0.1 0.1 - - Sk
Hydrazoic acid (as vapour) - - 0.1 - -
Hydrogen bromide - - 3 10 -
Hydrogen chloride - - 7 -
Hydrogenfluoride (as F) - - 2.5 -
Hydrogen peroxide 1 1.5 2 3 -
Hydrogen selenide (as Se) 0.05 0.2 - - -
Hydrogen sulphide 10 14 15 21 -
Hydroquinone - 2 - 4 -
4-Hydroxy-4-methyl-pentan-2-one 50 240 75 360 -
2-Hydroxypropyl acrylate 0.5 3 - - Sk
2,2'-Iminodiethanol 3 15 - - -
2,2'-Iminodi(ethylamine) 1 4 - - Sk
Indene 10 45 15 70 -
Indium & compounds (as In) - 0.1 - 0.3 -
Iodine - - 0.1  1 -
Iodoform 0.6 10 1 20 -
Iodomethane 5 28 10 56 Sk
Iron oxide, fume (as Fe) - 5 - 10 -
Iron pentacarbonyl 0.01 0.08 - - -
Iron salts (as Fe) - 1 - 2 -
Isoamyl acetate 100 525 125 655 -
Isoamyl alcohol 100 360 125 450 -
Isoamyl methyl ketone 50 240 75 360 -
Isobutyl acetate 150 700 187 875 -
Isobutyl alcohol 50 150 75 225 -
Isobutyl methyl ketone 50 205 75 300 Sk
Isoflurane 50 380 - - -
Isooctyl alcohol (mixed isomers) 50 270 - - -
Isopentyl acetate 100 525 125 655 -
Isophorone - - 5 25 -
Isophorone diisocyanate (IPDI) - 0.2 - 0.07 Sen
Isopropyl acetate - - 200 840 -
Isopropyl alcohol 400 980 500 1225 Sk
Isopropyl benzene 25 120 75 370 Sk
Isopropyl chloroformate 1 5 - - -
Isopropyl ether 250 1050 310 1320 -
Isopropyl glycidyl ether (IGE) 50 240 75 360 -
Ketene 0.5 0.9 1.5 3 -
Limestone
   total inhalable dust - 10  - - -
   respirable dust - 5 - - -
Lindane - 0.5 - 1.9 Sk
Liquified petroleum gas (LPG) 1000 1800 1250 2250 -
Lithium hydride - 0.025 - - -
Lithium hydroxide - - - 1 -