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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

D

Substance

TWA OEL-RL

Short Term OEL-RL

Notes
ppm mg/m3 ppm mg/m3
2,4D (ISO) - 10 - 20 -
DDM 0.1  0.8 0.5 4 -
DDT - 1 - 3 -
DDVP 0.1 1 - 3 Sk
2,4-DES - 10 - 20 -
DMDT - 10 - - -
Derris, commercial - 5 - 10 -
Diacetone alcohol 50 240 75 360 -
Dialkyl 79 phthalate - 5 - - -
Dialkyl phthalate - 5 - - -
2,2'-Diaminodiethylamine  1 4 - - Sk
4-4'-Diaminodiphenyl-methane (DADPM) 0.1 0.8 0.5 4 -
1,2-Diaminoethane 10 25 - - -
Diammonium peroxodisulphate measured as [S2O8] - 1 - - -
Diatomaceous earth,
   natural respirable dust - 1.5 - - -
Diazinon (ISO) - 0.1 - 0.3  Sk
Diazomethane 0.2 0.4 - - -
Dibenzoyl peroxide - 5 - - -
Dibismuth tritelluride - 10  - 20 -
Dibismuth tritelluride, selenium doped - 5 - 10 -
Diborane 0.1 0.1 - - -
Diboron trioxide - 10 - 20 -
Dibrom - 3 - 6 -
1,2-Dibromo-2,2-dichloroethyl dimethyl phosphate - 3 - 6 -
Dibromodifluoromethane 100 860 150 1290 -
Dibutyl hydrogen phosphate 1 5 2 10 -
Di-n-butyl phosphate 1 5 2 10 -
Dibutyl phthalate - 5 - 10 -
6,6'-Di-tert-butyl-4,4,'thiodi-m-cresol - 10 - 20 -
Dichloroacetylene - - 0.1  0.4 -
1,2-Dichlorobenzene - - 50  300 -
1,4-Dichlorobenzene 25  150 50 300 -
Dichlorodifluoromethane 1000 4950 1250 6200 -
1,3-Dichloro-5,5-dimethyl hydantoin - 0.2 - 0.4 -
Dichlorodiphenyl-trichloroethane - 1 - 3 -
1,1-Dichloroethane 200 810 400 1620 -
1,2-Dichloroethane 10 40 15 60 -
1,1-Dichloroethylene 10 40 - - -
1,2-Dichloroethylene, cis:trans isomers 60:40 200 790 250 1000 -
Dichlorofluoromethane 10 40 - - -
2,4-Dichlorophenoxyacetic acid - 10 - 20 -
1,3-Dichloropropene, cis and trans isomers 1 5 10 50 Sk
1,2-Dichlorotetra-fluoroethane 1000 7000 1250 8750 -
Dichlorvos (ISO) 0.1 1 0.3 3 Sk
Dicyclohexyl phthalate - 5 - - -
Dicyclopentadiene 30 - - -
Dicyclopentadienyliron - 10 - 20 -
Dieldrin (ISO) - 0.25 - 0.75 Sk
Diethanolamine 3 15 - - -
Diethylamine 10 30 25 75 -
2-Diethylaminoethanol 10  50 - - Sk
Diethylene glycol 23 100 - - -
Diethylene triamine 1 4 - - Sk
Diethyl ether 400 1200 500 1500 -
Di-(2-ethylhexyl) phthalate - 5 - 10 -
Diethyl ketone 200 700 250 875 -
Diethyl phthalate - 5 - 10 -
Difluorochloromethane 1000 3500 - - -
Diglycidyl ether (DGE) 0.1 0.6 - - -
o-Dihydroxybenzene 5 20 - - -
m-Dihydroxybenzene 10 45 20 90 -
p-Dihydroxybenzene - 2 - 4 -
1,2-Dihydroxyethane
   particulate - 10 - - -
   vapour - 60 - 125 -
Diisobutyl ketone 25 150 - - -
Diisobutyl phthalate - 5 - - -
Diisodecyl phthalate - 5 - - -
Diisononyl phthalate - 5 - - -
Diisooctyl phthalate - 5 - - -
Diisopropylamine 5 20 - - Sk
Diisoppropyl ether 250 1050 310 1320 -
Di-linear 79 phthalate - 5 - - -
Dimethoxymethane 1000 3100 1250 3880 -
NN-Dimethylacetamide 10 36 20 71 Sk
Dimethylamine 10 18 - - -
NN-Dimethylaniline 5 25 10 50  Sk
1,3-Dimethylbutyl acetate 50 300 100 600 -
NN-Dimethylethylamine 10 30 15 45 -
Dimethylformamide 10 30 20 60 Sk
2,6-Dimethylheptan-4-one 25 150 - - -
Dimethyl phthalate - 5 - 10 -
Dimethyl sulphate 0.1 0.5 0.1 0.5 Sk
Dinitrobenzene, all isomers 0.15 1 0.5 3 Sk
Dinitro-o-cresol - 0.2 - 0.6 Sk
2,4-Dinitrotoluene - 1.5 - 5 Sk
Dinonyl phthalate - 5 - - -
Di-sec-octyl phthalate - 5 - 10 -
1,4-Dioxane, tech. grade 25 90 100 360 Sk
Dioxathion (ISO) - 0.2 - - Sk
Diphenyl 0.2 1.5 0.6 4 -
Diphenylamine - 10 - 20 -
Diphenyl ether (vapour) 1 7 - - -
Diphosphorus pentasulphide - 1 - 3 -
Dipotassium peroxodisulphate measured as (S2O8) - 1 - - -
Diquat dibromide (ISO) - 0.5 - 1 -
Disodium disulphite - 5 - - -
Disodium peroxoclisulphate (measured as (S2O8) - 1 - - -
Disodium tetraborate,
   anhydrous - 1 - - -
   decahydrate - 5 - - -
   pentahydrate - 1 - - -
Disulfoton (ISO) - 0.1 - 0.3 -
Disulphur dichloride - - 1 6 -
Disulphur decafluoride 0.025 0.25 0.075 0.75 -
2,6-Ditertiary-butyl-para-cresol - 10 - - -
Diuron (ISO) - 10 - - -
Divanadium pentaoxide (as V)
   total inhalable dust - 0.5 - - -
   fume and respirable dust - 0.05 - - -
Divinylbenzene (mixed) 10 50 - - -
Dusts - See paragraph 36 of Annexure 1