| Substance |
Sampling method |
Analytical method |
Dichlorobenzidine and its salts
|
Liquid absorption method |
Colorimetry |
| α-Naphthylamine and its salts |
Liquid absorption method |
Colorimetry or fluorophotometry |
| Chlorodiphenyl (PCB) |
Liquid absorption method or
solid adsorption method |
Gas chromatography |
| o-Tolidine and its salts |
Liquid absorption method |
Colorimetry |
| Dianisidine and its salts |
Liquid absorption method |
Colorimetry |
| Beryllium and its compounds |
Filtration method |
Colorimetry, atomic absorption or fluorophotometry |
| Benzotrichloride |
Direct sampling method |
Gas chromatographpy |
| Acrylamide |
Filtration method |
Gas chromatographpy |
| Acrylonitrile |
Liquid adsorption, solid
adsorption, or direct sampling
method |
1. Colorimetry for liquid absorption method
|
2. Gas chromatography for solid adsorption or direct sampling
method |
| Alkyl mercury compounds (Limited to those of which alkyl is of methyl or
ethyl) |
Liquid absorption method |
Colorimetry, gas chromatography or atomic
absorption |
| Ethylenimine |
Liquid absorption method |
Colorimotry or high performance liquid
chromatography |
| Ethylene oxide |
Solid absorption method |
Gas chromatography |
| Vinyl chloride |
Direct sampling method |
Gas chromatography |
| Chlorine |
Liquid absorption method |
Colorimetry |
| Auramine |
Filtration method |
Colorimetry |
| o-Phthalodinitrile |
Filtration method |
Colorimetry |
| Cadmium and its compounds |
Filtration method |
Colorimetry or atomic absorption |
| Dichromic acid and its salts |
Liquid absorption method or
filtration method |
Colorimetry or atomic absorption |
| Chloromethyl methyl ether |
Liquid absorption method |
Colorimetry |
| Vanadium pentoxide |
Filtration method |
Colorimetry or atomic absorption |
| Coal tar |
Filtration method |
Gravimetric analysis |
| Arsenic trioxide |
Filtration method |
Colormetry or atomic absorption |
| Potassium cyanate |
Liquid absorption method |
Colorimctry |
| Hydrogen cyanate |
Liquid absorption method |
Colorimctry |
| Sodium cyanate |
Liquid absorption method |
Colorimctry |
3, 3' -Dichloro-4,4'
-diaminodiphenylmethane |
Filtration method |
Colorimetry, gas chromatography or high
performance liquid chromatography |
| Methyl bromide |
Liquid absorption method or
direct sampling method |
1. Colorimetry for liquid absorption method
|
|
2. Gas chromatography for direct sampling method |
| Bichromic acid and its salts |
Liquid absorption method or
filtration method |
Colorimetry or atomic absorption |
Mercury and its inorganic compounds
(excluding mercury sulfide) |
Liquid absorption or solid
adsorption method |
1. Colorimetry or atomic absorption for liquid absorption method
|
|
2. Atomic absorption for solid adsorption method |
| Tolylene diisocyanate |
Liquid absorption method or
solid adsorption method |
1. Colorimetry for liquid absorption method
|
| 2. High performance liquid chromatography for solid adsorption method |
| Nickel carbonyl |
Liquid absorption method or
solid adsorption method |
1. Colorimetry or atomic absorption for liquid absorption method
|
|
2. Atomic absorption for solid adsorption method |
| Nitroglycol |
Liquid absorption method |
Colorimetry |
| p-Dimethylaminoazobenzene |
Filtration method |
Colorimetry |
| p-Nitrochlorobenzene |
Liquid absorption or solid
absorption method |
1. Colorimetry or gas chromatography for liquid absorption method
|
| 2. Gas chromatography for solid adsorption method |
| Hydrogen fluoride |
Liquid absorption method |
Colorimetry |
| β-Propiolactone |
Direct sampling method or
solid adsorption method |
Gas chromatography |
| Benzene |
Liquid absorption, so]id
adsorption or direct sampling
method |
1. Colorimetry for liquid absorption method
|
| 2. Gas chromatography for solid adsorption or direct sampling method |
| Pentachlorophenol (PCP) and its sodium salts |
Liquid absorption method |
Colorimetry |
| Magenta |
Filtration method |
Colorimetry |
Manganese and its compounds
(excluding basic manganese oxide) |
Filtration method |
Colorimetry or atomic absorption |
| Methyl iodide |
Direct sampling method |
Gas chromatography |
| Hydrogen sulfide |
Liquid absorption or direct
sampling method |
1. Colorimetry for liquid absorption method
|
| 2. Gas chromatography for direct sampling method |
| Dimethyl Sulfate |
Liquid absorption method or
solid adsorption method |
1. Colorimetry for liquid absorption method
|
| 2. Gas chromatography for solid adsorption method |
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