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 |