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Working Environment Measurement Standards
Ministry of Labour Notification No. 46 of April 22, 1976

Latest Amendments:
Ministry of Health, Labour and Welfare Notification No. 191 of April 27, 2001
作業環境測定基準：原文

Attached Table 1 (Related to Article 10)

  • 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 for liquid absorption method
    2. High performance liquid chromatography 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, solid 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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