GB/T 4921-1985

Waste gasfrom manufacturing process--Determination of chemical oxygendemand and nitrogenoxide--Potassium dichromate oxidation and naphthylethylene diamine colorimetric method

STANDARD published on 18.1.1985

English, Chinese -
electronic design (pdf) (190.80 USD)

English, Chinese -

Print design (190.80 USD)

The information about the standard:

Designation standards: GB/T 4921-1985
Publication date standards: 18.1.1985
Country: Chinese technical standard
Category: Technical standards GB