GB/T 6764-1986
Abolished
GB/T 4921-1985
Active
National standards
GB/T 4921-1985 Waste gas from manufacturing process—Determination of chemical oxygendemand and nitrogen oxide—Potassium dichromate oxidation and naphthylethylene diamine colorimetric method
GB/T 4921-1985 Waste gas from manufacturing process—Determination of chemical oxygendemand and nitrogen oxide—Potassium dichromate oxidation and naphthylethylene diamine colorimetric method
Basic Information
Standard Code:
GB/T 4921-1985
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Industrial wastewater and pollutant analysis methods
ICS Name:
Comprehensive Water Testing
Publish Date:
1985-01-18
Implement Date:
1985-08-01
Publisher:
The State Environmental Protection Administration
Technical Committee:
National Environmental Protection Agency, Planning and Standards Division
Pages:
8 pages
Development Information
Drafting Units:
The state-owned Yangtze River Power Plant and the state-owned Longjiang Power Plant
Drafting Persons:
Yang Dejun and Guan Enbao
Related Standards
GB/T 6765-1986
Abolished
GB/T 6765-1986 Radiochemical analysis of strontium-90 in water Ion exchange method
GB/T 6766-1986
Abolished
GB/T 6766-1986 Radiochemical analysis of strontium-90 in water Extraction chromatography by di-(2-ethylhexyl) phosphoric acid
GB/T 6767-1986
Abolished
GB/T 6767-1986 Radiochemical analysis of cesium-137 in water
GB/T 6768-1986
Abolished
GB/T 6768-1986 Methods of analysing microquantity of uranium in water
GB/T 6906-1986
Replaced