GB/T 4921-1985
Active
GB/T 6912.2-1986
Replaced
National standards
GB/T 6912.2-1986 Methods for analysis of water for boiler and for cooling—The determination of nitrates and nitrites— Ultraviolet spectrophotometry for nitrites
GB/T 6912.2-1986 Methods for analysis of water for boiler and for cooling—The determination of nitrates and nitrites— Ultraviolet spectrophotometry for nitrites
Basic Information
Standard Code:
GB/T 6912.2-1986
Standard Type:
National standards
Standard Status:
Replaced
is_force_gb:
no
CCS Name:
The boiler and its auxiliary equipment
ICS Name:
Comprehensive Water Testing
Publish Date:
1986-09-16
Implement Date:
1987-09-01
Publisher:
National Standards Bureau
Technical Committee:
Xi'an Thermal Power Research Institute of the Ministry of Water Resources and Electric Power
Pages:
3 pages
Development Information
Drafting Units:
Nanjing Institute of Chemical Technology
Drafting Persons:
Shen Hongli, Guan Hui, and Ni Meizhen
Same series standard
GB/T 6912.1-1986 Methods for analysis of water for boiler and for cooling—The determination of nitrates and nitrites—Ultraviolet spectrophotometry for nitrates
GB/T 6912.3-1986 Methods for analysis of water for boiler and for cooling—The determination of nitrates and nitrites—Alpha-naphthylamine hydrochloride photometric method
Superseded by the following standards
Related Standards
GB/T 6764-1986
Abolished
GB/T 6764-1986 Radiochemical analysis of strontium-90 in water Precipitation by fuming nitric acid
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