GB/T 4921-1985
Active
GB/T 11897-1989
Abolished
National standards
GB/T 11897-1989 Water quality—Determination of free chlorine and total chlorine—Titrimetric method using N,N-diethyl-1,4-phenylenediamine
GB/T 11897-1989 Water quality—Determination of free chlorine and total chlorine—Titrimetric method using N,N-diethyl-1,4-phenylenediamine
Basic Information
Standard Code:
GB/T 11897-1989
Standard Type:
National standards
Standard Status:
Abolished
is_force_gb:
no
CCS Name:
Analysis methods for toxic substances in water environments
ICS Name:
Comprehensive Water Testing
Publish Date:
1989-12-25
Implement Date:
1990-07-01
Publisher:
The National Technical Supervision Bureau
Pages:
8 pages
Development Information
Drafting Units:
The compilation team of "Free Chlorine and Total Chlorine"
Drafting Persons:
[Zheng Song], Huang Chengwu, and Hu Shanshan
Superseded by the following standards
Adopt standards
ISO 7393/1-1985
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
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GB/T 6765-1986 Radiochemical analysis of strontium-90 in water Ion exchange method
GB/T 6766-1986
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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