GB/T 2921-1982
Abolished
GB/T 9732-2007
Active
National standards
GB/T 9732-2007 Chemical reagent—General method for the determination of ammonium
GB/T 9732-2007 Chemical reagent—General method for the determination of ammonium
Basic Information
Standard Code:
GB/T 9732-2007
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Chemical reagents
ICS Name:
Chemical reagents
Publish Date:
2007-09-26
Implement Date:
2008-04-01
Pages:
3 pages
Scope
This standard specifies a general method for determining ammonium by visual colorimetry using Nessler's reagent. This standard is applicable to the determination of trace ammonium in chemical reagents. The detection range is 0.05 μg/mL to 1 μg/mL (calculated as NH4).
Development Information
Replace the following standards
GB/T 9732-1988
Referenced Standards
GB/T 602-2002 Chemical reagent—Preparations of standard solutions for impurity
GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods
GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods
GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods
GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods
GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity
Adopt standards
ISO 6353-1:1982
Related Standards
GB/T 2922-1982
Abolished
GB/T 2922-1982 Chemical reagents—Determination of specific surface area of solid supports used in chromatography
GB/T 3914-1983
Replaced
GB/T 3914-1983 Chemical reagents—The general rules of anodic stripping voltammetry
GB/T 673-1984
Replaced
GB/T 673-1984 Chemical reagent—Arsenic trioxide
GB/T 1263-1986
Replaced
GB/T 1263-1986 Chemical reagent—Disodium hydrogen phosphate dodecahydrate
GB/T 1292-1986
Replaced