GB/T 2921-1982
Abolished
GB/T 9733-2008
Active
National standards
GB/T 9733-2008 Chemical reagent—General method for the determination of carbonyl compounds
GB/T 9733-2008 Chemical reagent—General method for the determination of carbonyl compounds
Basic Information
Standard Code:
GB/T 9733-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Chemical reagents
ICS Name:
Chemical reagents
Publish Date:
2008-05-15
Implement Date:
2008-11-01
Pages:
4 pages
Scope
This standard specifies a general method for converting carbonyl compounds into 2,4-dinitrobenzohydrazide and determining them by colorimetry. This standard is applicable to the determination of trace carbonyl compounds in organic reagents. The detection range of spectrophotometry or visual colorimetry is 0.2 μg/mL to 1.6 μg/mL (calculated as CO).
Development Information
Replace the following standards
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 9721-1988 Chemical reagent General rules for the molecular absorption spectrophotometry(ultraviolet and visible)
GB/T 9721-2006 Chemical reagent—General rules for the molecular absorption spectrophotometry (ultraviolet and visible)
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