GB/T 2921-1982
Abolished
GB/T 9721-2006
Active
National standards
GB/T 9721-2006 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)
Basic Information
Standard Code:
GB/T 9721-2006
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Chemical reagents
ICS Name:
Chemical reagents
Publish Date:
2006-09-01
Implement Date:
2007-04-01
Pages:
6 pages
Scope
This standard specifies the requirements for instruments and the determination methods for molecular absorption spectrophotometry (ultraviolet and visible light) of chemical reagents. This standard is applicable to the determination of impurity content in chemical reagents with an absorption wavelength between 200 nm and 850 nm, as well as the qualitative and quantitative analysis of organic chemical reagents, indicators, and special reagents.
Development Information
Replace the following standards
Referenced Standards
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