GB/T 9730-2007 Active National standards

GB/T 9730-2007 Chemical reagent—General method for the determination of oxalates

GB/T 9730-2007 Chemical reagent—General method for the determination of oxalates

Publish Date: 2007-09-26 Implement Date: 2008-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 9730-2007

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: 4 pages

Scope

This standard specifies a general method for converting oxalates into azo compounds and determining them by colorimetry. This standard is applicable to the determination of trace amounts of oxalates in organic reagents. The detection range of spectrophotometry is 1 μg/mL to 20 μg/mL (calculated as C2O4), and the detection range of visual colorimetry is 0.4 μg/mL to 20 μg/mL (calculated as C2O4).

Development Information

Word Count: 5 Thousand words Pages: 4 pages

Replace the following standards

GB/T 9730-1988

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 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 2921-1982 Abolished

GB/T 2921-1982 Chemical reagents—Classification and nomenclature of liquid stationary phase for gas chromatography

Publish Date: 1982-03-03

GB/T 2922-1982 Abolished

GB/T 2922-1982 Chemical reagents—Determination of specific surface area of solid supports used in chromatography

Publish Date: 1982-03-03

GB/T 3914-1983 Replaced

GB/T 3914-1983 Chemical reagents—The general rules of anodic stripping voltammetry

Publish Date: 1983-11-07

GB/T 673-1984 Replaced

GB/T 673-1984 Chemical reagent—Arsenic trioxide

Publish Date: 1984-12-27

GB/T 1263-1986 Replaced

GB/T 1263-1986 Chemical reagent—Disodium hydrogen phosphate dodecahydrate

Publish Date: 1986-08-13

GB/T 1292-1986 Replaced

GB/T 1292-1986 Chemical reagents—Ammonium acetate

Publish Date: 1986-08-13