GB/T 2921-1982
Abolished
GB/T 9724-2007
Active
National standards
GB/T 9724-2007 Chemical reagent—General rule for the determination of pH
GB/T 9724-2007 Chemical reagent—General rule for the determination of pH
Basic Information
Standard Code:
GB/T 9724-2007
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:
5 pages
Scope
This standard specifies the general principles for determining the pH value of aqueous solutions using the potentiometric method. This standard is applicable to the determination of the pH value of aqueous solutions of chemical reagents. The pH value measurement range is 1 to 12.
Development Information
Replace the following standards
GB/T 9724-1988
Referenced Standards
JJG 119-2005 Laboratory pH Meters
GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions
GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions
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
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