GB/T 4293-1984
abolished_transferred
GB/T 1621-1993
Replaced
National standards
GB/T 1621-1993 Ferric chloride for industrial use
GB/T 1621-1993 Ferric chloride for industrial use
Basic Information
Standard Code:
GB/T 1621-1993
Standard Type:
National standards
Standard Status:
Replaced
is_force_gb:
no
CCS Name:
Inorganic salts
ICS Name:
Salt
Publish Date:
1993-03-03
Implement Date:
1993-12-01
Pages:
8 pages
Development Information
Replace the following standards
GB 1621-1979
Superseded by the following standards
Referenced Standards
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 1250-1989 Rules for expression and judgement of limiting values
GB/T 6678-2003 General principles for sampling chemical products
GB/T 6680-2003 General rules for sampling liquid chemical products
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
DIN 19602-87
Related Standards
GB/T 6275-1986
Abolished
GB/T 6275-1986 Ammonium hydrogen carbonate for industrial use
GB/T 6276.1-1986
Replaced
GB/T 6276.1-1986 Ammonium hydrogen carbonate for industrial use—Determination of total alkalinity—Volumetric method
GB/T 6276.2-1986
Replaced
GB/T 6276.2-1986 Ammonium hydrogen carbonate for industrial use—Determination of chloride content—Potentiometric method
GB/T 6276.3-1986
Replaced
GB/T 6276.3-1986 Ammonium hydrogen carbonate for industrial use—Determination sulphide content—Visible turbidimetric method
GB/T 6276.4-1986
Replaced