GB/T 631-2026 Active National standards

GB/T 631-2026 Chemical reagent—Ammonia solution

GB/T 631-2026 Chemical reagent—Ammonia solution

Publish Date: 2026-02-27 Implement Date: 2026-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 631-2026

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Generally, inorganic reagents

ICS Name: Chemical reagents

Publish Date: 2026-02-27

Implement Date: 2026-09-01

Pages: 16 pages

Scope

This document specifies the properties, technical requirements, inspection rules, and packaging and labeling of the chemical reagent ammonia water, and describes the corresponding testing methods. This document is applicable to the inspection of ammonia water as a chemical reagent.
Note: The molecular formula of ammonia water is NH₃·H₂O, with a relative molecular mass of 35.05 (based on the 2022 International Relative Atomic Mass), and its CAS number is 1336-21-6.

Development Information

Word Count: 21 Thousand words Pages: 16 pages

Replace the following standards

GB/T 631-2007 Chemical reagent—Ammonia solution

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 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 9723-2007 Chemical reagent—General rule for flame atomic absorption spectrometric analysis GB/T 9727-2007 Chemical reagent—General method for the determination of phosphate GB/T 9728-1988 Chemical reagent General method for the determination of sulphate GB/T 9728-2007 Chemical reagent—General method for the determination of sulphate GB/T 9729-1988 Chemical reagent General method for the determination of chloride GB/T 9729-2007 Chemical reagent—General method for the determination of chloride GB/T 9740-1988 Chemical reagent General method for the determination of dry residue after evaporation GB/T 9740-2008 Chemical reagent—General method for the determination of dry residue after evaporation GB 15258-1999 General rules for preparation of precautionary label for industrial chemicals GB 15258-2009 General rules for preparation of precautionary label for chemicals GB 15346-1994 Chemical reagent—Packaging and marking GB 15346-2012 Chemical reagent—Packaging and marking GB/T 23942-2009 Chemical reagent—General rules for inductively coupled plasma atomic emission spectrometry GB 28644.2-2012 Limited quantities and packing requirements of dangerous goods GB/T 34672-2017 Chemical reagent—General rules for the ion chromatography GB/T 39486-2020 Chemical reagent—General rules for inductively coupled plasma mass spectrometry HG/T 3921-2006 Chemical reagents sampling and acceptance rules GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity

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