GB/T 631-2007 (English Version) PDF

Standard No.: GB/T 631-2007
Language: Chinese, Available in English version
Release Date: 2007
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 631-2007
Replace: GB/T 631-1989

Scope: WARNING: Some test procedures specified in this standard may lead to hazardous conditions, and it is the user's responsibility to take appropriate safety and health measures. Molecular formula: NΗ down 3 Relative molecular mass: 17.03 (according to the international relative atomic mass in 2003) 1 Scope This standard specifies the properties, specifications, tests, inspection rules, packaging and signs of chemical reagents - ammonia water. This standard applies to the inspection of chemical reagents - ammonia water.

GB/T 631-2007 Referenced Document

GB 15258 General rules for preparation of precautionary label for chemicals*， 2009-06-21 Update
GB 15346 Chemical reagent.Packaging and marking*， 2012-12-31 Update
GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
GB/T 602 Chemical reagent--Preparations of standard solutions for impurity
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
GB/T 6682 Water for analytical laboratory use.Specification and test methods*， 2008-05-15 Update
GB/T 9723-2007 Chemical reagent.General rule for flame atomic absorption spectrometric analysis
GB/T 9727 Chemical reagent.General method for the determination of phosphate
GB/T 9728 Chemical reagent.General method for the determination of sulphate
GB/T 9729 Chemical reagent.General method for the determination of chloride
GB/T 9740 Chemical reagent.General method for the determination of dry residue after evaporation*， 2008-05-15 Update
HG/T 3921 Chemical reagent.Regulations for sampling and acceptance