GB/T 620-2011 (English Version) PDF

Standard No.: GB/T 620-2011
Language: Chinese, Available in English version
Release Date: 2011
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 620-2011
Replace: GB/T 620-1993

Scope: WARNING: Some experimental procedures specified in this standard may lead to hazardous conditions, and it is the user's responsibility to take appropriate safety and health measures. This standard specifies the properties, specifications, testing, inspection rules, packaging and marking of hydrofluoric acid in chemical reagents. This standard applies to the inspection of hydrofluoric acid in chemical reagents.

GB/T 620-2011 Referenced Document

GB 15258 General rules for preparation of precautionary label for chemicals
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
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 9735 Chemical reagent.General method for the determination of heavy metals
GB/T 9739 Chemical reagent.General method for the determination of iron
GB/T 9741-2008 Chemical reagent.General method for the determination of residue after ignition
GB/T 9742 Chemical reagent.General method for the determination of silicate
HG/T 3921 Chemical reagent.Regulations for sampling and acceptance