GB/T 666-2011 (English Version) Chemical reagent—Zinc sulfate heptahydrate

Standard No.: GB/T 666-2011
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 666-2011
Replace: GB/T 666-1993

Scope: This standard specifies the properties, specifications, testing, inspection rules, packaging and marking of zinc sulfate heptahydrate in chemical reagents. This standard applies to the inspection of zinc sulfate heptahydrate in chemical reagents.

GB/T 666-2011 Referenced Document

GB 15346 Chemical reagent.Packaging and marking*， 2012-12-31 Update
GB/T 3914-2008 Chemical reagent.The general rules of anodic stripping voltammetry
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 609 Chemical reagent.General method for the determination of total nitrogen*， 2018-06-07 Update
GB/T 610-2008 Chemical reagent.General method for the determination of arsenic
GB/T 6682 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 9724 Chemical reagent.General rule for the determination of pH
GB/T 9729 Chemical reagent.General method for the determination of chloride
GB/T 9738 Chemical reagent.General method for the determination of water insoluble matter
HG/T 3484 Chemical reagent.Standard of clear liquor,made from glass dust,and standard of transparence
HG/T 3921 Chemical reagent.Regulations for sampling and acceptance