GB 6857-2008 (English Version) PDF

Standard No.: GB 6857-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB 6857-2008
Replace: GB 6857-1986

Scope: This standard specifies the properties, specifications, inspection rules, packaging and marking of the pH reference reagent potassium hydrogen phthalate. This standard is applicable to the inspection of pH reference reagent potassium hydrogen phthalate.

GB 6857-2008 Referenced Document

GB 1257-2007 Working chemical.Potassium hydrogen phthalate
GB 15346 Chemical reagent.Packaging and marking*， 2012-12-31 Update
GB 6851 pH Primary reagent.General rules for certification
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 9723-2007 Chemical reagent.General rule for flame atomic absorption spectrometric analysis
GB/T 9729 Chemical reagent.General method for the determination of chloride
GB/T 9732 Chemical reagent.General method for the determination of ammonium
GB/T 9738 Chemical reagent.General method for the determination of water insoluble matter
GB/T 9739 Chemical reagent.General method for the determination of iron
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