GB/T 12684-2018 (English Version) PDF

Standard No.: GB/T 12684-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 12684-2018
Replace: GB/T 12684-2006

Scope: This standard specifies the content of boric acid, water insoluble matter, sulfate, heavy metal, arsenic, impurity elements (sodium, iron, calcium, magnesium, aluminum, silicon dioxide) and anions (fluorine, chlorine, silica) in industrial boric acid. Bromine, sulfate, nitrate, phosphate) content and boron (¹⁰B/¹¹B) abundance ratio, chloride content in industrial boric acid, boron oxide and disodium tetraborate, industrial boric acid , Determination of iron content in boron oxide, disodium tetraborate, sodium perborate and crude sodium borate. This standard applies to the determination of the content of corresponding substances in industrial borides.

GB/T 12684-2018 Referenced Document

GB/T 3049-2006 Chemical products for industrial use. General method for determination of iron content 1, 10 Phenanthroline spectrophotometric method
GB/T 3051-2000 Inorganic chemical products for industrial use-General method for determination of chloride content-Mercurimetric method
GB/T 6682-2008 Water for analytical laboratory use.Specification and test methods
HG/T 3696.1-2011 Inorganic chemicals for industrical use Preparations of standard and reagent solutions for chemical analysis.Part 1:Preparations of standard volumetric solutions
HG/T 3696.2 Inorganic chemicals for industrical use.Preparations of standard and reagent solutions for chemical analysis.Part 2: Preparations of standard solutions for impurity
HG/T 3696.3 Inorganic chemicals for industrical use.Preparations of standard and reagent solutions for chemical analysis.Part 3: Preparations of reagent solutions

2018 GB/T 12684-2018 Boron compound for industrial use.Methods of test
2006 GB/T 12684-2006 Methods of test for boron compound for industrial use
1990 GB/T 12684.1-1990 Boric acid for industrial use--Determination of boric acid content