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GB/T 12684.4-1990 Replaced National standards

GB/T 12684.4-1990 Boric acid for industrial use—Determination of sulphate content by visual turbidimetry

GB/T 12684.4-1990 Boric acid for industrial use—Determination of sulphate content by visual turbidimetry

Publish Date: 1990-12-30 Implement Date: 1991-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 12684.4-1990
Standard Type: National standards
Standard Status: Replaced
is_force_gb: no
CCS Name: Inorganic acids and alkalis
ICS Name: Acid
Publish Date: 1990-12-30
Implement Date: 1991-12-01
Publisher: The National Technical Supervision Bureau
Technical Committee: Tianjin Chemical Research Institute of the Ministry of Chemical Industry
Pages: 3 pages

Development Information

Drafting Units:

Tianjin Red Flag Chemical Plant and Tianjin Chemical Industry Research Institute of the Ministry of Chemical Industry

Drafting Persons:

Zhou Xuncheng and Li Jingge

Word Count: 3 Thousand words Pages: 3 pages

Same series standard

GB/T 12684.1-1990 Boric acid for industrial use—Determination of boric acid content GB/T 12684.2-1990 Boric acid for industrial use—Determination of insoluble substance content in water GB/T 12684.3-1990 Boric acid for industrial use—Determination of sulphate content by reduction and titrimetry GB/T 12684.5-1990 Boric acid for industrial use—Determination of chloride content GB/T 12684.6-1990 Boric acid for industrial use—Determination of iron content GB/T 12684.7-1990 Boric acid for industrial use—Determination of ammonia content GB/T 12684.8-1990 Boric acid for industrial use—Determination of heavy metal content GB/T 12684.9-1990 Boric acid for industrial use—Determination of manganese content GB/T 12684.10-1990 Boric acid for industrial use—Determination of chromium content GB/T 12684.11-1990 Boric acid for industrial use—Determination of cobalt content

Superseded by the following standards

GB/T 12684-2006 Methods of test for boron compound for industrial use

Referenced Standards

GB/T 602-2002 Chemical reagent—Preparations of standard solutions for impurity GB/T 602-2026 Chemical reagent—Preparations of standard solutions for impurity

Related Standards

GB/T 12684.10-1990 Abolished

GB/T 12684.10-1990 Boric acid for industrial use—Determination of chromium content

Publish Date: 1990-12-30
GB/T 12684.11-1990 Abolished

GB/T 12684.11-1990 Boric acid for industrial use—Determination of cobalt content

Publish Date: 1990-12-30
GB/T 12684.1-1990 Replaced

GB/T 12684.1-1990 Boric acid for industrial use—Determination of boric acid content

Publish Date: 1990-12-30
GB/T 12684.2-1990 Replaced

GB/T 12684.2-1990 Boric acid for industrial use—Determination of insoluble substance content in water

Publish Date: 1990-12-30
GB/T 12684.3-1990 Replaced

GB/T 12684.3-1990 Boric acid for industrial use—Determination of sulphate content by reduction and titrimetry

Publish Date: 1990-12-30
GB/T 12684.5-1990 Replaced

GB/T 12684.5-1990 Boric acid for industrial use—Determination of chloride content

Publish Date: 1990-12-30
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