GB/T 12684.2-1990Boric acid for industrial use--Determination of insoluble substance content in water (English PDF)
工业硼酸 水不溶物含量的测定
GB/T 12684.2 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 12684-2006 | Methods of test for boron compound for industrial use | Obsolete |
| GB/T 12684.2-1990 | Boric acid for industrial use--Determination of insoluble substance content in water | Obsolete |
GB/T 12684.2-1990 is obsolete. It has been replaced by GB/T 12684-2006. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
China Oil and Chemical Industry Association
Level / Type
National · Recommended
Issue date
December 30, 1990
Implementation date
December 1, 1991
Scope
GB/T 12684.2-1990 is the English-translated version of 工业硼酸 水不溶物含量的测定.
GB/T 12684.2-1990 is the Chinese national standard "Boric acid for industrial use--Determination of insoluble substance content in water". It was issued on December 30, 1990 by China Oil and Chemical Industry Association, and took effect on December 1, 1991. It is obsolete: it has been replaced by GB/T 12684-2006.
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Document preview — GB/T 12684.2-1990
National Standard of the People's Republic of China
Issued by: China Oil and Chemical Industry Association
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: China Oil and Chemical Industry Association.
Date of issue: 1990-12-30.
Date of implementation: 1991-12-01.
Status: obsolete, replaced by GB/T 12684-2006.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
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Related Standards
GB/T 12684.3-1990 — Boric acid for industrial use--Determination of sulphate content by reduction and titrimetry
GB/T 12684.1-1990 — Boric acid for industrial use--Determination of boric acid content
GB/T 12684.4-1990 — Boric acid for industrial use--Determination of sulphate content by visual turbidimetry
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GB/T 12684.2-1990
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