GB/T 4699.3-1984Methods for chemical analysis of silicochromium--The molybdenum blue photometric method for the determination of phosphorus content (English PDF)
硅铬合金化学分析方法 钼蓝光度法测定磷量
GB/T 4699.3 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 4699.3-2007 | Ferrochromium, silicon chromium and nitrogen-bearing ferrochromium - Determination of phosphorus content - Molybdo bismuthyl phosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method | Valid |
| GB/T 4699.3-1984 | Methods for chemical analysis of silicochromium--The molybdenum blue photometric method for the determination of phosphorus content | Obsolete |
GB/T 4699.3-1984 is obsolete. It has been replaced by GB/T 4699.3-2007. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
National Bureau of Standards
Level / Type
National · Recommended
Issue date
October 4, 1984
Implementation date
September 1, 1985
Scope
GB/T 4699.3-1984 is the English-translated version of 硅铬合金化学分析方法 钼蓝光度法测定磷量.
GB/T 4699.3-1984 is the Chinese national standard "Methods for chemical analysis of silicochromium--The molybdenum blue photometric method for the determination of phosphorus content".
It was issued on October 4, 1984 by the National Bureau of Standards, and took effect on September 1, 1985. It is obsolete: it has been replaced by GB/T 4699.3-2007.
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Document preview — GB/T 4699.3-1984
National Standard of the People's Republic of China
Issued by: National Bureau of Standards
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: National Bureau of Standards.
Date of issue: 1984-10-04.
Date of implementation: 1985-09-01.
Status: obsolete, replaced by GB/T 4699.3-2007.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 4699.4-2008 — Ferrochromium and silicochromium - Determination of carbon content - Infrared absorption method and gravimetric method
GB/T 4699.2-1984 — Methods for chemical analysis of silicochromium--The alkaline fusion-ammonium persulfate oxidation volumetric method for the determination of chromium content
GB/T 4699.4-1988 — Methods for chemical analysis of silicochromium The infrared absorption method for the determination of carbon content
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GB/T 4699.3-1984
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