GB/T 4699.2-2008Ferrochromium and ferrosilicon chromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method (English PDF)
铬铁和硅铬合金 铬含量的测定 过硫酸铵氧化滴定法和电位滴定法
GB/T 4699.2 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 4699.2-2025 | Ferrochromium, silicochromium, nitrogen-bearing ferrochromium and high nitrogen ferrochromium - Determination of chromium content - Ammonium persulfate oxidation titrimetric method and potentiometric titration method | Valid |
| GB/T 4699.2-2008 | Ferrochromium and ferrosilicon chromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method | Obsolete |
GB/T 4699.2-2008 is obsolete. It has been replaced by GB/T 4699.2-2025. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Level / Type
National · Recommended
Issue date
May 13, 2008
Implementation date
November 1, 2008
Scope
GB/T 4699.2-2008 is the English-translated version of 铬铁和硅铬合金 铬含量的测定 过硫酸铵氧化滴定法和电位滴定法.
GB/T 4699.2-2008 is the Chinese national standard "Ferrochromium and ferrosilicon chromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method".
It was issued on May 13, 2008 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of China, and took effect on November 1, 2008. It is obsolete: it has been replaced by GB/T 4699.2-2025.
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Document preview — GB/T 4699.2-2008
National Standard of the People's Republic of China
Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China.
Date of issue: 2008-05-13.
Date of implementation: 2008-11-01.
Status: obsolete, replaced by GB/T 4699.2-2025.
......
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 4699.3-2007 — Ferrochromium, silicochromium and nitrogen-bearing ferrochromium -Determination of phosphorus content - Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometric method
GB/T 4699.3-1984 — Methods for chemical analysis of silicochromium--The molybdenum blue photometric method for the determination of phosphorus content
GB/T 4699.4-2008 — Ferrochromium and silicochromium - Determination of carbon content - Infrared absorption method and gravimetric method
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GB/T 4699.2-2008
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