GB/T 5687.4-1985Methods for chemical analysis of ferro-chromium. The neutralization titration method for the determination of nitrogen content (English PDF)
铬铁化学分析方法 中和滴定法测定氮量
GB/T 5687.4 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 5687.4-2016 | Nitrogen-bearing ferrochromium and nitride ferrochrome with high nitrogen content - Determination of nitrogen content - The distillation-neutralization titration method | Valid |
| GB/T 5687.4-1985 | Methods for chemical analysis of ferro-chromium. The neutralization titration method for the determination of nitrogen content | Obsolete |
GB/T 5687.4-1985 is obsolete. It has been replaced by GB/T 5687.4-2016. 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
December 4, 1985
Implementation date
October 1, 1986
Scope
GB/T 5687.4-1985 is the English-translated version of 铬铁化学分析方法 中和滴定法测定氮量.
GB/T 5687.4-1985 is the Chinese national standard "Methods for chemical analysis of ferro-chromium. The neutralization titration method for the determination of nitrogen content".
It was issued on December 4, 1985 by the National Bureau of Standards, and took effect on October 1, 1986. It is obsolete: it has been replaced by GB/T 5687.4-2016.
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Document preview — GB/T 5687.4-1985
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: 1985-12-04.
Date of implementation: 1986-10-01.
Status: obsolete, replaced by GB/T 5687.4-2016.
......
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 5687.10-2006 — Ferrochromium-Determination of manganese content-Flame atomic absorption spectrometric method
GB/T 5687.2-1985 — Methods for chemical analysis of ferro-chromium--The gravimetric method for the determination of silicon content
GB/T 5687.11-2006 — Ferrochromium-Determination of titanium content-Diantipyrylmethane spectrophotometric method
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GB/T 5687.4-1985
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