GB/T 7731.15-1999Methods for chemical analysis of ferrotungsten-The flame atomic absorption spectrometric method for the determination of copper content (English PDF)
钨铁化学分析方法 火焰原子吸收光谱法测定铜量
GB/T 7731.15 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 7731.3-2008 | Ferrotungsten - Determination of copper content - Bis(cyclohexanone)oxalyldihydrazone photometric method and flame atomic absorption spectrometric method | Valid |
| GB/T 7731.15-1999 | Methods for chemical analysis of ferrotungsten-The flame atomic absorption spectrometric method for the determination of copper content | Obsolete |
GB/T 7731.15-1999 is obsolete. It has been replaced by GB/T 7731.3-2008. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
China State Bureau of Technical Supervision
Level / Type
National · Recommended
Issue date
November 5, 1999
Implementation date
August 1, 2000
Scope
GB/T 7731.15-1999 is the English-translated version of 钨铁化学分析方法 火焰原子吸收光谱法测定铜量.
GB/T 7731.15-1999 is the Chinese national standard "Methods for chemical analysis of ferrotungsten-The flame atomic absorption spectrometric method for the determination of copper content".
It was issued on November 5, 1999 by the China State Bureau of Technical Supervision, and took effect on August 1, 2000. It is obsolete: it has been replaced by GB/T 7731.3-2008.
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Document preview — GB/T 7731.15-1999
National Standard of the People's Republic of China
Issued by: China State Bureau of Technical Supervision
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Issuing body: China State Bureau of Technical Supervision.
Date of issue: 1999-11-05.
Date of implementation: 2000-08-01.
Status: obsolete, replaced by GB/T 7731.3-2008.
......
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 7731.16-1999 — Methods for chemical analysis of ferrotungsten-The flame atomic absorption spectrometric method for the determination of manganese content
GB/T 7731.14-1988 — Methods for chemical analysis of ferrotungsten--The polarographic method for the determination of lead content
GB/T 7731.17-2023 — Ferrotungsten—Determination of cobalt, nickel and aluminum contents—Inductively coupled plasma atomic emission spectrometric method
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GB/T 7731.15-1999
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