GB/T 20975.20-2008Methods for chemical analysis of aluminium and aluminium alloys - Part 20: Determination of gallium content - Butyrhodamine B spectrophotometric method (English PDF)
铝及铝合金化学分析方法 第20部分：镓含量的测定 丁基罗丹明B分光光度法
GB/T 20975.20 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 20975.20-2020 | Methods for chemical analysis of aluminium and aluminium alloys - Part 20: Determination of gallium content - Butyrhodamine B spectrophotometric method | Valid |
| GB/T 20975.20-2008 | Methods for chemical analysis of aluminium and aluminium alloys - Part 20: Determination of gallium content - Butyrhodamine B spectrophotometric method | Obsolete |
GB/T 20975.20-2008 is obsolete. It has been replaced by GB/T 20975.20-2020. 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
March 31, 2008
Implementation date
September 1, 2008
Scope
GB/T 20975.20-2008 is the English-translated version of 铝及铝合金化学分析方法 第20部分：镓含量的测定 丁基罗丹明B分光光度法.
GB/T 20975.20-2008 is the Chinese national standard "Methods for chemical analysis of aluminium and aluminium alloys - Part 20: Determination of gallium content - Butyrhodamine B spectrophotometric method".
It was issued on March 31, 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 September 1, 2008. It is obsolete: it has been replaced by GB/T 20975.20-2020.
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Document preview — GB/T 20975.20-2008
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: 2008-03-31.
Date of implementation: 2008-09-01.
Status: obsolete, replaced by GB/T 20975.20-2020.
......
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 20975.21-2020 — Methods for chemical analysis of aluminium and aluminium alloy—Part 21: Determination of calcium content
GB/T 20975.19-2008 — Methods for chemical analysis of aluminium and aluminium alloys - Part 19: Determination of zirconium content
GB/T 20975.21-2008 — Methods for chemical analysis of aluminium and aluminium alloys - Part 21: Determination of calcium content - Flame atomic absorption spectrometric method
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GB/T 20975.20-2008
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