GB/T 4375.4-1984Methods for chemical analysis of gallium--The 4, 7-diphenyl-1, 10-phenanthroline photometric method for the determination of iron content (English PDF)
镓化学分析方法 4，7-二苯基-1，10-二氮杂菲光度法测定铁量
GB/T 4375.4 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 4375.4-1984 | Methods for chemical analysis of gallium--The 4, 7-diphenyl-1, 10-phenanthroline photometric method for the determination of iron content | Obsolete |
GB/T 4375.4-1984 is obsolete. 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
April 30, 1984
Implementation date
April 1, 1985
Scope
GB/T 4375.4-1984 is the English-translated version of 镓化学分析方法 4，7-二苯基-1，10-二氮杂菲光度法测定铁量.
GB/T 4375.4-1984 is the Chinese national standard "Methods for chemical analysis of gallium--The 4, 7-diphenyl-1, 10-phenanthroline photometric method for the determination of iron content".
It was issued on April 30, 1984 by the National Bureau of Standards, and took effect on April 1, 1985. It is obsolete: it has been withdrawn.
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Document preview — GB/T 4375.4-1984
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: 1984-04-30.
Date of implementation: 1985-04-01.
Status: obsolete, withdrawn.
......
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 4375.5-1984 — Methods for chemical analysis of gallium--The N2O-C2H2flame atomic absorption spectrophotometric method for the determination of calcium content
GB/T 4375.3-1984 — Methods for chemical analysis of gallium--The chromazurol S-tetradecyl pyridine bromide photometric method for the determination of aluminum content
GB/T 4375.6-1984 — Methods for chemical analysis of gallium--The salicylfluorone cetyl trimethyl ammonium bromide photometric method for the determination of tin content
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GB/T 4375.4-1984
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