Obsolete

GB/T 6901.4-2004Chemical analysis of silica refractories - Part 4: Determination of iron oxide-o-phenanthroline photometric method (English PDF)

质耐火材料化学分析方法第4部分：邻二氮杂菲光度法测定氧化铁量

GB/T 6901.4 | Evolution and historical versions

Std ID	Title	Status
GB/T 6901-2008	Chemical analysis of silica refractories	Obsolete
GB/T 6901.4-2004	Chemical analysis of silica refractories - Part 4: Determination of iron oxide-o-phenanthroline photometric method	Obsolete

GB/T 6901.4-2004 is obsolete. It has been replaced by GB/T 6901-2008. 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

January 19, 2004

Implementation date

July 1, 2004

Scope

GB/T 6901.4-2004 is the English-translated version of 质耐火材料化学分析方法第4部分：邻二氮杂菲光度法测定氧化铁量.

GB/T 6901.4-2004 is the Chinese national standard "Chemical analysis of silica refractories - Part 4: Determination of iron oxide-o-phenanthroline photometric method".

It was issued on January 19, 2004 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 July 1, 2004. It is obsolete: it has been replaced by GB/T 6901-2008.

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Document preview — GB/T 6901.4-2004

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

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: 2004-01-19.

Date of implementation: 2004-07-01.

Status: obsolete, replaced by GB/T 6901-2008.

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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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