GB/T 223.7-1981Determination of iron content in alloy and powder (English PDF)
GB/T 223.7 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 223.7-2002 | Iron powder - Determination of iron content - Potassium dichromate titration method | Valid |
| GB/T 223.7-1981 | Determination of iron content in alloy and powder | Obsolete |
GB/T 223.7-1981 is obsolete. It has been replaced by GB/T 223.7-2002. This page sells the obsolete edition, for projects and contracts that still cite it.
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Level / Type
National · Recommended
Scope
GB/T 223.7-1981 (Determination of iron content in alloy and powder) is available as an English-translated PDF.
GB/T 223.7-1981 is the Chinese national standard "Determination of iron content in alloy and powder". It is obsolete: it has been replaced by GB/T 223.7-2002.
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Document preview — GB/T 223.7-1981
Contents
- Document data
1 Document data
Sector: National standard (Recommended).
Status: obsolete, replaced by GB/T 223.7-2002.
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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.
Referenced standards
Cited by
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- JB/T 6031-2018Construction machinery - General specification of steel die forgings
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Related Standards
GB/T 223.8-2025 — Iron, steel and alloy — Determination of aluminium content — Titrimetric method and spectrophotometric method
GB/T 223.6-1994 — Methods for chemical analysis of iron, steel and alloy. The neutralization titrimetric method for the determination of boron content
GB/T 223.8-2000 — Methods for chemical analysis of iron, steel and alloy. The sodium fluoride separation. EDTA titration method for the determination of aluminium content
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GB/T 223.7-1981
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