GB/T 223.66-1989Methods for chemical analysis of iron, steel and alloy - The thiocyanate-chlorpromazine hydrochloride-chloroform extraction photometric method for the determination of tungsten content (English PDF)
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Issued by
State Bureau of Technical Supervision
Level / Type
National · Recommended
Issue date
March 31, 1989
Implementation date
July 1, 1990
Scope
GB/T 223.66-1989 (Methods for chemical analysis of iron, steel and alloy - The thiocyanate-chlorpromazine hydrochloride-chloroform extraction photometric method for the determination of tungsten content) is available as an English-translated PDF.
GB/T 223.66-1989 — This standard specifies the thiocyanate - chlorpromazine hydrochloride - chloroform extraction spectrophotometric determination of tungsten content.
This standard applies to carbon steel, measuring the amount of tungsten in low alloy steel. Measurement range 0. 0020% to 0.
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Document preview — GB/T 223.66-1989
National Standard of the People's Republic of China
- ICS
- 77.08
- Classification
- H 11
Issued by: State Bureau of Technical Supervision
Contents
- What this standard covers1
- Document data2
What this standard covers
This standard specifies the thiocyanate - chlorpromazine hydrochloride - chloroform extraction spectrophotometric determination of tungsten content. This standard applies to carbon steel, measuring the amount of tungsten in low alloy steel. Measurement range 0. 0020% to 0. 100%.
Document data
International classification (ICS): 77.08.
Chinese classification (CCS): H11.
Estimated length of the Chinese original: 6,665 words.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 4 pages — is available in the English PDF.
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GB/T 223.66-1989
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