GB/T 8639.4-1988 abolished_transferred National standards

GB/T 8639.4-1988 Vanadium—Determination of iron content—Phenanthrline spectrophotometric method

Publish Date: 1988-02-08 Implement Date: 1989-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 8639.4-1988

Standard Type: National standards

Standard Status: abolished_transferred

is_force_gb: no

CCS Name: Analysis methods for rare metals and their alloys

ICS Name: Cadmium, cobalt, and their alloys

Publish Date: 1988-02-08

Implement Date: 1989-01-01

Publisher: National Standards Bureau

Pages: 4 pages

Development Information

Drafting Units:

Jinzhou Ferroalloy Plant

Drafting Persons:

Dai Xiuying and Ge Shunying

Word Count: 4 Thousand words Pages: 4 pages

Same series standard

GB/T 8639.1-1988 Vanadium—Determination of vanadium content—Potassium permanganate-ammonium ferrous sulphate volumetric method GB/T 8639.2-1988 Vanadium—Determination of chromium content—Diphenylcarbazide spectrophotometric method GB/T 8639.3-1988 Vanadium—Determination of aluminium content—CAS-TPC spectrophotometric method GB/T 8639.5-1988 Vanadium—Determination of iron content—Isoamyl alcohol extraction spectrophotometric method GB/T 8639.6-1988 Vanadium—Determination of silicon content—N-butyl alcohol extraction spectrophotometric method GB/T 8639.7-1988 Vanadium—Determination of oxygen content—Impulse fusion-gas chromatographic method

Superseded by the following standards

YS/T 540.4-2006 Vanadium--Determination of iron content--Phenanthroline spectrophotometric method

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