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ISO 5997:1984

Chromium ores and concentrates — Determination of silicon content — Molecular absorption spectrometric method and gravimetric method

Nov 1, 1984

General information

90.60     Jun 5, 2021

ISO

ISO/TC 132

International Standard

73.060.30  

French   English  

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Scope

The molecular absorption spectrometric method (A) is applicable to products having silicon contents from 0,05 to 0,5 % (m/m), the gravimetric method (B) is applicable to products having silicon contents from 0,5 to 15 % (m/m). ISO 5997 should be read in conjunction with ISO 4297. Specifies among other things principle, reagents, apparatus, procedure, spectrometric measurement (method A only) and expression of results.

Life cycle

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PUBLISHED
ISO 5997:1984
90.60 Close of review
Jun 5, 2021

National adoptions

SSH ISO 5997:1984  
DPS

Chromium ores and concentrates — Determination of silicon content — Molecular absorption spectrometric method and gravimetric method

60.60 Standard published

DPS/KT 133 more

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