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ISO 5997:1984

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

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Kehtiv alates 01.11.1984
Tegevusala (ICS grupid)
73.060.30 Kroomimaagid
Direktiivid või määrused
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
01.11.1984
Põhitekst
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.

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