ISO 5997:1984

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

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ISO 5997:1984

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

PUBLISH DATE 1984
ISO 5997:1984

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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