Reference number
ISO 21068-3:2008
© ISO 2025
ISO 21068-3:2008
Chemical analysis of silicon-carbide-containing raw materials and refractory products — Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
Edition 1
2008-08
Withdrawn
Withdrawn (Edition 1, 2008)

Abstract

ISO 21068-3:2008 specifies methods for the determination of total nitrogen and nitrogen calculated as silicon nitride, total oxygen, and free metallic and oxidic components in silicon carbide raw materials and refractory products.

It applies only to silicon carbide materials that are not bonded with nitrogen. Nitride-bonded silicon carbide refractories are covered in EN 12698-1.

General information

  • Status
     : Withdrawn
    Publication date
     : 2008-08
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 37
  • Technical Committee :
    ISO/TC 33
    ICS :
    81.080 
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This standard contributes to the following Sustainable Development Goal

9
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