Analizat kimike të karburit të silicit në materialet e papërpunuara dhe lëndët me aftësi zjarrduruese - Pjesa 3: Përcaktimi i azotit ,oksigjenit dhe përbërësit metalik dhe përbërësit oksidik (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 (ISO 21068-3:2008)
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.
Life cycle
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PUBLISHED SSH EN ISO 21068-3:2008 60.60
Standard published 24 tet 2011
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