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BS EN ISO 21068-3:2008

Current
Current

The latest, up-to-date edition.

Chemical analysis of silicon-carbide-containing raw materials and refractory products Determination of nitrogen, oxygen and metallic and oxidic constituents
Published date

30-09-2008

Publisher

British Standards Institution

This part of ISO21068 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 EN12698-1.

Committee
RPI/1
DevelopmentNote
Supersedes 06/30159551 DC. (10/2008) Reviewed & Confirmed by BSI, July 2017. (06/2017)
DocumentType
Standard
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 21068-3:2008 Identical
EN ISO 21068-3:2008 Identical

ISO 10081-1:2003 Classification of dense shaped refractory products Part 1: Alumina-silica
ISO 21587-1:2007 Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) Part 1: Apparatus, reagents, dissolution and gravimetric silica
ISO 21079-3:2008 Chemical analysis of refractories containing alumina, zirconia, and silica — Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) — Part 3: Flame atomic absorption spectrophotometry (FAAS) and inductively coupled plasma emission spectrometry (ICP -AES)
ISO 21587-3:2007 Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) Part 3: Inductively coupled plasma and atomic absorption spectrometry methods
ISO 12677:2011 Chemical analysis of refractory products by X-ray fluorescence (XRF) Fused cast-bead method
EN 12698-1:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods
ISO 21079-2:2008 Chemical analysis of refractories containing alumina, zirconia, and silica — Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) — Part 2: Wet chemical analysis
ISO 21587-2:2007 Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) Part 2: Wet chemical analysis
ISO 10081-4:2014 Classification of dense shaped refractory products Part 4: Special products
ISO 10081-3:2003 Classification of dense shaped refractory products Part 3: Basic products containing from 7 % to 50 % residual carbon
ISO 1927:1984 Prepared unshaped refractory materials (dense and insulating) Classification
ISO 10060:1993 Dense, shaped refractory products Test methods for products containing carbon
ISO 21068-2:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Part 2: Determination of loss on ignition, total carbon, free carbon and silicon carbide, total and free silica and total and free silicon
ISO 21068-1:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Part 1: General information and sample preparation
ISO 10081-2:2003 Classification of dense shaped refractory products Part 2: Basic products containing less than 7 % residual carbon
EN 725-3:2007 Advanced technical ceramics - Methods of test for ceramic powders - Part 3: Determination of the oxygen content of non-oxides by thermal extraction with a carrier gas
ISO 26845:2008 Chemical analysis of refractories General requirements for wet chemical analysis, atomic absorption spectrometry (AAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) methods
ISO 21079-1:2008 Chemical analysis of refractories containing alumina, zirconia and silica — Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) — Part 1: Apparatus, reagents and dissolution

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