EN 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 21068-2:2008)

ISO 21068-2:2008 specifies analytical techniques for the determination of change in mass by thermal treatment at specified temperatures, and methods for the determination of the total carbon content, free carbon, silicon carbide, silicon, total silica and free silica content of silicon-carbide-containing raw materials and refractory products.

Chemische Analyse von Siliciumcarbid enthaltenden Rohstoffen und feuerfesten Erzeugnissen - Teil 2: Bestimmung des Glühverlustes und Gehaltes an Gesamtkohlenstoff, freiem Kohlenstoff und Siliciumcarbid, des Gehaltes an gesamtem und freiem Silicium(IV)-oxid sowie an gesamtem und freiem Silicium (ISO 21068-2:2008)

Dieser Teil von ISO 21068 legt die Analysenverfahren für die Bestimmung der Massenänderung durch Wärmebehandlung bei festgelegten Temperaturen sowie Verfahren für die Bestimmung des Gehaltes an Gesamtkohlenstoff, freiem Kohlenstoff und Siliciumcarbid, des Gehaltes an gesamtem und freiem Silicium(IV) oxid sowie an gesamtem und freiem Silicium von Siliciumcarbid enthaltenden Rohstoffen und feuerfesten Erzeugnissen fest.

Analyse chimique des matières premières et des produits réfractaires contenant du carbure de silicium - Partie 2: Détermination de la perte au feu, du carbone total, du carbone libre et du carbure de silicium, de la silice totale et libre, et du silicium total et libre (ISO 21068-2:2008)

L'ISO 21068-2:2008 spécifie des techniques d'analyse permettant de déterminer la variation de masse apportée par un traitement thermique à des températures spécifiées ainsi que des méthodes permettant de déterminer la teneur totale en carbone, ainsi que la teneur en carbone libre, carbure de silicium, silicium, silice totale et en silice libre de carbure de calcium contenant des matières premières et des produits réfractaires.

Kemijska analiza surovin in ognjevzdržnih izdelkov s silicijevim karbidom - 2. del: Določevanje ostanka po žarenju, celokupnega ogljika, prostega ogljika in silicijevega karbida, celokupne in proste silike in celokupnega in prostega silicija (ISO 21068-2:2008)

General Information

• Status: Published
• Publication Date: 31-Jul-2008
• Withdrawal Date: 27-Feb-2009
• ICS: 81.080 - Refractories
• Technical Committee: CEN/TC 187 - Refractory products and materials
• Drafting Committee: CEN/TC 187/WG 4 - Chemical analysis
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-Aug-2008
• Due Date: 22-Mar-2009
• Completion Date: 01-Aug-2008
• Ref Project: SIST EN 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 21068-2:2008)

Relations

• Revised: FprEN ISO 21068-2 - Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free and surface silica (ISO/FDIS 21068-2:2024)
• Effective Date: 17-Nov-2021

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 21068-2:2008
01-december-2008
.HPLMVNDDQDOL]DVXURYLQLQRJQMHY]GUåQLKL]GHONRYVVLOLFLMHYLPNDUELGRPGHO
'RORþHYDQMHRVWDQNDSRåDUHQMXFHORNXSQHJDRJOMLNDSURVWHJDRJOMLNDLQ
VLOLFLMHYHJDNDUELGDFHORNXSQHLQSURVWHVLOLNHLQFHORNXSQHJDLQSURVWHJDVLOLFLMD
,62
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 21068-2:2008)
Chemische Analyse von Siliciumcarbid enthaltenden Rohstoffen und feuerfesten
Erzeugnissen - Teil 2: Bestimmung des Glühverlustes und Gehaltes an
Gesamtkohlenstoff, freiem Kohlenstoff und Siliciumcarbid, des Gehaltes an gesamtem
und freiem Silicium(IV)-oxid sowie an gesamtem und freiem Silicium (ISO 21068-2:2008)
Analyse chimique des matières premières et des produits réfractaires contenant du
carbure de silicium - Partie 2: Détermination de la perte au feu, du carbone total, du
carbone libre et du carbure de silicium, de la silice totale et libre, et du silicium total et
libre (ISO 21068-2:2008)
Ta slovenski standard je istoveten z: EN ISO 21068-2:2008
ICS:
81.080 Ognjevzdržni materiali Refractories
SIST EN ISO 21068-2:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 21068-2:2008

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SIST EN ISO 21068-2:2008
EUROPEAN STANDARD
EN ISO 21068-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2008
ICS 81.080

English Version
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 21068-2:2008)
Analyse chimique des matières premières et des produits Chemische Analyse von Siliciumcarbid enthaltenden
réfractaires contenant du carbure de silicium - Partie 2: Rohstoffen und feuerfesten Erzeugnissen - Teil 2:
Détermination de la perte au feu, du carbone total, du Bestimmung des Glühverlustes und Gehaltes an
carbone libre et du carbure de silicium, de la silice totale et Gesamtkohlenstoff, freiem Kohlenstoff und Siliciumcarbid,
libre, et du silicium total et libre (ISO 21068-2:2008) des Gehaltes an gesamtem und freiem Silicium(IV)-oxid
sowie an gesamtem und freiem Silicium (ISO 21068-
2:2008)
This European Standard was approved by CEN on 11 July 2008.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21068-2:2008: E
worldwide for CEN national Members.

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SIST EN ISO 21068-2:2008
EN ISO 21068-2:2008 (E)
Contents Page
Foreword.3

2

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SIST EN ISO 21068-2:2008
EN ISO 21068-2:2008 (E)
Foreword
This document (EN ISO 21068-2:2008) has been prepared by Technical Committee ISO/TC 33 "Refractories"
in collaboration with Technical Committee CEN/TC 187 “Refractory products and materials” the secretariat of
which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by February 2009, and conflicting national standards shall be withdrawn
at the latest by February 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifyin
...