DIN EN ISO 21068-2:2008-12
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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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)
Hardcopy , PDF
01-11-2024
English, German
01-12-2008
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Vorwort
Einleitung
1 Anwendungsbereich
2 Normative Verweisungen
3 Begriffe
4 Bestimmung der Massenänderung
4.1 Allgemeines
4.2 Bestimmung des Trocknungsverlustes bei
250 grad C (LOD[250]), gravimetrisches Verfahren
4.3 Bestimmung des Verlustes bei Kalzinierung
in Argon (LOI[Ar])
4.4 Bestimmung der Massenänderung durch
Wärmevorbehandlung in Luft
4.5 Bestimmung der Massenänderung bei
750 grad C (LOI[750])
4.6 Bestimmung des Glühverlustes bei
850 grad C (LOI[850])
4.7 Bestimmung des Glühverlustes bei
1 050 grad C (LOI[1 050])
5 Bestimmung des Gehaltes an Gesamtkohlenstoff
5.1 Allgemeines
5.2 Verbrennungsverfahren
5.3 Messverfahren
5.4 Messverfahren
6 Bestimmung des freien Kohlenstoffs
6.1 Allgemeines
6.2 Probenaufschluss durch Verbrennung
6.3 Nachweisverfahren
6.4 Direkte Nachweisverfahren
6.5 Indirekte Nachweisverfahren
6.6 Direkte Bestimmung des freien Kohlenstoffs
durch nasschemische Oxidation
7 Bestimmung des Gehaltes an Siliciumcarbid, SiC
7.1 Allgemeines
7.2 Bestimmung des Siliciumcarbids, SiC, durch
indirektes quantitatives Verfahren
7.3 Bestimmung des Siliciumcarbids, SiC, durch
direktes quantitatives Verfahren
7.4 Bestimmung des Siliciumcarbids, SiC, durch
Glühen bei 750 grad C
7.5 Bestimmung des Siliciumcarbids, SiC, durch
ein chemisches Verfahren
8 Bestimmung des Gehaltes an Gesamtsilicium
aus Silicium(IV)-oxid
8.1 Kurzbeschreibung
8.2 Reagenzien
8.3 Geräte
8.4 Durchführung
8.5 Blindwertbestimmung
8.6 Berechnung
9 Bestimmung des freien Siliciumgehaltes
9.1 Kurzbeschreibung
9.2 Vorbehandlung mit Salzsäure
9.3 Bestimmung des Siliciums durch
Wasserstoffentwicklung
9.4 Bestimmung des Siliciums durch
Silberverdrängung
10 Bestimmung des Gehaltes an Silicium(IV)-oxid, SiO[2]
10.1 Allgemeines
10.2 Bestimmung des Gehaltes an freiem und/oder
kombiniertem Silicium(IV)-oxid, SiO[2]
10.3 Bestimmung des Gehaltes an freiem
Siliciumdioxid, SiO[2]
10.4 Bestimmung des Gehaltes an anhaftendem
Siliciumdioxid, SiO[2]surf
11 Angabe der Ergebnisse
12 Prüfbericht
Anhang A (informativ) Beispiele von ZRMs zur
Kalibrierung eines Kohlenstoff-Prüfgerätes
Literaturhinweise
Describes 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.
| DevelopmentNote |
Supersedes DIN 51075-1, DIN 51075-2, DIN 51075-3, DIN 51075-4, DIN 51075-5 & DIN 51076-1. (12/2008)
|
| DocumentType |
Standard
|
| Pages |
57
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 21068-2:2008 | Identical |
| EN ISO 21068-2:2008 | Identical |
| DIN EN ISO 21068-1:2008-12 | Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 1: General information and sample preparation (ISO 21068-1:2008) |
| DIN EN ISO 21068-3:2008-12 | 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) |
| DIN EN ISO 1927-3:2013-03 | MONOLITHIC (UNSHAPED) REFRACTORY MATERIALS - PART 3: CHARACTERIZATION AS RECEIVED (ISO 1927-3:2012) |
| DIN EN ISO 12677:2013-02 | Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead method (ISO 12677:2011) |
| DIN ISO 5725-2:2002-12 | Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method (ISO 5725-2:1994 including Technical Corrigendum 1:2002) |
| ISO 10081-1:2003 | Classification of dense shaped refractory products — Part 1: Alumina-silica |
| EN 12698-1:2007 | Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods |
| ISO 9286:1997 | Abrasive grains and crude Chemical analysis of silicon carbide |
| 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 21068-1:2008 | Chemical analysis of silicon-carbide-containing raw materials and refractory products — Part 1: General information and sample preparation |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 10081-2:2003 | Classification of dense shaped refractory products — Part 2: Basic products containing less than 7 % residual carbon |
| DIN EN ISO 21068-1:2008-12 | Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 1: General information and sample preparation (ISO 21068-1:2008) |
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