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CEN
EN 993-12:1997

EN 993-12:1997

Current

Current

The latest, up-to-date edition.

Methods of test for dense shaped refractory products - Part 12: Determination of pyrometric cone equivalent (refractoriness)

Published date

19-03-1997

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Apparatus
6 Test pieces
7 Selection of pyrometric reference cones
8 Preparation of test stand
9 Procedure
10 Test report
Annex A (informative) Typical mould for test pieces

This European Standard specifies a method for determining the pyrometric cone equivalent (refractoriness) for refractory materials including shaped and unshaped products. Its useful range of application depends on the availability of suitable pyrometric reference cones. In the temperature range from 1500 °C to 1800 °C, the pyrometric reference cones specified in EN 993-13 are suitable. As pyrometric reference cones are primarily manufactured for estimating the effect of temperature on siliceous, low alumina fireclay and fireclay products, the results on materials other than these may not be as precise.

Committee
CEN/TC 187
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

Standards Relationship
I.S. EN 993-12:1997 Identical
BS EN 993-12:1997 Identical
SN EN 993-12 : 1997 Identical
NEN EN 993-12 : 1997 Identical
UNE-EN 993-12:1997 Identical
DIN EN 993-12:1997-06 Identical
PN EN 993-12 : 2000 Identical
NBN EN 993-12 : 1997 Identical
NF EN 993-12 : 1997 Identical
UNI EN 993-12 : 1998 Identical
NS EN 993-12 : 1ED 1997 Identical

BS EN 993-13:1995 Methods of test for dense shaped refractory products Specification for pyrometric reference cones for laboratory use
EN 993-13:1995 Methods of test for dense shaped refractory products - Part 13: Specification for pyrometric reference cones for laboratory use

ISO 565:1990 Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings
EN 993-13:1995 Methods of test for dense shaped refractory products - Part 13: Specification for pyrometric reference cones for laboratory use

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