Methods of test for dense shaped refractory products - Part 5: Determination of cold crushing strength

This document specifies a method of determination of the cold crushing strength of dense shaped refractory products.

Prüfverfahren für dichte geformte feuerfeste Erzeugnisse - Teil 5: Bestimmung der Kaltdruckfestigkeit

Dieses Dokument legt ein Verfahren zur Bestimmung der Kaltdruckfestigkeit von dichten geformten feuerfesten Erzeugnissen fest.

Méthodes d'essai pour produits réfractaires façonnés denses - Partie 5: Détermination de la résistance à l'écrasement

Ce document spécifie une méthode de détermination de la résistance à l’écrasement à température ambiante des produits réfractaires façonnés denses.

Metode za preskušanje gostih oblikovanih ognjevzdržnih izdelkov - 5. del: Ugotavljanje tlačne trdnosti ob porušitvi pri sobni temperaturi

Ta del standarda EN 993 določa metodo za ugotavljanje tlačne trdnosti ob porušitvi pri sobni temperaturi gostih oblikovanih ognjevzdržnih izdelkov.

General Information

Status
Published
Publication Date
04-Dec-2018
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
05-Dec-2018
Completion Date
05-Dec-2018

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SLOVENSKI STANDARD
SIST EN 993-5:2019
01-februar-2019
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SIST EN 993-5:2000
0HWRGH]DSUHVNXãDQMHJRVWLKREOLNRYDQLKRJQMHY]GUåQLKL]GHONRYGHO
8JRWDYOMDQMHWODþQHWUGQRVWLRESRUXãLWYLSULVREQLWHPSHUDWXUL

Methods of test for dense shaped refractory products - Part 5: Determination of cold

crushing strength

Prüfverfahren für dichte geformte feuerfeste Erzeugnisse - Teil 5: Bestimmung der

Kaltdruckfestigkeit

Méthodes d'essai pour produits réfractaires façonnés denses - Partie 5: Détermination

de la résistance à l'écrasement
Ta slovenski standard je istoveten z: EN 993-5:2018
ICS:
81.080 Ognjevzdržni materiali Refractories
SIST EN 993-5:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 993-5:2019
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SIST EN 993-5:2019
EN 993-5
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2018
EUROPÄISCHE NORM
ICS 81.080 Supersedes EN 993-5:1998
English Version
Methods of test for dense shaped refractory products -
Part 5: Determination of cold crushing strength

Méthodes d'essai pour produits réfractaires façonnés Prüfverfahren für dichte geformte feuerfeste

denses - Partie 5: Détermination de la résistance à Erzeugnisse - Teil 5: Bestimmung der

l'écrasement Kaltdruckfestigkeit
This European Standard was approved by CEN on 5 October 2018.

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-CENELEC 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-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 993-5:2018 E

worldwide for CEN national Members.
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SIST EN 993-5:2019
EN 993-5:2018 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Principle ............................................................................................................................................................. 5

5 Apparatus ........................................................................................................................................................... 6

6 Test pieces ......................................................................................................................................................... 6

6.1 Geometry of the test piece ........................................................................................................................... 6

6.2 Number of test pieces .................................................................................................................................... 7

6.3 Test piece preparation and verification ................................................................................................. 7

7 Procedure........................................................................................................................................................... 7

8 Expression of results ...................................................................................................................................... 8

9 Test report ......................................................................................................................................................... 8

10 Precision and bias ........................................................................................................................................... 9

10.1 Interlaboratory study .................................................................................................................................... 9

10.2 Precision data ................................................................................................................................................... 9

10.2.1 Repeatability ..................................................................................................................................................... 9

10.2.2 Reproducibilty ................................................................................................................................................. 9

10.2.3 Bias ....................................................................................................................................................................... 9

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SIST EN 993-5:2019
EN 993-5:2018 (E)
European foreword

This document (EN 993-5:2018) has been prepared by 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 June 2019, and conflicting national standards shall be

withdrawn at the latest by June 2019.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 993-5:1998.

Reproducibility and repeatability data are available only for a limited number of testing methods and

materials, but may be complemented in subsequent edition.

The series of standards EN 993 'Methods of test for dense shaped refractory products' consists of 20

Parts, some of which have been withdrawn and replaced by equivalent standards:
— Part 1: Determination of bulk density and porosity
— Part 2: Determination of true density
— Part 3: Test methods for carbon-containing refractories
— Part 4: Determination of permeability to gases
— Part 5: Determination of cold crushing strength
— Part 6: Determination of modulus rupture, ambient temperatures
— Part 7: Determination of modulus of rupture, elevated temperatures

— Part 8: Determination of refractoriness-under-load – withdrawn – replaced by EN ISO 1893

— Part 9: Determination of creep in compression
— Part 10: Determination of permanent change in dimensions on heating
— Part 11: Determination of resistance to thermal shock (ENV)
— Part 12: Determination of pyrometric cone equivalent
— Part 13: Specification for pyrometric cones

— Part 14: Determination of thermal conductivity (hot wire, cross-array) – withdrawn – replaced by

EN ISO 8894-1
— Part 15: Determination of thermal conductivity (hot wire, parallel)
— Part 16: Determination of resistance to acids
— Part 17: Determination of bulk density of granular material (mercury method)
— Part 18: Determination of bulk density of granular material (water method)
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SIST EN 993-5:2019
EN 993-5:2018 (E)
— Part 19: Determination of thermal expansion by a differential method

— Part 20: Determination of resistance to abrasion at ambient temperature – withdrawn – replaced by

EN ISO 16282

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
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SIST EN 993-5:2019
EN 993-5:2018 (E)
1 Scope

This document specifies a method of determination of the cold crushing strength of dense shaped

refractory products.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 13385-1, Geometrical product specifications (GPS) — Dimensional measuring equipment — Part 1:

Callipers; Design and metrological characteristics
ISO 5022, Shaped refractory products — Sampling and acceptance testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
cold crushing strength

maximum load per unit area, applied under specified conditions at room temperature, that a refractory

product will withstand before failure occurs
3.2
dense shaped refractory product

product with specific dimensions, having a true porosity of less than 45 % by volume, when measured

in accordance with EN 993-1
3.3
sample

representative collection of items that can be obtained by sampling in accordance with ISO 5022

3.4
item
refractory brick or shape
3.5
test piece

piece of material extracted from an item (3.4) and suitably shaped and prepared for the test

4 Principle

A test piece of known dimensions is subjected under specified conditions to a steadily increasing

compressive load until its failure, when it cannot support a further increase in load. The cold crushing

strength is calculated from the maximum load indicated at failure and the mean cross-sectional area

over which the load is applied.
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SIST EN 993-5:2019
EN 993-5:2018 (E)
5 Apparatus
5.1 A mecha
...

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