1、BSI Standards PublicationBS EN ISO 10545-8:2014Ceramic tilesPart 8: Determination of linear thermalexpansion (ISO 10545-8:2014)BS EN ISO 10545-8:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO10545-8:2014. It supersedes BS EN ISO 10545-8:1996 which iswi
2、thdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/539, Ceramic tiles and other rigid tiling.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of
3、 a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 81947 6ICS 91.100.23Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under th
4、e authority of theStandards Policy and Strategy Committee on 30 June 2014.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 10545-8 June 2014 ICS 91.100.23 Supersedes EN ISO 10545-8:1996English Version Ceramic tiles - Part 8: Determination
5、of linear thermal expansion (ISO 10545-8:2014) Carreaux et dalles cramiques - Partie 8: Dtermination de la dilatation linique dorigine thermique (ISO 10545-8:2014) Keramische Fliesen und Platten - Teil 8: Bestimmung der linearen thermischen Dehnung (ISO 10545-8:2014) This European Standard was appro
6、ved by CEN on 7 May 2014. 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 stan
7、dards 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 n
8、otified 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,
9、 Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC
10、Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 10545-8:2014 EBS EN ISO 10545-8:2014EN ISO 10545-8:2014 (E) 3 Foreword This document (EN ISO 10545-8:2014) has been prepa
11、red by Technical Committee ISO/TC 189 “Ceramic tile“ in collaboration with Technical Committee CEN/TC 67 “Ceramic tiles” the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at
12、the latest by December 2014, and conflicting national standards shall be withdrawn at the latest by December 2014. 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 identifying an
13、y or all such patent rights. This document supersedes EN ISO 10545-8:1996. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, De
14、nmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement
15、notice The text of ISO 10545-8:2014 has been approved by CEN as EN ISO 10545-8:2014 without any modification. BS EN ISO 10545-8:2014ISO 10545-8:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Principle 13 Apparatus . 14 Test specimens 15 Procedure. 16 Expression of resul
16、ts 27 Test report . 2BS EN ISO 10545-8:2014ISO 10545-8:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical commi
17、ttees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the I
18、nternational Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
19、different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO
20、shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this documen
21、t is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (T
22、BT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 189, Ceramic tile.This second edition cancels and replaces the first edition (ISO 10545-8:1994), which has been technically revised.ISO 10545 consists of the following parts, under th
23、e general title Ceramic tiles: Part 1: Sampling and basis for acceptance Part 2: Determination of dimensions and surface quality Part 3: Determination of water absorption, apparent porosity, apparent relative density and bulk density Part 4: Determination of modulus of rupture and breaking strength
24、Part 5: Determination of impact resistance by measurement of coefficient of restitution Part 6: Determination of resistance to deep abrasion for unglazed tiles Part 7: Determination of resistance to surface abrasion for glazed tiles Part 8: Determination of linear thermal expansion Part 9: Determina
25、tion of resistance to thermal shock Part 10: Determination of moisture expansion Part 11: Determination of crazing resistance for glazed tiles Part 12: Determination of frost resistance Part 13: Determination of chemical resistance Part 14: Determination of resistance to stainsiv ISO 2014 All rights
26、 reservedBS EN ISO 10545-8:2014ISO 10545-8:2014(E) Part 15: Determination of lead and cadmium given off by glazed tiles Part 16: Determination of small colour differences ISO 2014 All rights reserved vBS EN ISO 10545-8:2014BS EN ISO 10545-8:2014Ceramic tiles Part 8: Determination of linear thermal e
27、xpansion1 ScopeThis part of ISO 10545 defines a test method for determining the coefficient of linear thermal expansion of ceramic tiles.2 PrincipleDetermination of the linear thermal expansion coefficient for the temperature range from ambient temperature to 100 C.3 Apparatus3.1 Suitable thermal ex
28、pansion apparatus, capable of a rate of heating of (5 1) C/min with uniform distribution of heat. Certain types of apparatus require a soaking time at 100 C.3.2 Vernier calipers, or other suitable device.3.3 Drying oven, capable of being operated at (110 5) C. Microwave, infrared or other drying sys
29、tems may be used provided that it has been determined that equal results are obtained.3.4 Desiccator4 Test specimensCut two test specimens at right angles from the central portion of one tile so that their lengths are suitable for the apparatus. The ends of the test specimens shall be ground flat an
30、d parallel.If necessary, grind the test specimens so that the length of any side in cross-section is less than 6 mm and the area of cross-section is greater than 10 mm2. The minimum length of the test specimens should be 25 mm. In the case of glazed tiles, the glaze shall not be ground off the test
31、specimens.5 ProcedureIt is necessary to make a previous calibration of the apparatus with a standard test specimen. The dimensions of the standard test specimen shall be the same as the dimensions of the test specimen.Dry the test specimens at (110 5) C until they reach constant mass, i.e. when the
32、difference between two successive weightings at intervals of 24 h is less than 0,1 %. Allow them to cool in the desiccator (3.4) at ambient temperature.Using vernier calipers (3.2), determine the lengths to an accuracy of 0,002 times the length.Place a test specimen in the apparatus (3.1) and record
33、 the ambient temperature.INTERNATIONAL STANDARD ISO 10545-8:2014(E) ISO 2014 All rights reserved 1BS EN ISO 10545-8:2014ISO 10545-8:2014(E)Initially, and throughout the heating procedure, measure the length to an accuracy of 0,01 mm. Take temperature and length measurements at temperature intervals
34、of no more than 15 C.The rate of heating shall be (5 1) C/min.6 Expression of resultsThe linear thermal expansion coefficient, l, is expressed in 106per degree Celsius (106/C), to the first decimal place, in accordance with the expression:lLxLT=1owhereLois the length of the test specimen at the ambi
35、ent temperature;L is the increase in length of the test specimen between ambient temperature and 100 C;T is the rise in temperature.7 Test reportThe test report shall specify the following:a) reference to this part of ISO 10545, i.e. ISO 10545-8;b) a description of the tiles, including sample prepar
36、ation;c) the linear thermal expansion coefficient for both test specimens.2 ISO 2014 All rights reservedBS EN ISO 10545-8:2014This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publication
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