EN 13471:2001

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Toplotnoizolacijski proizvodi za opremo stavb in industrijske inštalacije – Ugotavljanje koeficienta temperaturne razteznostiWärmedämmstoffe für die Haustechnik und für betriebstechnische Anlagen - Bestimmung des WärmeausdehnungskoeffizientenProduits isolants thermiques pour l'équipement du bâtiment et les installations industrielles - Détermination du coefficient de dilatation thermiqueThermal insulating products for building equipment and industrial installations - Determination of the coefficient of thermal expansion91.100.60Thermal and sound insulating materialsICS:Ta slovenski standard je istoveten z:EN 13471:2001SIST EN 13471:2002en01-marec-2002SIST EN 13471:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13471September 2001ICS 91.100.60English versionThermal insulating products for building equipment and industrialinstallations - Determination of the coefficient of thermalexpansionProduits isolants thermiques pour l'équipement du bâtimentet les installations industrielles - Détermination ducoefficient de dilatation thermiqueWärmedämmstoffe für die Haustechnik und fürbetriebstechnische Anlagen - Bestimmung desWärmeausdehnungskoeffizientenThis European Standard was approved by CEN on 18 August 2001.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13471:2001 ESIST EN 13471:2002

Scope.42
Normative references.43
Terms and definitions.44
Principle.55
Apparatus.56
Test specimens.77
Procedure.88
Calculation and expression of results.99
Accuracy of measurement.910
Test report.9SIST EN 13471:2002

ScopeThis European Standard specifies the equipment and procedures for determining the coefficient of linearthermal expansion. The standard is applicable to thermal insulating products within the temperature range- 196 C to 850 C, subject to the possible temperature limitation of the test specimens. It shall not beused for products which during the test experience dimensional changes due to the loss of hydrationwater or which undergo other phase changes.NOTE
Because of its small dimensions the test specimen should be carefully selected to be representative of theproduct being tested.2
Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publica-tions.These normative references are cited at the appropriate places in the text, and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this European Standard only when incorporated in it by amendment or revision. For undatedreferences the latest edition of the publication referred to applies (including amendments).EN 12085, Thermal insulating products for building applications – Determination of linear dimensions oftest specimens.3
Terms and definitionsFor the purpose of this European Standard, the following terms and definitions apply:3.1linear thermal expansionreversible changes in the length of a product resulting from a change in temperature3.2mean coefficient of linear thermal expansion m between different temperaturesreversible change in length divided by the length at the reference temperature and the temperaturedifference between the test temperatures3.3coefficient of thermal expansion t at the temperature Tlimit value of m as the higher temperature approaches the lower temperature (see Figure 1)NOTE
The definition of m and t assumes that the function giving the length variation in relation to the temperaturevariation is continuous. This excludes the use of the mean coefficient of linear thermal expansion m when the testspecimen experiences physical change due to change of phase, eg. recrystallisation or loss of water of hydration.The curve giving the length variation as a function of the temperature variation can be reported but the meancoefficient of thermal expansion should not be calculated for parts of the curve which are not continuous.SIST EN 13471:2002

PrincipleThe changes of a product’s linear dimens
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