SIST EN 12614:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.PHURYProdukte und Systeme für den Schutz und die Instandsetzung von Betontragwerken - Prüfverfahren - Bestimmung der Glasübergangstemperatur von PolymerenProduits et systemes pour la protection et la réparation des structures en béton - Méthodes d'essais - Détermination de la température de transition vitreuse des polymeresProducts and systems for the protection and repair of concrete structures - Test methods - Determination of glass transition temperatures of polymers91.080.40Betonske konstrukcijeConcrete structuresICS:Ta slovenski standard je istoveten z:EN 12614:2004SIST EN 12614:2004en01-december-2004SIST EN 12614:2004SLOVENSKI
STANDARD



SIST EN 12614:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12614October 2004ICS 91.080.40 English versionProducts and systems for the protection and repair of concretestructures - Test methods - Determination of glass transitiontemperatures of polymersProduits et systèmes pour la protection et la réparation desstructures en béton - Méthodes d'essai - Détermination dela température de transition vitreuseProdukte und Systeme für den Schutz und dieInstandsetzung von Betontragwerken - Prüfverfahren -Bestimmung der Glasübergangstemperatur von PolymerenThis European Standard was approved by CEN on 27 February 2004.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 Central Secretariat 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12614:2004: ESIST EN 12614:2004



EN 12614:2004 (E)
2 Contents page Foreword.3 1 Scope.4 2 Terms and definitions.4 3 Test principle.4 4 General requirements for testing.5 4.1 Apparatus.5 4.2 Calibration of the temperature scale of the apparatus.5 5 Preparation of sample.6 5.1 General.6 5.2 Powdered or granular sample.6 5.3 Moulded or pelleted samples.6 5.4 Film or sheet samples.6 6 Test procedure.6 7 Test report.9
SIST EN 12614:2004



EN 12614:2004 (E) 3 Foreword This document (EN 12614:2004) has been prepared by Technical Committee CEN /TC 104, "Concrete and related products", the secretariat of which is held by DIN. It has been elaborated by Sub-Committee 8 "Products and systems for the protection and repair of concrete structures" (Secretariat AFNOR). 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 April 2005, and conflicting national standards shall be withdrawn at the latest by April 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 12614:2004



EN 12614:2004 (E)
4 1 Scope This document covers a test method for the determination of glass transition temperature (GTT) of polymers by differential scanning calorimetry (DSC) or differential thermal analysis (DTA). This test method is applicable to polymers in granular form (below 60 mesh, < 250 µ, avoiding grinding if possible) or to any fabricated shape from which appropriate samples can be cut. This test method is useful for specification acceptance. This test method determines the structural behaviour of a polymer according to the variations of temperatures. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 differential scanning calorimetry (DSC) differential scanning calorimetry can be carried out according to two principles, depending on the method of measurement used Power compensation differential scanning calorimetry records in function of time or temperature the required power to maintain a zero temperature difference between the polymer and an inert reference, when they are subjected to a controlled temperature program (Power-compensation DSC). Heat-flux differential scanning calorimetry records in function of time or temperature the difference of heat-flux diffusing between the sample holder, the reference holder and the testing unit of the equipment (Heat-flux DSC). For the two principles, the recording chart gives a DSC curve with, at the Y-axis, the heat flow and, at the X-axis, the temperature or time. 2.2 differential thermal analysis (DTA) differential thermal analysis records the temperature difference between the polymer sample and an inert reference, while they are subjected to a controlled temperature program The recording chart gives a DTA curve with, at the Y-axis, the temperature difference between the sample and the reference and, at the X-axis, the temperature or time. 3 Test principle The test method consists of heating or cooling the sample at a controlled rate in a controlled atmosphere. A suitable sensing device monitors continuously:  te
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