BS EN 12614-2004 Products and systems for the protection and repair of concrete structures - Test methods - Determination of glass transition temperatures of polymers.pdf
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1、BRITISH STANDARD BS EN 12614:2004 Products and systems for the protection and repair of concrete structures Test methods Determination of glass transition temperatures of polymers The European Standard EN 12614:2004 has the status of a British Standard ICS 91.080.40 ? BS EN 12614:2004 This British S
2、tandard was published under the authority of the Standards Policy and Strategy Committee on 14 October 2004 BSI 14 October 2004 ISBN 0 580 44592 5 National foreword This British Standard is the official English language version of EN 12614:2004. The UK participation in its preparation was entrusted
3、by Technical Committee B/517, Concrete, to Subcommittee B/517/8, Protection and repair of concrete structures, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement
4、 international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “ International Standards Correspondence Index” , or by using the “ Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does
5、 not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European
6、 committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages
7、2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12614 October 2004 ICS 91.080.40 English version Products and syste
8、ms for the protection and repair of concrete structures - Test methods - Determination of glass transition temperatures of polymers Produits et systmes pour la protection et la rparation des structures en bton - Mthodes dessai - Dtermination de la temprature de transition vitreuse Produkte und Syste
9、me fr den Schutz und die Instandsetzung von Betontragwerken - Prfverfahren - Bestimmung der Glasbergangstemperatur von Polymeren This 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 fo
10、r 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 Central Secretariat or to any CEN member. This European Standard exists in three official
11、 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belg
12、ium, 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 STANDARDIZATION CO
13、MIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12614:2004: E EN 12614:2004 (E) 2 Contents page Foreword3 1 Scop
14、e 4 2 Terms and definitions .4 3 Test principle4 4 General requirements for testing.5 4.1 Apparatus .5 4.2 Calibration of the temperature scale of the apparatus5 5 Preparation of sample.6 5.1 General6 5.2 Powdered or granular sample6 5.3 Moulded or pelleted samples .6 5.4 Film or sheet samples.6 6 T
15、est procedure.6 7 Test report9 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
16、 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 20
17、05. 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
18、, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. ? nd Unitnit EN 12614:2004 (E) 4 1 Scope This document covers a test method for the determination of glass transition temperature (GTT) of polymers by differentia
19、l scanning calorimetry (DSC) or differential thermal analysis (DTA). This test method is applicable to polymers in granular form (below 60 mesh, 250 , avoiding grinding if possible) or to any fabricated shape from which appropriate samples can be cut. This test method is useful for specification acc
20、eptance. 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
21、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 th
22、ey 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
23、 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 refere
24、nce, 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 th
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