1、June 2013 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 91
2、.100.60!%1“2021495www.din.deDDIN EN 12091Thermal insulating products for building applications Determination of freeze-thaw resistance;English version EN 12091:2013,English translation of DIN EN 12091:2013-06Wrmedmmstoffe fr das Bauwesen Bestimmung des Verhaltens bei Frost-Tau-Wechselbeanspruchung;E
3、nglische Fassung EN 12091:2013,Englische bersetzung von DIN EN 12091:2013-06Produits isolants thermiques destins aux applications du btiment Dtermination de la rsistance aux effets du gel-dgel;Version anglaise EN 12091:2013,Traduction anglaise de DIN EN 12091:2013-06SupersedesDIN EN 12091:1997-08www
4、.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 12 pages 05.13 DIN EN 12091:2013-06 2 A comma is used as the decimal marker. National foreword This document (EN 12091:2013) has been prepared by Technical Committee CEN/TC 88 “Thermal insula
5、ting materials and products” (Secretariat: DIN, Germany) The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-56-60 AA Wrmedmmstoffe. Amendments This standard differs from DIN EN 12091:
6、1997-08 as follows: a) the standard has been editorially revised. Previous editions DIN EN 12091: 1997-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12091 March 2013 ICS 91.100.60 Supersedes EN 12091:1997English Version Thermal insulating products for building applications - Determination
7、of freeze-thaw resistance Produits isolants thermiques destins aux applications du btiment - Dtermination de la rsistance aux effets du gel-dgel Wrmedmmstoffe fr das Bauwesen - Bestimmung des Verhaltens bei Frost-Tau-Wechselbeanspruchung This European Standard was approved by CEN on 15 December 2012
8、. 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
9、 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-CENEL
10、EC 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
11、, 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 Management Centre: Avenue Marnix 17,
12、 B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12091:2013: EEN 12091:2013 (E) 2 Contents Page Foreword . 3 1 Scope 5 2 Normative references . 5 3 Terms and definitions 5 4 Principle 5 5 Apparatus . 5 6 Test s
13、pecimens 6 6.1 General . 6 6.2 Dimensions of test specimens 6 6.3 Number of test specimens . 6 6.4 Preparation of test specimens . 6 6.5 Conditioning of test specimens. 6 7 Procedure . 6 8 Calculation and expression of results 8 8.1 Water absorption 8 8.2 Changes in the compression behaviour . 9 9 A
14、ccuracy of measurement . 9 10 Test report 10 DIN EN 12091:2013-06 EN 12091:2013 (E) 3 Foreword This document (EN 12091:2013) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating materials and products”, the secretariat of which is held by DIN. This European Standard shall be given
15、the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2013, and conflicting national standards shall be withdrawn at the latest by September 2013. Attention is drawn to the possibility that some of the elements of this document ma
16、y be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12091:1997. The revision of this standard contains no major changes, only minor corrections and clarifications of an editorial nature. This E
17、uropean Standard is one of a series of standards which specify test methods for determining dimensions and properties of thermal insulating materials and products. It supports a series of product standards for thermal insulating materials and products which derive from the Council Directive of 21 De
18、cember 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products (Directive 89/106/EEC) through the consideration of the essential requirements. This European Standard has been drafted for applications in buildings but it may
19、also be used in other areas where it is relevant. This European test standard is one of the following group of inter-related standards on test methods for determining dimensions and properties of thermal insulation materials and products, all of which fall within the scope of CEN/TC 88: EN 822, Ther
20、mal insulating products for building applications Determination of length and width EN 823, Thermal insulating products for building applications Determination of thickness EN 824, Thermal insulating products for building applications Determination of squareness EN 825, Thermal insulating products f
21、or building applications Determination of flatness EN 826, Thermal insulating products for building applications Determination of compression behaviour EN 1602, Thermal insulating products for building applications Determination of the apparent density EN 1603, Thermal insulating products for buildi
22、ng applications Determination of dimensional stability under constant normal laboratory conditions (23 C/50 % relative humidity) EN 1604, Thermal insulating products for building applications Determination of dimensional stability under specified temperature and humidity conditions EN 1605, Thermal
23、insulating products for building applications Determination of deformation under specified compressive load and temperature conditions EN 1606, Thermal insulating products for building applications Determination of compressive creep DIN EN 12091:2013-06 EN 12091:2013 (E) 4 EN 1607, Thermal insulatin
24、g products for building applications Determination of tensile strength perpendicular to faces EN 1608, Thermal insulating products for building applications Determination of tensile strength parallel to faces EN 1609, Thermal insulating products for building applications Determination of short-term
25、water absorption by partial immersion EN 12085, Thermal insulating products for building applications Determination of linear dimensions of test specimens EN 12086, Thermal insulating products for building applications Determination of water vapour transmission properties EN 12087, Thermal insulatin
26、g products for building applications Determination of long-term water absorption by immersion EN 12088, Thermal insulating products for building applications Determination of long-term water absorption by diffusion EN 12089, Thermal insulating products for building applications Determination of bend
27、ing behaviour EN 12090, Thermal insulating products for building applications Determination of shear behaviour EN 12091, Thermal insulating products for building applications Determination of freeze-thaw resistance EN 12429, Thermal insulating products for building applications Conditioning to moist
28、ure equilibrium under specified temperature and humidity conditions EN 12430, Thermal insulating products for building applications Determination of behaviour under point load EN 12431, Thermal insulating products for building applications Determination of thickness for floating floor insulating pro
29、ducts EN 13793, Thermal insulating products for building applications Determination of behaviour under cyclic loading EN 13820, Thermal insulating materials for building applications Determination of organic content According to the CEN/CENELEC Internal Regulations, the national standards organisati
30、ons 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
31、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12091:2013-06 EN 12091:2013 (E) 5 1 Scope This European Standard specifies the equipment and procedures for determining the effect of successive cycling from dry co
32、nditions at -20 C to wet conditions at 20 C on the mechanical properties and moisture content of the product. It is applicable to thermal insulating products. It is intended to simulate freeze-thaw effects on thermal insulating products which are frequently exposed to water and low temperature condi
33、tions, e.g. inverted roofs and unprotected ground insulation. This test method is not recommended for all thermal insulating products. If relevant, the product standards will state for which products this standard is applicable. 2 Normative references The following documents, in whole or in part, ar
34、e normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 826, Thermal insulating products for building applic
35、ations Determination of compression behaviour EN 12087, Thermal insulating products for building applications Determination of long term water absorption by immersion EN 12088, Thermal insulating products for building applications Determination of long term water absorption by diffusion 3 Terms and
36、definitions For the purposes of this document, the following term and definition applies. 3.1 freeze-thaw resistance ability of a product to withstand repeated wetting followed by freezing conditions, quantified by water absorption and change in compression behaviour 4 Principle The freeze-thaw resi
37、stance is determined as the change in the amount of water absorbed and the change in compression strength or stress of a test specimen which is subjected to 300 successive cycles from dry conditions at -20 C to wet conditions at 20 C. Testing is carried out in conjunction with either one of the foll
38、owing long term water absorption tests: a) Water absorption by diffusion according to EN 12088; b) Water absorption by total immersion according to EN 12087. The chosen long-term water absorption test a) and/or b) is given in the relevant product standard in accordance to the application. Freezing t
39、akes place in the air; thawing in the water. 5 Apparatus 5.1 Cold chamber, with a constant temperature of (-20 2) C. 5.2 Watertank, with a constant water temperature of (20 2) C equipped with a device for keeping the test specimen in position. DIN EN 12091:2013-06 EN 12091:2013 (E) 6 Normally no acc
40、elerated thermal exchange is provided, e.g. fan assistance in the cold chamber or turbulent water circulation in the watertank. 5.3 Balance, which permits reading to 0,1 g. 5.4 Compression testing machine, including measuring devices according to EN 826. 6 Test specimens 6.1 General The freeze-thaw
41、test shall be made on the same test specimens, referred to as set A, which have been used for the determination of long-term water absorption by diffusion according to EN 12088, or by total immersion according to EN 12087. 6.2 Dimensions of test specimens The thickness of the test specimens shall be
42、 the original product thickness. The test specimens for set A shall be squares with squarely cut edges having sides of (500 1) mm or (200 1) mm depending on the chosen water absorption test. 6.3 Number of test specimens The number of test specimens for set A is determined by the requirement that two
43、 sets of test specimens for the compression test (set B1 and B2) can be prepared from set A. The number and dimensions of test specimens for each set B1 and B2 for the compression test shall be as specified in the relevant product standard or any other European Technical Specification. In the absenc
44、e of such a specification, the number and dimensions of test specimens shall be as defined in EN 826. The number of test specimens for the long-term water absorption should be adapted accordingly. 6.4 Preparation of test specimens If possible, the test specimens shall be cut so that they do not incl
45、ude original product edges. Cutting of the test specimens shall be by methods that do not change the original structure of the product. Any skins, facings and/or coatings shall be retained. 6.5 Conditioning of test specimens The test specimens shall be stored for at least 6 h at (23 5) C. In case of
46、 dispute they shall be stored at (23 2) C and (50 5) % relative humidity for the time specified in the relevant product standard with a minimum of 6 h. 7 Procedure Carry out the freeze-thaw test in accordance with the procedure indicated in Figure 1. All test specimens shall be taken from the same s
47、ample. DIN EN 12091:2013-06 EN 12091:2013 (E) 7 Figure 1 Flow chart for the test procedure Determine the compression behaviour of the original product in accordance with EN 826 (mor 10). Determine the long-term water absorption of the test specimens using either EN 12088 or EN 12087. Record m0, the
48、mass of test specimens at the end of the diffusion test (m0= mD) or the total immersion test (m0= m28). Place the test specimens in the cold chamber and maintain the temperature at (-20 2) C for 1 h. Remove the test specimens from the cold chamber and immerse them in water. Maintain the temperature at (20 2) C for 1 h. Continue the test for 300 cycles (see Figure 2). When there are breaks longer than 1
