1、May 2013 Translation by DIN-Sprachendienst.English price group 10No 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!%$*“2010756www.din.deDDIN EN 826Thermal insulating products for building applications Determination of compression behaviour;English version EN 826:2013,English translation of DIN EN 826:2013-05Wrmedmmstoffe fr das Bauwesen Bestimmung des Verhaltens bei Druckbeanspruchung;Englische Fassung E
3、N 826:2013,Englische bersetzung von DIN EN 826:2013-05Produits isolants thermiques destins aux applications du btiment Dtermination du comportement en compression;Version anglaise EN 826:2013,Traduction anglaise de DIN EN 826:2013-05SupersedesDIN EN 826:1996-05www.beuth.deDocument comprises 15 pages
4、In case of doubt, the German-language original shall be considered authoritative.04.13 DIN EN 826:2013-05 2 A comma is used as the decimal marker. National foreword This document (EN 826:2013) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating materials and products” (Secretariat
5、: 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. The DIN Standards corresponding to the International Standards referred to in this document
6、are as follows: ISO 5725-1 DIN ISO 5725-1 ISO 5725-2 DIN ISO 5725-2 Amendments This standard differs from DIN EN 826:1996-05 as follows: a) the standard has been editorially revised. Previous editions DIN 1101: 1938-09, 1952x-01, 1960-10, 1970-04, 1980-03, 1989-11 DIN 18165: 1957-08, 1963-03 DIN 181
7、64: 1963-01, 1966-08 DIN 1104-1: 1970-04, 1980-03 DIN 18164-1: 1972-12, 1979-06, 1991-12, 1992-08 DIN 18165-1: 1975-01, 1987-03, 1991-07 DIN 18161-1: 1976-12 DIN 18174: 1981-01 DIN 52272-1: 1982-10 DIN EN 826: 1996-05 National Annex NA (informative) Bibliography DIN ISO 57251, Accuracy (trueness and
8、 precision) of measurement methods and results Part 1: General principles and definitions DIN ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method EUROPEAN STA
9、NDARD NORME EUROPENNE EUROPISCHE NORM EN 826 March 2013 ICS 91.100.60 Supersedes EN 826:1996 English Version Thermal insulating products for building applications Determination of compression behaviour Produits isolants thermiques destins aux applications du btiment Dtermination du comportement en c
10、ompression Wrmedmmstoffe fr das Bauwesen Bestimmung des Verhaltens bei Druckbeanspruchung This European Standard was approved by CEN on 15 December 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta
11、tus 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, G
12、erman). 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croa
13、tia, Cyprus, Czech Republic, Denmark, 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 U
14、nited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, 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 826:2013:
15、 E 2 Contents Page Foreword . 3 1 Scope 5 2 Normative references . 5 3 Terms and definitions 5 4 Principle 6 5 Apparatus . 6 6 Test specimens 6 7 Procedure . 7 8 Calculation and expression of results 9 9 Accuracy of measurement . 10 10 Test report 11 Annex A (normative) Modifications to the general
16、test method for cellular glass products . 12 DIN EN 826:2013-05 EN 826:2013 (E) 3 Foreword This document (EN 826:2013) 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 the st
17、atus 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 may be t
18、he 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 826:1996. The revision of this standard contains no major changes, only minor corrections and clarifications of an editorial nature. This European
19、standard has been prepared for building applications, but it may also be used in other areas where it is relevant. This European test standard is one of the following group of related standards on test methods for determining dimensions and properties of thermal insulation materials and products, al
20、l of which fall within the scope of CEN/TC 88: EN 822, Thermal 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 Determ
21、ination of squareness EN 825, Thermal insulating products for 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 appar
22、ent density EN 1603, Thermal insulating products for building 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 spec
23、ified temperature and humidity conditions EN 1605, Thermal 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 EN 1607,
24、 Thermal insulating 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 DIN EN 826:2013-05 EN 826:2013 (E) 4 EN 1609, Thermal insulating products
25、 for building applications Determination of short-term 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 vap
26、our transmission properties 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 EN 12089, Thermal insulating p
27、roducts for building applications Determination of bending 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 p
28、roducts for building applications Conditioning to moisture 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 Deter
29、mination of thickness for floating floor insulating products 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
30、Internal Regulations, the national standards organisations 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, Icelan
31、d, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 826:2013-05 EN 826:2013 (E) 5 1 Scope This European Standard specifies the equipment and procedures to be use
32、d when determining the compression behaviour of test specimens. It is applicable to thermal insulating products and can be used to determine the compressive stress in compressive creep tests and for applications in which insulation products are only exposed to short-term loads. The method can be use
33、d for quality control purposes. It may also be employed to obtain reference values from which design values can be calculated using safety factors. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicati
34、on. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12085, Thermal insulating products for building applications Determination of linear dimensions of test specimens ISO 5725-1, Accurac
35、y (trueness and precision) of measurement methods and results Part 1: General principles and definitions ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method 3
36、 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 3.1 relative deformation ratio of the reduction in thickness of the test specimen to its initial thickness, d0, measured in the direction of loading 3.2 compressive strength mratio of the maximum com
37、pressive force, Fm, reached when the strain, , at yield (see Figure 1b) or rupture (see Figure 1a) is less than 10 %, to the initial cross-sectional area of the test specimen 3.3 compressive stress at 10 % strain 10ratio of the compressive force, F10, at 10 % strain, 10, to the initial cross section
38、 of the test specimen (see Figures 1c) and 1d) for products presenting 10 % strain before possible yield or rupture 3.4 compression modulus of elasticity E compressive stress divided by the corresponding strain below the proportional limit, when the relationship is linear Note 1 to entry: See Figure
39、 1. DIN EN 826:2013-05 EN 826:2013 (E) 6 4 Principle A compressive force is applied at a given rate of displacement perpendicular to the major faces of a squarely cut test specimen and the maximum stress supported by the specimen calculated. In case of tapered products, the test specimens should be
40、cut to obtain two parallel faces. When the value of the maximum stress corresponds to a strain of less than 10 %, it is designated as compressive strength and the corresponding strain is reported. If no failure is observed before the 10 % strain has been reached, the compressive stress at 10 % strai
41、n is calculated and its value reported as compressive stress at 10 % strain. 5 Apparatus 5.1 Compression testing machine Compression testing machine, designed to suit the range of force and displacement involved and having two very rigid, polished, square or circular plane parallel platens with a mi
42、nimum side length (or diameter) equal to the side length (or diagonal) of the test specimen. One of the plates shall be fixed and the other movable, if appropriate, with a centrally positioned ball joint to ensure that only axial force is applied to the test specimen. The movable plate shall be capa
43、ble of moving at a constant rate of displacement in accordance with Clause 7. 5.2 Measurement of displacement Displacement measuring device, fitted to the compression testing machine, which allows continuous measurement of the displacement of the movable plate to an accuracy of 5 % or 0,1 mm, whiche
44、ver is smaller (see 5.3). 5.3 Measurement of force Sensor fitted to one of the machine plates to measure the force produced by the reaction of the specimen upon the plates. This sensor shall be such that its own deformation during the measuring operation is negligible compared with that being measur
45、ed or, if not, it shall be taken into account by calculation. In addition, it shall allow the continuous measurement of the force to an accuracy of 1 %. 5.4 Recording device Device for the simultaneous recording of the force, F, and the displacement, X, which provides a curve of F as a function of X
46、 (see 7.2). NOTE The curve gives additional information on the behaviour of the product and possibly enables the determination of the compression modulus of elasticity. 6 Test specimens 6.1 Dimensions of test specimens The test specimens shall have the original product thickness. The width of the te
47、st specimens shall be not less than their thickness. Products with integrally moulded skins which are retained in use shall be tested with these skins intact. Test specimens shall not be layered to produce a greater thickness for testing. Test specimens shall be squarely cut and have the following d
48、imensions: 50 mm 50 mm or 100 mm 100 mm or DIN EN 826:2013-05 EN 826:2013 (E) 7 150 mm 150 mm or 200 mm 200 mm or 300 mm 300 mm. The choice of dimensions to be used shall be specified in the relevant product standard. In the absence of a product standard, the test specimen dimensions may be agreed between parties. The linear dimensions shall be determined in accordance with EN 12085, to an accuracy
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