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1、BRITISH STANDARD BS EN 13793:2003 Thermal insulating products for building applications Determination of behaviour under cyclic loading The European Standard EN 13793:2003 has the status of a British Standard ICS 91.100.60 ? Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:22:44 GMT+00:00 2
2、006, Uncontrolled Copy, (c) BSI BS EN 13793:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 20 November 2003 BSI 20 November 2003 ISBN 0 580 42961 X National foreword This British Standard is the official English language version of EN
3、13793:2003. The UK participation in its preparation was entrusted by Technical Committee B/540, Energy performance of materials, components and buildings, to Subcommittee B/540/1, European Standards for thermal insulation, which has the responsibility to: A list of organizations represented on this
4、subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement 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 usin
5、g the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does 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 fr
6、om legal obligations. aid enquirers to understand the text; present to the responsible international/European 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
7、 UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11 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 Licensed C
8、opy: sheffieldun sheffieldun, na, Mon Oct 30 09:22:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13793 September 2003 ICS 91.100.60 English version Thermal insulating products for building applications - Determination of behaviour under cyclic loa
9、ding Produits isolants thermiques destins aux applications du btiment - Dtermination du comportement sous charge cyclique Wrmedmmstoffe fr das Bauwesen - Bestimmung des Verhaltens unter zyklischer Belastung This European Standard was approved by CEN on 1 August 2003. CEN members are bound to comply
10、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 application to the Management Cen
11、tre 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 Management Centre has the same status as the official v
12、ersions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR S
13、TANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13793:2003 E Licensed Copy: sheffieldun sheffie
14、ldun, na, Mon Oct 30 09:22:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13793:2003 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms and definitions4 4Principle5 5Apparatus .5 5.1Testing machine.5 5.2Measurement of displacement .5 5.3Measurement of force6 5.4Recording device.
15、6 6Test specimens6 6.1Dimensions of test specimens.6 6.2Number of test specimens6 6.3Preparation of test specimens7 6.4Conditioning of test specimens .7 7Procedure .7 7.1Test conditions 7 7.2Stress selection .7 7.3Frequency selection 7 7.4Number of load cycles.8 7.5Test procedure.8 8Calculation and
16、expression of results.8 9Accuracy of measurement10 10Test report 10 Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:22:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13793:2003 (E) 3 Foreword This document (EN 13793:2003) has been prepared by Technical Committee CEN /TC 88, “Thermal insu
17、lating materials and products“, the secretariat of which is held by DIN. 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 March 2004, and conflicting national standards shall be withdrawn at the la
18、test by March 2004. This European 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
19、Council Directive of 21 December 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 application
20、s in buildings but may also be used in other areas where it is relevant. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germa
21、ny, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:22:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13793:2003 (E) 4 1 Scope This Eur
22、opean Standard specifies equipment and procedures for determining behaviour of test specimens under cyclic loading conditions. It is applicable to thermal insulating products. The selection of the conditions of the test shall be derived from the specific requirements of the intended application. 2 N
23、ormative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions
24、 of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 826, Thermal insulating products for building applications - Determination
25、of compression behaviour. EN 12085, Thermal insulating products for building applications - Determination of linear dimensions of test specimens. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 thickness, ds initial thickness of the
26、test specimen 3.2 compressive stress, c compressive force referred to the initial area of the cross section of the test specimen min: Lower stress level of one load cycle; max: Upper stress level of one load cycle. 3.3 deformation, X reduction in thickness of the test specimen equal to Xi - X0 both
27、for Xi, min and Xi, max Xi, min: Reduction in thickness of the test specimen under the lower stress level, min, at a given number of load cycles, i; Xi, max: Reduction in thickness of the test specimen under the upper stress level, max, at a given number of load cycles, i. 3.4 relative deformation,
28、quotient of the deformation X of the test specimen and its thickness ds 3.5 load cycle cycle during which the compressive force is applied to the test specimen, starting at min, to be increased to max and then reduced back to min, so that the cycle of loading and unloading describes a type of sine w
29、ave, where min is the bottom and max is the top of the wave Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:22:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13793:2003 (E) 5 4 Principle The vertical deformation of test specimens subjected to repetitive load cycles is determined. 5 Appar
30、atus 5.1 Testing machine A testing machine appropriate for the range of force and displacement involved with two rigid, polished, square or circular plane parallel plates of which the length of one side (or the diameter) is at least as large as the test specimen side (or diagonal) to be tested. One
31、of the plates shall be fixed and the other movable with a centrally positioned ball joint, if appropriate, to ensure that only axial force is applied to the test specimen. The movable plate shall be capable of following a sinusoidal waveform displacement in accordance with the conditions laid down i
32、n clause 7 and illustrated in Figure 1. NOTEThe load cycle should be considered as a sinusoidal waveform if the deviation of the actual curve compared to the theoretical sine curve at every point following the time axis does not exceed 5 % of the duration of one cycle. Key 1 Displacement 2 Time Figu
33、re 1 Illustration of a load cycle 5.2 Measurement of displacement Device for the measurement of the displacement fitted to the compression testing machine which allows continuous measurement of the displacement of the movable plate or of the distance between the two plates and which permits reading
34、to 5 % or 0,1 mm, whichever is the smaller (see 5.3). Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:22:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13793:2003 (E) 6 5.3 Measurement of force Sensor fitted to one of the machine plates to measure the force produced by the reaction of th
35、e test specimen upon the plates. This sensor shall be such that its own deformation during the course of the measuring operation is negligible compared with that being measured or if not, it shall be taken into account by calculation. The sensor shall allow the continuous measurement of the force pe
36、rmitting reading to 3 %. 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. NOTEIt is most likely that only those machines, which incorporate a high precision aligned loading frame with a servo- hydraul
37、ic system control and a computer controlled actuator will comply with the required level of accuracy. The measuring devices for displacement and force are likely to comprise electronic transducers and sensors. In order to achieve the maximum level of accuracy, it is desirable that all test controlli
38、ng, data generation and data management (including all output of tables and plots) are concentrated in one computer system. 6 Test specimens 6.1 Dimensions of test specimens The test specimens shall be at the original product thickness. The width of the test specimens shall not be less than the thic
39、kness. 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 square with recommended cross section areas as follows: 50 mm 50 m
40、m or 100 mm 100 mm or 150 mm 150 mm or 200 mm 200 mm or 300 mm 300 mm. The choice of dimensions to be used shall be as specified in the relevant product standard. In the absence of a product standard or any other European technical specification the dimensions of test specimens may be agreed between
41、 parties. The linear dimensions shall be determined in accordance with EN 12085 with a limit deviation of 0,5 %. The tolerance on parallelism and flatness between the two faces of the test specimen shall not be greater than 0,5 % of the specimen side with a maximum of 0,5 mm. If the test specimens a
42、re not flat, they shall be ground flat or an appropriate levelling layer shall be applied to prepare the surface for the test. No significant deformation shall occur in the levelling layer during the test. In case that a gypsum levelling layer is used, the determination of the dimensions shall occur
43、 prior to the application of the layers. NOTE The accuracy of the test result is reduced if the test specimens have a thickness of less than 20 mm. 6.2 Number of test specimens The number of test specimens shall be as specified in the relevant product standard. In the absence of such a specification
44、, five test specimens shall be used for each stress selected. Licensed Copy: sheffieldun sheffieldun, na, Mon Oct 30 09:22:44 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13793:2003 (E) 7 NOTEIn the absence of a product standard or any other European technical specification the number of test speci
45、mens may be agreed between parties. 6.3 Preparation of test specimens The test specimens shall be cut so that they do not include product edges. The test specimens shall be prepared by methods that do not change the original structure of the product. Any skins, facings and/or coatings shall be retai
46、ned. NOTESpecial methods of preparation, when needed, are given in the relevant product standard or any other European technical specification. 6.4 Conditioning of test specimens The test specimens shall be stored for at least 6 h at (23 5) C. In case of dispute they shall be stored at (23 2)C and (
47、50 5)% relative humidity, for the time specified in the relevant product standard, for a minimum of 6 h. 7 Procedure 7.1 Test conditions The test shall be carried out at (23 2) C. In case of dispute it shall be carried out at (23 2) C and (50 5) % relative humidity. 7.2 Stress selection The test is
48、carried out at one or more different stresses. The different stresses, max, for the cyclic load investigation shall be based on either the compressive strength, m, or the compressive stress at 10 % deformation, 10, measured in accordance with EN 826, and shall be calculated as follows: max = 0,15 m
49、or max = 0,15 10 max = 0,20 m or max = 0,20 10 max = 0,25 m or max = 0,25 10 max = 0,30 m or max = 0,30 10 max = 0,35 m or max = 0,35 10 If appropriate other values of max may be chosen. The corresponding stresses min shall be 5 % of the respective max. 7.3 Frequency selection The test is carried out at a frequency within the range of 0,5 Hz to 10 Hz. The frequency shal