1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12431:2013Thermal insulating products for building applications Determination of thickness for floating floor insulating productsBS EN 12431:2013 BRITISH STANDARDNational f
2、orewordThis British Standard is the UK implementation of EN 12431:2013. Itsupersedes BS EN 12431:1998 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/540, Energy performance of materials components andbuildings.A list of organizations represented on t
3、his committee can beobtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2013. Published by BSI Standards Limited 2013 ISBN 978 0 580 78053 0
4、ICS 91.100.60 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2013. Amendments issued since publicationDate Text affectedBS EN 12431:2013EUROPEAN STANDA
5、RD NORME EUROPENNE EUROPISCHE NORM EN 12431 March 2013 ICS 91.100.60 Supersedes EN 12431:1998English Version Thermal insulating products for building applications - Determination of thickness for floating floor insulating productsProduits isolants thermiques destins aux applications du btiment - Dte
6、rmination de lpaisseur des produits disolation pour sol flottant Wrmedmmstoffe fr das Bauwesen - Bestimmung der Dicke von Dmmstoffen unter schwimmendem Estrich This European Standard was approved by CEN on 15 December 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations wh
7、ich 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 CEN-CENELEC Management Centre or to any CEN member. This E
8、uropean 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-CENELEC Management Centre has the same status as the official versions. CEN members
9、 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
10、 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, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any me
11、ans reserved worldwide for CEN national Members. Ref. No. EN 12431:2013: EBS EN 12431:2013EN 12431:2013 (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 specimens 6 7 Procedure . 7 8 Calculation and expression of res
12、ults 8 9 Accuracy of measurement . 8 10 Test report 8 BS EN 12431:2013EN 12431:2013 (E) 3 Foreword This document (EN 12431:2013) 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 gi
13、ven 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 documen
14、t may 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 12431:1998. The revision of this standard contains no major changes, only minor corrections and clarifications of an editorial nature. Th
15、is 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 Council Directive of 2
16、1 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 applications in buildings but it
17、may also be used in other areas where it is relevant. This European test standard is one of the following group of interrelated 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, T
18、hermal 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 product
19、s 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 apparent density EN 1603, Thermal insulating products for bui
20、lding 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, Therm
21、al 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 BS EN 12431:2013EN 12431:2013 (E) 4 EN 1607, Thermal insulating
22、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 wa
23、ter 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 insulating
24、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 bendin
25、g 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 moistur
26、e 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 produ
27、cts 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 organisation
28、s 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,
29、Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12431:2013EN 12431:2013 (E) 5 1 Scope This European Standard specifies the equipment and procedures for determining the thickness of thermal insulating products for im
30、pact sound insulation in floating floor applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest e
31、dition of the referenced document (including any amendments) applies. EN 12085, Thermal insulating products for building applications Determination of linear dimensions of test specimens 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 thickne
32、ss dLthickness of the product under a load of 250 Pa 3.2 thickness dFthickness of the product under a load of 2 kPa 3.3 thickness dBthickness of the product under a load of 2 kPa after application of a short time additional load (48 kPa) 4 Principle The thickness is determined as the distance measur
33、ed between a rigid flat base plate on which the test specimen rests and a rigid flat pressure plate exerting different specified pressures on the top surface of the test specimen. 5 Apparatus 5.1 Dial gauge, which permits reading to 0,1 mm, mounted on a rigid frame fastened to a rigid flat base plat
34、e. 5.2 Device, with the same accuracy with two readings of the thickness/deformation placed symmetrically on a diagonal on the upper square plate of the device. The mean of these two readings is the thickness/deformation. 5.3 Base plate and pressure plate, which shall be at least as large as the tes
35、t specimen. 5.4 Device, which exerts a total pressure on the test specimen of (250 5) Pa (including the force exerted by the dial gauge). BS EN 12431:2013EN 12431:2013 (E) 6 5.5 Device, which exerts a total pressure on the test specimen of (2 000 20) Pa (including the force exerted by the dial gauge
36、). 5.6 Device, which exerts a total pressure on the test specimen of (50 000 500) Pa. Alternative to 5.1 through 5.6, a compression testing machine suited to the range of force and displacement involved can be used. The compression testing machine shall have two very rigid, polished, square plane pa
37、rallel plates of which the length of one side is at least as large as the test specimen side to be tested. One of the plates shall be fixed and the other movable, if appropriate, with a centrally positioned knee ball joint to ensure that only axial force is applied to the test specimen. A device for
38、 measuring the displacement shall be fitted to the compression testing machine, which allows measurement of the displacement of the movable plate and which permits a reading to 0,1 mm. A sensor shall be fitted to one of the machine plates to measure the force produced by the reaction of the test spe
39、cimen 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. If not, it shall be taken to account by calculation. In addition, it shall allow continuous measurement of the force permitting a re
40、ading into 1 %. When measurements are made on a movable plate and not in the axis, two sensors shall be used placed symmetrically versus the axis. The mean value of the two readings is used. 6 Test specimens 6.1 Dimensions of test specimens The thickness of the test specimens shall be the original p
41、roduct thickness. The test specimens shall be squarely cut and square having sides of (200 1) mm. The length and width shall be determined in accordance with EN 12085, with an accuracy of 1 mm. 6.2 Number of test specimens The number of test specimens shall be as specified in the relevant product st
42、andard. If the number is not specified, then ten test specimens shall be used. In the absence of a product standard or any other European Technical Specification, the number of test specimens may be agreed between parties. 6.3 Preparation of test specimens The test specimens shall be cut so that the
43、y 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 retained. 6.4 Conditioning of test specimens The test specimens shall be stored for at least 6 h at (23 5) C. In case
44、of dispute they shall be stored at (23 2) C and (50 5) % relative humidity for the time specified in the relevant product standard. BS EN 12431:2013EN 12431:2013 (E) 7 7 Procedure 7.1 Test conditions The test shall be carried out at (23 5) C. In case of dispute it shall be carried out at (23 2) C an
45、d (50 5) % relative humidity. 7.2 Test procedure 7.2.1 General Figure 1, below, indicates the procedures to be followed for the determination of the test specimen thicknesses. 7.2.2 Thickness, dLLay the test specimen on the rigid, flat and horizontal base plate ensuring that the measuring area is in
46、 contact with the base plate. Place the test specimens, if faced or coated on one side, with the facing or coating against the base plate. Load the test specimen with a device exerting a pressure of 250 Pa. Measure the thickness (120 5) s after placing the pressure plate in position, to the nearest
47、0,1 mm. The thickness may be measured with the dial gauge at two diagonally opposite corners or in the centre of the pressure plate or using a measuring device (pin) forced through an opening in the centre of the pressure plate. 7.2.3 Thickness dFand dBThe thicknesses dFand dBshall be determined on
48、the same test specimens that were previously used for determining the thickness dL. Load the test specimens with a device exerting a pressure of 2 kPa. Measure the thickness dF(120 5) s after applying this pressure, to the nearest 0,1 mm. Apply an additional pressure of 48 kPa. Remove this additiona
49、l pressure after (120 5) s. Measure the thickness dBto the nearest 0,1 mm (120 5) s or (300 10) s after removing the pressure of 48 kPa. The pause before measuring the thickness, either 120 s or 300 s, shall be as specified in the relevant product standard. In the absence of a product standard or any other European Technical Specification the pause time may be agreed upon between parties. BS EN 12431:2013EN 12431:2013 (E) 8 Key
