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1、BRITISH STANDARD BS EN 12431:1998 Incorporating amendment no. 1 Thermal insulating products for building applications Determination of thickness for floating floor insulating products The European Standard EN 12431:1998, incorporating amendment A1:2006, has the status of a British Standard ICS 91.10
2、0.99 ? Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:30:33 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 12431:1998 This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published
3、under the authority of the Standards Committee and comes into effect on 15 December 1998 BSI 2006 ISBN 0 580 30165 6 National foreword This British Standard was published by BSI. It is the UK implementation of EN 12431:1998, incorporating amendment A1:2006. It is one of a large number of European te
4、st method standards which have been introduced for thermal insulating products. Guidance on the content and application of these new test methods is given in PD 6621. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. Tags indicating changes to CEN t
5、ext carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated in the text by !“. 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 st
6、andards for thermal insulation. A list of organizations represented on this committee can be obtained 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. Compliance with a British Sta
7、ndard cannot of itself confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 1679329 December 2006See national foreword Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:30:33 GMT+00:00 2007, Uncontrolled Copy, (c) BS
8、I CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12431:1
9、998 E EUROPEAN STANDARDEN 12431 NORME EUROPE ENNE EUROPA ISCHE NORM June 1998 ICS 91.100.99 Descriptors: thermal insulation, buildings, thermal insulating materials, building slabs, thickness measurement, acoustic insulation, test equipment, specimen preparation, testing conditions, fidelity, test r
10、esults English version Thermal insulation products for building applications Determination of thickness for floating floor insulating products Produits isolants thermiques destine s aux applications du ba timent De termination de le paisseur des produits disolation pour sol flottant Wa rmeda mmstoff
11、e fu r das Bauwesen Bestimmung der Dicke von Da mmstoffen unter schwimmendem Estrich This European Standard was approved by CEN on 5 June 1998. 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 n
12、ational 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 versions (English, French, German). A version in
13、 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, Belgium, Czech Republic, Denmark, Finland, France, Ge
14、rmany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. September 2006 +A1 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:30:33 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Page 2 EN 124
15、31:1998 Foreword This European Standard 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 is one of a series of standards which specify test methods for determining dimensions and properties
16、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 December 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to c
17、onstruction 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 also be used in other areas where it is relevant. This European Standard shall be given the status of a national stand
18、ard, either by publication of an identical text or by endorsement, at the latest by December 1998, and conflicting national standards shall be withdrawn at the latest by December 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries
19、are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3D
20、efinitions3 4Principle3 5Apparatus3 6Test specimens3 7Procedure4 8Calculation and expression of results4 9Accuracy of measurement4 10Test report4 Foreword to amendment A1 This document (EN 12431:1998/A1:2006) has been prepared by Technical Committee CEN/TC 88 ?Thermal insulating materials and produc
21、ts?, the secretariat of which is held by DIN. standard, either by publication of an identical text or by endorsement, at the latest by March 2007, and conflicting national standards shall be withdrawn at the latest by March 2007. According to the CEN/CENELEC Internal Regulations, the national standa
22、rds 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, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Rom
23、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. This Amendment to the European Standard EN 12431:1998 shall be given the status of a national , the BSI 2006 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:30:33 GMT+00:00 2007, Uncontr
24、olled Copy, (c) BSI Page 3 EN 12431:1998 1 Scope This European Standard specifies the equipment and procedures for determining the thickness of thermal insulating products for impact sound insulation in floating floor applications. 2 Normative references This European Standard incorporates, by dated
25、 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 of these publications apply to this European Standard only when
26、 incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 12085, Thermal insulating products for building applications Determination of linear dimensions of test specimens. 3 Definitions For the purposes of this standard, the f
27、ollowing definitions apply. 3.1 thickness, dL thickness of the product under a load of 250 Pa 3.2 thickness, dF thickness of the product under a load of 2 kPa 3.3 thickness, dB thickness of the product under a load of 2 kPa after application of a short time additional load (48 kPa) 4 Principle The t
28、hickness is determined as the distance measured 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 r
29、igid frame fastened to a rigid flat base plate. 5.2 Base plate and pressure plate, which shall be at least as large as the test specimen. 5.3 A device, which exerts a total pressure on the test specimen, of (2505) Pa (including the force exerted by the dial gauge). 5.4 A device, which exerts a total
30、 pressure on the test specimen, of (2 00020) Pa (including the force exerted by the dial gauge). 5.5 A device, which exerts a total pressure on the test specimen of (50 000500) Pa. 6 Test specimens 6.1 Dimensions of test specimens The thickness of the test specimens shall be the original product thi
31、ckness. The test specimens shall be squarely cut and square having sides of (2001) mm. The length and width shall be determined in accordance with EN 12085, with an accuracy of1 mm. 6.2 Number of test specimens The number of test specimens shall be as specified in the relevant product standard. If t
32、he number is not specified, then ten test specimens shall be used. NOTEIn the absence of a product standard or any other European technical specification, the number of test specimens may be agreed between parties. A device with the same accuracy with two readings of the thickness/deformation placed
33、 symmetrically on a diagonal on the upper square plate of the device. The mean of these two readings is the thickness/deformation. Alternative to 5.1 through 5.5 a compression testing machine suited to the range of force and displacement involved can be used. The compression testing machine shall ha
34、ve two very rigid, polished, square plane parallel 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 i
35、s applied to the test specimen. A device for 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 fo
36、rce produced by the reaction of the 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. If not, it shall be taken to account by calculation. In addition, it shall allow continu
37、ous measurement of the force permitting a reading 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 and then the mean value of the two measurements is used. ! “ ! “ BSI 2006 Licensed Copy: London South Bank Uni
38、versity, London South Bank University, Thu Jan 18 01:30:33 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Page 4 EN 12431:1998 Figure 1 Illustration of the thicknesses versus time and load 7 Procedure 7.1 Test conditions The test shall be carried out at (235) 8C. In case of dispute it shall be carried o
39、ut at (232) 8C and (505) % 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, dL Lay the test specimen on the rigid, flat and horizontal base plate ensuring that the mea
40、suring area is in 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 (1205) s after placing the pressure plate in position,
41、 to the nearest 0,1 mm. NOTEThe 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 Thicknesses dFand dB The thicknesses dFand dB
42、shall be determined on 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(1205) s after applying this pressure, to the nearest 0,1 mm. Apply an additional pressure of 48 kPa.
43、 Remove this additional pressure after (1205) s. Measure the thickness dBto the nearest 0,1 mm (1205) s or (30010) 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. NOTEIn the absence of a
44、 product standard or any other European technical specification the pause time may be agreed upon between parties. 8 Calculation and expression of results The results for each thickness dL, dFand dBshall be the mean value of the respective measurements made on all test specimens, rounded to the near
45、est 0,1 mm. 9 Accuracy of measurement NOTEIt has not been possible to include a statement on the accuracy of the measurements in this edition of the standard, but it is intended to include such a statement when the standard is next revised. 6.3 Preparation of the test specimens The test specimens sh
46、all 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 retained. 6.4 Conditioning of test specimens The test specimens shall be stored for at least 6 h
47、 at (235) 8C. In case of dispute they shall be stored at (232) 8C and (505) % relative humidity for the time specified in the relevant product standard. BSI 2006 Licensed Copy: London South Bank University, London South Bank University, Thu Jan 18 01:30:33 GMT+00:00 2007, Uncontrolled Copy, (c) BSI
48、Page 5 EN 12431:1998 10 Test report The test report shall include the following information: a) reference to this European Standard; b) product identification: 1) product name, factory, manufacturer or supplier; 2) production code number; 3) type of product; 4) packaging; 5) the form in which the pr
49、oduct arrived at the laboratory; 6) other information as appropriate, e.g. nominal thickness, nominal density; c) test procedure: 1) pre-test history and sampling, e.g. who sampled and where; 2) conditioning; 3) if any deviation from clauses 6 and 7; 4) date of testing; 5) number of test specimens; 6) general information relating to the test, e.g. the pause before measuring dB; 7) events which may have affected the results; NOTEInformation about the apparat
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