1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 823:2013Thermal insulating productsfor building applications Determination of thicknessBS EN 823:2013 BRITISH STANDARDNational forewordThis British Standard is the UK imple
2、mentation of EN 823:2013. Itsupersedes BS EN 823:1995 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/540, Energy performance of materials components andbuildings.A list of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 this committee can beobtained on request to its s
3、ecretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 78036 3ICS 91.100.60Compliance with a British Standard canno
4、t confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2013.Amendments issued since publicationDate Text affectedBS EN 823:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 823 March 2013 ICS 91
5、.100.60 Supersedes EN 823:1994English Version Thermal insulating products for building applications - Determination of thickness Produits isolants thermiques destins aux applications du btiment - Dtermination de lpaisseur Wrmedmmstoffe fr das Bauwesen - Bestimmung der Dicke This European Standard wa
6、s 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 status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such
7、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, German). A version in any other language made by translation under the responsibility of a CEN member into its own l
8、anguage 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gre
9、ece, Hungary, Iceland, Ireland, Italy, 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
10、 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 823:2013: EBS EN 823:2013EN 823:2013 (E) 2 Contents Page Foreword . 3 1 Scope 5 2 Normative references . 5 3 Terms and defin
11、itions 5 4 Principle 5 5 Apparatus . 5 6 Test specimens 6 7 Procedure . 7 8 Calculation and expression of results 8 9 Accuracy of measurement . 8 10 Test report 9 Annex A (normative) Preparation of test specimens for compressed products 10 Annex B (normative) Examples of other methods for the determ
12、ination of thickness 11 BS EN 823:2013EN 823:2013 (E) 3 Foreword This document (EN 823:2013) 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 status of a national standar
13、d, 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 the subject of patent right
14、s. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 823:1994. The revision of this standard contains no major changes, only minor corrections and clarifications of an editorial nature. This European Standard is one of a serie
15、s 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 insulating materials and products which derive from the Council Directive of 21 December 1988 on the approximation of laws,
16、regulations and administrative provisions of the Member States relating to construction products (89/106/EEC) through the consideration of the essential requirements. This European Standard gives the reference method. Other methods may be used (e.g. for quality control), provided a correlation has b
17、een established with this reference method; Annex B gives some examples of such methods. This European standard has been drafted for applications in building but it may also be used in other areas where it is relevant. This European test standard is one of the following group of interrelated standar
18、ds 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, Thermal insulating products for building applications Determination of length and width EN 823, Thermal insulating products for building
19、 applications Determination of thickness EN 824, Thermal insulating products for building applications Determination of squareness EN 825, Thermal insulating products for building applications Determination of flatness EN 826, Thermal insulating products for building applications Determination of co
20、mpression behaviour EN 1602, Thermal insulating products for building applications Determination of the apparent density EN 1603, Thermal insulating products for building applications Determination of dimensional stability under constant normal laboratory conditions (23 C/50 % relative humidity) EN
21、1604, Thermal insulating products for building applications Determination of dimensional stability under specified temperature and humidity conditions EN 1605, Thermal insulating products for building applications Determination of deformation under specified compressive load and temperature conditio
22、ns BS EN 823:2013EN 823:2013 (E) 4 EN 1606, Thermal insulating products for building applications Determination of compressive creep EN 1607, Thermal insulating products for building applications Determination of tensile strength perpendicular to faces EN 1608, Thermal insulating products for buildi
23、ng applications Determination of tensile strength parallel to faces EN 1609, Thermal insulating products 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 t
24、est specimens EN 12086, Thermal insulating products for building applications Determination of water vapour transmission properties EN 12087, Thermal insulating products for building applications Determination of long-term water absorption by immersion EN 12088, Thermal insulating products for build
25、ing applications Determination of long-term water absorption by diffusion EN 12089, Thermal insulating products for building applications Determination of bending behaviour EN 12090, Thermal insulating products for building applications Determination of shear behaviour EN 12091, Thermal insulating p
26、roducts for building applications Determination of freeze-thaw resistance EN 12429, Thermal insulating products for building applications Conditioning to moisture equilibrium under specified temperature and humidity conditions EN 12430, Thermal insulating products for building applications Determina
27、tion of behaviour under point load EN 12431, Thermal insulating products for building applications Determination of thickness for floating floor insulating products EN 13793, Thermal insulating products for building applications Determination of behaviour under cyclic loading EN 13820, Thermal insul
28、ating materials for building applications Determination of organic content According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, De
29、nmark, 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 the United Kingdom. BS EN 823:20
30、13EN 823:2013 (E) 5 1 Scope This European Standard specifies the equipment and procedures for determining the thickness of full-size products. It is applicable to thermal insulating products. 2 Normative references This European Standard contains no normative references. 3 Terms and definitions For
31、the purposes of this document, the following term and definition applies. 3.1 thickness d linear dimension measured perpendicularly to the length and width plane 4 Principle The distance is measured between a hard flat reference surface on which the test specimen rests and a pressure plate resting f
32、reely on the top face of the test specimen. 5 Apparatus 5.1 Measuring device, comprising a dial gauge and a square pressure plate. An example of a suitable apparatus is given in Figure 1. 5.1.1 Dial gauge, capable of measuring to an accuracy of at least 0,5 mm1)and mounted on a rigid frame fastened
33、to a flat rigid base plate which is at least as large as the test specimen. 5.1.2 Pressure plate, 200 mm square, which exerts a total pressure on the test specimen of either (50 1,5) Pa or (250 5) Pa (including the force exerted by the dial gauge). The pressure shall be as given in the relevant prod
34、uct standard. Any test equipment which provides the same result with at least the same accuracy may be used. 1) If a higher accuracy is required, it is specified in the relevant product standard or agreed between parties. BS EN 823:2013EN 823:2013 (E) 6 Key 1 rigid frame 2 dial gauge 3 square pressu
35、re plate 4 test specimen 5 flat rigid base plate Figure 1 Example of suitable apparatus for determining the thickness 6 Test specimens 6.1 Dimensions of test specimens The test specimen shall be the full-size product, but it may be necessary to cut the product into pieces of appropriate size. 6.2 Nu
36、mber of test specimens The number of test specimens shall be as specified in the relevant product standard. In the absence of a product standard, the number of test specimens may be agreed between parties. 6.3 Conditioning of test specimens The test specimens shall be stored for at least 6 h at (23
37、5) C. In cases of dispute, they shall be stored at (23 2) C and (50 5) % relative humidity for the time specified in the relevant product standard. 6.4 Preparation of test specimens Any facings or coatings shall be retained. For compressed products, the preparation of test specimens shall be in acco
38、rdance with Annex A. BS EN 823:2013EN 823:2013 (E) 7 7 Procedure 7.1 Test conditions The test shall be carried out at (23 5) C. In cases of dispute, it shall be carried out at (23 2) C and (50 5) % relative humidity. 7.2 Test procedure Lay the test specimen carefully on the flat rigid base plate, en
39、suring that the measuring area is in contact with the base plate. Test specimens faced or coated on one side shall be placed with the facing or coating against the base plate. Place the pressure plate on the test specimen, exerting a total pressure of either (50 1,5) Pa or (250 5) Pa at a designated
40、 position with the dial gauge centrally located. Take two measurements for test specimens of lengths less than or equal to 600 mm, four measurements for test specimens greater than 600 mm and less than or equal to 1 500 mm in length, and one additional measurement for each additional 500 mm exceedin
41、g 1 500 mm in length. Take the measurements d1, d2, . and dnat positions on the surface, as shown in Figure 2. Measure to an accuracy in accordance with 5.1. BS EN 823:2013EN 823:2013 (E) 8 Key b width d1, d2.dnmeasurement positions on the surface Figure 2 Positions for measurements 8 Calculation an
42、d expression of results The thickness of the test specimen shall be expressed in millimetres, to the nearest millimetre, as the mean value of the measurements made at all the points for the test specimen (see Figure 2)1). 9 Accuracy of measurement NOTE It has not been possible to include a statement
43、 of the accuracy of the method in this edition of the standard, but it is intended to include such a statement when the standard is next revised. BS EN 823:2013EN 823:2013 (E) 9 10 Test report The test report shall include the following information: a) reference to this European Standard; b) product
44、 identification: 1) product name, factory, manufacturer or supplier; 2) production code number; 3) type of product; 4) packaging; 5) the form in which the product arrived at the laboratory; 6) other information as appropriate, e.g. nominal density; c) test procedure: 1) pre-test history and sampling
45、 (e.g. who sampled and place of sampling); 2) conditioning; 3) deviations from Clauses 6 and 7, if any; 4) date of test; 5) general information relating to the test including the pressure; 6) any occurrences which may have affected the results. Information about the apparatus and identity of the tec
46、hnician should be available in the laboratory, but it need not be recorded in the report; d) results: all individual values and the mean value. BS EN 823:2013EN 823:2013 (E) 10 Annex A (normative) Preparation of test specimens for compressed products Before thickness measurements are taken, products
47、 which have been compressed in the package, and which in the package have a thickness less than 90 % of the nominal thickness, shall be prepared in accordance with a) to d). Roll insulation shall be completely unrolled and cut into pieces, 1 m to 1,5 m long. The first and last 0,5 m length of roll s
48、hall be discarded. a) Hold the piece vertically in both hands by a long edge so that the other long edge is approximately 450 mm above the floor. b) Drop the piece once so that it strikes the floor. c) Repeat operations a) and b) on the opposite edge for all test specimens in the package and for all
49、 pieces cut from a roll. d) Wait at least 5 min for the pieces to reach a state of equilibrium before taking any measurements. BS EN 823:2013EN 823:2013 (E) 11 Annex B (normative) Examples of other methods for the determination of thickness B.1 Pin-and-plate method B.1.1 General This method gives the same results with the same accuracy as the reference method, but only for those products which can be penetrated by the pin without changing the th
