1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12085:2013Thermal insulating productsfor building applications Determination of lineardimensions of test specimensBS EN 12085:2013 BRITISH STANDARDNational forewordThis Bri
2、tish Standard is the UK implementation of EN 12085:2013. Itsupersedes BS EN 12085:1997 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/540, Energy performance of materials components andbuildings.A list of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 c
3、an 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 2013ISBN 978 0 580 78049 3 ICS 91.100.60 Co
4、mpliance 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 31 March 2013.Amendments issued since publicationDate Text affectedBS EN 12085:2013EUROPEAN STANDARD NORME EUROPENN
5、E EUROPISCHE NORM EN 12085 March 2013 ICS 91.100.60 Supersedes EN 12085:1997English Version Thermal insulating products for building applications - Determination of linear dimensions of test specimens Produits isolants thermiques destins aux applications du btiment - Dtermination des dimensions lina
6、ires des prouvettes Wrmedmmstoffe fr das Bauwesen - Bestimmung der linearen Mae von Probekrpern 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 t
7、he 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 European Standard exists in three official versions (English, Fre
8、nch, 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 are the national standards bodies of Austria, Belgium, Bulgaria
9、, 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey
10、 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 means reserved worldwide for CEN national Members. Ref. No. EN 120
11、85:2013: EBS EN 12085:2013EN 12085:2013 (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 . 6 8 Calculation and expression of results 8 9 Accuracy of measurement . 8 10 Test report 8 Bibliograp
12、hy 9 BS EN 12085:2013EN 12085:2013 (E) 3 Foreword This document (EN 12085:2013) 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 standard, either by
13、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 rights. CEN and/or
14、 CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12085:1997. 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 series of standa
15、rds 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 21 December 1988 on the approximation of laws, reg
16、ulations 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 may also be used in other areas where it is relev
17、ant. This European test standard is one of the following group of inter-related 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, Thermal insulating products for building applicat
18、ions 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 products for building applications Determination of fla
19、tness 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 building applications Determination of dimensional
20、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, Thermal insulating products for building applications
21、 Determination of deformation under specified compressive load and temperature conditions EN 1606, Thermal insulating products for building applications Determination of compressive creep BS EN 12085:2013EN 12085:2013 (E) 4 EN 1607, Thermal insulating products for building applications Determination
22、 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 water absorption by partial immersion EN 12085, Th
23、ermal 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 products for building applications Determination
24、 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 bending behaviour EN 12090, Thermal insulating product
25、s 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 moisture equilibrium under specified temperature and hu
26、midity 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 products EN 13793, Thermal insulating products for bu
27、ilding 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 organisations of the following countries are bound to implem
28、ent 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, Netherlands, Norway, Poland, Portugal, Romania,
29、Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12085:2013EN 12085:2013 (E) 5 1 Scope This European Standard specifies the characteristics and choice of measuring equipment and the procedure for determining the linear dimensions of test specimens which are taken
30、from thermal insulating products. The procedures for measuring the dimensions of full size products are specified in EN 822 and EN 823. 2 Normative references Not applicable. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 linear dimension di
31、stance between two points, between two parallel lines or between two parallel planes, defined by corners, edges or surfaces of the test specimen 3.2 test specimen single item or part of an item used for a test 4 Principle The linear dimensions of a test specimen are measured using an apparatus givin
32、g the required degree of accuracy. 5 Apparatus 5.1 Flat surface, larger than the largest dimensions of the test specimen. 5.2 Dial gauge, permitting reading to at least 0,05 mm. The measuring surface shall be of such a size that the total resultant measuring pressure is 1 kPa. The measuring pressure
33、 of the dial gauge can be reduced by removing the spring. The dial gauge, or any other electrical or optical measuring instrument having at least the same accuracy, can be fixed to a device to adapt the testing equipment to the size of the test specimen. 5.3 Micrometer, permitting readings to at lea
34、st 0,05 mm. A micrometer shall only be used if it incorporates a device which indicates the onset of the force applied by the micrometer when it contacts the test specimen surface. An example of such a device is an electrical circuit, consisting of a flexible wire, battery, lamp and an aluminium pla
35、te exerting a pressure of (50 1,5) Pa on the test specimen. An example of such an apparatus is given in Figure 1. 5.4 Sliding caliper, permitting readings to at least 0,1 mm. The sliding caliper shall only be used if it does not cause any deformation of the test specimen. 5.5 Metal rule or metal tap
36、e, graduated in millimetres and permitting reading to at least 0,5 mm. Any test equipment which provides the same result with at least the same accuracy may be used. BS EN 12085:2013EN 12085:2013 (E) 6 Key 1 screw micrometer 2 millimetre scale 3 adjustable support 4 lamp 5 battery 6 aluminium plate,
37、 10 cm27 test specimen 8 base plate Figure 1 Example of apparatus conforming to 5.3 6 Test specimens The number, dimensions and conditioning of test specimens shall be as defined in the relevant test method standard or any other European Technical Specification. 7 Procedure 7.1 Test conditions The t
38、est conditions shall be as defined in the relevant test method standard or any other European Technical Specification. 7.2 Choice of measuring equipment The choice of measuring equipment shall be in accordance with the required accuracy of the measured value as given in the relevant test method stan
39、dard or any other European Technical Specification. Where no such standard or specification exists, the required accuracy shall be agreed between parties, but it shall correspond to the dimensions to be measured. BS EN 12085:2013EN 12085:2013 (E) 7 If the required accuracy of the dimension is expres
40、sed in millimetres, the choice of the equipment shall be as shown in Table 1. Table 1 Choice of equipment related to required accuracy in millimeters Required accuracy Measuring equipment Readings to the nearest Median of readings at each position rounded to the nearest mm mm mm 0,1 dial gauge or mi
41、crometera 0,05 0,1 0,2 sliding caliperb 0,1 0,2 1,0 metal tape or rulec 0,5 1,0 aA dial gauge shall only be used if the result is unaffected by dial gauge pressure up to 1 kPa. bA dial gauge or a micrometer may also be used, but then the instrument accuracy need be no better than that of a sliding c
42、aliper. cA sliding caliper or even a dial gauge or micrometer may be used, but then the instrument accuracy need be no better than that of the metal tape or rule. Table 2 shall be used to provide the means for the selection of the equipment to be used where the accuracy is expressed in percentage te
43、rms. The choice depends on both the required accuracy and on the test specimen dimensions. Table 2 Choice of equipment related to required accuracy in percent Required accuracy % Measuring equipment / range of dimensions 20 mm to 100 mm 0,5 to 1 dial gauge or micrometera sliding caliperbmetal tape o
44、r rulec1 to 2 sliding caliperb sliding caliperbmetal tape or rulec2 sliding caliperbmetal tape or rulec metal tape or rulecaA dial gauge shall only be used if the result is unaffected by dial gauge pressure up to 1 kPa. bA dial gauge or a micrometer may also be used, but then the instrument accuracy
45、 need be no better than that of a sliding caliper. cA sliding caliper or even a dial gauge or micrometer may be used, but then the instrument accuracy need be no better than that of the metal tape or rule. 7.3 Number and location of measurements The number of the measuring locations shall depend on
46、the size and the shape of the test specimen, but shall be at least two. The locations shall be as widely separated as possible, in order to give a good mean value. If the median of three readings at each position is taken, the mean shall be calculated from the two or more median values. NOTE The med
47、ian value at each position is taken because it is easier to keep in mind the majority of the measured values instead of noting all single values and calculating the mean value. 7.4 Measurement with dial gauge The measurement shall be made with the test specimen placed on a flat surface. BS EN 12085:
48、2013EN 12085:2013 (E) 8 The measurements shall be made with and without the test specimen. The difference between the two measurements gives one reading. All readings shall be made to the nearest 0,05 mm. The mean value calculated shall be rounded to the nearest 0,1 mm. 7.5 Measurement with micromet
49、er The measurement shall be made with the test specimen placed on a flat surface. The micrometer shall be fixed to an adjustable support (see example in Figure 1). The measuring point of the micrometer shall be screwed down continuously until it just touches the test specimen, as indicated by the surface contact device. The measurements shall be made with and without the test specimen. The difference between the two measurements gives one reading. All readings
