BS EN 14707-2012 Thermal insulating products for building equipment and industrial installations Determination of maximum service temperature for preformed pipe insulation《建筑设备和工业装.pdf

《BS EN 14707-2012 Thermal insulating products for building equipment and industrial installations Determination of maximum service temperature for preformed pipe insulation《建筑设备和工业装.pdf》由会员分享，可在线阅读，更多相关《BS EN 14707-2012 Thermal insulating products for building equipment and industrial installations Determination of maximum service temperature for preformed pipe insulation《建筑设备和工业装.pdf（24页珍藏版）》请在麦多课文档分享上搜索。

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 14707:2012Thermal insulating productsfor building equipment andindustrial installations Determination of maximumservice temperature forpreformed pipe insulationCopyright Eu

2、ropean Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14707:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14707:2012. Itsupersedes BS EN 14707:20

3、05+A1:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/540, Energy performance of materials components andbuildings.A list of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 secretary.This publication does not purport

4、to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013 ISBN 978 0 580 77440 9 ICS 91.100.60 Compliance with a British Standard cannot confer immunity fromlegal obligations.

5、This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2013. Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproducti

6、on or networking permitted without license from IHS-,-,-BS EN 14707:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14707 October 2012 ICS 91.100.60 Supersedes EN 14707:2005+A1:2007English Version Thermal insulating products for building equipment and industrial installations - Determinatio

7、n of maximum service temperature for preformed pipe insulation Produits isolants thermiques pour lquipement du btiment et les installations industrielles - Dtermination de la temprature maximale de service des coquilles isolantes prformes Wrmedmmstoffe fr die Haustechnik und fr betriebstechnische An

8、lagen - Bestimmung der oberen Anwendungsgrenztemperatur von vorgeformten Rohrdmmstoffen This European Standard was approved by CEN on 24 August 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status

9、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, French, Germa

10、n). 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, Croatia,

11、 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 and Unite

12、d Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14707:2012: E

13、Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14707:2012EN 14707:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle

14、 45 Apparatus .46 Test specimens 76.1 Dimensions of test specimens .76.2 Number of test specimens 76.3 Conditioning of test specimens .87 Procedure .87.1 Test conditions 87.2 Test procedure .88 Calculation and expression of results .98.1 Thickness deformation versus time 98.2 Additional tests and/or

15、 observations . 118.3 Internal self heating 119 Accuracy of measurement . 1110 Test report . 11Annex A (normative) Modifications of and additions to the general test method for mineral wool products . 13A.1 Introduction . 13A.2 Dimensions of test specimens 13A.3 Procedure 13A.3.1 Test conditions . 1

16、3A.3.2 Test procedure 13A.4 Additional tests and/or observations . 13A.5 Test for internal self-heating . 13Annex B (normative) Modifications of and additions to the general test method for polyethylene foam (PEF) and flexible elastomeric foam (FEF) products. 15B.1 Introduction . 15B.2 Apparatus 15B

17、.3 Dimensions of test specimens 15B.4 Test procedure 16B.5 Dimensional changes . 17Annex C (normative) Modifications of and additions to the general test method for phenolic foam products . 18C.1 Introduction . 18C.2 Conditioning of test specimens 18C.3 Test procedure 18C.4 Additional tests and/or o

18、bservations . 18Bibliography . 20Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14707:2012EN 14707:2012 (E) 3 Foreword This document (EN 14707:2012) has been prepared by T

19、echnical 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 publication of an identical text or by endorsement, at the latest by April 2013, and conflicting natio

20、nal standards shall be withdrawn at the latest by April 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 CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes

21、 EN 14707:2005+A1:2007. The main technical changes that have been made in this new version of EN 14707 are: a) 6.1, Dimensions of test specimens has been modified; b) B.3, Dimension of test specimens has been completed. This European Standard is one of a series of European Standards which specify te

22、st 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, regulations and adminis

23、trative 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 prepared for products used to insulate building equipment and industrial installations, but it may also be applied

24、 to products used in other areas. A similar standard is available for testing of flat products: EN 14706, Thermal insulating products for building equipment and industrial installations Determination of maximum service temperature. According to the CEN/CENELEC Internal Regulations, the national stan

25、dards organisations 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, L

26、uxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without licens

27、e from IHS-,-,-BS EN 14707:2012EN 14707:2012 (E) 4 1 Scope This European Standard specifies the equipment and procedures for determining the maximum service temperature for preformed pipe insulation. It is applicable to thermal insulating products. 2 Normative references The following documents, in

28、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 edition of the referenced document (including any amendments) applies. EN 12429, Thermal insulating produc

29、ts for building applications Conditioning to moisture equilibrium under specified temperature and humidity conditions EN 13467, Thermal insulating products for building equipment and industrial installations Determination of dimensions, squareness and linearity of preformed pipe insulation EN 14706,

30、 Thermal insulating products for building equipment and industrial installations Determination of maximum service temperature 3 Terms and definitions For the purposes of this document, the following term and definition applies. 3.1 maximum service temperature highest temperature at which the insulat

31、ion product, when installed a the recommended thickness in a given application, continues to function within specified limits of performance SOURCE: EN ISO 9229:2007, 2.6.9.1 Note 1 to entry: The required performance may be in the areas of dimensional stability, thermal properties, and mechanical pr

32、operties as well as changes in appearance and resistance against creation of hazards such as internal self-heating (see annexes and requirements in the relevant product standard). Note 2 to entry: In the present test procedure, which is used as a reference, the test specimen is exposed to a temperat

33、ure difference going from ambient to the maximum service temperature. This may not reflect the actual application conditions when products are exposed to different temperatures on the two main faces, e.g. in multi-layer systems or for faced products where the facing may limit the maximum service tem

34、perature. 4 Principle Measure thickness and length after one sided heat treatment for a specified time period, at the maximum service temperature, achieved using a specified rate of temperature increase. The thickness of the test specimen is measured during heat treatment and the length only after c

35、ooling to ambient temperature. The procedure may be an iterative process. Additional requirements for assessing the maximum service temperature of specific materials are described in normative annexes to this European Standard or the relevant product standard or any other European Technical Specific

36、ation. 5 Apparatus A general arrangement of the apparatus is indicated in Figure 1 and is comprised of: Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14707:2012EN 14707:2

37、012 (E) 5 5.1 Hot pipe, with a uniform temperature distribution in the measuring zone on the hot surface and a heat flux perpendicular to the surface of the pipe within the measuring zone (two pipes are required, with diameters that fulfil the requirements of 6.1). The hot pipe shall be linear to wi

38、thin 1 mm in the measuring zone at ambient temperature. The hot pipe shall be capable of being controlled to within 2 % of a predetermined temperature 10 C whichever is smaller over the central 60 % of the total pipe length. The hot pipe shall be capable of being heated at 50 C/h and/or 300 C/h. 5.2

39、 End insulation, with a gap as small as possible between end insulation and guard piece of the test specimen (e.g. 3 mm) which will permit free movement during the test of the test specimen. 5.3 Temperature sensors, (e.g. thermocouples) capable of recording the hot surface temperature of the test pi

40、pe to the nearest 1 % in centigrade but not less than 1 C, which are placed within grooves on the hot pipe. 5.4 Flexible metal foil, 3 pieces, (e.g. brass) capable of exerting a uniform pressure of 500 Pa on the upper surface of the test specimen along its testing length of (500 5) mm and the two en

41、d guards, length (250 5) mm. The pressure shall be calculated using the area: e.g. the test length of 500 mm times the diameter of the hot pipe. 5.5 Device, e.g. electromechanical for measuring the thickness of the test specimen during the test to the nearest 0,1 mm. When determining the thickness o

42、f the test specimen, the thermal movement of the apparatus (e.g. quartz rod) shall be taken into account up to the maximum service temperature. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license

43、 from IHS-,-,-BS EN 14707:2012EN 14707:2012 (E) 6 Dimensions in millimetres Key 1 device for measuring thickness, e. g. electromechanical device 2a test length of the test specimen 2b test specimen end guard 3 end insulation 4 small gap 5 circumferential joints 6 thermocouples 7 hot pipe 8 power sup

44、ply and temperature control l length of the hot pipe between the end insulation a) General arrangement Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 14707:2012EN 14707:20

45、12 (E) 7 Dimensions in millimetres Key 1 device for measuring thickness, e.g. electromechanical device 2 thermocouple 3 hot pipe 4 test specimen 5 flexible metal foil 6 weights for loading b) Test specimen loading arrangement Figure 1 Example of an apparatus for determining maximum service temperatu

46、re 6 Test specimens 6.1 Dimensions of test specimens a) Length: The test specimen, length (1 000 10) mm, shall be cut at right angles to its length to give two end guards, length each (250 5) mm, and a test length of (500 5) mm. b) Thickness: The thickness shall be 100 mm or the largest thickness be

47、low 100 mm available. c) Inside diameter: Two sizes shall be tested, in the range 22 mm to 220 mm. The dimensions shall be as specified in the relevant product standard or annex to this European Standard. In the absence of a product standard or any other European Technical Specification, the dimensi

48、ons may be agreed between parties. Testing may be performed on multi-layer systems to simulate the conditions existing in the application. If the pipe insulation is cut from a homogeneous, isotropic flat product, then the maximum service temperature can be obtained from tests carried out on the flat product with similar properties in accordance with EN 14706. 6.2 Number of test specimens The number of test specimens shall be as specified in the relevant product standard. If the number is not specified, then at least one