DIN EN 13472-2013 Thermal insulating products for building equipment and industrial installations Determination of short term water absorption by partial immersion of preformed pip.pdf

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1、January 2013 Translation by DIN-Sprachendienst.English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 91.100.60!$gU“1936850www.din.deDDIN EN 13472Thermal insulating products for building equipment and industrialinstallations Determination of short term water absorption by partial immersion ofpreformed pipe insulation;English version EN 13472:2012,English translation of DIN EN 13472:2013-01Wrmedmms

3、toffe fr die Haustechnik und fr betriebstechnische Anlagen Bestimmung der Wasseraufnahme bei kurzzeitigem teilweisem Eintauchen vonvorgeformten Rohrdmmstoffen;Englische Fassung EN 13472:2012,Englische bersetzung von DIN EN 13472:2013-01Produits isolants thermiques pour lquipement du btiment et les i

4、nstallationsindustrielles Dtermination de labsorption deau court terme par immersion partielle des coquillesisolantes prformes;Version anglaise EN 13472:2012,Traduction anglaise de DIN EN 13472:2013-01SupersedesDIN EN 13472:2001-12www.beuth.deIn case of doubt, the German-language original shall be c

5、onsidered authoritative.Document comprises 15pages12.12 DIN EN 13472:2013-01 2 A comma is used as the decimal marker. National foreword This document (EN 13472:2012) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating materials and products” (Secretariat: DIN, Germany) The respons

6、ible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-56-69 AA Dmmstoffe fr betriebs-technische Anlagen in Gebuden und in der Industrie. Amendments This standard differs from DIN EN 13472:2001-12 a

7、s follows: a) Figure 1 has been corrected; b) Subclause 5.3 “Tap water” has been supplemented. Previous editions DIN EN 13472: 2001-12 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13472 October 2012 ICS 91.100.60 Supersedes EN 13472:2001English Version Thermal insulating products for buildin

8、g equipment and industrial installations - Determination of short term water absorption by partial immersion of preformed pipe insulation Produits isolants thermiques pour lquipement du btiment et les installations industrielles - Dtermination de labsorption deau court terme par immersion partielle

9、des coquilles isolantes prformes Wrmedmmstoffe fr die Haustechnik und fr betriebstechnische Anlagen - Bestimmung der Wasseraufnahme bei kurzzeitigem teilweisem Eintauchen von vorgeformten Rohrdmmstoffen This European Standard was approved by CEN on 24 August 2012. CEN members are bound to comply wit

10、h 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 national standards may be obtained on application to the CEN-CENELEC Manag

11、ement 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 language and notified to the CEN-CENELEC Management Centre has the same sta

12、tus 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, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt

13、a, 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 Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights

14、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13472:2012: EEN 13472:2012 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions .44 Principle 45 Apparatus .46 Test specimens 66.1 Dimensions of test specimens .66.

15、2 Preparation of test specimens .66.3 Number of test specimens 66.4 Conditioning of test specimens .77 Procedure .77.1 Test conditions 77.2 Test procedure .77.2.1 General 77.2.2 Method A (drainage) 77.2.3 Method B (deduction of initial water uptake) 78 Calculation and expression of results .89 Accur

16、acy of measurement 910 Test report 9Annex A (informative) Table with examples of calculation of the length of test specimens . 10Bibliography . 13Tables Table A.1 Examples of calculation of the length of test specimens 10DIN EN 13472:2013-01 EN 13472:2012 (E) 3 Foreword This document (EN 13472:2012)

17、 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 publication of an identical text or by endorsement, at the latest by April 2013

18、, and conflicting national 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. T

19、his document supersedes EN 13472:2001. The following main technical changes have been done on this new edition of EN 13472: a) Figure 1 has been corrected; b) Subclause 5.3, Tap water has been supplemented. This European Standard has been prepared for products used to insulate building equipment and

20、 industrial installations, but it may also be applied to products used in other areas. This 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 f

21、or 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 construction products (Directive 89/106/EEC) through the consideration of the essential re

22、quirements. 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, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

23、 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. DIN EN 13472:2013-01 EN 13472:2012 (E) 4 1 Scope This European Standard spe

24、cifies the equipment and procedures for determining the short term water absorption of preformed pipe insulation by partial immersion in water. It is applicable to thermal insulating products. NOTE It is intended to simulate the water absorption caused by exposure to rain for 24 h during product ins

25、tallation. If the pipe insulation is cut from a flat product, then the short term water absorption by partial immersion can be obtained from tests carried out on the flat product with similar properties in accordance with EN 1609, providing the test is carried out in the direction giving the highest

26、 water uptake. 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 edition of the referenced document (incl

27、uding any amendments) applies. EN 13467, Thermal insulating products for building equipment and industrial installations Determination of dimensions, squareness and linearity of preformed pipe insulation 3 Terms and definitions This European Standard contains no terms and definitions. 4 Principle Th

28、e short term water absorption by partial immersion is determined by measuring the change in mass of a test specimen, the lower part of which is in contact with water for a period of 24 h. The excess water adhering to the surface and not absorbed by the test specimen is drained off in method A, or ca

29、lculated in method B, from the initial water uptake. 5 Apparatus 5.1 Balance capable of determining the mass of a test specimen to an accuracy of 0,1 g or 0,5 %, whichever is less. 5.2 Water tank with a device for keeping the water level constant to within 2 mm, and a device to keep the test specime

30、n in the required position during the test (see examples in Figures 1a) and 1b). The supporting device shall be such that the test specimen contact area with water shall be at least 85 % and such that the original form of the test specimen is maintained. 5.3 Tap water adjusted to a temperature of (2

31、3 5) C. In case of dispute, deionised water shall be used. 5.4 Equipment for drainage (see examples in Figures 2a) and 2b). DIN EN 13472:2013-01 EN 13472:2012 (E) 5 Dimensions in millimetres a) Example for D0 300 mm b) Example for D0 300 mm Key 1 water tank 2 load to keep the test specimen in positi

32、on 3 stainless steel mesh 4 test specimen Figure 1 Examples of partial immersion test devices DIN EN 13472:2013-01 EN 13472:2012 (E) 6 a) b)Key 1 stainless steel mesh 2 test specimen 3 perforated stainless steel Figure 2 Examples of equipment for drainage 6 Test specimens 6.1 Dimensions of test spec

33、imens Test specimens shall be prepared from the product without reducing the original thickness. In the event that the outside diameter of the product is 300 mm, the test specimen shall have one face with an area equal to the full cross sectional area of the product or half the original cross sectio

34、nal area. For products with outside diameters 300 mm, the face shall be a segment of the cross section with an outside chord length of (300 10) mm. The length of the test specimen shall be adjusted so that the area of the immersed cylindrical surface will be (40 000 400) mm. 6.2 Preparation of test

35、specimens The test specimens shall be cut so that they do not include product ends. 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. NOTE Special methods of preparation, when needed, are sp

36、ecified in the relevant product standard. For products with a thickness 25 mm, the ends shall be closed to avoid water pickup on the inner main surface of the test specimen (e.g. by use of glued aluminium foil on the ends). 6.3 Number of test specimens The number of test specimens shall be as specif

37、ied in the relevant product standard. If the number is not specified, then at least three 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. DIN EN 13472:2013-01 EN 13472:2012 (

38、E) 7 6.4 Conditioning of test specimens The test specimens shall be stored for at least 6 h at (23 5) C. In case of dispute, they shall be stored at (23 2) C and (50 5) % relative humidity for the time specified in the relevant product standard. 7 Procedure 7.1 Test conditions The test shall be carr

39、ied out at (23 5) C. In case of dispute it shall be carried out at (23 2) C and (50 5) % relative humidity. 7.2 Test procedure 7.2.1 General The choice of the method A or B shall be as specified in the relevant product standard. In the absence of a product standard or any other European Technical Sp

40、ecification, the method A or B may be agreed between parties. The dimensions of the test specimens shall be measured in accordance with EN 13467. 7.2.2 Method A (drainage) Weigh the test specimen to the nearest 0,1 g or 0,5 %, whichever is less, to determine its initial mass m0. Place the test speci

41、men with the outside surface downwards in the empty water tank and apply a sufficient load to keep the test specimen partially immersed when water is added. Carefully adjust the water added to the tank until the lowest point of the outside face of the test specimen is (20 2) mm below the surface of

42、the water (see examples in Figures 1a) and 1b). Ensure that the water level remains constant during the test. Remove the test specimen after 24 h and drain it for (10 0,5) min by placing it supported on the exterior surface on a mesh, inclined at 45, as shown in Figure 2a) or 2b). Weigh the test spe

43、cimen again to determine the mass m24. 7.2.3 Method B (deduction of initial water uptake) Weigh the test specimen to the nearest 0,1 g or 0,5 %, whichever is less, to determine its initial mass m0. Place the test specimen with the outside surface downwards in the water tank in such position that it

44、is partially immersed in water with the lowest point of the outside face of the test specimen (20 2) mm below the water level. Remove the test specimen after 10 s holding it horizontally and place it within 5 s in a plastic tray of known mass. Reweigh this tray with the test specimen to determine th

45、e mass of the test specimen including the initial water uptake m1. Replace the test specimen in the water tank in the same position and apply a sufficient load to keep the test specimen partially immersed in water, with the lowest point of the outside face of the test specimen (20 2) mm below the wa

46、ter level (see examples in Figures 1a) and 1b). Ensure that the water level remains constant during the test. Remove the test specimen after 24 h, holding it horizontally and place it within 5 s in the plastic tray of known mass to determine the mass m24. Method B is only applicable if the initial w

47、ater uptake is: DIN EN 13472:2013-01 EN 13472:2012 (E) 8 2p01kg/m5,0Amm(1) where 1mis the mass of the test specimen including the initial water uptake in method B, in kilograms; 0m is the initial mass of the test specimen as determined in method B, in kilograms; pA is the immersed cylindrical surfac

48、e area of the test specimen, in square metres. 8 Calculation and expression of results The test result shall be the mean value of the individual values. NOTE Results obtained with test specimens of different outside diameters and thicknesses might not be comparable. Calculate the short term water absorption by partial immersion, Wp, in kilograms per square metre using the following formulae: Method A (drainage) p024pAmmW= (