EN ISO 15148-2002 en Hygrothermal performance of building materials and products - Determination of water absorption coefficient by partial immersion (Incorporates Amendment A1 201.pdf

1、BRITISH STANDARDBS EN ISO 15148:2002Hygrothermal performance of building materials and products Determination of water absorption coefficient by partial immersionThe European Standard EN ISO 15148:2002 has the status of a British StandardICS 91.100.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56

2、g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 15148:2002 +A1:2016BS EN ISO 15148:2002+A1:2016ISBN 978 0 580 87956 2Amendments/corrigenda issued since publicationDate Comments31 March 20

3、16 Implementation of ISO amendment 1:2016 with CEN endorsement A1:2016: Table 1 and Annex ZA updatedThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2003 The British Standards Institution 2016. Published by BSI Standards Limited 2016N

4、ational forewordThis British Standard is the UK implementation of EN ISO 15148:2002+A1:2016. It is identical to ISO 15148:2002, incorporating amendment 1:2016. It supersedes BS EN ISO 15148:2002, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/540, E

5、nergy performance of materials, components and buildings.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.Compli

6、ance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 15148December 2002ICS 91.100.01English versionHygrothermal performance of building materials and products -Determination of water absorption coefficient by partialimmersio

7、n (ISO 15148:2002)Performance hygrothermique des matriaux et produitspour le btiment - Dtermination du coefficient dabsorptiondeau par immersion partielle (ISO 15148:2002)Wrme- und feuchtetechnisches Verhalten von Baustoffenund Bauprodukten - Bestimmung desWasseraufnahmekoeffizienten bei teilweisem

8、Eintauchen(ISO 15148:2002)This European Standard was approved by CEN on 24 June 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists an

9、d bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility

10、of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands

11、, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2002 CEN All rights of exploitation in any form and by any means reservedworldwid

12、e for CEN national Members.Ref. No. EN ISO 15148:2002 EEN ISO 15148:2002+A1February 2016immersion (ISO 15148:2002+A1:2016)EN ISO 15148:2002 (E)3ForewordThis document EN ISO 15148:2002 has been prepared by Technical Committee CEN/TC 89 “Thermalperformance of buildings and building components“, the se

13、cretariat of which is held by SIS, in collaboration withTechnical Committee ISO/TC 163 “Thermal insulation“.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by June 2003, and conflicting national stand

14、ards shall be withdrawn at the latest byJune 2003.This standard is one of a series of standards which specify test methods for the thermal and moisture relatedproperties of building materials and products.NOTE Normative references to International Standards are listed in annex ZA (normative).Annex A

15、 is informative, annex ZA is normative.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy,

16、 Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.BS EN ISO 15148:2002+A1:2016EN ISO 15148:2002+A1:2016 (E)Foreword to amendment A1This document (EN ISO 15148:2002/A1:2016) has been prepared by Technical Committee ISO/TC 163 “Thermal performance and

17、energy use in the built environment” in collaboration with Technical Committee CEN/TC 89 “Thermal performance of buildings and building components” the secretariat of which is held by SIS.This Amendment to the European Standard EN ISO 15148:2002 shall be given the status of a national standard, eith

18、er by publication of an identical text or by endorsement, at the latest by August 2016, and conflicting national standards shall be withdrawn at the latest by August 2016.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or

19、CENELEC shall not be held responsible for identifying any or all such patent rights.This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association.According to the CEN-CENELEC Internal Regulations, the national standards organizations

20、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, Luxembourg, Malta, Ne

21、therlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement noticeThe text of ISO 15148:2002/Amd 1:2016 has been approved by CEN as EN ISO 15148:2002/A1:2016 without any modification.2EN ISO 15148:2002 (E)2ContentspageForewo

22、rd3Introduction .41 Scope 42 Normative references53 Terms and definitions .54 Principle65 Apparatus.66 Test specimens67 Procedure.78 Calculation and expression of results 99 Accuracy of measurement1110 Test report 11Annex A (informative) Liquid transport phenomena in building materials .13Annex ZA (

23、normative) Normative references to international publications with their relevantEuropean publications .15Bibliography 16EN ISO 15148:2002 (E)2ContentspageForeword3Introduction .41 Scope 42 Normative references53 Terms and definitions .54 Principle65 Apparatus.66 Test specimens67 Procedure.78 Calcul

24、ation and expression of results 99 Accuracy of measurement1110 Test report 11Annex A (informative) Liquid transport phenomena in building materials .13Annex ZA (normative) Normative references to international publications with their relevantEuropean publications .15Bibliography 16BS EN ISO 15148:20

25、02+A1:2016ISO 15148:2002+A1:2016 (E)3EN ISO 15148:2002 (E)4IntroductionThe movement of moisture within hygroscopic capillary building materials is a combination of vapour and liquidflows which have complex interactions with the temperature and humidity gradients and the properties of thematerials pr

26、esent. Three stages can be identified.a) At very low humidities transport is by vapour diffusion alone and the permeability can be derived from dry-cuptests, defined in ISO 12572.b) At higher relative humidities in the hygroscopic region, up to about 95 % relative humidity, there is a mixture ofgas

27、and water filled pores with simultaneous flows of vapour and liquid. The increasing liquid flow causes theexponentially increasing permeability measured by cup tests under isothermal conditions. However, underpractical, non-isothermal conditions this liquid flow could increase, or decrease, the tota

28、l mass flow.c) Above about 95 % relative humidity, depending on the material, the total mass transport is governed by transportin the liquid phase. This is the situation that arises when a material is dipped in water or severely wetted e.g. bydriving rain. The water moves under the hydraulic pressur

29、e, the negative suction pressure. After the watersource is removed, the hydraulic pressure ceases and the liquid is redistributed within the material at a differentrate (stages b) and c) do not necessarily apply to all hygroscopic materials).Methods are currently being developed in research laborato

30、ries to quantify capillary transport and measure therelevant coefficients. At present, however, these involve sophisticated measuring techniques such as gamma rayand neutron absorption or Nuclear Magnetic Resonance (NMR) spectroscopy together with complex mathematicalmethods to analyse the results:

31、comparisons between laboratories have shown that further work is needed todevelop standard techniques. It will, therefore, be a number of years before it is possible to standardise suchmethods - see annex A for further information.At present it is possible to standardise the measurement of the absor

32、ption of liquid water into the surface of amaterial, which gives an indicator of its liquid transport performance.1 ScopeThis European Standard specifies a method for determining, by partial immersion with no temperature gradient, theshort-term liquid water absorption coefficient. It is intended to

33、assess the rate of absorption of water, by capillaryaction from continuous or driving rain during on site storage or construction, by insulating and other materials,which are normally protected. The method is suitable for renders or coatings tested in conjunction with thesubstrate on which they are

34、normally mounted.It is not intended to assess the absorption of water by materials used under water or in overall contact withsaturated ground, where a total immersion test is more appropriate.BS EN ISO 15148:2002+A1:2016ISO 15148:2002+A1:2016 (E)EN ISO 15148:2002 (E)52 Normative referencesThis Euro

35、pean Standard incorporates by dated or undated reference, provisions from other publications. Thesenormative 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 any of these publications

36、apply to thisEuropean Standard only when incorporated in it by amendment or revision. For undated references the latestedition of the publication referred to applies (including amendments).ISO 9346, Thermal insulation - Mass transfer - Physical quantities and definitions.3 Terms and definitions3.1 D

37、efinitionsFor the purposes of this European Standard, the terms and definitions given in ISO 9346 and the following apply.3.1.1water absorption coefficientmass of water absorbed by a test specimen per face area and per square root of timeNOTE See equation (2) in clause 8.3.1.2homogeneous materialmat

38、erial the properties of which are uniform on a macroscopic scale3.2 Symbols and unitsSymbol Quantity UnitA face area m2Awwater absorption coefficient kg/(m2s0,5)Awtwater absorption coefficient related to aspecific time, t, in secondskg/(m2s0,5)mtmass gain per face area after time t kg/m2Miinitial ma

39、ss of specimen kgmtmass of specimen after time t kgt time s or hWwwater absorption coefficient kg/(m2h0,5)Wwtwater absorption coefficient related to aspecific time, t, in hourskg/(m2h0,5)NOTE Water absorption coefficient is defined in terms of seconds in EN ISO 9346. The alternative definition in te

40、rms of hoursis widely used.BS EN ISO 15148:2002+A1:2016ISO 15148:2002+A1:2016 (E)EN ISO 15148:2002 (E)64 PrincipleThe water absorption by partial immersion is determined by measuring the change in mass of the test specimen,the bottom surface of which is in contact with water, over a period which is

41、usually at least 24 h.The water adhering to the surface and not absorbed by the product is completely removed by, for example, blottingwith a sponge before the specimen is weighed.5 ApparatusThe test apparatus shall include:a) balance, capable of weighing a test specimen to an accuracy of 0,1 % of t

42、he mass of the specimen;b) water tank with a device for keeping the water level constant to 2 mm and a device to keep the test specimenin position. The tank shall include point supports, which do not damage the specimen, to keep the specimen atleast 5 mm clear of the base;c) timer accurate to at lea

43、st one second in 24 h.6 Test specimens6.1 Shape of test specimensTest specimens shall be representative of the material or product and of regular shape with constant cross sectionto ensure one dimensional water flow. The faces shall be free from surface irregularities.6.2 Dimensions of test specimen

44、s6.2.1 AreaThe water contact area of each test specimen shall be at least 50 cm2. However, in the case of materials includingmacroscopic particles such as aggregates, the side of a square specimen or the smallest diameter of the face shallbe at least ten times the largest particle size.NOTE Larger s

45、pecimens, preferably with a face area of at least 100 cm2, are advised as they will lead to greater accuracy.6.2.2 ThicknessWhere possible, the specimen thickness should be the full product thickness. When specimens are cut fromproducts they shall be representative of the material to be assessed and

46、 thick enough to enable handling withoutdamage. In the case of materials including macroscopic particles such as aggregates, the thickness should bepreferably at least ten times, but shall be no less than five times, the largest particle size.6.3 Number of test specimensAt least three specimens shal

47、l be tested.If the water contact area of the individual specimens is less than 100 cm2, at least six specimens shall be testedrepresenting a total area of at least 300 cm2.BS EN ISO 15148:2002+A1:2016ISO 15148:2002+A1:2016 (E)Hygrothermal performance of building materials and products Determination

48、of water absorption coefficient by partial immersionAMENDMENT 1Page 4, 7.1Replace the existing Table 1 with the following:Table 1 Allowed range of mean conditions and variability during testTemperature CRelative humidity %Allowed range of test conditions 23 5 50 5aAllowed variation during test 2 5aI

49、n case of dispute.Page 12, Annex ZAReplace the existing last paragraph with the following:Publication Year Title EN/HD YearISO 9346 2007 Thermal insulation Mass transfer Physical quantities and definitionsISO 9346 2007ISO 15148:2002/Amd.1:2016(E) ISO 2016 All rights reserved 1EN ISO 15148:2002 (E)76.4 Preparation of test specimensTest specimens shall be representative of the whole material and shall be cut so that they do not include productedges. In the case of materials known to be non-isotropic, sets of test specimens shall be prepared i