1、June 2013 Translation by DIN-Sprachendienst.English price group 11No 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).ICS 9
2、1.100.60!%1“2021492www.din.deDDIN EN 12086Thermal insulating products for building applications Determination of water vapour transmission properties;English version EN 12086:2013,English translation of DIN EN 12086:2013-06Wrmedmmstoffe fr das Bauwesen Bestimmung der Wasserdampfdurchlssigkeit;Englis
3、che Fassung EN 12086:2013,Englische bersetzung von DIN EN 12086:2013-06Produits isolants thermiques destins aux applications du btiment Dtermination des proprits de transmission de la vapeur deau;Version anglaise EN 12086:2013,Traduction anglaise de DIN EN 12086:2013-06SupersedesDIN EN 12086:1997-08
4、www.beuth.deDocument comprises 19 pagesIn case of doubt, the German-language original shall be considered authoritative.05.13DIN EN 12086:2013-06 2 A comma is used as the decimal marker. National foreword This document (EN 12086:2013) has been prepared by Technical Committee CEN/TC 88 Thermal insula
5、ting materials and products“ (Secretariat: DIN, Germany) The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-56-60 AA Wrmedmmstoffe. Amendments This standard differs from DIN EN 12086:
6、1997-08 as follows: a) the standard has been editorially revised. Previous editions DIN 53429: 1971-02 DIN 52615-1: 1973-06 DIN 18174: 1981-01 DIN 52615: 1987-11 DIN EN 12086: 1997-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12086 March 2013 ICS 91.100.60 Supersedes EN 12086:1997English
7、Version Thermal insulating products for building applications - Determination of water vapour transmission properties Produits isolants thermiques destins aux applications du btiment - Dtermination des proprits de transmission de la vapeur deau Wrmedmmstoffe fr das Bauwesen - Bestimmung der Wasserda
8、mpfdurchlssigkeit 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 the status of a national standard without any alteration. Up-to-date lists and
9、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, German). A version in any other language made by translation under the re
10、sponsibility 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav
11、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 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE N
12、ORMALISATION 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 12086:2013: EEN 12086:2013 (E) 2 Contents Page Foreword . 3 1 Scope 5 2 Normative
13、 references . 5 3 Terms and definitions 5 4 Principle 6 5 Apparatus . 6 6 Test specimens 7 7 Procedure . 8 8 Calculation and expression of results 9 9 Accuracy of measurement . 12 10 Test report 12 Annex A (informative) Conversion table for water vapour transmission units 14 Annex B (informative) Ex
14、amples of test assemblies . 15 Annex C (informative) Information about correction procedures . 16 Bibliography 17 DIN EN 12086:2013-06 EN 12086:2013 (E) 3 Foreword This document (EN 12086:2013) has been prepared by Technical Committee CEN/TC 88 “Thermal insulating materials and products”, the secret
15、ariat 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 September 2013, and conflicting national standards shall be withdrawn at the latest by September 2013. Attention is d
16、rawn 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 EN 12086:1997. The revision of this standard contains no major changes, onl
17、y minor corrections and clarifications of an editorial nature. 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 for thermal insulating ma
18、terials 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 requirements. This Europea
19、n Standard has been drafted for applications in buildings but it may also be used in other areas where it is relevant. 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 pr
20、oducts, 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 applications Determination of thickness EN 824, Thermal insulating products for building applicati
21、ons Determination of squareness EN 825, Thermal insulating products for building applications Determination of flatness EN 826, Thermal insulating products for building applications Determination of compression behaviour EN 1602, Thermal insulating products for building applications Determination of
22、 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 1604, Thermal insulating products for building applications Determination of dimensional stability
23、under specified temperature and humidity conditions EN 1605, Thermal insulating products for building applications Determination of deformation under specified compressive load and temperature conditions EN 1606, Thermal insulating products for building applications Determination of compressive cree
24、p DIN EN 12086:2013-06 EN 12086:2013 (E) 4 EN 1607, Thermal insulating products for building applications Determination of tensile strength perpendicular to faces EN 1608, Thermal insulating products for building applications Determination of tensile strength parallel to faces EN 1609, Thermal insul
25、ating 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 test specimens EN 12086, Thermal insulating products for building applications Determinatio
26、n 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 building applications Determination of long-term water absorption by diffusion EN 12089, Therma
27、l 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 products for building applications Determination of freeze-thaw resistance EN 12429, Therma
28、l insulating products for building applications Conditioning to moisture equilibrium under specified temperature and humidity conditions EN 12430, Thermal insulating products for building applications Determination of behaviour under point load EN 12431, Thermal insulating products for building appl
29、ications 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 insulating materials for building applications Determination of organic content According to th
30、e 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, France, Germany, Greece, H
31、ungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12086:2013-06 EN 12086:2013 (E) 5 1 Scope This European Standard specifies the equipment and pr
32、ocedures for determining the water vapour transmission rate, water vapour permeance and water vapour permeability of test specimens in the steady state under different sets of specified test conditions. It is applicable to thermal insulating products. It is intended to be used for homogeneous materi
33、als and for products which may contain integral skins or facings of different material(s). A material is considered to be homogeneous, with regard to mass distribution, if its density is approximately the same throughout, i.e. if the measured density values are close to its mean density. This test m
34、ethod is not normally used for determining the water vapour transmission properties of single, separate vapour barriers (of high diffusion resistance), such as prefabricated films, foils, membranes or sheets, due to the long duration of the test. For products with a vapour retarder or barrier with a
35、 water vapour diffusion equivalent air layer thickness sd 1 000 m (see 3.6) other test methods e.g. IR-detection can be used for measuring the single separate vapour retarder or barrier, provided that the results obtained are in the same range as the values measured in accordance with this standard.
36、 The water vapour transmission rate and permeance values are specific to the test specimen (i.e. the product) thickness tested. For homogeneous products, the water vapour permeability is a property of the material. 2 Normative references The following documents, in whole or in part, are normatively
37、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 12085, Thermal insulating products for building applications Deter
38、mination of linear dimensions of test specimens 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 water vapour transmission rate g quantity of water vapour transmitted through unit area in unit time under specified conditions of temperature, hu
39、midity and thickness 3.2 water vapour permeance W quotient of the water vapour transmission rate of the test specimen and the water vapour pressure difference between the two specimen faces during the test 3.3 water vapour resistance Z inverse of water vapour permeance 3.4 water vapour permeability
40、product of the permeance and the thickness of the test specimen DIN EN 12086:2013-06 EN 12086:2013 (E) 6 Note 1 to entry: The water vapour permeability of a homogeneous product is a property of the material. It is the quantity of water vapour transmitted per unit of time through a unit area of the p
41、roduct per unit of vapour pressure difference between its faces for a unit thickness. 3.5 water vapour diffusion resistance factor quotient of the water vapour permeability of air and the water vapour permeability of the material or the homogeneous product concerned; it indicates the relative magnit
42、ude of the water vapour resistance of the product and that of an equally thick layer of stationary air at the same temperature 3.6 water vapour diffusion equivalent air layer thickness sdthickness of a motionless air layer which has the same water vapour resistance as the test specimen with the thic
43、kness d Note 1 to entry: A conversion table and units for the above definitions are given in Annex A. 4 Principle The test specimen is sealed to the open side of a test dish containing a desiccant or an aqueous saturated salt solution. The assembly is then placed in a test atmosphere whose temperatu
44、re and humidity are controlled. Because of the difference between the partial water vapour pressures in the test assembly and in the test atmosphere water vapour flows through the test specimen. Periodic weighings of the assembly are conducted to determine the rate of water vapour transmission when
45、the steady state is reached. 5 Apparatus 5.1 Test dishes, preferably of circular shape and which are (corrosion) resistant to any desiccant or to the salt solution which they may be required to contain and impermeable to water or water vapour. These dishes are typically made of glass or metal. The s
46、ize of the dishes depends on the size of the test specimen to be tested. The difference in size between the upper exposed area (A1) and the lower exposed area (A2) of the test specimen shall be less than 3 % (see examples in Annex B). Some types of test dish are unsuitable for use with certain mater
47、ials. This should be stated in the relevant product standard or any other European Technical Specification. 5.2 Measuring instruments, capable of determining linear dimensions in accordance with EN 12085. 5.3 Template (with edge tapered to facilitate removal after use) with a shape and size correspo
48、nding to that of the test dish to duplicate the exposed area of the specimen. The template shall have an area that is at least 90 % of the test specimens surface in order to limit the edge effect due to non-linear vapour flow (see Annex C). 5.4 Analytical balance, capable of weighing the test assemb
49、ly to an accuracy of 1 mg or better. If larger test assemblies are used, the weighing accuracy may be determined with respect to the total weight and the required accuracy of the test results. 5.5 Chamber, capable of being maintained within 3 % of the required relative humidity and within 1 C of the required temperature. In order to maintain the required conditions throughout the chamber it may be necessary to use air circulation with an
