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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DRAFT FOR DEVELOPMENT DD ENV 13420:2000 IC
2、S 91.060.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Windows Behaviour between different climates Test method Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard,
3、 having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 BSI 07-2000 ISBN 0 580 36102 0 DD ENV 13420:2000 Amendments issued since publication Amd. No.DateCo
4、mments National foreword This Draft for Development is the official English language version of ENV 13420:2000. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because the level of inn
5、ovation on the subject is currently high. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the European o
6、rganization responsible for its conversion into a European Standard. A review of this publication will be initiated 2 years after its publication by the European organization so that a decision can be taken on its status at the end of its three year life. The commencement of the review period will b
7、e notified by an announcement in Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European Standard, to extend the life of the prestandard or to withdraw it. Comments should be sent
8、 in writing to the Secretary of BSI Technical Committee B/538, Doors, windows, shutters, hardware and curtain walling at 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible an appropriate revision of the text. A list of organizations r
9、epresented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspo
10、ndence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Summary of pages This document comprises a front cover, an inside front cover, the ENV title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicate
11、s when the document was last issued. Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN PRESTANDARD PRNORME EUROPENNE EUROPISCHE VORNORM ENV 13420 April 2000 ICS 91.060.50 English version Windows - Behavi
12、our between different climates - Test method Fentres - Comportement entre diffrents climats - Mthode dessai Fenster - Differenzklima - Prfverfahren This European Prestandard (ENV) was approved by CEN on 7 June 1999 as a prospective standard for provisional application. The period of validity of this
13、 ENV is limited initially to three years. After two years the members of CEN will be requested to submit their comments, particularly on the question whether the ENV can be converted into a European Standard. CEN members are required to announce the existence of this ENV in the same way as for an EN
14、 and to make the ENV available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the ENV) until the final decision about the possible conversion of the ENV into an EN is reached. CEN members are the national standards
15、 bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORM
16、UNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. ENV 13420:2000 E Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:46 GMT+00:00
17、 2006, Uncontrolled Copy, (c) BSI Page 2 ENV 13420:2000 Content Page Foreword3 Introduction3 1Scope3 2Normative references.4 3Definitions.4 3.1Designs with low resistance to water vapour diffusion.4 3.2Designs with high resistance to water vapour diffusion.4 3.3Designs being sensitive to deformation
18、4 3.4Windows manufactured of different materials.4 3.5Orientation5 3.6Wet spot.5 4Principle of test.5 5Test facility5 6Dimensions of the test specimens.5 7Preparation for test.5 8Test conditions6 9Test methods6 10Test sequence7 11Test report.8 Annex A (informative) Design principles9 Annex B (inform
19、ative) Survey of general design criteria where tests are not necessary.10 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 ENV 13420:2000 Foreword This European Prestandard has been prepared by Technical
20、Committee CEN/TC 33 “Doors, windows, shutters, building hardware and curtain walling“, the secretariat of which is held by AFNOR. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this European Prestandard: Austri
21、a, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. The status as an European Prestandard was proposed because some experience in testing the different climates s
22、till has to be collected. The ENV phase should enable the countries to do this. This Prestandard is one of a series of European standards for windows. Introduction Through climatic loading of the windows it is possible in the case of unfavourable designs that the frames of windows manufactured of di
23、fferent materials may decay through accumulation of moisture and may thus be damaged; this moisture may come from water vapour diffusion and condensation; be unable to fulfill their basic functions (serviceability, air permeability) because of unacceptable deformations. This Prestandard defines the
24、test procedures which are to be used in dependence of the potential risk of the design. 1 Scope This European Prestandard specifies the test methods for evaluating the risks of decay of windows manufactured of different materials through increased moisture accumulation as a result of condensation or
25、 water vapour diffusion; the influence of deformation on basic performances of windows manufactured of different materials exposed to different climates between their external and internal faces. Three test methods are to be differentiated. They take into account different cases of loadings. Test me
26、thod 1: For designs with low resistance to water vapour diffusion (normally designs with water vapour equalization holes); the test procedure is to be used for cross-sections where the danger is given by the moisture accumulation as a result of the condensation of moisture between the planking and t
27、he timber (see informative Annex A, Figure A.1). Test method 2: For designs with high resistance to water vapour diffusion (normally designs without water vapour equalization holes); the test procedure is to be used for cross-sections where the danger is given by the moisture accumulation as a resul
28、t of water vapour diffusion of the moisture at the internal and external face (see informative Annex A, Figure A.2 + A.3). Test method 3: For designs being sensitive to deformation; the test procedure is to be used for cross-sections where they are sensitive to the function through deformation as a
29、result of climatic loading. This Prestandard is relevant to initial type testing, i. e. to developments or changes in designs. It is not relevant to routine quality control or to proven designs. NOTE: Designs are included in Annex A, Annex B is the survey of general design criteria where tests are n
30、ot Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 ENV 13420:2000 necessary. 2 Normative references This European Prestandard incorporates by dated or undated reference, provisions from other publication
31、s. These normative 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 apply to this European Prestandard only when incorporated in it by amendment or revision.
32、For undated references the latest edition of the publication referred to applies. prEN 1026 Windows and doors Air permeability Test method prEN 1121 Doors - Behaviour between two different climates Test method prEN 12046-1 Operating forces Test method Part 1: windows prEN 12519 Doors and windows Ter
33、minology 3 Definitions For the purposes of this Prestandard the definitions given in prEN 12519 Doors and windows - Terminology shall apply, together with those given hereafter: 3.1 Designs with low resistance to water vapour diffusion A design is regarded as being a design with low water vapour dif
34、fusion when moisture conditioned by water vapour diffusion can be drained in the cross-section in a controlled way under specified service conditions, e. g. through sufficient ventilation. 3.2 Designs with high resistance to water vapour diffusion A design is regarded as being a design with high res
35、istance to water vapour diffusion when as a result of profile coverings a sufficient draining of the moisture conditioned by water vapour diffusion is impaired in the cross-section. 3.3 Designs being sensitive to deformation A design is regarded as being sensitive to deformation when under specified
36、 service conditions relative expansion (thermal or hygrometrical) of the material within the cross-section of the profile may impair the basic functions of the window (e. g. operating forces, air permeability). 3.4 Windows manufactured of different materials The window manufactured of different mate
37、rials is a window whose frame members, operating hardware being excluded, is made of a minimum of two materials. NOTE: Typical examples basic timber windows clad with aluminium or PVC profiles; basic aluminium windows clad with timber (solid profiles or veneers); basic plastic windows clad with alum
38、inium profiles. Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 ENV 13420:2000 3.5 Orientation Side 1: Inward looking face Side 2: Outward looking face 3.6 Wet spot After climatic exposure, a visible moi
39、sture accummulation at the interface between timber (or any other hygroscopic materials) and another material. 4 Principle of test In order to create a gradient of water vapour diffusion and condensation hazards as well as a temperature gradient and deformation hazards, the test specimen is exposed
40、on both sides, for a specified time, to a set of different climates capable of creating a temperature below dew point in composite profiles. In the case of test procedures 1 and 2 the moisture content is to be determined periodically with an electric hygrometer or oven-dry samples on hygroscopic fra
41、me materials. Wet spots are to be recorded at the end of the exposure, by dismantling the test samples, if possible. In the case of test method 3 the operating forces and the air permeability are to be determined at a maximum deformation and at the end of the loading. 5 Test facility The test facili
42、ty is defined in prEN 1121; in addition the following test facilities are required: a measuring device for determining the moisture content; an electric hygrometer properly calibrated for determining the moisture content of the timber. The hygrometer has to have an accuracy of 1 %. a measuring devic
43、e for determining the deformation with an accuracy of 0,1 mm. 6 Dimensions of the test specimens For test methods 1 and 2 the test results are independent of the dimensions; for that reason, the dimension can be agreed upon between the test laboratory and the applicant. In the case of designs sensit
44、ive to deformation (test method 3) the largest overall dimension foreseen by the manufacturer is to be tested to ensure the validity of the test. 7 Preparation for test The test specimen shall be mounted taking into account the installation instructions as defined and published by the manufacturer.
45、The test specimen shall be fixed in the test rig plumb without any twists or bends which may influence the test results. The specimen shall be fully operable and shall be opened and closed five times before the test. During the test the windows shall be secured in a closed and locked position. Licen
46、sed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:46 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 ENV 13420:2000 8 Test conditions The test conditions according to prEN 1121 are to be maintained. The test conditions subsequently listed shall be used in conne
47、ction with the test methods in clause 9. Table 1: Test methods for designs with low and high resistance to water vapour diffusion TestTest Side 1Side 2 methodclimateAir temp.1 ? ?C Rel. humi- dity (U) ? % Air temp.2 ?C Rel. humi- dity (U) ? % Cycle/ durability 1A2350-10-see Figure 1 B235060-(12 h) 2
48、.1C2370380 % ? 30 days ? 60 days * 2.2A2350-10- ? 30 days ? 60 days * * until the constant moisture content of the hygroscopic materials or visible condensation is reached in the profile. Table 2: Test methods for designs sensitive to deformation Test method Test climate Side 1Side 2 Air temp.1 ?C R
49、el. humi- dity (U) ? % Air temp.2 ?C Rel. humi- dity (U)? % Cyclus / durability 3A2350-10-24 h D2350751)-24 h 1) The reference temperature for heating up the surface by radiation. 9 Test methods Test method 1 For the test the specimen shall be exposed within a changing test climate A and B (see table 1) according to Figure 1 with 100 cycles or until a constant weight or moisture of the hygroscopic materials of a climatic exposure has been reached. The moisture of the wood shall be continunously examined and recorded. Licensed Copy: L