1、DD 8455:2007Materials for gaskets and weatherstripping for windows, doors, conservatories and curtain walling Requirements and test methodsICS 91.060.50; 91.190NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWDRAFT FOR DEVELOPMENTThis publication is not to be regarded as a Briti
2、sh Standard.It is being issued in the Draft for Development series of publications and is of a provisional nature because some of the test methods require further development and review. It should be applied on this provisional basis, so that information and experience of its practical application c
3、an be obtained.A review of this Draft for Development will be carried out not later than 2 years after its publication.Notification of the start of the review period, with a request for the submission of comments from users of this Draft for Development, will be made in an announcement in the approp
4、riate issue of Update Standards.According to the replies received, the responsible BSI Committee will judge whether the Draft for Development can be converted into a British Standard or what other action should be taken.Observations which it is felt should receive attention before the official call
5、for comments will be welcomed.These should be sent to the Secretary of BSI Technical Committee B/538/4 at British Standards House, 389 Chiswick High Road, London W4 4AL.Licensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSIPublishing and copyright informationThe
6、BSI copyright notice displayed in this document indicates when the document was last issued. BSI 2007ISBN 978 0 580 49929 6The following BSI references relate to the work on this Draft for Development:Committee reference B/538/4Draft for comment 06/30122899 DCPublication historyFirst published 28 Fe
7、bruary 2007Amendments issued since publicationAmd. no. Date Text affectedDD 8455:2007Licensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2007 iDD 8455:2007ContentsForeword ii1 Scope 12 Normative references 13 Terms and definitions 14 Performance requiremen
8、ts 2AnnexesAnnex A (informative) Guidance on selection of appropriate grades of products from those given in BS EN 12365-1:2003 6Annex B (informative) Guidance on testing for wear resistance, resistance to chemicals and induction of environmental stress cracking 7Annex C (normative) Test method for
9、migration 7Annex D (normative) Test method for staining 9Annex E (normative) Reversion test 10Annex F (normative) Tear resistance test 12Annex G (normative) Water absorption test for self adhesive cellular glazing tapes 14Annex H (informative) Guidance on assessment of chemical resistance 15Annex I
10、(informative) Guidance on assessment of induction of environmental stress cracking 16Bibliography 17List of figuresFigure F.1 Example of arrangement for tear resistance test 13List of tablesTable 1 Performance requirements 5Table H.1 Assessment of the effect of a chemical on a sample 16Summary of pa
11、gesThis document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 17 and a back cover.Licensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSIDD 8455:2007ii BSI 2007ForewordPublishing informationThis Draft for Development was published by
12、BSI and came into effect on 28 February, 2007. It was prepared by Subcommittee B/538/4, Building hardware, under the authority of Technical Committee B/538, Doors, windows, shutters, hardware and curtain walling. A list of organizations represented on this committee can be obtained on request to its
13、 secretary.Relationship with other publicationsThis Draft for Development is intended to supplement BS EN 12365-1:2003. It specifies performance requirements for the materials for gaskets and weatherstrips classified in BS EN 12365-1:2003 to assist the manufacturer in meeting the general requirement
14、s specified in BS EN 12365-1:2003, 5.3 and 5.4.Use of this documentIt has been assumed in the preparation of this Draft for Development that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced.As a Draft for Developm
15、ent, this document is of a provisional nature. It should not be quoted as if it were a British Standard and particular care should be taken to ensure that claims of compliance are not misleading.Presentational conventionsThe provisions in this Draft for Development are presented in roman (i.e. uprig
16、ht) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”.Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.Contractual and legal considerationsThis publication does n
17、ot purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a Draft for Development cannot confer immunity from legal obligations.Licensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 20
18、07 1DD 8455:20071 ScopeThis Draft for Development specifies performance requirements for materials used in gaskets, co-extruded glazing gaskets, weatherstripping and cellular adhesive glazing tapes for use in windows, doors, conservatories and curtain walling, made from any material, primarily for d
19、omestic and residential use. It is not applicable to butyl glazing tapes and other mastic materials, or to any materials for use in shutters. NOTE 1 Guidance on selection of appropriate grades of products from those listed in BS EN 12365-1:2003 is given in Annex A.NOTE 2 Guidance on testing for wear
20、 resistance, resistance to chemicals and induction of environmental stress cracking is given in Annex B.2 Normative referencesThe following normative documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the la
21、test edition of the referenced document (including any amendments) applies.BS 6100, Glossary of building and civil engineering termsBS 7116:1990, Specification for double sided pressure sensitive adhesive tapesBS EN 12365-1:2003, Building hardware Gasket and weatherstripping for doors, windows, shut
22、ters and curtain walling Part 1: Performance requirements and classificationBS EN 12608:2003, Unplasticized polyvinyl chloride (PVC-U) profiles for the fabrication of windows and doors Classification, requirements and test methodsBS ISO 1431-1:2004, Rubber, vulcanized or thermoplastic Resistance to
23、ozone cracking Part 1: Static and dynamic strain testing3 Terms and definitionsFor the purposes of this Draft for Development the terms and definitions given in BS EN 12365-1:2003 and in BS 6100 apply together with the following.3.1 cellular adhesive glazing tapeflexible cellular strip, self adhesiv
24、e on one or both surfaces3.2 co-extruded materialextruded material formed from two or more separate elements fused together in the extrusion process3.3 co-extruded flexible/rigid materialco-extruded material in which at least one element is rigid and at least one element is flexible3.4 multiple hard
25、ness materialco-extruded material in which all elements are flexible but of more than one hardnessLicensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSIDD 8455:20072 BSI 20073.5 pile materialmaterial consisting essentially of filaments secured to a rigid or flexi
26、ble backingNOTE This material is primarily used for weatherstripping.3.6 sheathed cellular materialmaterial comprising a core, which includes a cellular material, contained within a flexible sheath3.7 glazing gasket pre-formed resilient material used to form the fixed joint between the glazing (or o
27、ther infilling) and the frame members in which it is retained3.8 weatherstrippingpre-formed resilient material used to form the dynamic joint between the opening and the fixed elements of a door or windowNOTE Also known as “weatherstrip” and “weatherseal”.3.9 fixed jointjoint that can be dismantled
28、and re-assembled if necessary during maintenance of the door or window3.10 dynamic jointjoint that is formed between the opening and fixed elements of a door or window when the opening element is in its closed position3.11 partial fusionco-extrusion process in which the elements are designed to be s
29、eparated by tension, applied manually4 Performance requirements4.1 GeneralThe materials shall conform to the performance requirements specified in 4.2 to 4.8 as specified in Table 1.All testing for conformity to the requirements specified in 4.2 to 4.8 shall be carried out on test specimens taken fr
30、om new, unused material or product.4.2 Ultraviolet resistance and colour fastness to artificial weatheringWhen the material is tested in accordance with BS EN 12608:2003, 5.8.3, there shall be no cracking or crazing, or separation of any component parts, when viewed with normal or corrected vision w
31、ithout magnification. Unless otherwise agreed between the manufacturer and the purchaser, any colour change in the material shall be not greater than %E* = 5.Licensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2007 3DD 8455:20074.3 Resistance to migration
32、and staining DRAFTING NOTE. There is concern that the test methods given in Annex C and Annex D might not work for adhesive tapes. When the test sandwiches are made up and heated in the oven, adhesive tapes might stick to the frame pieces so that it might not be possible to dismantle the sandwiches
33、to do the necessary inspection and weighings at the end of the test. Advice from manufacturers of adhesive tapes is specifically requested on this point.4.3.1 Resistance to migrationWhen the material is tested in accordance with Annex C, the migration value, C, shall be not more than 5 mg.4.3.2 Resi
34、stance to staining When the material is tested in accordance with Annex D, there shall be no contact or migration staining.4.4 Reversion4.4.1 Co-extruded flexible/rigid materials in which the rigid element is unplasticized polyvinyl chloride (PVC-U)The materials shall conform to BS EN 12608:2003, 5.
35、5.4.4.2 Other materials (including other co-extruded flexible/rigid materials)When the materials are tested in accordance with Annex E, there shall be not more than 2% shrinkage in length.4.5 Tear resistance and adhesion strength4.5.1 Tear resistance of co-extruded materials except for those produce
36、d by partial fusionCOMMENTARY ON 4.5.1Owing to the nature of the manufacturing process of partial fusion it is not possible to specify requirements for tear resistance for materials produced by this process.When all component interfaces in the material are tested in accordance with Annex F, the tear
37、 on all test specimens shall not propagate along the interface between the components for a distance of more than 5 mm at any one point.4.5.2 Adhesion strength of cellular adhesive tapesCOMMENTARY ON 4.5.2 The adhesion strength test for cellular adhesive tapes is not designed to assess enhanced secu
38、rity. Windows with enhanced security performance are specified in BS 7950 and doors with enhanced security performance are specified in PAS 24-1.When the tapes are tested in accordance with BS 7116:1990, Appendix H, at 23 C, the dynamic tensile adhesion strength shall be not less than 26 N/cm2of tes
39、t specimen.Licensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSIDD 8455:20074 BSI 20074.6 Ozone resistanceAfter static strain testing in accordance with BS ISO 1431-1:2004, Clause 9, procedure A, under the following conditions, the test pieces shall show no crac
40、king or crazing when examined with normal or corrected vision without magnification. Ozone concentration (50 5) p.p.h.m.; Temperature (40 2) C; Pre-tension time (7202) h; Exposure time (9602) h; Elongation 36 to 75 IRHD (20 2)%;76 to 85 IRHD (15 2)%;86 to 95 IRHD (10 1)%; Relative humidity (55 10)%.
41、4.7 Water absorption of self adhesive cellular glazing tapes (open cell materials only)When tested in accordance with Annex G, the increase in mass per unit volume shall be not greater than 3% in any of the test specimens.4.8 Resistance to dynamic shearWhen the material is tested in accordance with
42、BS 7116:1990, Appendix L, at 23 C, the dynamic shear strength shall be not less than 14 N.Licensed Copy: Wang Bin, na, Thu Apr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BSI 2007 5DD 8455:2007Table 1 Performance requirementsMaterial characteristicClause Material typeExtruded or mouldedPi
43、le Sheathed cellularCo-extruded multiple hardnessCo-extruded flexible/rigidCellular adhesive tapeInternal useExternal useUV resistance and colour fastness4.2 + + +Resistance to migration4.3.1 + + + + + tba tbaResistance to staining 4.3.2 + + + + + tba tbaReversion 4.4 + + +Tear resistance 4.5.1 Adhe
44、sion strength4.5.2 +Ozone resistance4.6 + + +Water absorption4.7 +Resistance to dynamic shear4.8 + Required Not requiredtba To be agreed when the DD is reviewed. See drafting note in 4.3 regarding the application of the tests for these parameters to adhesive tapes. Licensed Copy: Wang Bin, na, Thu A
45、pr 12 07:17:56 GMT+00:00 2007, Uncontrolled Copy, (c) BSIDD 8455:20076 BSI 2007Annex A (informative) Guidance on selection of appropriate grades of products from those given in BS EN 12365-1:2003A.1 GeneralThis annex is intended to give guidance to the system designer and/or fabricator on the select
46、ion of appropriate grades of products from those given in BS EN 12365-1:2003. Selection of inappropriate grades of products can lead to poor product performance and/or costly over-specification.A.2 Category of use (BS EN 12365-1:2003, 4.2)Some products are designed either for gasket applications or
47、for weatherstripping. However, some products are designed to fulfil both functions.A.3 Working range (BS EN 12365-1:2003, 4.3)The working range grade needed depends on the design of the system in which the product is to be used. Factors to be considered when selecting the working range grade include
48、 those that will vary the amount by which the gasket or weatherstrip is deflected e.g. manufacturing tolerances, hardware adjustment and wear, seasonal variations and thermal movement.A.4 Linear compression force (BS EN 12365-1:2003, 4.4)The linear compression force grade should be selected on the b
49、asis of the closing and operating forces that can be expected in the system.A.5 Working temperature range (BS EN 12365-1:2003, 4.5)For normal climatic conditions in the UK, grade 2 is considered appropriate; however, certain micro-climatic conditions can exist, for instance in un-ventilated conservatories in direct sunlight, which might necessitate us
