1、BRITISH STANDARD BS EN 661:1995 Resilient floor coverings Determination of the spreading of water The European Standard EN 661:1994 has the status of a British StandardBSEN 661:1995 This British Standard, having been prepared under the directionof the Building and CivilEngineering Sector Board (B/-)
2、, was published underthe authorityof the Standards Boardand comes intoeffect on 15 February 1995 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference PRI/60 Draft for comment 92/38635 DC ISBN 0 580 23245 X Cooperating organizations The European Committee
3、for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standard Finland Suomen Standardisoimisl
4、iito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Insp
5、ection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisa
6、tion United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN 661:1995 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 661 3 National annex NA (informative) Committees responsible I
7、nside back coverBSEN 661:1995 ii BSI 11-1999 National foreword This British Standard has been prepared by Technical Committee PRI/60, Resilient floor coverings, and is the English language version of EN 661:1994 Resilient floor coverings Determination of the spreading of water, published by the Euro
8、pean Committee for Standardization (CEN). A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.
9、 Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment
10、table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 661 November 1994 ICS 91.180 Descriptors: Floor coverings, tests, propagation, water English version Resilient floor coverings Determination of the spreading of water Revtements de sol rsilients Dtermination de la p
11、ropagation de leau Elastische Bodenbelge Bestimmung der Wasserausbreitung This European Standard was approved by CEN on 1994-11-10. 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 stan
12、dard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other l
13、anguage made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Irela
14、nd, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN member
15、s Ref. No. EN 661:1994 EEN661:1994 BSI 11-1999 2 Foreword This European Standard was prepared by the Technical Committee CEN/TC 134, Resilient and textile floor coverings, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publ
16、ication of an identical text or by endorsement, at the latest by May 1995, and conflicting national standards shall be withdrawn at the latest by May 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denm
17、ark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Principle 3 3 Apparatus and materials 3 4 Sampling and preparation of test pieces 3 5 Conditioning 3 6 Proced
18、ure 5 7 Expression of results 5 8 Test report 5 Figure 1 Apparatus 4EN661:1994 BSI 11-1999 3 1 Scope This European Standard specifies a method for determining the rate at which water spreads horizontally within a resilient floor covering having a non-absorbent backing. 2 Principle The rate at which
19、water spreads horizontally in a resilient floor covering having a non-absorbent backing is measured. 3 Apparatus and materials 3.1 Glass plates, of minimum dimensions 260 mm 260 mm and thickness 3 mm to 5 mm. 3.2 Metal collars, of nominal thickness 8 mm, nominal internal section 314 mm 2 , nominal i
20、nternal diameter 20 mm (see Figure 1). NOTEThe design of the collar is such that it will support the graduated tube, and will create a constant water level of mm above the floor covering. 3.3 A graduated tube, with a volume of 50 ml and internal diameter of 11 mm. 3.4 A stand, to hold the graduated
21、tube in a vertical position. 3.5 Metal plate, a minimum dimensions 250 mm 250 mm 2 mm. 3.6 A sealant, giving a water-tight joint for fitting the collar to the test piece. 3.7 The test liquid, i.e. distilled water containing 0,03 % pure sodium alkylsulfate and 0,06 % colouring agent. 3.8 One of the a
22、dhesives recommended for the installation of the resilient floor covering. 4 Sampling and preparation of test pieces Take a representative sample from the available material. Take three test pieces at equal distances across the sample, the distance between the outer edge of the sample and the neares
23、t edge of the test piece being at least 100 mm, of dimensions (250 5) mm (250 5) mm. Identify the layer of the sample which could allow water to be transmitted horizontally. Over an area of 100 mm 2at the centre of each test piece, make a number of shallow cuts in the surface above this layer, to re
24、ach it but not to penetrate it. Bond each test piece to a glass plate and place a 6 kg weight on top for 4 h, using a metal plate according to 3.5. Seal a metal collar around the prepared test area. 5 Conditioning After preparation, keep the test piece/glass plate bonding at ambient conditions for o
25、ne week and then keep the test piece in the testing atmosphere i.e. temperature of (23 2) C and relative humidity (50 5) % for a minimum of 48 h, but not more than 96 h, before the test. Maintain these conditions when carrying out the test. 5 +1 0 ()EN661:1994 4 BSI 11-1999 Figure 1 ApparatusEN661:1
26、994 BSI 11-1999 5 6 Procedure Place the test piece with the collar fitting over the open end of the tube which is filled with the test liquid. Turn the whole unit over in such a way that the test piece is horizontal, and read the initial level in the tube from the graduations. Record the time requir
27、ed for the coloured water to spread to one of the edges of the test piece. If the water does not reach one of the edges in the minimum period specified in the product standard, terminate the test after a further 2 h. If the water reaches an edge of a test piece before the specified period, make a se
28、ries of vertical radial cuts immediately on a section of the test piece to establish whether the water has spread, throughout the thickness of the material. If the spread of water has been principally at the bonding level, discount the result and repeat the test on a further piece. NOTE 1With some m
29、aterials the progress of the test may be followed by using an inclined mirror positioned below the test piece. NOTE 2With materials with an opaque backing the progress of the test may be followed by placing self-indicating silica gel around the test piece. 7 Expression of results Express the result
30、as the shortest of the times recorded for water to spread to one of the edges of the three test pieces. 8 Test report The test report shall contain the following information: a) reference to this standard i.e. EN 661; b) a complete identification of the product tested, including type, source and man
31、ufacturers reference numbers; c) the previous history of the sample; d) the shortest of the times recorded for water to spread to one of the edges of the three test pieces; e) any deviation from this standard which may have affected the results.6 blankBSEN 661:1995 BSI 11-1999 National annex NA (inf
32、ormative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted to Technical Committee PRI/60, Resilient floor coverings, upon which the following bodies were represented: British Adhesives and Sealants Association British Floor Covering M
33、anufacturers Association British Railways Board British Rubber Manufacturers Association Ltd. Consumer Policy Committee of BSI Contract Flooring Association Cork Industry Federation Department of the Environment (British Board of Agrment) Department of the Environment (Building Research Establishmen
34、t) Federation of Plastering and Drywall Contractors Institute of Chartered Arbitrators Royal Institute of British Architects Wood Panel Products Federation Coopted membersBS EN 661:1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body respo
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