1、Resilient floor coverings - Determination of the spreading of water The European Standard EN 661 : 1994 has the status of a British Standard BS EN 661 : 1995 Cooperating organizations direction of the Building and Civil Engineering Sector Board (B/-), was published under the authority of the Standar
2、ds Board and comes into effect on 16 February 1996 O BSI 1995 The foliowing BSI references relate to the work on this standard: Committee reference PRIIBO Draft for comment 92/38635 DC ISBN O 680 23246 X Amd. No. The European Committee for Standardization (CEN), under whose supervision this European
3、 Standard was prepared, comprises the national standards organizations of the following countries: Date lxt affected Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsin
4、stitut Institut belge de normalisation Dansk Standard Suomen Standardisoimisluto, r.y. Association francaise de normalisation Deutsches Institut fr Normung e.V. Hellenic Organization for Standardization Technological Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italian
5、o di Unificazione Inspection du Travail et des Mines Nederlands Normalisatie-instituut Norges Standardiseringsforbund Instituto Portugus da Qualidade Asociacin Espaola de Normalizacin y Certificacin Standardiseringskommissionen i Sverige Association suisse de normalisation British Standards Institut
6、ion -p _I CEN ENsbb1-94 W 3i.104589 0083Lb1 338 Wp BS EN 661 : 1995 Contents Page Cooperating organizations Inside front cover National foreword i Foreword 2 Ixt of EN 661 3 National annex NA (infoimative) Committees responsible Inside back cover National foreword This British Standarcl has been pre
7、pared by Rchnical Committee PRI/60, Resilient floor coverings, and is the English language version of El; 661 : 1994 Resilient floor coverings - Determination of the speucLPng of wuter; published by the European Committee for Standardization (CEX). Compliance with a British Standard does not of itse
8、lf confer immunity from legal obligations. i CEN ENMhhL 94 m 3404589 O083362 274 = EUROPEAN STANDARD EN 661 NORME EUROPENNE EUROPISCHE NORM November 1994 ICs 91.180 Descriptors: Floor coverings, tests, propagation, water English version Resilient floor coverings - Determination of the spreading of w
9、ater Revtements de sol rsilients - Dtermination de la propagation 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 CENICENELEC Internal Regulations which stipulate the conditions for gi
10、ving this European Standard the status of a national standard 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 ver
11、sions (English, French, German). A version in any other language 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,
12、 Denmark, Finland, France, Germany, Greece, Iceland, Ireland, 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
13、 36, B-1050 Brussels O 1994 Copyright reserved to CEN members Ref. No. EN 661 : 1994 E CEN ENx661 94 = 3404589 0083363 LOO Page 2 EN 661 : 1994 Foreword This European Standard was prepared by the Technical Committee CEN/TC 134, Resilient and textile floor coverings, the secretariat of which is held
14、by BSI. 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 May 1995, and conflicting national standards shall be withdrawn at the latest by May 1995. According to the CENKENELEC Internal Regulations,
15、 the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. 1 Scope This European Standard specifies a method fo
16、r cleteiinining the rate at which water spreads horizontally within a resilient floor covering having a non-absorbent backing. 2 Principle The rate at which water spreads horizontally in a resilient floor covering lia7ing a non-absorbent backing is measured. 3 Apparatus and materials 3.1 GZms plates
17、, of minimum dimensions 260 mm x 260 min and thickness 3 min to 5 min. 3.2 Meta2 c02lms, of nominal thickness 8 min, nominal internal section 314 mm2, noininal internal diameter 20 mm (see figure 1). NJE. “lie design of the collar is such that it wiil support the gradwated tube, and wiil create a co
18、nstant matei level of f5 A$ iwti above the floor covering. 3.3 A grcicluatecl tube, with a volume of 50 in1 and internal diameter of 11 min. 3.4 A stcind, to hold the graduated tube in a vertical position. 3.5 Metcil plate, a minimum dimensions 250 mm x 250 min x 2 mni. 3.6 A sedrcnt, giving a water
19、-tight joint for fitting the collar to the test piece. 3.7 The test liquid, i.e. distilled water containing 0,03 96 pure sodium alkylsulfate and 0,06 % colouring agent. 3.8 One of the cidhesives mmnmerzcled for the installation of the resilient floor covering. Page 3 EN 661 : 1994 4 Sampling and pre
20、paration of test pieces Tdke a representative sample from the available material. Tmke three test pieces at equal distances across the sample, the distance between the outer edge of the sample and the nearest edge of the test piece being at least 100 tnm, of dimensions (250 f 5) min x (250 f 5) min.
21、 Identify the layer of the sample which could allow water to be transmittecl horizontally. Over an area of 100 min2 at the centre of each test piece, make a number of shallow cuts in the surface above this layer, to reach it but not to penetrate it. Bond each test piece to a glass plate and place a
22、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 one week and then keep the test piece in the testing atmosphere i.e. temperature of
23、 (23 f 2) OC and relative humidity (50 f 5) !% for a minimum of 48 h, but not more than 96 h, before the test. Maintain these conditions when carrying out the test. - - CEN ENMbbL 94 m 3404589 0083365 T83 m Page 4 EN 661 : 1994 IWJ Section B - B Section A - A Figure 1. Apparatus Page 5 EN 661 : 1994
24、 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 required for the coloii
25、red 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 series of vertical
26、 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. NE 1. With some materials the prog
27、ress of the test may be followed by using an inclined niirror positioned below the test piece. NXE 2. With materiais 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 as the shortest
28、 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 Le. EN 661; b) a complete identification of the product tested, including type, source and manufacturers refer
29、ence numbeis; 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. CEN ENS661 94 3404589 0083Lb7 85b W BS EN 661 : 1995 National annex NA
30、 (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted to Technical Committee PRI/GO, Resilient floor coverings, upon which the following bodies were represented: British Adhesives and Sealants Association British Floor Cover
31、ing Manufacturers 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 Establi
32、shment) Federation of Plastering and Drywall Contractors Institute of Chartered Arbitrators Royal Institute of British Architects Wood Panel Products Federation Coopted members CEN EN*bbl 94 3404589 0083Lb8 792 BS EN 661 : 1995 BSI 389 Chiswick High Road London W4 4AL 9502- 5- 0.5k- JWD BSI - Britis
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