1、BRITISH STANDARD BS EN 662:1995 Resilient floor coverings Determination of curling on exposure to moisture The European Standard EN 662:1994 has the status of a British StandardBSEN662:1995 This British Standard, having been prepared under the directionof the Building and CivilEngineering Sector Boa
2、rd (B/-), was published underthe authority of the Standards Board and comes intoeffect on 15February 1995 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference PRI/60 Draft for comment 92/38636 DC ISBN 0 580 23246 8 Cooperating organizations The European C
3、ommittee 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 Standar
4、disoimisliito, 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 Luxemb
5、ourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de nor
6、malisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN662:1995 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 662 3 National annex NA (informative) Committees responsi
7、ble Inside back cover BSEN662:1995 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 662:1994 Resilient floor coverings Determination of curling on exposure to moisture, publish
8、ed by the European 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 lega
9、l obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages2 to 4, 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
10、the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 662 November 1994 ICS 91.180 Descriptors: Floor coverings, tests, deformation, humidity English version Resilient floor coverings Determination of curling on exposure to moisture Revtements de sol rsil
11、ients Dtermination de lincurvation lhumidit Elastische Bodenbelge Bestimmung der Schsselung bei Feuchteeinwirkung 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 Europea
12、n 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 versions (English, F
13、rench, 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, Denmark, Finland
14、, 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 36, B-1050 Bruss
15、els 1994 Copyright reserved to CEN members Ref. No. EN 662:1994 EEN662:1994 2 BSI 11-1999 Foreword This European Standard was prepared by 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 o
16、f 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 CEN/CENELEC Internal Regulations, the following countries are bound to implement this Euro
17、pean Standard: Austria, Belgium, Denmark, 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 Definition 3 3 Principle 3 4 Apparatus and materials 3 5 Sampling and pr
18、eparation of test pieces 3 6 Conditioning 3 7 Procedure 3 8 Calculation and expression of results 3 9 Test report 3EN662:1994 BSI 11-1999 3 1 Scope This European Standard specifies a method for determining the vertical deformation of a resilient floor covering when in contact with a wet surface. 2 D
19、efinition For the purposes of this standard the following definition applies. curl the vertical deformation of a resilient floor covering on exposure to moisture 3 Principle A test piece is laid on a moistened cellulose paper. At the beginning and at the end of the test the vertical distance between
20、 the upper side of a support plate and the underside of a test piece is measured at the four corners. 4 Apparatus and materials 4.1 Non-absorbent support plates e.g. glass, metal, flat and rigid, of minimum dimensions 150 mm 150 mm, thickness U 6 mm, with polished, unbevelled edges. 4.2 Containers o
21、f a size such that the support plate may be immersed to within 3 mm to 5 mm of its upper face. 4.3 A swivelling platform to carry the containers positioned in front of a travelling microscope. 4.4 A travelling microscope with the horizontal axis of the eyepiece level with the upper surface of the su
22、pport plate, giving and enlargement of 20 and having a precision of reading of 0,05 mm. 4.5 Capillary material placed on each support plate, consisting of neutral cellulose paper, e.g. make-up removal tissue normally weighing 17 g/m 2 , used in double thickness as supplied, and minimum dimensions 21
23、0 mm 210 mm. 4.6 Test liquid, e.g. distilled water containing 0,30 % pure sodium alkyl sulfate. 5 Sampling and preparation of test pieces Take a representative sample from the available material. Take five flat test pieces at equal distances acrossthe sample, the distance between the outer edge ofth
24、e sample and the nearest edge of the testpiecebeing at least 100 mm, of dimensions(150 5) mm (150 5) mm. 6 Conditioning Condition the test pieces at a temperature of (23 2) C and relative humidity (50 5) % for a minimum of 24 h. Maintain these conditions when carrying out the test. 7 Procedure Sprea
25、d the cellulose paper which has been moistened with the test liquid over the support plates in the container, taking care to avoid stretching it or folding it or allowing bubbles to form. Burst small bubbles with a pin. Make notches in the paper at each corner over a radius of approximately 10 mm. P
26、lace the test piece onto the paper, with the wear surface uppermost, ensuring that there is no overlap. Place the container on the swivelling platform. In turn, measure the vertical distance between the upper surface of the support plate and the underside of the test piece. NOTEThe mean of the four
27、readings represents the initial measurement; these four readings should not differ by more than 0,25 mm. Adjust the level of the liquid in the container and top up during the test as necessary. Repeat the measurements of the vertical distance 48 h after the beginning of the test. 8 Calculation and e
28、xpression of results Calculate the curl or curvature of the test piece from the difference between the measurement after 48 h and the initial measurement. Calculate the mean value of the four lowest recorded curvature values from the five test pieces and express the result in millimetres to one deci
29、mal place. 9 Test report The test report shall contain the following information: a) reference to this standard i.e. EN 662; b) a complete identification of the product tested, including type, source and manufacturers reference numbers; c) the previous history of the sample; d) the mean of the four
30、lowest values for curl; e) any deviations from this standard which may have affected the results.4 blankBSEN662:1995 BSI 11-1999 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted to Technical Committee P
31、RI/60, Resilient floor coverings, upon which the following bodies were represented: British Adhesives and Sealants Association British Floor Covering Manufacturers Association British Railways Board British Rubber Manufacturers Association Ltd. Consumer Policy Committee of BSI Contract Flooring Asso
32、ciation Cork Industry Federation Department of the Environment (British Board of Agrment) Department of the Environment (Building Research Establishment) Federation of Plastering and Drywall Contractors Institute of Chartered Arbitrators Royal Institute of British Architects Wood Panel Products Fede
33、ration Coopted membersBS EN 662:1995 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Cha
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