1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 684 : 1996 The Euro
2、pean Standard EN 684 : 1995 has the status of a British Standard ICS 91.180 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Resilient floor coverings Determination of seam strengthThis British Standard, having been prepared under the direction of the Sector Board for Materials
3、 and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 May 1996 BSI 1996 The following BSI references relate to the work on this standard: Committee reference PRI/60 Draft for comment 92/38965 DC ISBN 0 580 25571 9 BS EN 684 : 1996 Amendments issued sinc
4、e publication Amd. No. Date Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/60, Resilient floor coverings, upon which the following bodies were represented: British Adhesives and Sealants Association Bri
5、tish Railways Board British Resilient Flooring Manufacturers Association British Rubber Manufacturers Association Ltd. Consumer Policy Committee of BSI Contract Flooring Association Cork Industry Federation Department of the Environment (British Board of Agreement) Department of the Environment (Bui
6、lding Research Establishment) Institute of Chartered Arbitrators Royal Institute of British Architects Wood Panel Products Federation BSI 1996 i BS EN 684 : 1996 Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Method 1 Scope 3 2 Definition 3 3 Principle 3 4 Ap
7、paratus 3 5 Sampling and preparation of test pieces 3 6 Conditioning 3 7 Procedure 3 8 Calculation and expression of results 3 9 Test report 3 Figures 1 Principle of test 3 2 Test piece layout 4ii BSI 1996 BS EN 684 : 1996 National foreword This British Standard has been prepared by Technical Commit
8、tee PRI/60 and is the English language version of EN 684 : 1995 Resilient floor coverings Determination of seam strength, published by the European Committee for Standardization (CEN). Compliance with a British Standard does not of itself confer immunity from legal obligations.CEN European Committee
9、 for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 684 : 1995 E
10、 EUROPEAN STANDARD EN 684 NORME EUROPE ENNE EUROPA ISCHE NORM December 1995 ICS 91.180 Descriptors: Floor coverings, welded joints, tests, tension tests, determination, mechanical strength English version Resilient floor coverings Determination of seam strength Reve tements de sol re silients De ter
11、mination de la re sistance de la soudure Elastische Bodenbela ge Bestimmung der Nahtfestigkeit This European Standard was approved by CEN on 1995-11-26. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
12、us 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, French, German). A v
13、ersion 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, France, Germany,
14、Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 684 : 1995 BSI 1996 Foreword This European Standard has been prepared by the Technical Committee CEN/TC 134, Resilient and textile floor coverings, of which the secreta
15、riat is held 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 June 1996, and conflicting national standards shall be withdrawn at the latest by June 1996. According to the CEN/CENELEC Inter
16、nal Regulations, 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 the United Kingdom.Page 3 EN 684 : 1995 BSI 1996 1 S
17、cope This European Standard describes a method for determining the strength of the seams of resilient floor coverings when welded in accordance with the manufacturers instructions. 2 Definition For the purposes of this standard, the following definition applies. Seam strength: The maximum tensile fo
18、rce recorded, for a defined width, when a floor covering is tested under a constant rate of separation. 3 Principle An increasing tensile force is applied to the seam until breakage occurs and the maximum force is recorded (see figure 1). Figure 1. Principle of test 4 Apparatus A tensile testing mac
19、hine, which allows a speed of separation of (100 5) mm/min, and a recording device. 5 Sampling and preparation of test pieces 5.1 Sampling Take a representative sample from the available material. 5.2 Preparation of test pieces Take two pieces of a sheet floor covering of minimum length 1 m and mini
20、mum width 300 mm and weld them together in accordance with the manufacturers instructions. For tiles, weld two tiles together in accordance with the manufacturers instructions. Cut five test pieces of minimum length 150 mm and width (50 0,5) mm at equal distances across the sample, the distance betw
21、een the outer edge of the sample and the nearest edge of the test piece being at least 100 mm, with the seam centrally located across each test piece (see figure 2). 6 Conditioning Condition the test pieces at a temperature of (23 2) C and relative humidity of (50 5) % for a minimum of 24 h. Maintai
22、n these conditions when carrying out the test. 7 Procedure Place the test piece in the jaws (which are approximately 100 mm apart) of the tensile testing machine so that the seam is at an equal distance from the jaws and tension is applied evenly over the width. Set the machine and its recording dev
23、ice in operation such that the speed of separation is (100 5) mm/min. Record the force at break or the maximum force exerted. Repeat the test on the remaining test pieces to obtain five values. 8 Calculation and expression of results Calculate the mean value of the five tests and express the result
24、to the nearest 10 N in N/50 mm. Also record the minimum of the individual values. 9 Test report The test report shall contain the following information: a) a reference to this standard, i.e. EN 684; b) a complete identification of the product tested, including type, source, colour and manufacturers
25、reference numbers; c) previous history of the sample; d) a description of the welding process; e) the mean value of seam strength; f) the minimum value of seam strength; g) the type of failure if not in the seam, e.g. failure due to breaking of test piece; h) any deviation from this standard which m
26、ay have affected the results.Page 4 EN 684 : 1995 BSI 1996 Dimension in millimetres Figure 2. Test piece layoutblankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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