BS EN 672-1997 Resilient floor coverings - Determination of apparent density of agglomerated cork《弹性地板覆盖物 软木块制品表面密度的测定》.pdf

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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 672 : 1997 The Euro

2、pean Standard EN 672 : 1996 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 apparent density of agglomerated corkBS EN 672 : 1997 This British Standard, having been prepared under the di

3、rection of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 June 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference PRI/60 Draft for comment 92/38645 DC ISBN 0 580 27332

4、 6 Amendments issued since 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

5、 Sealants Association British 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 Agre ment) Departmen

6、t of the Environment (Building Research Establishment) Institute of Chartered Arbitrators Royal Institute of British Architects Wood Panel Industries FederationBS EN 672 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Method 1 Scope 3 2 Norma

7、tive references 3 3 Principle 3 4 Apparatus 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 3ii BSI 1997 BS EN 672 : 1997 National foreword This British Standard has been prepared by Technical Committee PRI/60 and i

8、s the English language version of EN 672 : 1996 Resilient floor coverings Determination of apparent density of agglomerated cork, published by the European Committee for Standardization (CEN). EN 672 : 1996 was produced as a result of international discussion in which the United Kingdom took an acti

9、ve part. Cross-references Publication referred to Corresponding British Standard EN 427 : 1994 BS EN 427 : 1994 Resilient floor coverings Determination of side length, squareness and straightness of tiles EN 428 : 1992 BS EN 428 : 1993 Resilient floor coverings Determination of overall thickness Com

10、pliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4, an inside back cover and a back cover.CEN European Committee for Standardization

11、Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 Copyright reserved to CEN members Ref. No. EN 672 : 1996 E EUROPEAN STANDARD EN 672 NORME EUROPE ENNE EUROPA ISCHE NORM December 1996 ICS 91.180 Descriptors: floor cover

12、ings, cork, tests, determination, density (mass volume) English version Resilient floor coverings Determination of apparent density of agglomerated cork Reve tements de sol re silients De termination de la masse volumique dagglome re de lie ge Elastische Bodenbela ge Bestimmung der Rohdichte von Pre

13、kork This European Standard was approved by CEN on 1996-11-30. 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 standard without any alteration. Up-to-date lists and bibliographical ref

14、erences 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 language made by translation under the responsibility of a CEN member

15、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, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,

16、 Switzerland and the United Kingdom.Page 2 EN 672 : 1996 BSI 1997 Foreword This European Standard has been 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 of a national standa

17、rd, either by publication of an identical text or by endorsement, at the latest by June 1997, and conflicting national standards shall be withdrawn at the latest by June 1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound

18、 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 672 : 1996 BSI 1997 1 Scope This European Standard describes a method for

19、 determining the apparent density of agglomerated cork. The method is based on ISO 3810 : 1987. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and

20、 the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN

21、 427 Resilient floor coverings Determination of side length, squareness and straightness of tiles EN 428 Resilient floor coverings Determination of overall thickness 3 Principle A test piece of known dimensions is weighed and its apparent density calculated from the quotient of mass and volume. 4 Ap

22、paratus 4.1 The apparatus described in EN 427 for measuring side length and width of tiles. 4.2 The apparatus described in EN 428 for measuring thickness of tiles. 4.3 Balance, with an error limit of 0,5 g. 5 Sampling and preparation of test pieces Take a representative sample from the available mat

23、erial, and from that take at least five tiles as test pieces. When the sample comprises a pack of tiles, ensure that the first and the last tiles are not used as test pieces. 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

24、. Maintain these conditions when carrying out the test. 7 Procedure Determine the dimensions of each test piece, using the apparatus described in 4.1 and 4.2. Record the dimensions in millimetres to the nearest 0,1 mm. Determine the mass of each test piece in grams, using the balance (see 4.3), and

25、round off to the nearest gram. 8 Calculation and expression of results From the recorded dimensions, calculate the volume of each test piece and then calculate the apparent density r, using the following expression: r =1 0 6 3 M V where M is the mass of each test piece in grams, rounded off to the n

26、earest gram; V is the volume of each test piece in cubic millimetres. Calculate the apparent density result as the mean value of the five determinations, and express the result in kilograms per cubic metre, rounded off to the nearest kilogram per cubic metre. 9 Test report The test report shall cont

27、ain the following information: a) a reference to this standard, i.e. EN 672; b) a complete identification of the product tested, including type, source, manufacturers reference number; c) previous history of the sample; d) the mean value for the apparent density; e) any deviation from this standard

28、which may have affected the results.4 blank BSI 1997 BS EN 672 : 1997 List of references See national foreword.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |

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