BS EN 669-1998 Resilient floor coverings - Determination of dimensional stability of linoleum tiles caused by changes in atmospheric humidity《弹性地板覆盖物 由大气湿度变化引起的油地砖的尺寸稳定性变化的测定 》.pdf

《BS EN 669-1998 Resilient floor coverings - Determination of dimensional stability of linoleum tiles caused by changes in atmospheric humidity《弹性地板覆盖物 由大气湿度变化引起的油地砖的尺寸稳定性变化的测定 》.pdf》由会员分享，可在线阅读，更多相关《BS EN 669-1998 Resilient floor coverings - Determination of dimensional stability of linoleum tiles caused by changes in atmospheric humidity《弹性地板覆盖物 由大气湿度变化引起的油地砖的尺寸稳定性变化的测定 》.pdf（6页珍藏版）》请在麦多课文档分享上搜索。

1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 669 : 1998 The Euro

2、pean Standard EN 669 : 1997 has the status of a British Standard ICS 97.150 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Resilient floor coverings Determination of dimensional stability of linoleum tiles caused by changes in atmospheric humidityThis British Standard, having

3、 been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 January 1998 BSI 1998 ISBN 0 580 28829 3 BS EN 669 : 1998 Amendments issued since publication Amd. No. Date Text affected National

4、foreword This British Standard is the English language version of EN 669 : 1997 published by the European Committee for Standardization (CEN). The UK participation in its preparation was entrusted to Technical Committee PRI/60, Resilient floor coverings, which has the responsibility to: aid enquirer

5、s to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this

6、 committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or b

7、y using the Find facility of the BSI Standards Electronic Catalogue. Compliance 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, the EN title page, pages 2 to 4, an inside back cover and

8、a back cover.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.

9、 EN 669 : 1997 E EUROPEAN STANDARD EN 669 NORME EUROPE ENNE EUROPA ISCHE NORM September 1997 ICS 97.150 Descriptors: Floor coverings, floor tiles, linoleum, tests, dimensional stability tests, dimensional stability, test atmospheres, humidity English version Resilient floor coverings Determination o

10、f dimensional stability of linoleum tiles caused by changes in atmospheric humidity Reve tements de sol re silients De termination de la stabilite dimensionnelle des dalles de linole um due aux variations de lhumidite atmosphe rique Elastische Bodenbela ge Bestimmung der Maa nderung von Linoleum-Pla

11、tten durch Vera nderung der Luftfeuchte This European Standard was approved by CEN on 1997-08-03 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-

12、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 language made by translation under t

13、he 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembo

14、urg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 669 : 1997 BSI 1998 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

15、shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 1998, and conflicting national standards shall be withdrawn, at the latest by March 1998. According to the CEN/CENELEC Internal Regulations, the national standards o

16、rganizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 3 EN 669 : 19

17、97 BSI 1998 1 Scope This European Standard specifies a method for determining the dimensional stability of linoleum tiles caused by changes in atmospheric humidity. 2 Definition For the purposes of this standard the following definition applies. dimensional stability The variation of the distance be

18、tween marks previously made on the test piece after treatment in humid air under specified conditions. 3 Apparatus 3.1 A sliding calliper gauge, or equivalent device, e.g. a table with comparators and stop unit, of accuracy 0,05 mm. 3.2 A smooth, flat surface, with dimensions larger than those of th

19、e tiles, e.g. a plate of thickness$ 10 mm. 3.3 A rigid plate, squared and finished, with dimensions 5 mm to 10 mm less than those of the test pieces. The mass per unit area of the plate shall be approximately 20 kg/m 2 (e.g. steel of thickness 2,5 mm or duralumin of thickness 7 mm). 3.4 Humidity cab

20、inet, or similar device, capable of maintaining test pieces at 23 C and 80 % relative humidity. 4 Sampling and preparation of test pieces Take a representative sample from the available material. Take five tiles from the sample as test pieces. Where a pack of tiles comprises the sample, ensure that

21、the first and last tiles are not selected as test pieces. 5 Conditioning Condition the tiles at a temperature of (23 2) C and relative humidity (50 5) % for a minimum of 24 h. 6 Procedure Scribe three marks along each side of the tile, two approximately 10 mm from the perpendicular edges and the thi

22、rd equidistant from the first two. Place the tile on the flat surface with the squared plate on top. Take three measurements of the marked distance between the opposite sides. Expose the tile to an atmosphere of (23 2) C and (80 5) % relative humidity in the humidity cabinet (3.4) for (24 0,5) h. Re

23、peat the measurements within 10 min of removal from the humidity cabinet. 7 Calculation and expression of result For each tile, calculate the mean value of the three relevant measurements in each direction, before and after exposure at 23 C and 80 % relative humidity. Calculate the change from the i

24、nitial length. Calculate the mean value for the five tiles for each direction expressed as a percentage to the nearest 0,01 %. 8 Test report The test report shall contain the following information: a) a reference to this standard, i.e. EN 669; b) a complete identification of the product tested, incl

25、uding type, source, manufacturers reference numbers; c) previous history of the sample; d) the mean value of dimensional change for each direction; e) any deviation from this standard which may have affected the results.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | |

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