BS EN 423-2002 Resilient floor coverings Determination of resistance to staining.pdf
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1、BRITISH STANDARD BS EN 423:2002 Resilient floor coverings Determination of resistance to staining The European Standard EN 423:2001 has the status of a British Standard ICS 97.150 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 423:2002 This British Standard, having been
2、 prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 25 February 2002 BSI 25 February 2002 ISBN 0 580 39123 X National foreword This British Standard is the official
3、English language version of EN 423:2001. It supersedes BS EN 423:1993 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/60, Resilient floor coverings, which has the responsibility to: A list of organizations represented on this committee can be obta
4、ined 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 by using the “ Find
5、” facility of the BSI Standards Electronic Catalogue. 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 legal
6、obligations. aid enquirers 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. Summary of pages T
7、his document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EU
8、ROPISCHE NORM EN 423 December 2001 ICS 97.150Supersedes EN 423:1993 English version Resilient floor coverings - Determination of resistance to staining Revtements de sol rsilients - Dtermination de rsistance aux taches Elastische Bodenbelge - Bestimmung der Fleckenempfindlichkeit This European Stand
9、ard was approved by CEN on 18 November 2001. 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 references concerning
10、 such national standards may be obtained on application to the Management Centre 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 into its own languag
11、e and notified to the Management Centre 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, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switz
12、erland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.
13、 EN 423:2001 E EN 423:2001 (E) 2 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 standard, either by publication of an
14、identical text or by endorsement, at the latest by June 2002, and conflicting national standards shall be withdrawn at the latest by June 2002. This European Standard supersedes EN 423:1993. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun
15、tries 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. ? EN 423:2001 (E) 3 1 Scope This European Standard
16、specifies a method for determining the resistance of a resilient floor covering to those chemical substances it is likely to experience in service. 2 Principle Various chemical substances in liquid or paste form are placed on a test piece for defined periods and removed. After cleaning has been carr
17、ied out the resulting change of appearance is assessed under specified lighting conditions. 3 Apparatus and materials 3.1 Standard laboratory equipment a) pipettes; b) spatulas. 3.2Untreated glass fibre fabric, of mass per unit area (300 to 400) g/m2 and diameter approximately 40 mm. 3.3 Chemical su
18、bstances in liquid or paste form, to be agreed between the interested parties. 3.4 Standard cleaning and stain removal products. 3.4.1 White cotton, in pad or cloth form. 3.4.2 Brushes, hard, unlikely to score the surface. 3.4.3 Warm water, used alone or with the following: a) synthetic detergent, e
19、.g. sodium alkylsulfate; b) soap; c) alkaline products, e.g. washing soda or ammonia solution; d) hydrogen peroxide; e) sodium hypochlorite; f) sodium thiosulfate, 1 % solution; g) oxalic acid. ? EN 423:2001 (E) 4 3.4.4 Denatured ethanol 3.4.5 White spirit 3.4.6 Turpentine 3.5 Abrasives Abrasive sco
20、uring pads, steel wool No. 00 or scouring powder, or abrasive papers, grain size P 240 or finer, used with water. 3.6 Special cleaning products, special products, recommended by the floor covering manufacturer. 3.7Illumination device, comprising a lamp of correlated colour temperature 5 500 K to 6 5
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