1、STD.BS1 BS EN 22455-ENGL 1999 2624bb9 0829893 525 .I BRITISH STANDARD Resilient floor coverirgs - Specification for corkment underlay The European Standard EN 12455:1999 has the stab of a British Standard ICs 97.150 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 12455:1
2、999 STDmBSI BS EN 12455-ENGL L W lb24hh9 0839894 451 m BS EN 12466:1999 AmdNo. Date This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 December 1
3、999 Comments O BSI 12-1999 ISBN O 580 35229 3 National foreword This British Standard is the English language version of EN 124551999. The UK participation in its prepasation was entrusted to Technical Committee PRVGO, Resilient floor coverings, which has the responsibility to: - aid enquirers to un
4、derstand the text; - present to the responsible European committee any enquiries on the - monitor related intemational and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informd, them in the UK. A list of organizations represented on this comm
5、ittee 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 “Inkrnational Standards Correspondence Index“, or by us
6、ing the “Find“ 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 immunit
7、y from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 6, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. STD-BSI BS EN L2455-ENGL 1
8、999 D 3624bb9 0839895 398 W EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12455 September 1999 ICs 97.150 English version Resilient floor coverings - Specification for corkment underlay Revtements de sol rsilients - Spcifications pour les sous-couches de composition de lige Elastische Bodenbe
9、lge - Spezifikation fr Korkmentunterlagen This European Standard was approved by CEN on 13 August 1999. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this Europsan Standard the status of a national standard without any alteration.
10、Up-to-date lists and bibliographical references concerning srch 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 traistation u
11、nder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as he officiai versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lu
12、xembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Central Secretariat: rue de Stassart, 36 8-1050 Brussels O 1999 CEN All rights of exploitation in any form and
13、by any means reserved worldwide for CEN national Members. Ref. NO. EN 12455:1999 E Page 2 EN 12455:1999 Foreword This European Standard has been prepared by Technical Committee CENTTC 134 “Resilient and textile floor coverings”, the Secretariat of which is held by BSL This European Standard shall be
14、 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2000, and conflicting national standards shall be withdrawn at the latest by March 2000. According to the CENKENELEC Internal Regulations, the national standards organizatio
15、ns 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. O BSI 12-1999 STDmBSI BS EN
16、 L2455-ENGL 3999 I Lb24bb9 OB19897 LbO = Page 3 EN 12455:1999 1 Scope This European Standard specifies the requirements of corkment underlay with linoleum cement as binder, supplied in sheet form. Corkment underlay is used in combination with floor coverings to improve impact sound reduction. The pe
17、rformance therefore depends on the combination of corkment and the type of floor covering used and also the installation of both. To ensure correct use of corkment underlay the instructions of the manufacturer should be followed. NOTE: For specification of cork underlays made with other binders, see
18、 EN 12103. 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 the publications are listed hereafter. For dated references, subsequent amendments t
19、o 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 426, Resilient floor coverings - Determination of width, length, straightness and fl
20、atness of sheet material EN 428, Resilient floor coverings - Determination of overall thickness EN 429, Resilient floor coverings - Determination of the thickness of layers EN 430, Resilient floor coverings - Determination of mass per unit area EN 433, Resilient floor coverings - Determination of re
21、sidual indentation after static loading EN 435, Resilient floor coverings - Determination of flexibility EN 670, Resilient floor coverings - Identification of linoleum and determination of cement content and ash residue EN 672, Resilient floor coverings - Determination of apparent density of agglome
22、rated cork 3 Definitions For the purposes of this standard, the following definitions apply: 3.1 corkment backing or underlay product produced by calendering a homogeneous mixture of linoleum cement, granulated cork, pigments and inorganic fillers, on a fibrous backing. The product is then converted
23、 into its final form by an oxidative curing process. NOTE: The only chemical cross-linking bondings in corkment will be those which are formed during the oxidation process. O BSI 12-1999 STD-BSI BS EN L2455-ENGL 1999 M Lb24669 0839898 OT7 D Page 4 EN 12455: I999 3.2 linoleum cement binder in corkmen
24、t, consisting of a mixture of linseed oil and/or other vegetable drying oils, rosin and drying oil catalysts, which is converted to a semi-elastic mass by an oxidative curing process. 4 Identification Corkment shall be identified by its ability to be disintegrated in 0,5 mol/l potassium hyd roxidehn
25、ethanol solution. The maximum amount of inorganic filler (ash residue) shall be 10% when tested in accordance with EN 670. 5 Requirements Corkment underlay shall conform to the appropriate requirements specified in table 1 when tested in accordance with the methods given therein. Q BSI 12-1999 STDaB
26、SI BS EN L2Y55-ENGL 1997 H LbZ4bb9 0839899 T33 I ength and width of roll Page 5 EN 12455:1999 Requirement Not less than the nominal herall thickness mm ,verage idividual values values Nominal value +0,30/-0,20 Nominal value +0,35/-0,25 1 hickness of backing mm I werage !ass per unit area kverage Tit
27、ial indentation after 5 s static loading iverage mm Jominal thickness r2,5 mm z 4,O mm 9 4.0 mm 3esidual indentation after static loading hverage mm Nominal thickness c2,5 mm 2 4,O mm 4,O mm Flexibility Thickness Mandrel (nominal) diameter 123 mm 30 mm 5 4,O mm 40 mm 4.0 mm 50 mm 5 0,80 lominal valu
28、e +lu-1 O % 5 750 I1,5 I2,O I 3.0 I0,3 I 0,4 I 0,7 Shall show no signs of cracking when bent around the appropriate mandrel est method iN 426 EN 428 :N 429 iN 430 IN 672 fN 433 EN 433 EN 435, method A O BSI 12-1999 Page 6 EN 12455: I 999 6 Marking Corkment underlay and/or its packaging shall bear th
29、e following marking: a) number and date of this European Standard, .e. EN 12455:1999; b) manufacturers or suppliers identification or trade mark; c) product name; d) e) length, width and thickness. colour or pattern, and batch/roli number if applicable; O BSI 12-1999 BS EN 12455:1999 BSI 389 Chiswic
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