1、BRITISH STANDARD Textile floor coverings - Determination of wool fibre integrity using an abrasion machine The European Standard EN 1813 : 1997 has the stab of a Briish Standard ICs 59.080.60 BS EN 1813 : 1998 STD-BSI BS EN lAL3-ENGL 1778 = LbZibbS Ob81514 707 direction of the Sedor Board for Materi
2、als and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 February 1998 bd No. BS EN 1813 : 1998 D - present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the K interesls informed - monitor r
3、elated international and European developments and promulgate them in the UK A list of organizations represented on this 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 m
4、ay be found in the BSI Standards Catalogue under the secljon entitled Internaonal Standards Correspondence index, or by using the Find facility of the BSI Standarcls Electsonic Catalogue. A British standard does not purport to include ali the necessary provisions of a contract. Users of British Stan
5、dards are responsible for their correct application. 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 a back cover. 0
6、BSI 1998 I I ISBN O 580 29121 9 STD.BS1 BS EN LBL3-ENGL 1778 Lb24bbS UbL515 b43 9 EUROPEAN STANDARCD NORIME EUROPENNE IXJROPCHE NOFM EN 1813 October 1997 ICs 59.080.60 Descriptors: Textiles, floor coverings, textile floor coverings, textile fibres, wool fibres, nylon, tests, wear, test equipment Eng
7、lish vemion Textile floor coverings - Determination of wool fibR integrity usin$ an abmion machine Revtements de sol txtiles - Dtermination de iintgrit des Ebres de laine a laide dun abmimtre Scheuerbeanspruchung %xtile Bodenbelage - Besthmung der Widerstandsfweit von Wolle gegen This European Stand
8、ard was approved by CEN on 26 September 1997. 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 concernin
9、g such national standards may be obtained on application to the Centrai Secretanat or to any CEN member. This European Standard exists in three official versions (Enghsh, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own langua
10、ge and notified to the Central Secretariat has the same status as the officiai 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, Sw
11、itzerland and United Kingdom. European Committee for Standardization Comit Europen de Normalisation Europisches Komitee k Normung Central Secretariat: rue de Stassart 36, B-1060 Brussels O CEN 1997 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. R
12、ef. No. EN 1813 : 1997 E Page 2 EN 1813 : 1997 Foreword This European Standard has been prepared by khnical Committee CENirC 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 publica
13、tion of an identical text or by endorsement, at the latest by 4d 1998, and conflicting national standards shaii be withrawn at the latest by Apd 1998. According to the CEN/CENELEC Internai Regulations, the national standards organizations of the foilowing countries are bound to implement this Europe
14、an Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceand, Irehd, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerand and the United Kingdom. O BSI 1998 * * rn 1 scope This European Standard specifies a method for the determination of fi
15、bre damage in the pile of textile floor coverings ha* a pile material of at least 80 % wool. 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 th
16、e 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 20
17、139 IS0 1957 Text.iles - Standaml atmospheres for conditioning and testing (IS0 139 : 1973) Machine-made textile Joor coverings - Sumpling and cutting specimens for phs/sical tests 3 Principle Circular specimens are abraded against a specified fabric for a set number of revolutions and the mass loss
18、 detennined. The abradant is mounted in a large head and the specimen to be abraded in a smaller head. The heads are offset from each other and rotated at the same speed. This method gives a constant relative velocity over the surface of the specimen and thus relatively even wear. 4 Apparatus 4.1 Ca
19、lpet abrasion machinel), consisting of a circular specimen holder rotating at approximately the same speed and in the same direction as the circulas abradant, but with the axes of rotation offset and having the following characteristics: - rotational speed of specimen holder and abradant holder: 156
20、 rpm * 3 rpm; - exposed area of specimen: approximately 645 mm2; - exposed area of abradant: approximately - distance between axes of specimen holder and abradant: 25,4 mm k 0,2 mm; - abrading pressure: 5,4 N/m2 * 0,l Nh2. 11000 mm2; Page 3 EN 1813 : 1997 4.2 Standard abrudunt f - thread diameter: 1
21、50 pm 10 pm; - mesh count (23,3 * 1) threads per centimetre (wasp and weft); - fabric thickness: 260 pm * 10 pm; - mass per unit area: 118 gh2 k 5 gm2. The standard abradant is mounted in the abraant holder over a piece of wool felt. The felt used is of mass 750 g/m2 k 50 g/m2 and 2,5 mm 0,3 mm thcl
22、$). 4.3 Wghing balance, capable of measuring masses approximately of 350 g with an accuracy of * 10 mg. 4.4 5bft bristle brush, for removal of loosened fibre prior to weighings. 6 Sampling and preparation of test specimens Using a cutting die and press, cut pile side up four circular specimens of ap
23、proximately 37,5 mm diameter from the material to be tested, following the procedure described in IS0 1957. 6 Conditioning Condition the test specimens left flat, pile side uppermost, in the standard atmosphere for testing textiles defined in EN 20 139, for a minimum of 24 h. 7 %st procedure 7.1 Mou
24、nt a specimen in the specimen holder, taking care to ensure tha the specimen is flat. If necessm, trim the outer tufts to facilitate entry into the holder. Using a tensioning device (usually a torque wrench) clamp the specimen in the holder with a torque of aproximately 6,5 N.m and brush any loose t
25、ufts from the pile surface. 7.2 Weigh the specimen holder complete with mounted specimen and record the iniM mass (mi) to 10 mg accuracy. 7.3 Fit the specimen holder in position on the machine. 7.4 Insert a new disc of the standard abradant with the felt backing in the abradant holder and fit the ho
26、lder into position on the machine. )A suitable machine is available from BlTG Wira House, West Park Ring Road, Leeds E16 6QL, UK. This information is given for the convenience of users of the standard and does not constitute an endorsement by CEN of the product. Equivalent products may be used if th
27、ey can be shown to lead to the same results. )A suitable abradant fabric, reference PE 280 is the initial mass of the specimen, in grams; is the nal mass of the specimen, in grams. mf If the 2500 cycles end point is used, the calculation is: where mL = 2(? - %,6 is the final mass of specimen after 2
28、500 cycles, in grams. 9 Wst report The test report shall contain the following information: a) reference to this standard, ie. EN 1813; b) a complete identification of the product tested, including type, source, colour and manufacturers reference; c) previous history of the sample; d) the average ma
29、ss loss and coefficient of variation; e) any deviation from this standard, including the number of cycles used, if different from 5000 cycles. 8.2 Calculate the average mass loss per 5ooo cycles in grams, the standard deviation, and the coefficient of variation. O BSI 1998 BS EN 1813 : 1998 BSI 389
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