1、December 2015 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 59.080.60!%J“2399358www.din.deD
2、IN EN ISO 12951Textile floor coverings Determination of mass loss, fibre bind and stair nosing appearance change using the Lisson Tretrad machine (ISO 12951:2015);English version EN ISO 12951:2015,English translation of DIN EN ISO 12951:2015-12Textile Bodenbelge Bestimmung des Gewichtsverlustes, der
3、 Fasereinbindung und der Treppenkantenprfung mittels Tretradgert System Lisson (ISO 12951:2015);Englische Fassung EN ISO 12951:2015,Englische bersetzung von DIN EN ISO 12951:2015-12Revtements de sol textiles Dtermination de la perte de masse, de la sensibilit au dfibrage et du changement daspect au
4、nez de marche laide la machine Lisson Tretrad (ISO 12951:2015);Version anglaise EN ISO 12951:2015,Traduction anglaise de DIN EN ISO 12951:2015-12SupersedesDIN EN 1963:2007-07www.beuth.deDocument comprises 19 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall
5、 be considered authoritative.12.15 DIN EN ISO 12951:2015-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 12951:2015) has been prepared by Technical Committee ISO/TC 219 “Floor coverings” in collaboration with Technical Committee CEN/TC 134 “Resilient, textile and
6、laminate floor coverings” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was DIN-Normenausschuss Kunststoffe (DIN Standards Committee Plastics), Working Committee NA 054-04-09 AA Textile Bodenbelge. The DIN Standards corresponding to the International Standards
7、referred to in this document are as follows: ISO 139 DIN EN ISO 139 ISO 2424 DIN EN ISO 2424 Amendments This standard differs from DIN EN 1963:2007-07 as follows: a) normative references have been updated; b) the term 3.4 “stair suitability” has been deleted; c) the requirements and specifications i
8、n Clauses 5 to 9 have been updated; d) Subclause 10.5 “Unusual phenomena” has been added; e) the Bibliography has been deleted; f) some editorial amendments have been made. Previous editions DIN 54322: 1983-07 DIN EN 1963: 1998-01, 2007-07 DIN EN ISO 12951:2015-12 3 National Annex NA (informative) B
9、ibliography DIN EN ISO 139, Textiles Standard atmospheres for conditioning and testing DIN ISO 2424, Textile floor coverings Vocabulary DIN EN ISO 12951:2015-12 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12951 September 2015 ICS 59.080.60 Supersedes E
10、N 1963:2007English Version Textile floor coverings - Determination of mass loss, fibre bind and stair nosing appearance change using the Lisson Tretrad machine (ISO 12951:2015) Revtements de sol textiles - Dtermination de la perte de masse, de la sensibilit au dfibrage et du changement daspect au ne
11、z de marche laide la machine Lisson Tretrad (ISO 12951:2015) Textile Bodenbelge - Bestimmung des Gewichtsverlustes, der Fasereinbindung und der Treppenkantenprfung mittels Tretradgert System Lisson (ISO 12951:2015) This European Standard was approved by CEN on 6 August 2015. CEN members are bound to
12、 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 such national standards may be obtained on application to the CEN-CE
13、NELEC 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 language and notified to the CEN-CENELEC Management Centre has t
14、he same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem
15、bourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussel
16、s 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12951:2015 EForeword 1 Scope .2 Normative references 3 Terms and definitions .4 Principle 5 Apparatus .6 Sampling and selection of test specimens .7 Atmosphere for conditio
17、ning and testing .8 Calibration of the apparatus .9 Procedure9.1 General 9.2 Test A: Determination of mass loss of textile floor coverings, also used to assess fibre bind of synthetic pile carpets .9.3 Test B: Determination of stair nosing: appearance change of textile floor coverings 9.4 Test C: De
18、termination of fibre bind on synthetic loop pile carpets 9.5 Test D: Determination of fibre bind (hairiness) on needled floorcoverings and floor coverings without pile10 Calculation and expression of results 10.1 Test A 10.2 Test B 10.3 Test C 1410.4 Test D 1410.5 Unusual phenomena . 1411 Test Repor
19、t .14Contents PageEuropean foreword 3EN ISO 12951:2015 (E) 241313131212121111111010966555DIN EN ISO 12951:2015-12 European foreword This document (EN ISO 12951:2015) has been prepared by ISO/TC 219 “Floor coverings in collaboration with Technical Committee CEN/TC 134 “Resilient, textile and laminate
20、 floor coverings” the secretariat of which is held by NBN. ”This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be withdrawn at the latest by March
21、 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1963:2007. According to the CEN-CENELEC Internal Re
22、gulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,
23、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 12951:2015 has been approved by CEN as EN ISO 12951:2015 without any modification. EN ISO 12
24、951:2015 (E) 3DIN EN ISO 12951:2015-12 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body
25、 interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotec
26、hnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO
27、documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held respo
28、nsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given
29、for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following U
30、RL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 219, Floor coverings.This second edition cancels and replaces the first edition (ISO 12951:1999), which has been technically revised.EN ISO 12951:2015 (E) 4DIN EN ISO 12951:2015-12 1 ScopeThis International
31、 Standard specifies four methods of test of textile floor coverings (with or without an underlay, see Clause 9) using the Lisson Tretrad machine. test A: determination of mass loss of textile floor coverings, also used to assess fibre bind of synthetic pile carpets; test B: determination of stair no
32、sing appearance change of textile floor coverings; test C: determination of fibre bind on synthetic loop pile carpets; test D: determination of fibre bind (hairiness) on needled floor coverings and floor coverings without pile.2 Normative referencesThe following documents, in whole or in part, are n
33、ormatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 139, Textiles Standard atmospheres for conditioning and
34、 testingISO 1765, Machine-made textile floor coverings Determination of thicknessISO 1957, Machine-made textile floor coverings Selection and cutting of specimens for physical testsISO 2424, Textile floor coverings VocabularyISO 8543, Textile floor coverings Methods for determination of massISO 9405
35、, Textile floor coverings Assessment of changes in appearanceEN 1307, Textile floor coverings Classification of pile carpets3 Terms and definitionsFor the purposes of this International Standard, the following terms and definitions, in addition to those in ISO 2424, apply:3.1mass loss per unit aream
36、vdifference between the sample mass before and after the wear test, related to the tested areaNote 1 to entry: See Clause 10.EN ISO 12951:2015 (E) 5DIN EN ISO 12951:2015-12 3.2relative mass loss for pile carpetsmrvratio of the mass loss per unit area mvas a percentage of the mass of pile per unit ar
37、ea above the substrate (in accordance with ISO 8543)3.3ITRindexindex calculated according to the following formula:ImmTR APrv=019100100,wheremAPis the mass per unit area above the substrate in grams per square metre, determined in accordance with ISO 8543;mrvis the relative fibre loss expressed as a
38、 percentage.4 PrincipleThe specimens of a textile floor covering are exposed, at constant load and slippage and for a prescribed number of double passages, to the action of a four-footed wheel (Tretrad), the feet of which are fitted with interchangeable rubber soles.5 Apparatus5.1 Lisson Tretrad mac
39、hine5.1.1 GeneralA Lisson Tretrad machine comprises of a bed plate, a vacuum cleaning system, and two Tretrad assemblies (see Figure 1).EN ISO 12951:2015 (E) 6DIN EN ISO 12951:2015-12 Key1 support 2 movement of the Tretrad 3 cog bar 4 Tretrad wheel5 frame 6 drive 7 foot 8 bed plate9 specimen 10 dust
40、 extraction 11 tension weightFigure 1 Lisson Tretrad machine5.1.2 Bed plateThe bed plate faces are parallel to the track travelled by the Tretrad feet and the front edge of the plate is rounded with a 10 mm radius to simulate a stair nosing.The test surface is formed by the width of the Tretrad feet
41、 and the length of the track over which the Tretrad runs. The track length shall be determined for each machine by measuring the distance between the front edge of the base plate and the perpendicular projection of the Tretrad axis at its furthermost point of reversal. The length of track shall be (
42、800 20) mm.Two clamps mounted at each end of the bed plate are used to hold each specimen under tension. The tension is applied by means of a weighted third clamp, each specimen being subjected to a force of (20 2) kg.5.1.3 Tretrad assembliesThe Lisson Tretrad apparatus has two Tretrad assemblies, e
43、ach of which comprises a Tretrad mounted in a frame that is free to rotate around an axis that is 135 mm to 140 mm above the upper surface of the bed plate.Each Tretrad comprises four equally-spaced legs with rigidly attached feet platforms.The surface of the foot platform has a radius of curvature
44、of (112,5 1) mm, a circumferential length of (100,0 1,0) mm, and a width of (55,0 0,5) mm. The ends of the contact surfaces of the platforms are rounded with a radius of (4,0 0,5) mm.The vertical force applied by the Tretrad feet, in the stationary state, shall be (15,0 2,0) kg measured without the
45、soles in position (see Figure 2).EN ISO 12951:2015 (E) 7DIN EN ISO 12951:2015-12 The linear speed of the Tretrad is (0,28 0,02) m/s and the peripheral speed of the Tretrad with sole coverings is (20,0 2,0) % greater than the linear speed. This causes slippage of the feet on the test specimen in addi
46、tion to the compressive action.At the front edge of the bed plate, the Tretrad runs beyond the bed and is held horizontally by a height adjustable stopper, in such a way that the lower edge of the foot (without sole material) can be adjusted between 5 mm below and 5 mm above the level of the surface
47、 of the bed plate (see Figure 2).At the points of reversal, the Tretrad remains stationary for approximately 1 s; during this stoppage at the forward point of reversal, the Tretrad is rotated through an angle (but not a right angle) to ensure that the feet walk evenly over the length of the test are
48、a.5.1.4 Vacuum cleaning systemSuction nozzles follow the horizontal movement of the Tretrad assemblies. The nozzles are flexibly mounted and are equipped on their undersides with slides that rest on the edges of the test specimens, thereby not imposing any wear on the specimens.Each nozzle has the d
49、imensions shown in Figure 2 and is connected to the vacuum cleaner to extract the abraded fibre.a) bottom view b) side viewKey1 connection to vacuum2 nozzle casing3 nozzle mouthFigure 2 Vacuum inletThe vacuum cleaner performance shall be such as to produce airflow of at least 30 l/s measured at the connection point of the nozzles by an appropriate anemometer in order to remove loose fibre from the surface of the speci
