SIST EN ISO 12951:2015
(Main)Textile floor coverings - Determination of mass loss, fibre bind and stair nosing appearance change using the Lisson Tretrad machine (ISO 12951:2015)
Textile floor coverings - Determination of mass loss, fibre bind and stair nosing appearance change using the Lisson Tretrad machine (ISO 12951:2015)
This international standard describes a test method for the determination of mass loss, fibre bind and stair nosing appearance change using a Lisson tretrad machine
Textile Bodenbeläge - Bestimmung des Gewichtsverlustes, der Fasereinbindung und der Treppenkantenprüfung mittels Tretradgerät System Lisson (ISO 12951:2015)
Revêtements de sol textiles - Détermination de la perte de masse, liaison de fibre et changement d'apparence du bord de marche utilisant la machine Lisson Tretrad (ISO 12951:2015)
ISO 12951:2015 spécifie quatre méthodes d'essai de revêtements de sol textiles (avec ou sans thibaude, voir Article 9) à l'aide de la machine Lisson Tretrad.
- essai A : détermination de la perte de masse des revêtements de sol textiles, utilisé également pour évaluer la sensibilité au défibrage de moquettes synthétiques ;
- essai B : détermination du changement d'aspect au nez de marche des revêtements de sol textiles ;
- essai C : détermination de la sensibilité au défibrage des moquettes synthétiques de velours bouclé ;
- essai D : détermination de la sensibilité à l'ébouriffage des revêtements de sol aiguilletés et des revêtements sans velours.
Tekstilne talne obloge - Ugotavljanje masne izgube vlaken in spremembe videza z uporabo Lissonovega aparata Tretrad (ISO 12951:2015)
Ta mednarodni standard opisuje preskusno metodo za določanje masne izgube vlaken in spremembe videza z uporabo Lissonovega aparata Tretrad.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 12951:2015
01-december-2015
1DGRPHãþD
SIST EN 1963:2007
Tekstilne talne obloge - Ugotavljanje masne izgube vlaken in spremembe videza z
uporabo Lissonovega aparata Tretrad (ISO 12951:2015)
Textile floor coverings - Determination of mass loss, fibre bind and stair nosing
appearance change using the Lisson Tretrad machine (ISO 12951:2015)
Textile Bodenbeläge - Bestimmung des Gewichtsverlustes, der Fasereinbindung und der
Treppenkantenprüfung mittels Tretradgerät System Lisson (ISO 12951:2015)
Revêtements de sol textiles - Détermination de la perte de masse, liaison de fibre et
changement d'apparence du bord de marche utilisant la machine Lisson Tretrad (ISO
12951:2015)
Ta slovenski standard je istoveten z: EN ISO 12951:2015
ICS:
59.080.60 Tekstilne talne obloge Textile floor coverings
SIST EN ISO 12951:2015 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 12951:2015
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SIST EN ISO 12951:2015
EN ISO 12951
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2015
EUROPÄISCHE NORM
ICS 59.080.60 Supersedes EN 1963:2007
English Version
Textile floor coverings - Determination of mass loss, fibre
bind and stair nosing appearance change using the Lisson
Tretrad machine (ISO 12951:2015)
Revêtements de sol textiles - Détermination de la perte Textile Bodenbeläge - Bestimmung des
de masse, de la sensibilité au défibrage et du Gewichtsverlustes, der Fasereinbindung und der
changement d'aspect au nez de marche à l'aide la Treppenkantenprüfung mittels Tretradgerät System
machine Lisson Tretrad (ISO 12951:2015) Lisson (ISO 12951:2015)
This European Standard was approved by CEN on 6 August 2015.
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 such national standards may be obtained on application to the CEN-CENELEC 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 the 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,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12951:2015 E
worldwide for CEN national Members.
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SIST EN ISO 12951:2015
EN ISO 12951:2015 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 12951:2015
EN ISO 12951:2015 (E)
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 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 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 Regulations, 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, 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.
3
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SIST EN ISO 12951:2015
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SIST EN ISO 12951:2015
INTERNATIONAL ISO
STANDARD 12951
Second edition
2015-09-15
Textile floor coverings —
Determination of mass loss, fibre bind
and stair nosing appearance change
using the Lisson Tretrad machine
Revêtements de sol textiles — Détermination de la perte de masse,
de la sensibilité au défibrage et du changement d’aspect au nez de
marche à l’aide la machine Lisson Tretrad
Reference number
ISO 12951:2015(E)
©
ISO 2015
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SIST EN ISO 12951:2015
ISO 12951:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
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Tel. +41 22 749 01 11
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copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved
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SIST EN ISO 12951:2015
ISO 12951:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Sampling and selection of test specimens . 5
7 Atmosphere for conditioning and testing . 6
8 Calibration of the apparatus . 6
9 Procedure. 7
9.1 General . 7
9.2 Test A: Determination of mass loss of textile floor coverings, also used to assess
fibre bind of synthetic pile carpets . 7
9.3 Test B: Determination of stair nosing: appearance change of textile floor coverings . 8
9.4 Test C: Determination of fibre bind on synthetic loop pile carpets . 8
9.5 Test D: Determination of fibre bind (hairiness) on needled floorcoverings and
floor coverings without pile. 8
10 Calculation and expression of results . 9
10.1 Test A . 9
10.2 Test B . 9
10.3 Test C .10
10.4 Test D .10
10.5 Unusual phenomena .10
11 Test Report .10
© ISO 2015 – All rights reserved iii
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SIST EN ISO 12951:2015
ISO 12951:2015(E)
Foreword
ISO (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 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 Electrotechnical 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 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 responsible 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 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 ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The 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.
iv © ISO 2015 – All rights reserved
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SIST EN ISO 12951:2015
INTERNATIONAL STANDARD ISO 12951:2015(E)
Textile floor coverings — Determination of mass loss, fibre
bind and stair nosing appearance change using the Lisson
Tretrad machine
1 Scope
This International 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 nosing 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 references
The following documents, in whole or in part, are normatively 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 testing
ISO 1765, Machine-made textile floor coverings — Determination of thickness
ISO 1957, Machine-made textile floor coverings — Selection and cutting of specimens for physical tests
ISO 2424, Textile floor coverings — Vocabulary
ISO 8543, Textile floor coverings — Methods for determination of mass
ISO 9405, Textile floor coverings — Assessment of changes in appearance
EN 1307, Textile floor coverings — Classification of pile carpets
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions, in addition to
those in ISO 2424, apply:
3.1
mass loss per unit area
m
v
difference between the sample mass before and after the wear test, related to the tested area
Note 1 to entry: See Clause 10.
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SIST EN ISO 12951:2015
ISO 12951:2015(E)
3.2
relative mass loss for pile carpets
m
rv
ratio of the mass loss per unit area m as a percentage of the mass of pile per unit area above the
v
substrate (in accordance with ISO 8543)
3.3
I index
TR
index calculated according to the following formula:
100−m
rv
Im=×01, 9
TR AP
100
where
m is the mass per unit area above the substrate in grams per square metre, determined in
AP
accordance with ISO 8543;
m is the relative fibre loss expressed as a percentage.
rv
4 Principle
The 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 Apparatus
5.1 Lisson Tretrad machine
5.1.1 General
A Lisson Tretrad machine comprises of a bed plate, a vacuum cleaning system, and two Tretrad
assemblies (see Figure 1).
2 © ISO 2015 – All rights reserved
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SIST EN ISO 12951:2015
ISO 12951:2015(E)
Key
1 support 2 movement of the Tretrad 3 cog bar 4 Tretrad wheel
5 frame 6 drive 7 foot 8 bed plate
9 specimen 10 dust extraction 11 tension weight
Figure 1 — Lisson Tretrad machine
5.1.2 Bed plate
The 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 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 (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 assemblies
The Lisson Tretrad apparatus has two Tretrad assemblies, each 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 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 soles in position (see Figure 2).
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