prEN ISO 20871

SLOVENSKI STANDARD
01-april-2016
Obutev - Preskusne metode za zunanje podplate - Odpornost proti odrgnjenju
(ISO/DIS 20871:2016)
Footwear - Test methods for outsoles - Abrasion resistance (ISO/DIS 20871:2016)
Schuhe - Prüfverfahren für Laufsohlen - Abriebwiderstand (ISO/DIS 20871:2016)
Chaussures - Méthodes d'essai applicables aux semelles d'usure - Résistance à
l'abrasion (ISO/DIS 20871:2016)
Ta slovenski standard je istoveten z: prEN ISO 20871
ICS:
61.060 Obuvala Footwear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT INTERNATIONAL STANDARD
ISO/DIS 20871
ISO/TC 216 Secretariat: AENOR
Voting begins on: Voting terminates on:
2016-01-28 2016-04-28
Footwear — Test methods for outsoles — Abrasion
resistance
Chaussures — Méthodes d’essai applicables aux semelles d’usure — Résistance à l’abrasion
ICS: 61.060
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the European Committee for Standardization
(CEN), and processed under the CEN lead mode of collaboration as defined in the
Vienna Agreement.
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bodies for a parallel five month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments
received, will be submitted to a parallel two-month approval vote in ISO and
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THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
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ISO/DIS 20871:2015(E)
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PROVIDE SUPPORTING DOCUMENTATION. ISO 2015

ISO/DIS 20871:2015(E)
© ISO 2015, Published in Switzerland
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ISO/WD 20871
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 20871 was prepared by Technical Committee ISO/TC 216, Footwear, Subcommittee SC , and by
Technical Committee CEN/TC 309, Footwear in collaboration.
This second/third/. edition cancels and replaces the first/second/. edition (), [clause(s) / subclause(s) /
table(s) / figure(s) / annex(es)] of which [has / have] been technically revised.

WORKING DRAFT ISO/WD 20871
Footwear — Test methods for outsoles — Abrasion resistance
1 Scope
This International standard specifies a method for the determination of the abrasion resistance for outsoles,
irrespective of the material.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute
provisions of this International Standard. For dated references, subsequent amendments to, or revisions of,
any of these publications do not apply. However, parties to agreements based on this International Standard
are encouraged to investigate the possibility of applying the most recent editions of the normative documents
indicated below. For undated references, the latest edition of the normative document referred to applies.
Members of ISO and IEC maintain registers of currently valid International Standards.
ISO 18454, Footwear. Standard atmospheres for conditioning and testing of footwear and components for
footwear.
ISO 17709, Footwear. Sampling location of components for footwear.
ISO 2420, Leather. Determination of apparent density.
ISO 2781, Rubber vulcanized. Determination of density.
ISO 4649, Rubber. Determination of abrasion resistance using a rotating cylindrical drum device.
3 Terms and definitions
For the purposes of this standard the following definitions apply:
3.1
abrasion resistance
the resistance to wear by mechanical action upon a surface
3.2
relative mass loss
the mass loss, in milligrams, of the outsole after being subjected to abrasion by an abrasive cloth will cause
the appropriate standard rubber to lose a mass of 200 mg under the preferred conditions, namely a distance
of 40 m, a load of 10 N and using a non-rotating test piece
3.3
relative volume loss
the volume loss, in cubic millimetres, of the test rubber after being subjected to abrasion by an abrasive cloth
will cause the appropriate standard rubber (see clause B.1 of ISO 4649) to lose a mass of 200 mg under the
preferred conditions, namely a distance of 40 m, a load of 10 N and using a non-rotating test piece
ISO/WD 20871
4 Apparatus and materials
The following apparatus and material shall be used:
4.1 Abrasion machine
The test apparatus (see figure 1) consists of a laterally movable test piece holder and a rotatable cyli
...