CEN ISO/TR 20879:2007

SLOVENSKI STANDARD
01-maj-2007
Obutev - Zahtevane lastnosti za sestavne dele obutve - Zunanji zgornji materiali
(ISO/TR 20879:2007)
Footwear - Performance requirements for components for footwear - Uppers (ISO/TR
20879:2007)
Schuhe - Anforderungen an das Gebrauchsverhalten von Schuhbestandteilen -
Obermaterialien (ISO/TR 20879:2007)
Chaussures - Exigences de performance pour les composants des chaussures - Tiges
(ISO/TR 20879:2007)
Ta slovenski standard je istoveten z: CEN ISO/TR 20879:2007
ICS:
61.060 Obuvala Footwear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CEN ISO/TR 20879
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
February 2007
ICS 61.060
English Version
Footwear - Performance requirements for components for
footwear - Uppers (ISO/TR 20879:2007)
Chaussures - Exigences de performance pour les Schuhe - Anforderungen an das Gebrauchsverhalten von
composants des chaussures - Tiges (ISO/TR 20879:2007) Schuhbestandteilen - Obermaterialien (ISO/TR
20879:2007)
This Technical Report was approved by CEN on 21 August 2006. It has been drawn up by the Technical Committee CEN/TC 309.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TR 20879:2007: E
worldwide for CEN national Members.

Foreword
This document (CEN ISO/TR 20879:2007) has been prepared by Technical Committee
CEN/TC 309 "Footwear", the secretariat of which is held by AENOR, in collaboration with Technical
Committee ISO/TC 216 "Footwear".

TECHNICAL ISO/TR
REPORT 20879
First edition
2007-02-15
Footwear — Performance requirements
for components for footwear — Uppers
Chaussures — Exigences de performance pour les composants des
chaussures — Tiges
Reference number
ISO/TR 20879:2007(E)
©
ISO 2007
ISO/TR 20879:2007(E)
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ii © ISO 2007 – All rights reserved

ISO/TR 20879:2007(E)
Contents Page
Foreword. iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Requirements . 2
4.1 General. 2
4.2 Performance requirements for uppers components for general purpose sports footwear . 3
4.3 Performance requirements for uppers components for school footwear. 5
4.4 Performance requirements for uppers components for casual footwear . 7
4.5 Performance requirements for uppers components for men's town footwear. 9
4.6 Performance requirements for uppers components for cold weather footwear. 11
4.7 Performance requirements for uppers components for women's town footwear. 13
4.8 Performance requirements for uppers components for fashion footwear. 15
4.9 Performance requirements for uppers components for infants' footwear. 16
4.10 Performance requirements for uppers components for indoor footwear . 18
5 Marking and labelling . 19

ISO/TR 20879:2007(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.
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.
In exceptional circumstances, when a technical committee has collected data of a different kind from that
which is normally published as an International Standard (“state of the art”, for example), it may decide by a
simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely
informative in nature and does not have to be reviewed until the data it provides are considered to be no
longer valid or useful.
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/TR 20879 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 309, Footwear, in collaboration with Technical Committee ISO/TC 216, Footwear, in accordance with
the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).

iv © ISO 2007 – All rights reserved

TECHNICAL REPORT ISO/TR 20879:2007(E)

Footwear — Performance requirements for components for
footwear — Uppers
1 Scope
This Technical Report establishes the performance requirements for uppers components for footwear (not for
the finished footwear), irrespective of the material, in order to assess the suitability for the end use. It also
establishes the test methods to be used to evaluate the compliance with the requirements.
This Technical Report applies to uppers for all kinds of footwear as defined in Clause 3.
This Technical Report is intended to be used as a reference between the footwear manufacturer and the
supplier. It is not intended for third party certification of finished shoes destined for the consumer.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 31-0, Quantities and units — Part 0: General principles
EN 1391, Adhesives for leather and footwear materials — A method for evaluating the bondability of
materials — Minimum requirements and material classification
EN 1392, Adhesives for leather and footwear materials — Solvent-based and dispersion adhesives — Test
methods for measuring the bond strength under specified conditions
EN ISO 4047, Leather — Determination of sulphated total ash and sulphated water-insoluble ash
EN ISO 4098, Leather — Chemical tests — Determination of water-soluble matter, water-soluble inorganic
matter and water-soluble organic matter
EN ISO 17693, Footwear — Test methods for uppers — Resistance to damage on lasting
ISO 17694, Footwear — Test methods for uppers and lining — Flex resistance
ISO 17696, Footwear — Test methods for uppers, lining and insocks — Tear strength
ISO 17697, Footwear — Test methods for uppers, lining and insocks — Seam strength
ISO 17698, Footwear — Test methods for uppers — Delamination resistance
ISO 17699, Footwear — Test methods for uppers and lining — Water permeability and absorption
EN ISO 17700, Footwear — Test methods for uppers, linings and insocks — Colour fastness to rubbing
ISO 17701, Footwear — Test methods for uppers, lining and insocks — Colour migration
ISO/TR 20879:2007(E)
ISO 17702, Footwear — Test methods for uppers — Water resistance
ISO 17703, Footwear — Test methods for uppers — High temperature behaviour
ISO 17704, Footwear — Test methods for uppers, lining and insocks — Abrasion resistance
ISO 17705, Footwear — Test methods for uppers, lining and insocks — Thermal insulation
ISO 17706, Footwear — Test methods for uppers — Tensile strength and elongation
ISO 17709, Footwear — Sampling location, preparation and duration of conditioning of samples and test
pieces
EN ISO 19952, Footwear — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 19952 apply.
4 Requirements
4.1 General
This Technical Report establishes two different types of performance requirement.
The essential requirements shall all be taken into account. The additional ones can be additionally agreed by
the component supplier and the footwear manufacturer as indicated in 4.2 to 4.10.
The results of each single analytical determination, as well as the average values, shall be rounded off in
accordance with ISO 31-0.
When taken from finished footwear, the sample shall be prepared in accordance with ISO 17709.
2 © ISO 2007 – All rights reserved

ISO/TR 20879:2007(E)
4.2 Performance requirements for uppers components for general purpose sports footwear
4.2.1 Essential requirements
These essential requirements shall be fulfilled in all cases. See Table 1.
Table 1 — Test methods and properties for general sports footwear — Essential requirements
Test method Property Requirement
ISO 17694 Flex resistance For leather, For coated leather, For other materials,
dry 100 000 cycles dry 100 000 cycles dry 100 000 cycles
a
(w.v.d.) (w.v.d.) (w.v.d.)
wet 20 000 cycles wet 20 000 cycles at − 5 °C 20 000 cycles
(w.v.d.) (w.v.d.) (w.v.d.)
at − 5 °C 20 000 cycles
(w.v.d.)
ISO 17696 Tear strength W 40 N average tear force
EN ISO 17700 Colour fastness Inside staining:
method A: if unlined footwear, must comply W 2/3 after 50 cycles with
perspiration solution
Outside surface colour change and staining:
method A: W 3 (grey scale) after 150 cycles dry and 50 cycles wet.
method B: W 3 to 4 (grey scale) after 512 cycles dry and 128 cycles wet.
a
w.v.d. = without visible damage.
ISO/TR 20879:2007(E)
4.2.2 Additional requirements
These additional requirements should be agreed upon by both component supplier and footwear manufacturer.
See Table 2.
Table 2 — Test methods and properties for general sports footwear — Additional requirements
Subclause Test method Property Requirement
4.2.2.1 EN ISO 17693 Lastability These figures will be influenced by the shape of the footwear
W 7,0 mm (for leather grain crack)
W 6,0 mm (for other materials first damage)
NOTE This test method is only applicable for component before
lasting.
4.2.2.2 ISO 17697 Seam strength W 10 N/mm (method A)
a, b
4.2.2.3 EN 1392 Bondability W 4 N/mm
4.2.2.4 ISO 17699 WVP and WVA WVP W 0,8 mg/cm .h
2 2
If WVP < 2,0 mg/cm .h then WVA W 8,0 mg/cm
4.2.2.5 ISO 17701 Colour migration 24 h, colour change and staining W 4 (grey scale)
4.2.2.6 ISO 17702 Water resistance Penetration time W 60 min, absorption after 60 min u 20 %
(water resistant)
Penetration time W 180 min, absorption after 180 min u 25 %
(highly water resistant)
4.2.2.7 ISO 17703 High temperature The material must keep W 80 % of its original tensile strength
resistance and elongation
4.2.2.8 ISO 17704 Abrasion dry wet No worse than moderate abrasion
resistance degree
25 600 12 800
4.2.2.9 EN ISO 4098 Water soluble u 3 % sulfated ashed water soluble (SAWS)
substance content
EN ISO 4047 u 18 % total water soluble (TWS)
4.2.2.10 ISO 17706 Breaking strength W 10 N/mm, elongation W 15 % (across) and W 7 % (along)
and elongation
4.2.2.11 ISO 17698
...