ISO 4665:1998

Rubber, vulcanized and thermoplastic — Resistance to weathering

Caoutchouc vulcanisé ou thermoplastique — Résistance aux intempéries

General Information

• Status: Withdrawn
• Publication Date: 08-Jul-1998
• Withdrawal Date: 08-Jul-1998
• ICS: 83.060 - Rubber
• Technical Committee: ISO/TC 45/SC 2 - Testing and analysis
• Drafting Committee: ISO/TC 45/SC 2/WG 3 - Degradation tests
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 29-Sep-2006

Relations

• Revised: ISO 4665:2006 - Rubber, vulcanized or thermoplastic — Resistance to weathering
• Effective Date: 15-Apr-2008
• Revises: ISO 4665-1:1985 - Rubber, vulcanized — Resistance to weathering — Part 1: Assessment of changes in properties after exposure to natural weathering or artificial light
• Effective Date: 15-Apr-2008
• Revises: ISO 4665-3:1987 - Rubber, vulcanized — Resistance to weathering — Part 3: Methods of exposure to artificial light
• Effective Date: 15-Apr-2008
• Revises: ISO 4665-2:1985 - Rubber, vulcanized — Resistance to weathering — Part 2: Methods of exposure to natural weathering
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 4665
First edition
1998-07-15
Rubber, vulcanized and thermoplastic —
Resistance to weathering
Caoutchouc vulcanisé ou thermoplastique — Résistance aux intempéries
A
Reference number
ISO 4665:1998(E)

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ISO 4665:1998(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.
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.
International Standard ISO 4665 was prepared by Technical Committee
ISO/TC 45, Rubber and rubber products, Subcommittee SC 2, Physical
and degradation tests.
This edition cancels and replaces ISO 4665-1:1985, ISO 4665-2:1985 and
ISO 4665-3:1987, of which it constitutes a technical revision.
Annex A of this International Standard is for information only.
©  ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet [e-mail]
Printed in Switzerland
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ISO ISO 4665:1998(E)
Introduction
A number of different exposure techniques can be used to provide
information on the effects of environmental stresses such as light, heat and
water on rubbers. Each of these has its own particular application and
relevance. Explanation of, and guidance on, methods for exposure to
natural and artificial weathering is given in the introduction to ISO 877 and
in ISO 4892-1. Particular guidance on exposure to determine resistance to
ozone is given in ISO 1431-1. The methods for exposure to weathering
standardized for plastics materials are essentially suitable for rubbers and
hence this standard refers to the relevant ISO standards for plastics for the
apparatus and procedures.
It is desirable that the procedures for the determination of changes in
properties should be the same whatever exposure is used and that the
results should be expressed in a uniform manner. Such procedures are
specified in this standard.
Exposure to weathering alters the properties of the material, particularly in
the surface layer. The test method used to determine changes in properties
should be selected after consideration of the properties of the material
which are important in its proposed application and taking into account the
fact that degradation may be concentrated at the surface layer. The
methods chosen should be capable of measuring change in properties with
sufficient precision within the ranges which are important in practice, so as
to provide significant criteria of change.
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©
INTERNATIONAL STANDARD  ISO ISO 4665:1998(E)
Rubber, vulcanized and thermoplastic — Resistance to weathering
1  Scope
This International standard specifies methods for the exposure of rubber materials to natural or artificial weathering
and methods for the determination of changes in colour, appearance and physical properties resulting from
exposure.
2  Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this
International Standard. At the time of publication, the editions indicated were valid. All standards are subject to
revision, and parties to agreements based on this International Standard are encouraged to investigate the
possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain
registers of currently valid International Standards.
ISO 105-A02:1993, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour.
ISO 471:1995, Rubber — Temperatures, humidities and times for conditioning and testing.
ISO 877:1994, Plastics — Methods of exposure to direct weathering, to weathering using glass-filtered daylight, and
to intensified weathering by daylight using Fresnel mirrors.
ISO 1431-1:1989, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static strain test.
1)
ISO 4892-1:— , Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance.
ISO 4892-2:1994, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc sources.
ISO 4892-3:1994, Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps.
ISO 4892-4:1994, Plastics — Methods of exposure to laboratory light sources — Part 4: Open-flame carbon-arc
lamps.
ISO 7724-1:1984, Paints and varnishes — Colorimetry — Part 1: Principles.
ISO 7724-2:1984, Paints and varnishes — Colorimetry — Part 2: Colour measurement.
ISO 7724-3:1984, Paints and varnishes — Colorimetry — Part 3: Calculation of colour differences.
———————
1)  To be published. (Revision of ISO 4892-1:1994)
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ISO 4665:1998(E) ISO
3  Definitions
For the purposes of this International Standard, the following definitions apply:
3.1  control: In weathering, the term "control" currently has three widespread uses:
a) A material which is of similar composition and construction to the test material, has a known response to the
exposure conditions and is exposed at the same time for comparison.
NOTE 1  A reference material can be used as the control.
b) A portion of the material to be tested which is stored under conditions in which it is stable and is used for
comparison between the exposed and the original state.
NOTE 2  This definition is deprecated in favour of “file test piece”.
c) A portion of the exposed test piece which is protected from light exposure by masking.
NOTE 3  This definition is deprecated in favour of “masked area”.
3.2  file test piece: A portion of the material to be tested which is stored under conditions in which it is stable and
is used for comparison between the exposed and the original state.
3.3  masked area: A portion of the exposed test piece which is protected from light exposure by masking.
3.4  weathering reference material: A reference material whose weathering degradation properties are well
documented and repeatable when exposed to identical conditions.
3.5  exposure stage: The interval of exposure between determinations of change in properties, expressed as time
or radiation dose.
NOTE 4  Further relevant definitions are given in ISO 877 and ISO 4892.
4  Principle
Test pieces are exposed to natural or artificial weathering and the resulting changes in colour, appearance and
selected physical properties are determined.
5  Exposure to direct weathering, to weathering using glass-filtered daylight and to
intensified weathering by daylight using Fresnel mirrors
Carry out the exposure in accordance with the relevant method of ISO 877, with the following additions and
modifications:
For tests under strain, prepare the test pieces and place them under strain in accordance with ISO 1431-1.
Condition the test pieces in accordance with ISO 471.
6  Exposure to laboratory light sources
Carry out the exposure in accordance with ISO 4892-1 and, as relevant, ISO 4892-2, ISO 4892-3 or ISO 4892-4,
with the following additions and modifications:
For tests under strain, prepare the test pieces and place them under strain in accordance with ISO 1431-1.
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ISO
ISO 4665:1998(E)
Condition the test pieces in accor
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