SIST EN ISO 4589-1:2000
(Main)Plastics - Determination of burning behaviour by oxygen index - Part 1: Guidance (ISO 4589-1:1996)
Plastics - Determination of burning behaviour by oxygen index - Part 1: Guidance (ISO 4589-1:1996)
Guidance document for the determination of burning behaviour of plastics by the oxygen index (OI). Provides information to guide the reader in the use of the test procedures described in parts 2 and 3.
Kunststoffe - Bestimmung des Brandverhaltens durch den Sauerstoff-Index - Teil 1: Anleitung (ISO 4589-1:1996)
1.1 Dieser Teil von ISO 4589 enthält eine Anleitung für die Bestimmung des Sauerstoff-Index. Er gibt Informationen, um den Leser bei der Anwendung der in den Teilen 2 und 3 festgelegten Prüfverfahren anzuleiten. 1.2 In Teil 2 wird ein Verfahren zur Bestimmung der minimalen Sauerstoffkonzentration, als Volumenanteil in %, in einem Gemisch aus Sauerstoff und Stickstoff, das bei einer Temperatur von (23 +/- 2)°C zugegeben wird und die Verbrennung eines Werkstoffes unter festgelegten Prüfbedingungen gerade noch unterstützt, beschreiben.
Plastiques - Détermination du comportement au feu au moyen de l'indice d'oxygene - Partie 1: Guide (ISO 4589-1:1996)
Polimerni materiali - Določanje gorljivosti s kisikovim indeksom - 1. del: Smernice (ISO 4589-1:1996)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4589-1:2000
01-maj-2000
3ROLPHUQLPDWHULDOL'RORþDQMHJRUOMLYRVWLVNLVLNRYLPLQGHNVRPGHO 6PHUQLFH
,62
Plastics - Determination of burning behaviour by oxygen index - Part 1: Guidance (ISO
4589-1:1996)
Kunststoffe - Bestimmung des Brandverhaltens durch den Sauerstoff-Index - Teil 1:
Anleitung (ISO 4589-1:1996)
Plastiques - Détermination du comportement au feu au moyen de l'indice d'oxygene -
Partie 1: Guide (ISO 4589-1:1996)
Ta slovenski standard je istoveten z: EN ISO 4589-1:1999
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 4589-1:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 4589-1:2000
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SIST EN ISO 4589-1:2000
INTERNATIONAL IS0
STANDARD 4589-l
First edition
1996-l 2-I 5
Plastics - Determination of burning
behaviour by oxygen index -
Part 1:
Guidance
Plastiques - DBtermination du comportement au feu au moyen de I’indice
d’oxygkne -
Parfie 1: Guide
Reference number
IS0 4589-1:1996(E)
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SIST EN ISO 4589-1:2000
ISO .4589-l :1996(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0
member bodies). The work of preparing International Standards is normally carried out through IS0 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. IS0 collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
technical committees are circulated to the member bodies for voti
Draft International Standards adopted by the
w
res approval by at least 75 % of the me mbe r bodies casting a vote.
Publication as an International Standard requi
International Standard IS0 4589-1 was prepared by Technicall Committee ISO/TC 61, Plastics, Subcommittee SC 4,
Burning behaviour.
Together with parts 2 and 3 (see below), this part of IS0 4589 cancels and replaces IS0 4589:1984, which has
been technically revised.
IS0 4589 consists of the following parts, under the general title, Plastics - Determination of burning behaviour by
oxygen index:
- Part 1: Guidance
- Parf 2: Ambient-temperature test
- Part 3: Elevated-temperature test
Annex A of this part of IS0 4589 is for information only.
0 IS0 1996
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 l CH-1211 Geneve 20 l Switzerland
Internet: central @ isocs.iso.ch
x.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii
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SIST EN ISO 4589-1:2000
0 IS0
IS0 4589-l :1996(E)
Introduction
The oxygen index (01) test at ambient temperature was first described by Fenimore and Marti#] in 1966. The first
use of the method in standards was ASTM Standard Test Method D 2863:1970[6], and it has since been published
in a wide range of national and international standards. It was published as IS0 4589 in 1984 and has now been
revised as IS0 4589-2. The 01 test at elevated temperatures is described in IS0 4589-3.
In the period since ASTM D 2863 became a standard, a considerable number of papers have been published about
this test. An example is the review by Weil, Hirschler, et a/[31 relating to the relevance of the test to real fire
situations. Other papers have suggested empirical formulae relating 01 to the amounts of added fire retardant, or
describe practical investigations on the equipment performance (see Kanury[d]). A clear consensus on the value of
the two variants of the test has emerged, however, and it is the purpose of this guidance document to discuss the
use of the equipment and the applicability of both test methods.
. . .
III
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SIST EN ISO 4589-1:2000
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SIST EN ISO 4589-1:2000
INTERNATIONAL STANDARD @ IS0 IS0 4589-l : 1996(E)
- Determination of burning behaviour by oxygen index -
Plastics
Part 1:
Guidance
1 Scope
1 .l This part of IS0 4589 constitutes a guidance document for the 01 test. It provides information to guide the
reader in the use of the test procedures described in parts 2 and 3.
1.2 Part 2 describes a method for determining the minimum concentration of oxygen by percentage volume in a
mixture of oxygen and nitrogen introduced at 23 “6 + 2 “C that will just support combustion of a material under
specified test conditions. The results are defined as 01 values. For comparative purposes, a procedure is also
provided for determining whether or not the 01 of a material lies above some specified minimum value, which is
particularly important for quality control purposes. There is also a procedure for the testing of thin films between
20 pm and 100 pm thickness.
1.3 Part 3 describes methods of carrying out the same determination over a range of temperatures typically
between 25 “C and 150 “C (although temperatures up to 400 “C may be used). The results are defined as 01 values
at the test temperature. Part 3 also describes a method for determining the temperature at which the 01 of the small
vertical test specimens is 20,9. The result is defined as the flammability temperature. Part 3 is not applicable to
materials having an 01 value of less than 20,9 at 23 “C.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of
IS0 4589. At the time of publication, the editions indicated were valid. All standards are subject to revision, and
parties to agreements based on this part of IS0 4589 are encouraged to investigate the possibility of applying the
most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid
International Standards.
IS0 4589-2:1996, plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature
test.
IS0 4589-3:1996, Plastics -
Determination of burning behaviour by oxygen index - Par? 3: Elevated-temperature
test.
3 Principles of the test
3.1 In part 2, the material can be tested either as a rigid specimen or as a flexible specimen in a specified holder
which is mounted in a transparent chimney in which a mixture of oxygen and nitrogen flows upwards in a laminar
flow pattern. After specimen conditioning, the test is carried out at room temperature. This constitutes the test in its
simplest form. In the top-surface ignition procedure, the applied flame is allowed to impinge on the top surface of the
specimen for a maximum time of 30 s coupled with periodic removal of the flame every 5 s to check if the specimen
is burning. This also ensures that the specimen temperature does not rise excessively, since this would normally
lower the 01 value. In the propagating-ignition procedure, the flame is allowed to impinge to a depth of
approximately 6 mm down the vertical sides of the specimen. In the thin-film procedure, the film is wrapped in a 45”
spiral around a rod and taped, after which the rod is withdrawn and the top end of the specimen is cut off at a
distance of 20 mm from the top.
1
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SIST EN ISO 4589-1:2000
0 IS0
IS0 4589-l : 1996(E)
3.2 In part 3, the material is tested in an identical manner, except that the test takes place in a heated column in
which both the incoming gas and the gas passing up the column are heated. At the start of the test, the specimen
and specimen holder are preheated in the gas flow for 240 s + 10 s to allow them to reach temperature equilibrium
prior to testing. The flame is applied for the same length of time as in part 2.
4 Applicability of the test
4.1 The test is used for the quality control of materials, particularly to check the incorporation of flame retardants in
the material under test, and for research and development. This test, in isolation, is insufficient to evaluate the
burning behaviour and should not be used for regulations relating to safety control and consumer protection. The
test provides a sensitive measure of burning materials under controlled laboratory conditions. The results are
dependent upon the specimen size, shape and orientation. Notwithstanding these restrictions, the 01 test is widely
used in the polymer industry as well as by cable-manufacturing companies and by those manufacturing flame
retardants.
4.2 The elevated-temper
...
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