EN ISO 11358:1997

SLOVENSKI STANDARD
SIST EN ISO 11358:1999
01-maj-1999
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Plastics - Thermogravimetry (TG) of polymers - General principles (ISO 11358:1997)
Kunststoffe - Thermogravimetrie (TG) von Polymeren - Allgemeine Grundlagen (ISO
11358:1997)
Plastiques - Thermogravimétrie (TG) des polymeres - Principes généraux (ISO
11358:1997)
Ta slovenski standard je istoveten z: EN ISO 11358:1997
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 11358:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11358:1999

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SIST EN ISO 11358:1999

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SIST EN ISO 11358:1999

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SIST EN ISO 11358:1999
INTERNATIONAL
IS0
STANDARD
11358
First edition
1997-04- 15
Plastics - Thermogravimetry (TG) of
polymers - General principles
Plastiques - Thermogravim&rie (TG) des polymkes -
Principes g&&aux
Reference number
IS0 11358:1997(E)

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SIST EN ISO 11358:1999
IS0 11358:1997(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.
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 IS0 11358 was prepared by Technical Committee
ISO/TC 61, Plastics, Subcommittee SC 5, Physical-chemical properfies.
Annex A of this International Standard is for information only.
0 IS0 1997
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 @ 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 11358:1999
INTERNATIONAL STANDARD @ IS0 IS0 11358:1997(E)
Plastics - Thermogravimetry (TG) of polymers -
General principles
1 Scope
1.1 This International Standard specifies the general conditions for the analysis of polymers using
thermogravimetric techniques.
1.2 It is applicable to liquids or solids. Solid materials may be in the form of pellets, granules or powders.
Fabricated shapes reduced to appropriate specimen size may also be analysed by this method.
1.3 Thermogravimetry can be used to determine the temperature(s) and rate(s) of decomposition of polymers, and
to measure at the same time the amounts of volatile matter, additives and/or fillers they contain.
1.4 The thermogravimetric measurements may be carried out in a dynamic mode (mass change versus
) or an isothermal mode (mass change versus time at constant
temperature or time under programmed conditions
temperature).
2 Normative reference
The following standard contains provisions which, through reference in this text, constitute provisions of this
International Standard. At the time of publication, the edition indicated was 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 edition of the standard indicated below. Members of IEC and IS0 maintain
registers of currently valid International Standards.
- Standard atmospheres for conditioning and testing.
IS0 291 :-‘I, Plastics
3 Definitions
For the purposes of this International Standard, the following definitions apply:
3.1 thermogravimetry (TG): A technique in which the mass of a test specimen is measured as a function of
temperature or time, while the test specimen is subjected to a controlled temperature programme.
3.2 dynamic mass-change determination: A technique for obtaining a record of the variation of the mass of a
test specimen with temperature T which is changing at a programmed rate.
3.3 isothermal mass-change determination: A
...