EN ISO 11357-8:2021

SLOVENSKI STANDARD
01-maj-2021
Polimerni materiali - Diferenčna dinamična kalorimetrija (DSC) - 8. del:
Ugotavljanje toplotne prevodnosti (ISO 11357-8:2021)
Plastics - Differential scanning calorimetry (DSC) - Part 8: Determination of thermal
conductivity (ISO 11357-8:2021)
Kunststoffe - Dynamische Differenz-Thermoanalyse (DSC) - Teil 8: Bestimmung der
Wärmeleitfähigkeit (ISO 11357-8:2021)
Plastiques - Analyse calorimétrique différentielle (DSC) - Partie 8: Détermination de la
conductivité thermique (ISO 11357-8:2021)
Ta slovenski standard je istoveten z: EN ISO 11357-8:2021
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11357-8
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2021
EUROPÄISCHE NORM
ICS 83.080.01
English Version
Plastics - Differential scanning calorimetry (DSC) - Part 8:
Determination of thermal conductivity (ISO 11357-
8:2021)
Plastiques - Analyse calorimétrique différentielle (DSC) Kunststoffe - Dynamische Differenz-Thermoanalyse
- Partie 8: Détermination de la conductivité thermique (DSC) - Teil 8: Bestimmung der Wärmeleitfähigkeit
(ISO 11357-8:2021) (ISO 11357-8:2021)
This European Standard was approved by CEN on 25 January 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11357-8:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 11357-8:2021) has been prepared by Technical Committee ISO/TC 61 "Plastics"
in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by
NBN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2021, and conflicting national standards
shall be withdrawn at the latest by September 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 11357-8:2021 has been approved by CEN as EN ISO 11357-8:2021 without any
modification.
INTERNATIONAL ISO
STANDARD 11357-8
First edition
2021-02
Plastics — Differential scanning
calorimetry (DSC) —
Part 8:
Determination of thermal conductivity
Plastiques — Analyse calorimétrique différentielle (DSC) —
Partie 8: Détermination de la conductivité thermique
Reference number
ISO 11357-8:2021(E)
©
ISO 2021
ISO 11357-8:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2021 – All rights reserved

ISO 11357-8:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus and substances. 2
5.1 DSC instrument . 2
5.2 Crucibles . 2
5.3 Melting substance . 2
5.4 Protective lacquer. 3
5.5 Length measuring device . 3
6 Specimens . 3
6.1 Geometry . 3
6.2 Number and sampling . 3
7 Conditioning . 3
8 Calibration . 4
9 Measurement procedure . 4
9.1 Preparation of crucibles . 4
9.2 Use of thermal contact substances . 4
9.3 Measurement of melting substance . 4
9.3.1 Placing of crucibles in sample holder . 4
9.3.2 Distribution of melting substance on crucible ground . 4
9.3.3 Measurement of the slope of the melting curve without test specimen . 5
9.3.4 Insertion of test specimen . 5
9.3.5 Measurement of the slope of the melting curve with test specimen . 5
9.4 Evaluation of the slope of the peaks of the melting substance . 5
10 Calculation of thermal conductivity . 7
11 Service life of crucibles upon using gallium as melting substance .7
12 Precision and bias . 7
13 Test report . 8
Annex A (informative) Interlaboratory determination of thermal conductivity measured by
means of DSC . 9
Bibliography .15
ISO 11357-8:2021(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 5, Physical-
chemical properties, in collaboration with the European Committee for Standardization (CEN) Technical
Committee CEN/TC 249, Plastics, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
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