Plastics — Temperature modulated DSC — Part 3: Separation of overlapping thermal transitions

This document specifies a method for the separation of overlapping thermal transitions of plastics related to reversing and non-reversing heat flow rate, using temperature modulated differential scanning calorimetry.

Plastiques — DSC à température modulée — Partie 3: Séparation des transitions thermiques se chevauchant

General Information

Status
Published
Publication Date
18-May-2021
Current Stage
6060 - International Standard published
Start Date
19-May-2021
Completion Date
19-May-2021
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ISO 19935-3:2021 - Plastics -- Temperature modulated DSC
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INTERNATIONAL ISO
STANDARD 19935-3
First edition
2021-05
Plastics — Temperature modulated
DSC —
Part 3:
Separation of overlapping thermal
transitions
Plastiques — DSC à température modulée —
Partie 3: Séparation des transitions thermiques se chevauchant
Reference number
ISO 19935-3:2021(E)
ISO 2021
---------------------- Page: 1 ----------------------
ISO 19935-3:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 19935-3:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 1

4.1 Temperature modulation, T(t)....................................................................................................................................................1

4.2 Heating rate ............................................................................................................................................................................................... 1

4.3 Heat flow rate, Φ(t) ............................................................................................................................................................................. 1

5 Principles ..................................................................................................................................................................................................................... 2

6 Apparatus and materials.............................................................................................................................................................................. 2

7 Calibration .................................................................................................................................................................................................................. 2

7.1 General ........................................................................................................................................................................................................... 2

7.2 Calibration procedure ....................................................................................................................................................................... 2

7.3 Calibration of modulation amplitude .................................................................................................................................. 2

7.4 Calibration of phase ............................................................................................................................................................................ 2

8 Procedure..................................................................................................................................................................................................................... 2

8.1 General ........................................................................................................................................................................................................... 2

8.2 Experimental conditions ................................................................................................................................................................ 2

8.3 Interpretation of results ................................................................................................................................................................. 2

8.4 Examples of the results — Separation of reversing and non-reversing heat flow rate ............ 2

9 Test report ................................................................................................................................................................................................................... 4

Annex A (informative) Modulated heat flow rate and heating rate of modulation ..............................................5

© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 19935-3:2021(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.
A list of all parts in the ISO 19935 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 19935-3:2021(E)
Introduction

This document specifies a thermoanalytical test method which can be used for the separation of

overlapping thermal transitions in order to obtain comparable data for data sheets or databases as

well as for research purposes. It can also be applied to quality assurance or to routine checks of raw

materials and finished products, if desired. The procedure mentioned in this document apply as long as

special product standards or standards describing special atmospher
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 19935-3
ISO/TC 61/SC 5
Plastics — Temperature modulated
Secretariat: DIN
DSC —
Voting begins on:
2021-02-23
Part 3:
Voting terminates on:
Separation of overlapping thermal
2021-04-20
transitions
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 19935-3:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. ISO 2021
---------------------- Page: 1 ----------------------
ISO/FDIS 19935-3:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© 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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 19935-3:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 1

4.1 Temperature modulation, T(t)....................................................................................................................................................1

4.2 Heating rate ............................................................................................................................................................................................... 1

4.3 Heat flow rate, Φ(t) ............................................................................................................................................................................. 1

5 Principles ..................................................................................................................................................................................................................... 2

6 Apparatus and materials.............................................................................................................................................................................. 2

7 Calibration .................................................................................................................................................................................................................. 2

7.1 General ........................................................................................................................................................................................................... 2

7.2 Calibration procedure ....................................................................................................................................................................... 2

7.3 Calibration of modulation amplitude .................................................................................................................................. 2

7.4 Calibration of phase ............................................................................................................................................................................ 2

8 Procedure..................................................................................................................................................................................................................... 2

8.1 General ........................................................................................................................................................................................................... 2

8.2 Experimental conditions ................................................................................................................................................................ 2

8.3 Interpretation of results ................................................................................................................................................................. 2

8.4 Examples of the results — Separation of reversing and non-reversing heat flow rate ............ 2

9 Test report ................................................................................................................................................................................................................... 4

Annex A (informative) Modulated heat flow rate and heating rate of modulation ..............................................5

© ISO 2021 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/FDIS 19935-3:2021(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.
A list of all parts in the ISO 19935 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/FDIS 19935-3:2021(E)
Introduction

This document specifies a thermoanalytical test method which can be used for the separation of

overlapping thermal transitions in order to obtain comparable data for data sheets or databases as

well as for research purposes. It can also be a
...

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