prEN ISO 19628

SLOVENSKI STANDARD
01-junij-2024
Fina keramika (sodobna keramika, sodobna tehnična keramika) - Termofizikalne
lastnosti keramičnih kompozitov - Ugotavljanje specifične toplotne kapacitete
(ISO/DIS 19628:2024)
Fine ceramics (advanced ceramics, advanced technical ceramics) - Thermophysical
properties of ceramic composites - Determination of specific heat capacity (ISO/DIS
19628:2024)
Hochleistungskeramik - Thermophysikalische Eigenschaften von keramischen
Verbundwerkstoffen - Bestimmung der spezifischen Wärmekapazität (ISO/DIS
19628:2024)
Céramiques techniques - Propriétés thermophysiques des composites céramiques -
Détermination de la capacité thermique massique (ISO/DIS 19628:2024)
Ta slovenski standard je istoveten z: prEN ISO 19628
ICS:
81.060.30 Sodobna keramika Advanced ceramics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 19628
ISO/TC 206
Fine ceramics (advanced
Secretariat: JISC
ceramics, advanced technical
Voting begins on:
ceramics) — Thermophysical
2024-03-28
properties of ceramic composites
Voting terminates on:
— Determination of specific heat
2024-06-20
capacity
Céramiques techniques — Propriétés thermophysiques des
composites céramiques — Détermination de la capacité
thermique massique
ICS: 81.060.30
THIS DOCUMENT IS A DRAFT CIRCULATED
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Reference number
ISO/DIS 19628:2024(en)
DRAFT
ISO/DIS 19628:2024(en)
International
Standard
ISO/DIS 19628
ISO/TC 206
Fine ceramics (advanced
Secretariat: JISC
ceramics, advanced technical
Voting begins on:
ceramics) — Thermophysical
properties of ceramic composites
Voting terminates on:
— Determination of specific heat
capacity
Céramiques techniques — Propriétés thermophysiques des
composites céramiques — Détermination de la capacité
thermique massique
ICS: 81.060.30
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
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Published in Switzerland Reference number
ISO/DIS 19628:2024(en)
ii
ISO/DIS 19628:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Method A – drop calorimetry . 2
4.1 Principle .2
4.2 Apparatus .2
4.3 Standard reference materials .3
4.4 Containers .3
4.5 Test specimens.3
4.6 Calibration of the calorimeter . .3
4.6.1 General .3
4.6.2 Electrical calibration .3
4.6.3 Calibration using standard reference material .4
4.7 Test procedures .4
4.7.1 General .4
4.7.2 Test without a container .4
4.7.3 Test with a container .5
4.7.4 Description of test .5
4.8 Calculations .6
4.8.1 General .6
4.8.2 Determination of the calorimetric calibration factor .6
4.8.3 Determination of mean specific heat capacity C .6
p
4.8.4 Determination of the specific heat capacity C .7
p
5 Method B – differential scanning calorimetry . 7
5.1 Principle .7
5.1.1 General .7
5.1.2 Stepwise heating method .8
5.1.3 Continuous heating method .8
5.2 Apparatus .9
5.3 Standard reference materials, SRM .9
5.4 Test specimens.9
5.5 Temperature calibration .9
5.6 Test procedure for the determination of C .9
p
5.6.1 General .9
5.6.2 Method 1: Measurements requiring the knowledge of the K factor .10
5.6.3 Method 2: measurements requiring the use of a reference standard material
(SRM) . 12
5.7 Calculation of results . 15
5.7.1 Method requiring the knowledge of the K factor . 15
5.7.2 Method using an SRM.17
6 Test report .18
Annex A (normative) Drop calorimetry – determination of the calibration factor using standard
reference material . 19
Annex B (informative) Standard reference material .21
Annex C (informative) Materials for calorimeter calibrations .26
Bibliography .27

iii
ISO/DIS 19628:2024(en)
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 doc
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