EN ISO 22007-2:2022
(Main)Plastics - Determination of thermal conductivity and thermal diffusivity - Part 2: Transient plane heat source (hot disc) method (ISO 22007-2:2022)
Plastics - Determination of thermal conductivity and thermal diffusivity - Part 2: Transient plane heat source (hot disc) method (ISO 22007-2:2022)
This document specifies a method for the determination of the thermal conductivity and thermal diffusivity, and hence the specific heat capacity per unit volume of plastics. The experimental arrangement can be designed to match different specimen sizes. Measurements can be made in gaseous and vacuum environments at a range of temperatures and pressures.
This method gives guidelines for testing homogeneous and isotropic materials, as well as anisotropic materials with a uniaxial structure. The homogeneity of the material extends throughout the specimen and no thermal barriers (except those next to the probe) are present within a range defined by the probing depth(s) (see 3.1).
The method is suitable for materials having values of thermal conductivity, λ, in the approximate range 0,010 W∙m−1∙K−1 < λ < 500 W∙m−1∙K−1, values of thermal diffusivity, α, in the range 5 × 10−8 m2∙s−1 < α < 10−4 m2∙s−1, and for temperatures, T, in the approximate range 50 K < T < 1 000 K.
NOTE 1 The specific heat capacity per unit volume, C, C = ρ ∙ cp, where ρ is the density and cp is the specific heat per unit mass and at constant pressure, can be obtained by dividing the thermal conductivity, λ, by the thermal diffusivity, α, i.e. C = λ/α, and is in the approximate range 0,005 MJ∙m−3∙K−1 < C < 5 MJ∙m−3∙K−1. It is also referred to as the volumetric heat capacity.
NOTE 2 If the intention is to determine the thermal resistance or the apparent thermal conductivity in the through-thickness direction of an inhomogeneous product (for instance a fabricated panel) or an inhomogeneous slab of a material, reference is made to ISO 8301, ISO 8302 and ISO 472.
The thermal-transport properties of liquids can also be determined, provided care is taken to minimize thermal convection.
Kunststoffe - Bestimmung der Wärmeleitfähigkeit und der Temperaturleitfähigkeit - Teil 2: Transientes ebenes Wärmequellenverfahren (Hot‑Disc‑Verfahren) (ISO 22007‑2:2022)
Dieses Dokument legt ein Verfahren zur Bestimmung der Wärmeleitfähigkeit und Temperaturleitfähigkeit und somit der spezifischen Wärmekapazität je Volumeneinheit von Kunststoffen fest. Die experimentelle Anordnung kann so ausgeführt werden, dass Messungen an Probekörpern verschiedener Größe möglich sind. Die Messungen können in gasförmigen Umgebungen und unter Vakuum bei verschiedenen Temperaturen und verschiedenem Druck durchgeführt werden.
Dieses Verfahren liefert Leitlinien für die Prüfung von homogenen und isotropen Werkstoffen sowie von anisotropen Werkstoffen mit einer einachsigen Struktur. Die Homogenität des Werkstoffs erstreckt sich über den gesamten Probekörper, und innerhalb des durch die Messtiefe(n) (siehe 3.1) festgelegten Bereichs liegen keine Wärmebarrieren vor (außer in der Nähe der Sonde).
Das Verfahren ist für Werkstoffe geeignet, die Wärmeleitfähigkeitswerte λ im annähernden Bereich 0,010 W∙m−1∙K−1 < λ < 500 W∙m−1∙K−1, Temperaturleitfähigkeitswerte α im Bereich 5 × 10−8 m2∙s−1 < α < 10−4 m2∙s−1 aufweisen, sowie für Temperaturen T im annähernden Bereich 50 K < T < 1 000 K.
ANMERKUNG 1 Die spezifische Wärmekapazität je Volumeneinheit C, C = ρ ∙ cp, wobei ρ die Dichte und cp die spezifische Wärme je Masseeinheit und bei konstantem Druck ist, kann erhalten werden, indem die Wärmeleitfähigkeit λ durch die Temperaturleitfähigkeit α dividiert wird, d. h. C = λ/α, und liegt im annähernden Bereich von 0,005 MJ∙m−3∙K−1 < C < 5 MJ∙m−3∙K−1. Diese wird auch als volumetrische Wärmekapazität bezeichnet.
ANMERKUNG 2 Wenn die Absicht besteht, den Wärmewiderstand oder die scheinbare Wärmeleitfähigkeit in Dickenrichtung eines inhomogenen Produktes (zum Beispiel einer gefertigten Tafel) oder einer Platte aus einem inhomogenen Werkstoff zu bestimmen, wird auf ISO 8301, ISO 8302 und ISO 472 hingewiesen.
Die Wärmetransporteigenschaften von Flüssigkeiten können ebenfalls bestimmt werden, vorausgesetzt, dass die Wärmekonvektion auf ein Mindestmaß reduziert wird.
Plastiques - Détermination de la conductivité thermique et de la diffusivité thermique - Partie 2: Méthode de la source plane transitoire (disque chaud) (ISO 22007-2:2022)
Le présent document spécifie une méthode pour déterminer la conductivité thermique et la diffusivité thermique, et de ce fait la capacité calorifique spécifique par unité de volume, des plastiques. Le dispositif expérimental peut être conçu pour s’accorder à différentes tailles d’éprouvette. Les mesurages peuvent être effectués dans des environnements gazeux et sous vide sur une plage de températures et de pressions.
Cette méthode donne des lignes directrices pour les essais de solides homogènes, isotropes et anisotropes, ayant une structure uniaxiale. L’homogénéité du matériau s’étend au travers de l’éprouvette et aucune barrière thermique (excepté celle à côté de la sonde) n’est présente dans une plage définie par la(les) profondeur(s) de vérification (voir 3.1).
Cette méthode est appropriée pour les matériaux ayant des valeurs de conductivité thermique, λ, comprises approximativement dans la plage 0,010 W∙m−1∙K−1 < λ < 500 W∙m−1∙K−1, des valeurs de diffusivité thermique, α, comprises dans la plage 5 × 10−8 m2∙s−1 < α < 10−4 m2∙s−1 et des températures, T, comprises approximativement dans la plage 50 K < T < 1 000 K.
NOTE 1 La capacité calorifique spécifique par unité de volume, C (C = ρ ∙ cp, où ρ est la masse volumique et cp est la chaleur massique par unité de masse et à pression constante), peut être obtenue en divisant la conductivité thermique, λ, par la diffusivité thermique, α, c’est-à-dire C = λ/α, et se situe approximativement dans la plage 0,005 MJ∙m−3∙K−1 < C < 5 MJ∙m−3∙K−1. Elle est également appelée chaleur volumique.
NOTE 2 Si l’objectif est de déterminer la résistance thermique ou la conductivité thermique apparente dans la direction de l’épaisseur d’un produit non homogène (par exemple un panneau fabriqué) ou d’une plaque non homogène de matière, on se réfère à l’ISO 8301, l’ISO 8302 et l’ISO 472.
Les propriétés de transmission thermique des liquides peuvent être déterminées à condition que des précautions soient prises pour minimiser la convection thermique.
Polimerni materiali - Ugotavljanje toplotne prevodnosti in toplotne razprševalnosti - 2. del: Metoda s tranzientnim ploskovnim toplotnim virom (vroči disk) (ISO 22007-2:2022)
Ta dokument določa metodo za ugotavljanje toplotne prevodnosti in toplotne razprševalnosti ter posledično posebno toplotno kapaciteto polimernih materialov na enoto prostornine. Eksperimentalna ureditev je lahko oblikovana tako, da ustreza različnim velikostim vzorca. Meritve je mogoče opravljati v plinskem in vakuumskem okolju pri različni temperaturi oziroma tlaku. Ta metoda podaja smernice za preskušanje homogenih in izotropnih materialov ter anizotropnih materialov z enoosno strukturo. Homogenost materiala se razteza po celotnem vzorcu in ni prisotnih toplotnih pregrad (razen poleg sonde) v območju, opredeljenem z globino sondiranja (glej 3.1). Metoda je primerna za materiale z vrednostmi toplotne prevodnosti (λ) v približnem območju 0,010 W∙m−1∙K−1 < λ < 500 W∙m−1∙K−1, vrednostmi toplotne razprševalnosti (α) v območju 5 × 10−8 m2∙s−1 < α < 10−4 m2∙s−1 in temperatur (T) v približnem območju 50 K < T < 1000 K. OPOMBA 1: Specifična toplotna kapaciteta na enoto prostornine (C) C = ρ ∙ cp, pri čemer je ρ gostota in cp specifična toplota na enoto mase pri konstantnem tlaku, je mogoče pridobiti z deljenjem toplotne prevodnosti (λ) s toplotno razprševalnostjo (α), torej C = λ/α, in je v približnem obsegu 0,005 MJ∙m−3∙K−1 < C < 5 MJ∙m−3∙K−1. Za to se uporablja tudi izraz prostorninska toplotna kapaciteta. OPOMBA 2: Če je namen ugotavljanje toplotne upornosti ali dejanske toplotne prevodnosti nehomogenega izdelka v smeri skozi debelino (na primer izdelane plošče) ali nehomogene plošče iz enega materiala, je treba upoštevati standarde ISO 8301, ISO 8302 in ISO 472. Ugotoviti je mogoče tudi lastnosti toplotnega prenosa za tekočine, vendar je treba posebej paziti na zmanjšanje toplotne konvekcije.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN ISO 22007-2:2015
Polimerni materiali - Ugotavljanje toplotne prevodnosti in toplotne razprševalnosti
- 2. del: Metoda s tranzientnim ploskovnim toplotnim virom (vroči disk) (ISO 22007-
2:2022)
Plastics - Determination of thermal conductivity and thermal diffusivity - Part 2: Transient
plane heat source (hot disc) method (ISO 22007-2:2022)
Kunststoffe - Bestimmung der Wärmeleitfähigkeit und der Temperaturleitfähigkeit - Teil 2:
Transientes ebenes Wärmequellenverfahren (Hot‑Disc‑Verfahren) (ISO
22007‑2:2022)
Plastiques - Détermination de la conductivité thermique et de la diffusivité thermique -
Partie 2: Méthode de la source plane transitoire (disque chaud) (ISO 22007-2:2022)
Ta slovenski standard je istoveten z: EN ISO 22007-2:2022
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 22007-2
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 83.080.01 Supersedes EN ISO 22007-2:2015
English Version
Plastics - Determination of thermal conductivity and
thermal diffusivity - Part 2: Transient plane heat source
(hot disc) method (ISO 22007-2:2022)
Plastiques - Détermination de la conductivité Kunststoffe - Bestimmung der Wärmeleitfähigkeit und
thermique et de la diffusivité thermique - Partie 2: der Temperaturleitfähigkeit - Teil 2: Transientes
Méthode de la source plane transitoire (disque chaud) ebenes Wärmequellenverfahren (Hot-Disc-Verfahren)
(ISO 22007-2:2022) (ISO 22007-2:2022)
This European Standard was approved by CEN on 7 June 2022.
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
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© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22007-2:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 22007-2:2022) 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 December 2022, and conflicting national standards
shall be withdrawn at the latest by December 2022.
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.
This document supersedes EN ISO 22007-2:2015.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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 22007-2:2022 has been approved by CEN as EN ISO 22007-2:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 22007-2
Third edition
2022-06
Plastics — Determination of thermal
conductivity and thermal diffusivity —
Part 2:
Transient plane heat source (hot disc)
method
Plastiques — Détermination de la conductivité thermique et de la
diffusivité thermique —
Partie 2: Méthode de la source plane transitoire (disque chaud)
Reference number
ISO 22007-2:2022(E)
ISO 22007-2:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii
ISO 22007-2:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 3
6 Test specimens . 5
6.1 Bulk specimens . 5
6.2 Anisotropic bulk specimens . 6
6.3 Slab specimens . 6
6.4 Thin-film specimens . 7
7 Procedure .7
8 Calculation of thermal properties . 9
8.1 Bulk specimens . 9
8.2 Anisotropic bulk specimens . 12
8.3 Slab specimens . 13
8.4 Thin-film specimens . 14
8.5 Low thermally conducting specimens . 15
8.5.1 Introductory remarks .15
8.5.2 Low thermally conducting bulk specimens . 15
8.5.3 Low thermally conducting anisotropic bulk specimens . 17
8.5.4 Low thermally conducting thin–film specimen . 17
9 Calibration and verification . .17
9.1 Calibration of apparatus . 17
9.2 Verification of apparatus . 18
10 Precision and bias .18
11 Test report .19
Bibliography .20
iii
ISO 22007-2:2022(E)
Foreword
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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).
This third edition cancels and replaces the second edition (ISO 22007-2:201
...
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