NF EN ISO 22007-3

NF EN ISO 22007-3

March 2012
Standard Current

Plastics - Determination of thermal conductivity and thermal diffusivity - Part 3 : temperature wave analysis method

ISO 22007-3:2008 specifies a temperature wave analysis method for the determination of the thermal diffusivity of thin films and plates of plastics in the through-thickness direction. The method can be used on plastics in either the solid or molten state, and having either an isotropic or an orthotropic structure.The method covers values of the thermal diffusivity, α, in the range 1,0 x 10-8 m2s-1 < α < 1,0 x 10-4 m2s-1.Measurements can be performed either in air or in another atmosphere, e.g. an inert gas, at atmospheric pressure or at other, reduced or elevated, pressures, or under a vacuum, at a variety of temperatures.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2012

Number of pages

25 p.

Reference

NF EN ISO 22007-3

ICS Codes

83.080.01   Plastics in general

Classification index

T51-227-3

Print number

1 - 19/03/2012

International kinship

ISO 22007-3:2008

European kinship

EN ISO 22007-3:2012
Sumary
Plastics - Determination of thermal conductivity and thermal diffusivity - Part 3 : temperature wave analysis method

ISO 22007-3:2008 specifies a temperature wave analysis method for the determination of the thermal diffusivity of thin films and plates of plastics in the through-thickness direction. The method can be used on plastics in either the solid or molten state, and having either an isotropic or an orthotropic structure.

The method covers values of the thermal diffusivity, α, in the range 1,0 x 10-8 m2s-1 < α < 1,0 x 10-4 m2s-1.

Measurements can be performed either in air or in another atmosphere, e.g. an inert gas, at atmospheric pressure or at other, reduced or elevated, pressures, or under a vacuum, at a variety of temperatures.

Table of contents
  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Symboles et unités
    2
  • 5 Principe
    2
  • 6 Appareillage
    2
  • 6.1 Généralités
    2
  • 6.2 Enceinte à température constante
    3
  • 6.3 Éléments chauffants et détecteurs
    3
  • 6.4 Circuit de chauffage
    5
  • 6.5 Circuit de mesure
    5
  • 6.6 Dispositif de mesure de décalage de phase
    5
  • 6.7 Dispositif de mesure de la température de l'éprouvette
    5
  • 7 Éprouvette
    6
  • 7.1 Dimensions
    6
  • 7.2 Épaisseur
    6
  • 7.3 Plaques de support
    6
  • 8 Mode opératoire
    7
  • 9 Analyse des résultats
    8
  • 10 Étalonnage et vérification de la méthode et des appareils
    9
  • 10.1 Étalonnage
    9
  • 10.2 Vérification
    9
  • 11 Fidélité et biais
    9
  • 11.1 Incertitude
    9
  • 11.2 Répétabilité
    9
  • 12 Résultats des essais
    10
  • Annexe A (informative) Contexte mathématique relatif à l'analyse de l'oscillation de la température
    11
  • Annexe B (informative) Données relatives à la diffusivité thermique type d'un polyimide type
    12
  • Annexe C (informative) Exemple de rapports fréquence-épaisseur requis pour des mesurages acceptables
    13
  • Annexe D (informative) Simulations numériques du décalage de phase, dhth, en fonction de kd et de x
    15
  • Annexe E (informative) Exemples d'incertitudes de mesure de la diffusivité thermique
    16
  • Bibliographie
    17
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