NF EN ISO 11358-1
Plastics - Thermogravimetry (TG) of polymers - Part 1 : general principles
ISO 11358-1:2014 specifies general conditions for the analysis of polymers using thermogravimetric techniques. It is applicable to liquids or solids. Solid materials may be in the form of pellets, granules or powders. Fabricated shapes reduced to appropriate specimen size may also be analysed by this method.
ISO 11358-1:2014 specifies general conditions for the analysis of polymers using thermogravimetric techniques. It is applicable to liquids or solids. Solid materials may be in the form of pellets, granules or powders. Fabricated shapes reduced to appropriate specimen size may also be analysed by this method.
1.1 La présente Norme internationale prescrit les conditions générales d'analyse des polymères au moyen des techniques de thermogravimétrie. 1.2 Elles est applicable aux corps liquides et aux solides, ces derniers se présentant sous forme de granulés, de grains ou de poudre. Cette méthode d'analyse est également applicable aux objets façonnés sur lesquels on prélève une éprouvette de dimensions appropriées. 1.3 La thermogravimétrie peut être utilisée pour déterminer la température initiale et la vitesse de décomposition des polymères et pour mesurer simultanément les quantités de substances volatiles, d'additifs et/ou de charges qu'ils contiennent. 1.4 Les mesurages thermogravimétriques peuvent être réalisés selon un mode dynamique (variation de masse en fonction de la température ou du temps, dans des conditions prédéfinies) ou un mode isotherme (variation de masse en fonction du temps, à température constante).
This document specifies general conditions for the analysis of polymers using thermogravimetric techniques. It is applicable to liquids or solids. Solid materials can be in the form of pellets, granules or powders. Fabricated shapes reduced to appropriate specimen size can also be analysed by this method. This document establishes methods for the investigation of physical effects and chemical reactions that are associated with changes of mass. This document can be used to determine the temperature(s) and rate(s) of decomposition of polymers, and to measure at the same time the amounts of volatile matter, additives and/or fillers they contain. This document is applicable to measurements in dynamic mode (mass change versus temperature or time under programmed temperature conditions) or isothermal mode (mass change versus time at constant temperature). This document is applicable to measurements at different testing atmospheres, such as separation of decomposition in an inert atmosphere from oxidative degradation.
- Avant-proposiv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions1
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4 Principe2
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5 Appareillage2
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6 Préparation des éprouvettes3
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7 Étalonnage3
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8 Mode opératoire4
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9 Expression des résultats5
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10 Rapport d'essai9
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