Plastics. Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods Ingestion-build-117251 International Standards that specify requirements

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Plastics. Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods Ingestion-build-117251 International Standards that specify requirements1 Scope This International Standard specifies two methods for evaluating the melting behaviour of semi crystalline polymers. Melting temperatures determined by the different methods usually differ by several kelvins for the reasons explained in the introduction. Method A: Capillary tube This method is based on the changes in shape of the polymer. It is applicable to all semi crystalline polymers and their compounds. NOTE 1 Method A may also be useful