SS-EN-ISO-3146 Plastics - Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods (ISO 3146:2000)

SS-EN-ISO-3146 - EDITION 2 - CURRENT
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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 for the evaluation of the softening of non-crystalline solids. Method B: Polarizing microscope This method is based on changes in the optical properties of the polymer. It is applicable to polymers containing a birefringent crystalline phase. It may not be suitable for plastics compounds containing pigments and/or other additives which could interfere with the birefringence of the polymeric crystalline zone. NOTE 2 Another method applicable to semi-crystalline polymers is described in ISO 11357-3:1999, Plastics - Differential scanning calorimetry (DSC) - Part 3: Determination of temperature and enthalpy of melting and crystallization.

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Designation Name

SS-EN ISO 3146

Revision Level

EDITION 2

Status

Current

Publication Date

July 28, 2000

Language(s)

English

Page Count

13

International Equivalent

EN ISO 3146:2000 IDT* ISO 3146:2000 IDT