ISO 3146:2022
2022-03
Resumen
This document specifies two methods for evaluating the melting behaviour of semi-crystalline polymers.
a) 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 can also be useful for the evaluation of the softening of non-crystalline solids.
b) 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 might not be suitable for plastics compounds containing pigments and/or other additives which can interfere with the birefringence of the polymeric crystalline zone.
NOTE 2 Another method applicable to semi-crystalline polymers is described in ISO 11357‑3.
Informaciones generales
-
Estado: PublicadoFecha de publicación: 2022-03Etapa: Norma Internacional publicada [60.60]
-
Edición: 4Número de páginas: 9
-
Comité Técnico :ISO/TC 61/SC 5ICS :83.080.01
- RSS actualizaciones
Ciclo de vida
-
Anteriormente
RetiradaISO 3146:2000
-
Ahora