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EVS-EN ISO 3146:2022

Plastics - Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods (ISO 3146:2022)

Üldinfo
Kehtiv alates 18.04.2022
Alusdokumendid
EN ISO 3146:2022; ISO 3146:2022
Tegevusala (ICS grupid)
83.080.01 Plastid üldiselt
Direktiivid või määrused
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
18.04.2022
Põhitekst
01.12.2000
Põhitekst
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.
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Põhitekst

EVS-EN ISO 3146:2000

Plastid. Sulamisomaduste määramine (sulamistemperatuur või sulamise temperatuuriintervall) poolkristallilistel polümeeridel
Kehtetu alates 18.04.2022