NF EN ISO 3146

November 2000

Standard Cancelled

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

La présente Norme internationale spécifie deux méthodes d'évaluation du comportement à la fusion des polymères semi-cristallins. Pour les raisons exposées en introduction, les températures de fusion peuvent différer de quelques kelvins selon la méthode employée.

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Main informations

Collections

National standards and national normative documents

Publication date

November 2000

Number of pages

14 p.

Reference

NF EN ISO 3146

ICS Codes

83.080.01 Plastics in general

Classification index

T51-621

Print number

1 - 17/06/2004

International kinship

ISO 3146:2000

European kinship

EN ISO 3146:2000

Sumary

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

Replaced standards (1)

NF EN ISO 3146

March 1997

Standard Cancelled

Plastics. Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers.

Ce document spécifie une méthode de détermination de la température de fusion des polymères semi-cristallins par observation sous microscope polarisant, entre polariseur et analyseur croisé, du polymère chauffé selon une loi déterminée.

Standard replaced by (1)

NF EN ISO 3146

March 2022

Standard Current

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

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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