Résumé
This document specifies two methods for the determination of co-monomer contents of polyethylene products by solution state 13C-NMR spectrometry (nuclear magnetic resonance spectrometry):
— Method A: inverse gated decoupling method;
— Method B: insensitive nuclei enhanced by polarization transfer method.
This document is applicable to copolymers of ethylene having a content of other 1-olefinic monomers of less than a mass fraction of 50 %.
This document is not applicable to ethylene homopolymers or copolymers in which ethylene is polymerized with two or more type 1-olefin comonomers.
Informations générales
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État actuel: PubliéeDate de publication: 2025-05Stade: Norme internationale publiée [60.60]
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Edition: 2
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Comité technique :ISO/TC 61/SC 9ICS :83.080.20
- RSS mises à jour
Cycle de vie
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Précédemment
AnnuléeISO 4504:2023
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Actuellement
