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ISO 4504:2023

Current Revision

Plastics - Polyethylene (PE) - Determination of co-monomer content by solution state 13C-NMR spectrometry

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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.


SDO ISO: International Organization for Standardization
Document Number ISO 4504
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 61/SC 9
Publish Date Document Id Type View
Not Available ISO 4504:2023 Revision