ISO-4504 › 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.
To find similar documents by classification:
83.080.20 (Thermoplastic materials)
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Document Number
ISO 4504:2023
Revision Level
1ST EDITION
Status
Current
Publication Date
June 1, 2023
Committee Number
ISO/TC 61/SC 9