ISO/CD 4504
u
ISO/CD 4504
88256

Status : Under development

Abstract

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.

General information

  •  : Under development
    : CD approved for registration as DIS [30.99]
  •  : 2
  • ISO/TC 61/SC 9
    83.080.20 
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