ISO 4504:2023
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ISO 4504:2023
80039

Status : Published (To be revised)

This standard will be replaced by ISO/CD 4504
en
Format Language
std 1 129 PDF + ePub
std 2 129 Paper
  • CHF129
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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.

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General information

  •  : Published
     : 2023-06
    : International Standard to be revised [90.92]
  •  : 1
     : 25
  • ISO/TC 61/SC 9
    83.080.20 
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