ISO 4504:2023
p
ISO 4504:2023
80039
недоступно на русском языке

Тезис

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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.


Общая информация 

  •  : Опубликовано
     : 2023-06
  •  : 1
  •  : ISO/TC 61/SC 9 Thermoplastic materials
  •  :
    83.080.20 Thermoplastic materials

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