Reference number
ISO 4504:2023
© ISO 2025
ISO 4504:2023
Plastics — Polyethylene (PE) — Determination of co-monomer content by solution state 13C-NMR spectrometry
Edition 1
2023-06
Retirada
Retirada (Edición 1, 2023)

Resumen

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.

Informaciones generales

  • Estado
     : Retirada
    Fecha de publicación
     : 2023-06
    Etapa
    : Retirada de la Norma Internacional [95.99]
  • Edición
     : 1
    Número de páginas
     : 25
  • Comité Técnico :
    ISO/TC 61/SC 9
    ICS :
    83.080.20 
  • RSS actualizaciones

Ciclo de vida

Objetivos de Desarrollo Sostenible

Esta norma contribuye a los siguientes Objetivos de Desarrollo Sostenible

3
Good Health and Well-being
7
Affordable and Clean Energy
8
Decent Work and Economic Growth
9
Industry, Innovation and Infrastructure
11
Sustainable Cities and Communities
12
Responsible Consumption and Production

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  4. TC
  5. ISO/TC 61/SC 9
  6. ISO 4504:2023