This International Standard specifies the methods to be used to determine the content of 5-ethylidenenorbornene (ENB) or dicyclopentadiene (DCPD) in ethylene-propylene-diene (EPDM) terpolymers in the 0,1 % to 15 % range.

ENB and DCPD are dienes introduced into ethylene-propylene rubbers to generate specific cure properties. Since high precision for diene content determination is important, a Fourier transform infrared spectroscopic (FT-IR) method is utilized.

NOTE The procedures for % ENB content and % DCPD content differ only in the location in the infrared (IR) peak being quantified.

General information

  • Status :  Withdrawn
    Publication date : 2002-03
  • Edition : 1
    Number of pages : 13
  • :
    ISO/TC 45/SC 2
    Testing and analysis
  • 83.060

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