BS ISO 16565:2013

This standard BS ISO 16565:2013 Rubber. Determination of 5-ethylidenenorbornene (ENB) or dicyclopentadiene (DCPD) in ethylenepropylene-diene (EPDM) terpolymers is classified in these ICS categories:

• 83.060 Rubber

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 10 % 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 the mass fraction of ENB and the mass fraction of DCPD differ only in the location in the infrared (IR) of the peak being quantified.