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<p>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.</p>
<p>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.</p>
<p>NOTE The procedures for % ENB content and % DCPD content differ only in the location in the infrared (IR) peak being quantified.</p>
Reģistrācijas numurs (WIID)
32312
Darbības sfēra
<p>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.</p>
<p>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.</p>
<p>NOTE The procedures for % ENB content and % DCPD content differ only in the location in the infrared (IR) peak being quantified.</p>
