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ASTM D6047-99(2009)

Historical Reaffirmation

Standard Test Methods for Rubber, Raw—Determination of 5-Ethylidenenorbornene (ENB) or Dicyclopentadiene (DCPD) in Ethylene-Propylene-Diene (EPDM) Terpolymers

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1.1 These test methods cover the determination of the content of 5-ethylidenenorbornene (ENB) or Dicyclopentadiene (DCPD) in ethylene-propylene-diene (EPDM) terpolymers. They are applicable to diene contents in the 0.1 to 10 mass % range.

1.2 ENB and DCPD are dienes introduced in ethylene/propylene rubbers to generate specific cure properties. Since high precision for diene content determination has become very important, a Fourier Transform Infrared Spectroscopic (FTIR) method was developed. Diene determination was performed in the past by a refractive index technique.

Note 1—The procedures for % ENB and % DCPD differ only in the location in the infrared (IR) of the IR peak being quantified.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

These test methods cover the determination of the content of 5-ethylidenenorbornene (ENB) or dicyclopentadiene (DCPD) in ethylene-propylene-diene (EPDM) terpolymers. They are applicable to diene contents in the 0.1 to 10 mass % range. The different apparatus used for testing are presented in details. The methods for the preparation of the test specimen are presented in details. The precision and bias for ENB shall be prepared to meet the requirements prescribed. The precision and bias for DCPD shall be prepared to meet the requirements prescribed.


SDO ASTM: ASTM International
Document Number D6047
Publication Date Jan. 1, 2009
Language en - English
Page Count 8
Revision Level 99(2009)
Supercedes
Committee D11.11
Publish Date Document Id Type View
Oct. 1, 2017 D6047-17 Revision
Nov. 1, 2015 D6047-15 Revision
Sept. 28, 1999 D6047-99E01 Revision
Nov. 1, 2021 D6047-17R21 Reaffirmation
Aug. 1, 2014 D6047-99R14 Reaffirmation
Jan. 1, 2009 D6047-99R09 Reaffirmation
Nov. 1, 2003 D6047-99R03 Reaffirmation