ASTM-D6047 2009

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D6047-99(2009) Standard Test Methods for Rubber, Raw–Determination of 5-Ethylidenenorbornene (ENB) or Dicyclopentadiene (DCPD) in Ethylene-Propylene-Diene (EPDM) Terpolymers

Published By	Publication Date	Number of Pages
ASTM	2009	8

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Category: ASTM

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Description

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 1The 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.

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PDF Pages	PDF Title
1	Scope Referenced Documents Summary of Test Methods
2	Apparatus Test Specimen Preparation Spectral Acquisition
3	Calibration of the Spectrophotometer Diene Determination FIG. 1
4	FIG. 2
5	Report Precision and Bias for ENB FIG. 3
6	Precision and Bias for DCPD FIG. 4 TABLE 1
7	Keywords X1. DEVELOPMENTAL PROCEDURE FOR SPECTRAL SUBTRACTION OF WATER VAPOR X1.1 X1.2 X1.3 X1.4 X1.5 TABLE 2
8	X1.6 X1.7

Additional information

Standard Title	D6047-99(2009) Standard Test Methods for Rubber, Raw–Determination of 5-Ethylidenenorbornene (ENB) or Dicyclopentadiene (DCPD) in Ethylene-Propylene-Diene (EPDM) Terpolymers
Published Code	ASTM
Publication Date	2009
Pages Count	8

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ASTM-D6047 2009

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