ASTM D3900-17(2021)
Standard Test Methods for Rubber—Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry

Standard No.

ASTM D3900-17(2021)

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D3900-17(2021)

Scope

1.1 These test methods cover the determination of the proportion of ethylene and propylene units in ethylenepropylene copolymers (EPM) and ethylene-propylenediene terpolymers (EPDM) over the range from 35 to 85 mass % ethylene. Four test methods are needed to encompass the variety of commercial polymers that contain additives or polymerized diene units that interfere with the various infrared peaks. Except when interferences are present, all four test methods should give similar results. The test methods appear in the following order: 1.1.1 Pressed Film Test Methods: Sections Test Method A—For EPM and EPDM between 35 and 70 mass % ethylene 9 – 14 Test Method B—For EPM and EPDM between 60 and 85 mass % ethylene, except for ethylene/propylene/1,4hexadiene terpolymers 15 – 19 Test Method C—For all EPM and EPDM polymers between 35 and 85 mass % ethylene, using near infrared 20 – 24 1.1.2 Cast Film Test Methods: Test Method D—For all EPM and EPDM polymers between 35 and 85 mass % ethylene, except for ethylene/propylene/1,4hexadiene terpolymers 25 – 32 1.2 These test methods are not applicable to oil-extended EPDM unless the oil is first removed in accordance with Test Method D. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D3900-17(2021) Referenced Document

• ASTM D297 Standard Test Methods for Rubber Products-Chemical Analysis
• ASTM D3568 Standard Test Methods for Rubber8212;Evaluation of EPDM (Ethylene Propylene Diene Terpolymers) Including Mixtures With Oil
• ASTM D4483 Standard Practice for Determining Precision for Test Method Standards in the Rubber and Carbon Black Industries
• ASTM E168 Standard Practices for General Techniques of Infrared Quantitative Analysis

ASTM D3900-17(2021) history

• 2021 ASTM D3900-17(2021) Standard Test Methods for Rubber—Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
• 2017 ASTM D3900-17 Standard Test Methods for Rubber—Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
• 2015 ASTM D3900-15 Standard Test Methods for Rubber&x2014;Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
• 2005 ASTM D3900-05a(2010) Standard Test Methods for Rubber-Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
• 2005 ASTM D3900-05a Standard Test Methods for Rubber-Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
• 2005 ASTM D3900-05 Standard Test Methods for Rubber-Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
• 2004 ASTM D3900-95(2004)e1 Standard Test Methods for Rubber-Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
• 1995 ASTM D3900-95(2000) Standard Test Methods for Rubber Raw-Determination of Ethylene Units in EPM (Ethylene-Propylene Copolymers) and EPDM (Ethylene-Propylene-Diene Terpolymers)