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ASTM D 3900 : 2017 : R2021

Current
Current

The latest, up-to-date edition.

Standard Test Methods for Rubber—Determination of Ethylene Units in Ethylene-Propylene Copolymers (EPM) and in Ethylene-Propylene-Diene Terpolymers (EPDM) by Infrared Spectrometry
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

14-12-2021

1.1These test methods cover the determination of the proportion of ethylene and propylene units in ethylene-propylene 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:

1.1.1Pressed 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/1,4-hexadiene terpolymers

15 – 19

Test Method C—For all EPM and EPDM polymers between 35 and 85 mass % ethylene, using near infrared

20 – 24

1.1.2Cast Film Test Methods:

Test Method D—For all EPM and EPDM polymers between 35 and 85 mass % ethylene, except for ethylene/propylene/1,4-hexadiene terpolymers

25 – 32

1.2These test methods are not applicable to oil-extended EPDM unless the oil is first removed in accordance with Test Method D.

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

1.4This 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.

1.5This 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.

Committee
D 11
DocumentType
Test Method
Pages
11
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

ASTM D 3568 : 2003 : R2018 Standard Test Methods for Rubber—Evaluation of EPDM (Ethylene Propylene Diene Terpolymers) Including Mixtures With Oil
ASTM D 6047 : 2017 Standard Test Methods for Rubber, Raw—Determination of 5-Ethylidenenorbornene (ENB) or Dicyclopentadiene (DCPD) in Ethylene-Propylene-Diene (EPDM) Terpolymers

ASTM E 168 : 2016 : R2023 Standard Practices for General Techniques of Infrared Quantitative Analysis
ASTM D 3568 : 2003 : R2022 Standard Test Methods for Rubber—Evaluation of EPDM (Ethylene Propylene Diene Terpolymers) Including Mixtures With Oil
ASTM D 297 : 2015 : R2019 Standard Test Methods for Rubber Products—Chemical Analysis
ASTM D 3568 : 2003 : R2018 Standard Test Methods for Rubber—Evaluation of EPDM (Ethylene Propylene Diene Terpolymers) Including Mixtures With Oil
ASTM D 297 : 2021 Standard Test Methods for Rubber Products—Chemical Analysis
ASTM E 168 : 2016 Standard Practices for General Techniques of Infrared Quantitative Analysis

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