Standard Practice for Rubber—Identification by Pyrolysis-Gas Chromatography

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Hardcopy , PDF

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English

Published date

23-05-2017

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 09.01, 2017 Defines the identification of polymers in raw rubbers, and cured and uncured compounds, based on a single polymer, by the gas chromatographic patterns of their pyrolysis products (pyrograms).

1.1This practice covers the identification of polymers in raw rubbers, and cured and uncured compounds, based on a single polymer, by the gas chromatographic patterns of their pyrolysis products (pyrograms). Implementation of this guide presupposes a working knowledge of the principles and techniques of gas chromatography, sufficient to carry out this practice and to interpret the results correctly.2

1.2This practice will identify the following polymers:

1.2.1Polyisoprene of natural or synthetic origin,

1.2.2Butadiene-styrene copolymers,

1.2.3Polybutadiene,

1.2.4Polychloroprene,

1.2.5Butadiene-acrylonitrile copolymers,

1.2.6Ethylene-propylene copolymers and related terpolymers, and

1.2.7Isobutene-isoprene copolymers.

1.3This practice will not differentiate the following polymers:

1.3.1Natural polyisoprene from synthetic polyisoprene.

1.3.2Butadiene-styrene copolymers produced by solution and emulsion polymerization. It is sometimes possible to distinguish butadiene-styrene copolymers containing different amounts of styrene as well as random polymers from block polymers.

1.3.3Polybutadiene with different microstructures.

1.3.4Different types of polychloroprenes.

1.3.5Butadiene-acrylonitrile copolymers with different monomer ratios.

1.3.6Ethylene-propylene copolymers with different monomer ratios, as well as the copolymers from the related terpolymers.

1.3.7Isobutene-isoprene copolymers (butyl rubbers) from halogenated butyl rubbers.

1.3.8Polyisoprene containing different amounts of cis-trans isomers.

1.3.9The practice does not identify ebonite or hard rubbers.

1.4The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.5This 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.

1.6This 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	Standard Practice
Pages	5
ProductNote	Reconfirmed 2017
PublisherName	American Society for Testing and Materials
Status	Current
SupersededBy	ASTM D 3452 : 2006 : R2021
Supersedes	ASTM D 3452 : 2006 : R2012

ASTM D 297 : 2015 : R2019	Standard Test Methods for Rubber Products—Chemical Analysis
ASTM D 3677 : 2010 : R2019	Standard Test Methods for Rubber—Identification by Infrared Spectrophotometry
ASTM D 3677 : 2010 : R2015	Standard Test Methods for Rubber—Identification by Infrared Spectrophotometry
ASTM D 297 : 2015	Standard Test Methods for Rubber Products—Chemical Analysis

ASTM D 297 : 2015 : REDLINE	Standard Test Methods for Rubber Products—Chemical Analysis
ASTM E 260 : 1996	Standard Practice for Packed Column Gas Chromatography
ASTM E 355 : 1996 : R2021 : EDT 1	Standard Practice for Gas Chromatography Terms and Relationships
ASTM E 355 : 1996 : R2014	Standard Practice for Gas Chromatography Terms and Relationships

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ASTM D 3452 : 2006 : R2017

Standard Practice for Rubber—Identification by Pyrolysis-Gas Chromatography

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