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ASTM D 3452 : 2006 : R2012

ASTM D 3452 : 2006 : R2012

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practice for Rubber—Identification by Pyrolysis-Gas Chromatography

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

08-01-2012

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.

Committee
D 11
DocumentType
Standard Practice
Pages
4
ProductNote
Reconfirmed 2012
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

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

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