ASTM International - ASTM D3452-06(2012)
Standard Practice for Rubber—Identification by Pyrolysis-Gas Chromatography
Organization: | ASTM International |
Publication Date: | 1 August 2012 |
Status: | inactive |
Page Count: | 4 |
ICS Code (Rubber): | 83.060 |
significance And Use:
3.1 For research, development, and quality control purposes, it is advantageous to determine the composition of rubbers in cured, compounded products.
3.2 This practice provides such... View More
scope:
1.1 This 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
1.2 This practice will identify the following polymers:
1.2.1 Polyisoprene of natural or synthetic origin,
1.2.2 Butadiene-styr
1.2.3 Polybutadiene,
1.2.4 Polychloropren
1.2.5 Butadiene-acry
1.2.6 Ethylene-propy
1.2.7 Isobutene-isop
1.3 This practice will not differentiate the following polymers:
1.3.1 Natural polyisoprene from synthetic polyisoprene.
1.3.2 Butadiene-styr
1.3.3 Polybutadiene with different microstructures.
1.3.4 Different types of polychloroprenes.
1.3.5 Butadiene-acry
1.3.6 Ethylene-propy
1.3.7 Isobutene-isop
1.3.8 Polyisoprene containing different amounts of cis-trans isomers.
1.3.9 The practice does not identify ebonite or hard rubbers.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.5 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.