International Standard
ISO 7270-2:2024
Rubber — Analysis by pyrolytic gas-chromatographic methods — Part 2: Determination of styrene/butadiene/isoprene ratio
Reference number
ISO 7270-2:2024
Edition 3
2024-05
© ISO 2024
International Standard
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Published (Edition 3, 2024)

ISO 7270-2:2024

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Language
CHF 63
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Abstract

This document specifies a pyrolytic gas-chromatographic method for the determination of the styrene/butadiene/isoprene ratio in copolymers, or blends of homopolymers and/or copolymers, in raw rubbers or in unvulcanized or vulcanized compounds. It is applicable to copolymers/terpolymers consisting of styrene, butadiene and isoprene, and blends of these polymers.

NOTE 1        The use of this document pre-supposes sufficient working knowledge of the principles and techniques of gas chromatography for the analyst to perform the operations described and interpret the results correctly.

NOTE 2        The styrene/butadiene/isoprene ratio determined by this test method is affected by the presence of resin and by a high level of sulfur.

General information

  • Status
     : Published
    Publication date
     : 2024-05
    Stage
    : International Standard published [60.60]
  • Edition
     : 3
    Number of pages
     : 12
  • Technical Committee :
    ISO/TC 45/SC 2
    ICS :
    83.060 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

12
Responsible Consumption and Production
9
Industry, Innovation and Infrastructure

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