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
International Standard
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ISO 7270-2:2024
Published (Edition 3, 2024)

ISO 7270-2:2024

ISO 7270-2:2024
CHF 63
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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

  •  : Published
     : 2024-05
    : International Standard published [60.60]
  •  : 3
     : 12
  • ISO/TC 45/SC 2
  • RSS updates

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