ISO 7270-2:2024

Published (Edition 3, 2024)

ISO 7270-2:2024

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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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