60.60 Standard published May 24, 2024
ISO
ISO/TC 45/SC 2 Testing and analysis
International Standard
83.060 Rubber
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.
WITHDRAWN
ISO 7270-2:2012
PUBLISHED
ISO 7270-2:2024
60.60
Standard published
May 24, 2024