BS ISO 7270-2:2012

Rubber. Analysis by pyrolytic gas-chromatographic methods - Determination of styrene/butadiene/isoprene ratio

Published:

31 Oct 2012

•

Withdrawn:

29 May 2024

1 Scope

This part of ISO 7270 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 part of ISO 7270 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.

Product Details

Descriptors

Pyrolytic analysis

Chemical analysis and testing

Isoprene

Styrene

Butadiene

Copolymers

Determination of content

Polymers

Rubber

Gas chromatography

ICS Codes

83.060 Rubber

Committee

PRI/22

International relationships

Identical to:

ISO 7270-2:2012

ISBN

978 0 580 65977 5

Publisher

BSI