BS ISO 7270-2:2012
Rubber. Analysis by pyrolytic gas-chromatographic methods - Determination of styrene/butadiene/isoprene ratio
Rubber. Analysis by pyrolytic gas-chromatographic methods - Determination of styrene/butadiene/isoprene ratio
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Дата публикации:
- 31 октября 2012 г.
- ICS:
- 83.060
- SKU:
- BS ISO 7270-2:2012
Abstract
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](/search?q=ISO%C2%A07270) 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.
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