ISO 7270-2:2024

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Publicado (Edición 3, 2024)

ISO 7270-2:2024

CHF 63

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Resumen

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.

Informaciones generales

Estado
: Publicado

Fecha de publicación
: 2024-05

Etapa
: Norma Internacional publicada [60.60]
Edición
: 3

Número de páginas
: 12
Comité Técnico :
ISO/TC 45/SC 2

ICS :
83.060
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