ISO 2453:2020
Current
The latest, up-to-date edition.
Rubber, raw styrene-butadiene, emulsion-polymerized Determination of bound styrene content Refractive index method
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05-05-2020
This document specifies a method for determining the bound styrene content of emulsion-polymerized styrene-butadiene rubbers (SBR) by correlation with the measured refractive index of an extracted sample according to a table of refractive indices versus percentage mass fractions styrene.
The method is also applicable to extracted oil-extended emulsion-polymerized SBR as long as it produces a film suitable for refractive index measurements. It is not applicable to solution-polymerized SBR.
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