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ISO/CD 7781-2

Styrene-butadiene rubber, raw - Soap and organic-acid content — Part 2: Qualitative analysis

General information

30.60     May 25, 2025

ISO

ISO/TC 45/SC 3

International Standard

Scope

This document specifies a method for the qualitative analysis of the organic acids in raw emulsionpolymerization styrene-butadiene rubber (E-SBR) using a gas chromatograph combined with mass spectrometer (GC-MS).
It is applicable to the identification of fatty acids and rosin acids (including disproportionated rosin acids).
The determination of the soap and organic-acid content of raw styrene-butadiene rubber (SBR) is specified in ISO 7781:2017.

Life cycle

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ISO/CD 7781-2
30.60 Close of voting/ comment period
May 25, 2025