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ISO/DIS 7781-2

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

General information

40.20     Jul 6, 2026

ISO

ISO/TC 45/SC 3

International Standard

83.040.10  

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

NOW

IN_DEVELOPMENT
ISO/DIS 7781-2
40.20 DIS ballot initiated: 12 weeks
Jul 6, 2026

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