ISO 19242:2021 PDF

Scope: This document specifies a method for the determination of the total sulfur content of raw rubber and unvulcanized or vulcanized rubber compounds by ion chromatography following the preparation of a sample solution using either a tubular furnace combustion or an oxygen combustion flask method. The tubular furnace combustion method is applicable for rubbers with sulfur content less than 0,1 % as it is possible that the oxygen combustion flask method will not give sufficiently accurate results. The oxygen combustion flask method is not applicable to rubbers containing a metal salt that forms an insoluble metal sulfate, such as barium sulfate (CAS 7727-43-7).

ISO 19242:2021 Referenced Document

ISO 1795 Rubber, raw natural and raw synthetic - Sampling and further preparative procedures
ISO 3696 Water for analytical laboratory use; Specification and test methods
ISO 4661-2 Rubber, vulcanized - Preparation of samples and test pieces - Part 2: Chemical tests

2021 ISO 19242:2021 Rubber - Determination of total sulfur content by ion chromatography
2015 ISO 19242:2015 Rubber - Determination of total sulfur content by ion chromatography