30.99 Aug 7, 2026
ISO
ISO/TC 47
International Standard
This document specifies the test methods of industrial dimethyl sulfoxide such as appearance, purity, water, acid value, crystallizing point, transmittance, refractive index, colour, density and metal ion content.
PROJECT
ISO/CD 25803-1.2
30.99
CD approved for registration as DIS
Aug 7, 2026