60.60 Standard published Oct 23, 2025
ISO
ISO/TC 27/SC 5 Methods of analysis
International Standard
73.040 Coals
Published
This document establishes a classification of brown coals and lignites by types on the basis of total moisture mass fraction and tar yield.
WITHDRAWN
ISO 2950:1974
PUBLISHED
ISO 2950:2025
60.60
Standard published
Oct 23, 2025