10.20 Nov 3, 2026
ISO
ISO/TC 17
International Standard
This standard specified for the terms and definitions, principle, instrument and equipment, test
procedures and test reports of immersion expansion ratio for steel slag.
This standard is applicable to the determination of immersion expansion ratio for converter slag and
electric furnace slag. Determination range (percentage) is from 0.1% to 25%.
PROJECT
ISO/NP 25690.3
10.20
New project ballot initiated
Nov 3, 2026