20.99 Feb 25, 2026
ISO
ISO/TC 156
International Standard
PUBLISHED
ISO 3651-1:1998
PROJECT
ISO/WD 3651-1
20.99
WD approved for registration as CD
Feb 25, 2026
Determination of resistance to intergranular corrosion of stainless steels — Part 1: Austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in nitric acid medium by measurement of loss in mass (Huey test)
10.99 New project approved