20.20 Jul 24, 2026
ISO
ISO/TC 22/SC 34
International Standard
This document specifies test methods required for determination of the quality and chemical characteristics of NOx reduction agent AUS 32 (aqueous urea solution) as specified in ISO 22241-1.
PUBLISHED
ISO 22241-2:2019
PROJECT
ISO/WD 22241-2
20.20
Working draft (WD) study initiated
Jul 24, 2026