ISO 22241-1:2006

Diesel engines — NOx reduction agent AUS 32 — Part 1: Quality requirements

ISO 22241-1:2006 specifies the quality characteristics of the NOx reduction agent AUS 32 (aqueous urea solution) which is needed to operate converters with selective catalytic reduction, so-called SCR (Selective Catalytic Reduction) converters, in motor vehicles with diesel engines. SCR converters are particularly suitable for selectively reducing the nitrogen oxide (NOx) emissions of diesel engines.

Keep me up-to-date

Sign up to receive updates when there are changes to this standard