This standard specifies the quality characteristics of the NOx reducer AUS 32 (urea aqueous solution) required for the operation of converters using a selective catalytic reduction method called SCR (selective catalytic reduction) in vehicles equipped with diesel engines. SCR converters are particularly suitable for selectively reducing nitrogen oxide (NOx) emissions from diesel engines. In the remainder of this standard, “NOx Reductant AUS 32” is abbreviated as “AUS 32”.
KS R ISO 22241-1:2013 history
2020KS R ISO 22241-1:2020 Diesel engines — NOx reduction agent AUS 32 —Part 1: Quality requirements
2013KS R ISO 22241-1:2013 Diesel engines — NOx reduction agent AUS 32 — Part 1: Quality requirements
2008KS R ISO 22241-1:2008 Diesel engines-NOx reduction agent AUS 32-Part 1:Quality requirements