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ISO 22241-1:2006
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Diesel engines -- NOx reduction agent AUS 32 -- Part 1: Quality requirements

This standard was last reviewed* in 2009.

*ISO standards are reviewed every five years.

Abstract

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.

 

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