Ships and marine technology. Marine NOx reduction agent AUS 40 - Quality requirements Ingestion-build-58320 5 Safety requirements and/

5 Safety requirements and/

Manufacturers of pipe and equipment used in chemical plants

BS EN 50131-1 is intended to assist insurers

which specify the characteristics and functional requirements of the documentation

Ships and marine technology. Marine NOx reduction agent AUS 40 - Quality requirements Ingestion-build-58320 5 Safety requirements and/1 Scope This part of ISO 18611 specifies the quality characteristics of the marine NOx reduction agent, aqueous urea solution at 40 % concentration (AUS 40), which is needed to operate so called SCR (selective catalytic reduction) converters. In marine applications, for example, for engine exhaust gas treatment, SCR converters are particularly suitable for selectively reducing the nitrogen oxide (NOx) emissions of internal combustion engines and