Marine SCR –
Selective Catalytic Reduction

SCR technology has been introduced to the maritime industry over the past five years. This brings new requirements related to pollution, regulated by IMO Tier III emission standards.

IMO stands for International Maritime Organization. IMO Tier III emission standards are a set of international standards designed to improve air quality and protect public health by controlling emissions from vessels.

Each tier limits NOx emissions to a specific value based on the engine’s rated speed.

• Tier II nitrogen oxide (NOx) limits range from 14.4 to 7.7 g/kWh.
• Tier III nitrogen oxide (NOx) limits range from 3.4 to 2 g/kWh.

We perform monitoring and documentation of your Marine SCR system. Using our portable Testo 350 Marine exhaust gas analyzer and PAL-UREA tester, we conduct precise analysis of the exhaust gases from your diesel engine and the quality of UREA in your tank.