AUS40 is a 40% urea solution specifically formulated for marine vessels utilizing SCR technology. It reduces NOx emissions, ensuring compliance with IMO Tier III regulations.

What is AUS40 and Why Is It Important?

AUS40 is a 40% urea solution specifically designed for marine diesel engines. It plays a key role in reducing nitrogen oxide (NOx) emissions by working with Selective Catalytic Reduction (SCR) systems. AUS40 is mandatory for vessels operating within Emission Control Areas (ECAs) to meet environmental regulations.

What Are Emission Control Areas (ECAs)?

ECAs are designated marine zones where strict controls are enforced to limit airborne emissions from ships. These regulations are defined under Annex VI of the MARPOL Protocol (1997), focusing on reducing pollutants like NOx and SOx for cleaner ocean environments.

AUS40 vs AdBlue® – What’s the Difference?

While both AUS40 and AdBlue® serve the same purpose of cutting down NOx emissions, AUS40 contains a higher concentration of urea (40%). This stronger formula is necessary to meet the demands of larger marine engines, whereas AdBlue® (32.5% urea) is typically used for land-based diesel vehicles.

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Key Features:

• ISO 18611 Compliant
• Ideal for cargo ships and offshore vessels
• Available in bulk quantities