Aqueous Urea Solution (AUS) 40 is Marine Grade Urea Solution for marine applications where Selective Catalytic Reduction (SCR) is used in accordance with ISO 1811-1 standard to meet emission requirements. Our Blueforce AUS 40 Urea Solution is produced at the highest purity and quality. We pride ourselves on our fast delivery and quality product, where every batch is laboratory tested. You can be sure of the high quality AUS 40 Urea Solution suitable for your marine fleet.