AUS 40 Specifications

Aqueous Urea Solution (AUS) 40 is the Maritime Grade Urea Solution for marine applications where Selective Catalytic Reduction (SCR) is used to meet emission requirements. At Innoco Oil, our AUS 40 Urea Solution is produced to the highest purity and quality. We pride ourselves for our speedy delivery and quality product where every batch is laboratory-tested. You can be assured of a high quality AUS 40 Urea Solution suitable for your marine fleet.

INCOBlue® AUS 40 (Marine Grade Urea Solution) Specifications

Parameters Values Unit
Urea Content 39.0 – 41.0 % (m/m)
Density at 20 oC 1105 – 1177 kg/m3
Refractive Index at 20 1.3947 – 1.3982
Alkalinity as NH3 < 0.5 % (m/m)
Biuret < 0.8 mg/kg
Aldehydes < 100 mg/kg
Insoluble Matter < 50 mg/kg
Phosphate(PO4) < 1.0 mg/kg
Calcium < 1.0 mg/kg
Iron < 1.0 mg/kg
Magnesium < 1.0 mg/kg
Sodium < 1.0 mg/kg
Potassium < 1.0 mg/kg

Reference: ISO 18611 – Marine NOx Reduction Agent AUS 40