AdBlue should meet the  DIN V 70070 standard and ISO 22241-1 specifications and complies with ISO and CEFIC regulations to safeguard the correct functioning of your vehicle's SCR system. The product is slightly alkaline with a pH of approximately 9.0 so should not be kept in contact with aluminum, brass, mild steel. Stainless steel and plastic tanks and fittings are recommended. Freezing of AdBlue starts at minus 11.5 °C AdBlue can be used once it has frozen. Once AdBlue has melted, it can be used without problems. The best way to remove crystallisation or spillage is to rinse with water. When you rinse with water be sure that the is well sealed in order to prevent any contamination of the dilution.

Adblue (the registered trade mark for AUS32) is a 32.5% aqueous urea solution developed for use in selective catalytic reduction (SCR) systems fitted to diesel engines. The purpose of this system is to reduce nitrogen oxide emissions present in the exhaust gas stream.

Adblue (the registered trade mark for AUS32) is a 32.5% aqueous urea solution developed for use in selective catalytic reduction (SCR) systems fitted to diesel engines. The purpose of this system is to reduce nitrogen oxide emissions present in the exhaust gas stream. Adblue can be stored for 1 year, ideally away from direct sunlight and temperature extremes. Its freezing point is at -11°C, and upon thawing returns to initial quality. It should be stored in a sealed package in a well ventilated storage area.