![](https://www.eersta.com/wp-content/uploads/2023/08/bg-page-title-diesel.jpg)
DIESEL EXHAUST FLUID
![](https://www.eersta.com/wp-content/uploads/2023/08/red-corner.png)
PUREBLUE™
DEF
Diesel Exhaust Fluid
PUREBLUE™ AdBlue® is an aqueous urea solution, DEF (Diesel Exhaust Fluid), 32.5% in weight, mixed with demineralised water for use in selected catalyst reduction systems.
It is a clear solution that is non-toxic, 100% biodegradable and safe to handle.
PUREBLUE™ AdBlue® is a reduction agent for oxides of nitrogen (NOx), required by SCR (Selective Catalytic Reduction) technology in diesel vehicles.
SCR (Selective Catalytic Reduction) systems require a continuous provision of a solution of Urea at 32.5% in order to operate correctly. SCR technology has been developed to fulfil the requirements of Euro 4 and Euro 5 emissions standards.
Available in :
![](https://www.eersta.com/wp-content/uploads/2023/09/10L-icon-b.png)
![dr](https://www.eersta.com/wp-content/uploads/2023/09/Drum-Icon-b.png)
AdBlue® is licensed by Verband der Automobilindustrie (VDA) and is used under sublicense to License. VDA administers the quality audit according to ISO 22241 guidelines.