AdBlue® Specifications
AdBlue® or Aqueous Urea Solution (AUS 32) is used in Selective Catalytic Reduction (SCR) technology, present in EURO 4, 5 or 6 diesel engine vehicles. AdBlue® by INCOBlue® is produced to ISO 22241 Standards, ensuring that you can be 100% sure of a high quality product that complies with the requirements laid down by truck manufacturers and governmental regulations.
AdBlue® specification according the ISO-22241 standard
| Min | Max | Units | |
| Urea Content | 31.8 | 33.2 | % (m/m) |
| Density at 20°C | 1.0870 | 1.0930 | g/cm³ |
| Refracting Index at 20°C | 1.3814 | 1.3843 | |
| Alkalinity as NH3 | 0.2 | % | |
| Biuret | 0.3 | % | |
| Aldehyde | 5 | mg/kg | |
| Insolubles | 20 | mg/kg | |
| Phosphate (PO4) | 0.5 | mg/kg | |
| Calcium | 0.5 | mg/kg | |
| Iron | 0.5 | mg/kg | |
| Copper | 0.2 | mg/kg | |
| Zinc | 0.2 | mg/kg | |
| Chromium | 0.2 | mg/kg | |
| Nickel | 0.2 | mg/kg | |
| Aluminium | 0.5 | mg/kg | |
| Magnesium | 0.5 | mg/kg | |
| Sodium | 0.5 | mg/kg | |
| Potassium | 0.5 | mg/kg |
Reference: http://www.iso22241.org/