Def Diesel Exhaust Fluid/ AUS32 Automotive Urea Solution 32.5%
Quality standards for Automotive Urea Solution/AdBlue®/DEF Fluid/AUS 32
Automotive Urea Solution/AdBlue®/DEF Fluid/AUS 32
AdBlue®(®= registered trademark of the Verband der Automobilindustrie e.V. (VDA).) also known as diesel exhaust treatment fluid.DEF (Diesel Exhaust Fluid), is used in the United States and Canada, while AdBlue® is used in Europe ; China named it nitrogen oxide reducing agent(氮氧化物还原剂) in 2012; The ISO scientific name is AUS32; Also known as Automotive Urea Solution.It is a urea aqueous solution with a concentration of 32.5% and a solvent of ultrapure water.
| Project | Quality Indicators | Project | Quality Indicators |
| concentration | 31.8 ~ 33.2% | Fe | ≤0.5mg/kg |
| density(20℃) | 1087.0～1093.0kg/m³ | Cu | ≤0.2mg/kg |
| refractivity(20℃) | 1.3814 ~ 1.3843 | Zn | ≤0.2mg/kg |
| Alkalinity (NH3 conversion rate) | ≤0.2% | Cr | ≤0.2mg/kg |
| BIURET | ≤0.3% | Ni | ≤0.2mg/kg |
| aldehyde | 5mg/kg | Al | ≤0.5mg/kg |
| insoluble matter | ≤20mg/kg | Mg | ≤0.5mg/kg |
| Phosphoric acid (PO4) | ≤0.5mg/kg | Na | ≤0.5mg/kg |
| Ca | ≤0.5mg/kg | K | ≤0.5mg/kg |
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