About DEF

 
 

DEF is used in a process called selective catalytic reduction (SCR) to reduce emissions of oxides of nitrogen from the exhaust of diesel engined motor vehicles. DEF is a 32.5% solution of high-purity urea in reverse osmosis water that is clear, non-toxic and is safe to handle. However, it can be corrosive for some metals, and must be stored and transported using the correct materials.

DEF is carried onboard SCR-equipped vehicles in specially designed tanks, and is dosed into the SCR system at a rate equivalent to 2–5% of diesel consumption. This low dosing rate ensures long refill periods and minimizes the tank's impact on chassis space. On-highway SCR systems are currently in use throughout Europe, in Japan, Australia, Hong Kong, Taiwan, Korea, New Zealand and Singapore. The United States Environmental Protection Agency’s (US EPA) 2010 legislation will limit NOx to levels that will require North American trucks to be equipped with SCR post-2010.

 

DEF Safety Data Sheet

English 32.5%

Source:   Wikipedia.com

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DEF Safety Data Sheet Spanish 32.5%