SCR has various meanings in the Governmental & Military category. Discover the full forms, definitions, and usage contexts of SCR in Governmental & Military.
This after–treatment technology reduces NOx emissions by using a urea–based additive, sometimes referred to as DEF. The ammonia in the urea mixes with engine exhaust gases in the SCR catalyst, converting NOx to nitrogen and water vapor.
Governmental & MilitaryLast updated: