F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01 MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
F01N2900/00 Details of electrical control or of the monitoring of the exhaust gas treating apparatus
F01N2900/06 Parameters used for exhaust control or diagnosing
F01N2900/18 said parameters being related to the system for adding a substance into the exhaust
F01N2900/1806 Properties of reducing agent or dosing system
F01N2900/1808 Pressure