Description: describes how humans intervene in a control system; Name: mode of operation
Description: characterization of the way and the extent to which the human operator intervenes in the control equipment; Name: operating mode
Description: internal volume of a compartment, including the volume of nozzles to the first connection (flange, coupling, screwed connection, weld seam) but excluding the volume of internal structures (e. g. baffles, agitators); Name: Filling volume of the equipment