Description: accumulated span of uptime from the object's initial startup or from recovery to failure; Name: uptime to failure
Description: Operating time accumulated from the first use, or from restoration, until failure ; Name: Operating time to failure
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