Description: determined through a surface, product of the sound pressure, p, and the component of the particle velocity, un, at a point on the surface in the direction normal to the surface, integrated over that surface; Name: sound pow
Description: through a surface, product of the sound pressure, p, and the component of the particle velocity, un, at a point on the surface in the direction normal to the surface, integrated over that surface; Name: sound power
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