Description: Unique number and letter combination assigned by the manufacturer to identify the device for the order; Name: Manufacturer order code
Description: by manufactures issued unique combination of numbers and letters used to identify the device for ordering; Name: order code of manufacturer
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 power