Description: Integral of the product of the sound pressure p and the component of the particle velocity un, which is perpendicular to a surface at a point of this surface, over this surface; Name: Acoustic power
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
Description: Nomenclature of goods according to the current regulation including the tariff and statistical nomenclature and the common Customs Tariff in the European Community. The structure of the number defines in the 1.-6. place the HS code of the WCO, in the 7.-8. the combined nomenclature of the European Community, in the 9.-10. the TARIC Code (Integrated Tariff of the European Communities) and in the 11th place a code for national purposes; Name: customs tariff number (TARIC)