Determination of Sound Power Levels Using Different Standards: An Inter-NordicComparison. Nordtest Project 1220-95

摘要

4 different laboratories have selected its own two machines and tested themaccording to several different basic sound power standards. The results clearly indicate that the difference between the different standards for determining sound power levels is small. The conclusion is that the difference within a laboratory between different, as to grade of accuracy, equivalent ISO-standards for the determination of sound power levels is less than or equal to the difference between different laboratories applying one specified standard.