Acoustics; test code for the measurement of airborne noise emitted by rotating electrical machinery; part 1: engineering method for free-field conditions over a reflecting plane (ISO 1680-1:1986); german version EN 21680-1:1991
German title
Akustik; Verfahren zur Messung der Luftschallemission von umlaufenden elektrischen Maschinen; Teil 1: Verfahren der Genauigkeitsklasse 2 für Freifeldbedingungen über einer reflektierenden Ebene (ISO 1680-1:1986); Deutsche Fassung EN 21680-1:1991
Publication date
1991-11
Original language
German
Pages
15
Publication date
1991-11
Original language
German
Pages
15
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