Test code for the measurement of airborne noise emitted by rotating electrical machinery. Engineering method for free-field conditions over a reflecting plane.
NORM herausgegeben am 28.6.1991
Designation standards: BS 7458-1:1991
Note: UNGÜLTIG
Publication date standards: 28.6.1991
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: British technical standard
Kategorie: Technische Normen BS