Acoustics. Test code for the measurement of airborne noiseemitted by rotating electrical machinery. Part 1: Engineering method for free- field conditions over a reflecting plane
NORM herausgegeben am 1.6.1995
Designation standards: STN EN 21680-1
Classification mark: 011656
Catalog number: 50230
Note: UNGÜLTIG
Publication date standards: 1.6.1995
Approximate weight : 30 g (0.07 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN