Electroacoustics. Audio-frequency induction loop systems for assisted hearing. Methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing conformity with guidelines on limits for human exposure.
NORMA vydána dne 31.5.2011
Designation standards: BS EN 62489-2:2011
Note: NEPLATNÁ
Publication date standards: 31.5.2011
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Kategorie: Technické normy BS