NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN 60068-2-81 [CURRENT] references following documents:

Document number Edition Title
DIN EN ISO 266 1997-08 Acoustic - Preferred frequencies (ISO 266:1997); German version EN ISO 266:1997 More 
ISO 266 1997-04 Acoustics - Preferred frequencies More