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