NA 022

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

DIN EN 61669 [CURRENT] references following documents:

Document number Edition Title
IEC 60318-4 2010-01 Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts More 
ISO/IEC Guide 98-4 2012-11 Uncertainty of measurement - Part 4: Role of measurement uncertainty in conformity assessment More