NBN EN 60651 : 96 AMD 1 2001被替代
GELUIDNIVEAUMETERS
出版：Belgian Standards
专家解读视频
Describes instruments (sound level meters) for the measurement of certain frequency and time weighted sound pressure levels. Gives the following characteristics of sound level meters: - directional characteristics; - frequency weighting characteristics; - time weighting, detector and indicator characteristics; - sensitivity to various environments.
I.S. EN 60651:1994 - Identical
DIN EN 60651 : 1994 AMD 2 2003 - Identical
BS EN 60651 : 1994 - Identical
DIN EN 60651 : 1994 AMD 2 2003 - Identical
