
Octave, Half-octave And Third-octave Band Filters Intended For The Analysis Of Sounds And Vibrations
出版:International Electrotechnical Committee

专家解读视频
Applies to band filters commonly known as octave, half-octave and third-octave band filters of the passive or active type, the latter including amplifier elements.
UNE 21328-4:1975 - Identical
SS IEC 225:1985 - Identical
CEI 29-4 Ed. 1 (1968) - Identical
NBN EN 28662-1:1993 - Identical
NBN C 97 111:1973 - Identical
NFC 97 010:1974 - Identical
BS 2475:1964 - Equivalent
AS Z41-1969 - Equivalent