BS 7135-2:1989
$102.76
Noise emitted by computer and business equipment – Method of measurement of high-frequency noise
Published By | Publication Date | Number of Pages |
BSI | 1989 | 20 |
Four methods for determining the sound power levels of high-frequency noise in the octave band centred at 16 Hz, three based in the reverberation room technique and on in free-field conditions over a reflecting plane.