NEN-ISO 9295
Acoustics - Measurement of high-frequency noise emitted by computer and business equipment
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 January 1992 |
| Status: | inactive |
| Page Count: | 24 |
| ICS Code (IT terminal and other peripheral equipment): | 35.180 |
| ICS Code (Noise emitted by machines and equipment): | 17.140.20 |
scope:
This Standard specifies four methods for the determination of the sound power levels of high-frequency noise emitted by computer and business equipment in the frequency range covered by the octave band centred at 16 kHz. They are complementary to the methods described in ISO 7779.The first three methods are based on the reverberation room technique described in clause 5 of ISO 7779:1988. The fourth method makes use of a free field over a reflecting plane as described in clause 6 of ISO 7779:1988.
Document History
NEN-ISO 9295
January 1, 1992
Acoustics - Measurement of high-frequency noise emitted by computer and business equipment
This Standard specifies four methods for the determination of the sound power levels of high-frequency noise emitted by computer and business equipment in the frequency range covered by the octave...