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DIN EN ISO 5136:2009-11
Acoustics - Determination of sound power radiated into a duct by fans and other air-moving devices - In-duct method (ISO 5136:2003); German version EN ISO 5136:2009
| Fecha edición: |
2009-11-01
En Vigor
|
|---|---|
| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This standards specifies a method for the measurement of the sound power radiated into a duct by fans and other aerodynamic sound sources (dampers, throttles, boxes). The standard is mainly intended for measurements of air-moving devices, for the measurement of flow noise from air-handling (passive) units ISO7235 is recommended. The source under test must emit steady noise. The measurements are carried out in ducts with circular cross sections between 0,15 m and 2 m. Normative annexes describe measurements in ducts with diameters between 0,07 m and 7 m. The air temperature during the measurements must lie between -50 °C und +70 °C, at flow velocities of up to 40 m/s (informative up to 60 m/s) at a maximum permissible swirl angle of 15°. Measurements are carried out in one-third-octave bands between 50 Hz and 10000 Hz (informative 20000 Hz). |
| Keywords: | Acoustic measurement|Acoustic testing|Acoustics|Definitions|Determination|Duct methods|Ducted fans|Fans|Loudness levels|Measurement|Measuring results|Measuring techniques|Noise (environmental)|Noise measurement|Power levels|Sound|Sound intensity|Sound level|Sound levels|Sound power|Testing|Ventilators|Volume (sound) |
| ICS: | 17.140.20 - Ruido emitido por las máquinas, 23.120 - Ventiladores. Acondicionadores de aire |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN ISO 5136:2009 Idéntica ISO 5136:2003 |
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Reemplazo Normas |
Reemplaza a DIN EN ISO 5136:2003-10 Reemplaza a DIN EN ISO 5136/A1:2009-05 |










