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sklademVydáno: 1978-11-30
BS 4954-2:1978
Methods for testing and rating induction units for air distribution systems Acoustic testing and rating
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| Označení normy: | BS 4954-2:1978 |
| Počet stran: | 22 |
| Vydáno: | 1978-11-30 |
| ISBN: | 0 580 10332 3 |
| Status: | Standard |
DESCRIPTION
BS 4954-2:1978
This standard BS 4954-2:1978 Methods for testing and rating induction units for air distribution systems is classified in these ICS categories:
- 91.140.30 Ventilation and air-conditioning systems
This Part of this British Standard deals with methods of acoustic testing and rating of induction units, defined in Part 1 of the standard, for:
- sound power emission;
- terminal attenuation.
Methods of acoustic testing and rating of induction units for sound power emission and terminal attenuation.