BS 4856-4:1997
$86.31
Methods for testing and rating fan coil units, unit heaters and unit coolers – Determination of sound power levels of fan coil units, unit heaters and unit coolers using reverberating rooms
| Published By | Publication Date | Number of Pages |
| BSI | 1997 | 14 |
This British Standard establishes general rules for acoustic testing of fan coil units, unit heaters and unit coolers, in order to determine sound power levels. This standard is applicable to equipment operating under steady state conditions. It applies to sources that produce steady broad-band noise, and to sources that may produce significant discrete frequency components or narrow band noises.
