AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Ursprüngliche Quelle: []. Data-Category in CATT: UPHOLST_HEAV, C: Chairs, D: Heavily
Chairs, heavily upholstered concert hall chairs, average.
PTB reference data
Original description
Chairs, heavily upholstered concert hall chairs, average.
Material properties
No further information available.
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.80
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.70 | 0.80 | 0.85 | 0.85 | 0.85 | 0.80 |
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Method (354): Measured