AudienceHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: JASA 104 (6) Dec 1998
Heavily upholstered chair, occupied, seat back 7.5 cm, seat bottom 10 cm, arm rests 2 cm, Kanagawa
PTB reference data
Original description
Heavily upholstered chair, occupied, seat back 7.5 cm, seat bottom 10 cm, arm rests 2 cm, Kanagawa
Material properties
No further information available.
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.78
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.70 | 0.75 | 0.75 | 0.75 | 0.85 | 0.90 |
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Method (354): Measured