StoneHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter http://asonad.de, März 2002
Asona SOUNDBLOX Helmholtz resonator Type P2
Helmholtz resonator – SOUNDBLOX Type P2
PTB reference data
Original description
Asona SOUNDBLOX Helmholtz resonator Type P2
Material properties
Manufacturer: Asona Deutschland GmbH
Up to fire class: F-180
Application: wall
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.63
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.95 | 0.95 | 0.65 | 0.50 | 0.45 |
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Method (354): Measured