StoneHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter http://asonad.de, Feb. 2001
Asona SOUNDBLOX Type B Helmholtz Resonator
Helmholtz Resonator – SOUNDBLOX Type B
PTB reference data
Original description
Asona SOUNDBLOX Type B Helmholtz Resonator
Material properties
Manufacturer: Asona Deutschland GmbH
Up to fire class: F-180
Application: masonry
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.85
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.70 | 1.10 | 0.90 | 0.90 | 0.70 | 0.70 |
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Method (354): Measured