MetalHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Steel deck, perforated webs, absorptive backing
Acustadek B
PTB reference data
Original description
Steel deck, perforated webs, absorptive backing
Material properties
Manufacturer: ASC Pacific
Thickness: 1 1/2 inch
Wall distance: 0 mm
Backing: absorptive backing
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.61
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.65 | 1.20 | 0.80 | 0.45 | 0.25 |
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Method (354): Measured