MetalHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter www.owa.de
OWAtecta perfora micro-perforated steel ceiling tile, 0.64% open area
OWAtecta – perfora
PTB reference data
Original description
OWAtecta perfora micro-perforated steel ceiling tile, 0.64% open area
Material properties
Manufacturer: Odenwaldwerk
Wall distance: 200 mm
Perforation: 0.64%
Application: ceiling
Mounting: suspension height 200 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.44
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.60 | 0.65 | 0.40 | 0.35 | 0.15 |
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Method (354): Measured
