OtherHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Sound System Engineering, Don Davis and Carolyn Davis
Spincoustic blanket, 2 inch, covered with 3/16 inch perforated cement-asbestos board (Transite), 11% open areas
PTB reference data
Original description
Spincoustic blanket, 2 inch, covered with 3/16 inch perforated cement-asbestos board (Transite), 11% open areas
Material properties
Thickness: 2 inch, 3/16 inch
Perforation: 11%
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.71
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.80 | 1.00 | 0.95 | 0.70 | 0.60 |
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Method (354): Measured