Highly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Sound absorption blocks spaced 32 inch on centers
PTB reference data
Original description
Sound absorption blocks spaced 32 inch on centers
Material properties
Manufacturer: Tectum
Thickness: 3 inches
Wall distance: 0 mm
Mounting: spaced 32 inch on centers
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
1.18
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.45 | 1.15 | 1.75 | 1.75 | 1.75 |
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Method (354): Measured