StoneLow absorption
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Harris:Handbook of Acoustical Measurements and Noise Control, McGraw Hill 1991
Concrete block, painted
PTB reference data
Original description
Concrete block, painted
Material properties
Surface: painted
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.08
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.05 | 0.05 | 0.05 | 0.10 | 0.10 |
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| Compare | Value |
|---|---|
| αw0.08 | |
| αw0.08 |