StoneLow absorption
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: RAMSETE
3 heads wall - full brick UNI cm 12x25x5.5 F/A = 15% + whitewash
PTB reference data
Original description
3 heads wall - full brick UNI cm 12x25x5.5 F/A = 15% + whitewash
Material properties
Surface: whitewashed
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.03
Frequency values
αp nach ISO 11654
| f (Hz) | 63 | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|---|
| αp | 0.00 | 0.00 | 0.00 | 0.05 | 0.05 | 0.05 |
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Method (354): Measured