StoneLow absorption
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: RAMSETE
Half full alveolated block 25x30x19 cm, F/A=45% without whitewash
PTB reference data
Original description
Half full alveolated block 25x30x19 cm, F/A=45% without whitewash
Material properties
Dimensions: 25x30x19 cm
Perforation: 45%
Surface: without whitewash
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