StoneLow absorption
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Odeon (Index 201)
Smooth brickwork, 10 mm deep pointing, pit sand mortar
PTB reference data
Original description
Smooth brickwork, 10 mm deep pointing, pit sand mortar
Material properties
No further information available.
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.15
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.10 |
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Method (354): Measured