StoneHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Odeon (Index 1003)
Smooth brickwork with mineral wool in joints
PTB reference data
Original description
Smooth brickwork with mineral wool in joints
Material properties
Hole size: 20 mm
Backing: 70 mm mineral wool
Surface: smooth
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.27
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.05 | 0.05 | 0.10 | 0.10 | 0.15 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured