TextileHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
mbakustik curtain Type AV 22, 2-layer, B1
Type AV 22
PTB reference data
Original description
mbakustik curtain Type AV 22, 2-layer, B1
Material properties
Manufacturer: mbakustik
Wall distance: 0.30 m
Up to fire class: not easily flammable (B1)
Mounting: 0.30 m in front of reverberation chamber wall
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.83
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.60 | 0.85 | 1.05 | 1.10 | 1.20 |
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Method (354): Measured