MetalHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Porous sintered metal panel, backed with 2 inch fiberglass
Type A300c – Almute
PTB reference data
Original description
Porous sintered metal panel, backed with 2 inch fiberglass
Material properties
Manufacturer: Peer
Thickness: 2.1 inches
Wall distance: 400 mm
Backing: 2 inch fiberglass
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.98
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.75 | 1.05 | 0.95 | 1.05 | 1.05 | 1.05 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured