Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Mineral fiber, lay-in, with polymeric membrane
Type 821
PTB reference data
Original description
Mineral fiber, lay-in, with polymeric membrane
Material properties
Manufacturer: Armstrong World Industries
Thickness: 5/8 inch
Wall distance: 400 mm
Backing: polymeric membrane
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.55
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.55 | 0.30 | 0.80 | 0.80 | 0.60 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured