OtherHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Sound System Engineering, Don Davis and Carolyn Davis
Sprayed Limpet asbestos, 1 inch, 1 coat, unpainted on solid backing
PTB reference data
Original description
Sprayed Limpet asbestos, 1 inch, 1 coat, unpainted on solid backing
Material properties
Thickness: 1 inch
Surface: unpainted
Mounting: on solid backing
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.72
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.40 | 0.75 | 0.95 | 0.95 | 0.95 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured