GypsumLow absorption
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Sound System Engineering, Don Davis and Carolyn Davis
Plaster, gypsum or lime, smooth finish on lath
PTB reference data
Original description
Plaster, gypsum or lime, smooth finish on lath
Material properties
Surface: smooth finish
Mounting: on lath
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.03
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.00 | 0.00 | 0.05 | 0.05 | 0.05 | 0.05 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured