GypsumBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968, b2.2-1b
Slotted gypsum board cassette, 625 x 625 mm, 9.5 mm thick
PTB reference data
Original description
Slotted gypsum board cassette, 625 x 625 mm, 9.5 mm thick
Material properties
Thickness: 9.5 mm
Wall distance: 30 mm
Dimensions: 625 × 625 mm
Perforation: slotted
Hole size: 2.3 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.36
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.30 | 0.85 | 0.60 | 0.20 | 0.10 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured