Reference surfaceBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968, c1-1
Value from the PTB table, not verified
Gypsum board on battening, 9.5 mm, wall distance 100 mm (DNA 1968, c1-1)
PTB reference data
Original description
Gypsum board on battening, 9.5 mm, wall distance 100 mm (DNA 1968, c1-1)
Material properties
Thickness: 9.5 mm
Wall distance: 100 mm
Surface weight: 8.3 kg/m²
Mounting: on 24/48 mm battening
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.05
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.10 | 0.05 | 0.00 | 0.00 | 0.05 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9,5 mm · 8,3 kg / m² · 100 mm | 0.05 | 0.20 | 0.11 | 0.12 | 0.12 | 0.13 | 0.05 | 0.07 | 0.05 | 0.07 | 0.03 | 0.02 | 0.02 | 0.02 | 0.02 | 0.00 | 0.05 | 0.03 | 0.02 | 0.20 |
Measured values as a table (1 measurement)
Access frequency bands, variants and export. Create a permanent free account
Last updated: