WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerunterlagen
Value from the PTB table, not verified
ESO-Akustik ESO-Phondraht Panel
ESO-Phondraht Panel
PTB reference data
Original description
ESO-Akustik ESO-Phondraht Panel
Material properties
Manufacturer: ESO-Akustik Brigitte Schmelzle
Thickness: 2 mm
Wall distance: 50 mm, 200 mm
Backing: 40 mm mineral wool
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.95
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.35 | 0.75 | 0.90 | 0.90 | 0.95 | 1.00 |
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| Compare | Value | |
|---|---|---|
| 200 mm (gefüllt) | αw0.95 | |
| 50 mm (gefüllt) | αw0.80 |
Application: Holzrahmenkonstruktion
Measured values as a table (2 measurements)
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 mm · 200 mm (gefüllt) · Holzrahmenkonstruktion · gewobene Holzoberfläche | 0.95 | 0.20 | 0.32 | 0.58 | 0.60 | 0.75 | 0.90 | 0.93 | 0.92 | 0.88 | 0.86 | 0.88 | 0.99 | 1.00 | 0.92 | 0.98 | 0.93 | 1.00 | 1.07 |
| 2 mm · 50 mm (gefüllt) · Holzrahmenkonstruktion · gewobene Holzoberfläche | 0.80 | 0.17 | 0.22 | 0.30 | 0.43 | 0.51 | 0.58 | 0.72 | 0.87 | 0.93 | 0.98 | 0.95 | 1.00 | 0.93 | 0.92 | 1.00 | 1.05 | 1.00 | 1.07 |
Measured values as a table (2 measurements)
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