WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 249
Ernst Schmelze Eco-Modulator 12/3 acoustic panel
Eco-Modulator – 12 / 3
PTB reference data
Original description
Ernst Schmelze Eco-Modulator 12/3 acoustic panel
Material properties
Manufacturer: Ernst Schmelze KG
Thickness: 20 mm
Wall distance: 50 mm, 200 mm
Perforation: 20 %
Hole size: 3 mm
Backing: mineral fiber mat
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.72
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.65 | 0.85 | 0.85 | 0.85 | 0.85 |
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| Compare | Value | |
|---|---|---|
| 200 mm | αw0.72 | |
| 50 mm | αw0.59 |
Weight / density: 3,5 - 3,7 kg /m²
Dimensions: bis 3000 x 850 mm
