Mineral woolHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktblatt des Herstellers
Ecophon RT A gypsum board and glass wool two-layer absorber
Ecophon – RT A
PTB reference data
Original description
Ecophon RT A gypsum board and glass wool two-layer absorber
Material properties
Manufacturer: Ecophon GmbH
Thickness: 35 mm
Wall distance: 200 mm
Surface: Akutex T treated
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.66
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.35 | 0.55 | 0.90 | 1.00 | 0.90 |
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Method (354): Measured