Mineral woolHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer's product sheet
Value from the PTB table, not verified
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
0.60
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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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 35 mm · ca. 13 kg / m² incl. Unterkonstruktion · tKh = 200 mm (totale Konstruktionshöhe) · ceiling and Schalldämmung for Räume, deren Zwischenwände nicht bis to the structural ceiling hinaufreichen. Auch vertikale Schalldämmung von z.B. airborne and impact sound. Leicht demontierbar · Akutex T | 0.60 | 0.25 | 0.35 | 0.55 | 0.90 | 1.00 | 0.90 |
Measured values as a table (1 measurement)
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