Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
Ecophon Focus C/B glass wool panel
Ecophon – Focus C/B
PTB reference data
Original description
Ecophon Focus C/B glass wool panel
Material properties
Manufacturer: Ecophon GmbH
Thickness: 20 mm
Wall distance: 20 mm
Surface: Akutex T treated, non-woven faced, coated edges
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 | 0.05 | 0.30 | 0.75 | 0.95 | 0.95 | 0.80 |
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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 |
|---|---|---|---|---|---|---|---|
| 20 mm · ca. 3 kg / m² incl. Unterkonstruktion · tKh = 20 mm (totale Konstruktionshöhe) · Deckenelement, leicht demontierbar · Akutex T | 0.60 | 0.05 | 0.30 | 0.75 | 0.95 | 0.95 | 0.80 |
Measured values as a table (1 measurement)
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