Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer's product sheet
Value from the PTB table, not verified
Ecophon Focus F glass wool fiber absorber
Ecophon – Focus F
PTB reference data
Original description
Ecophon Focus F glass wool fiber absorber
Material properties
Manufacturer: Ecophon GmbH
Thickness: 0.8 in
Wall distance: 17 in, 0.8 in
Surface: visible surface treated with Akutex T, back non-woven faced
Mounting: tongue and groove edges
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.85
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.70 | 0.85 | 0.90 | 1.00 | 1.00 |
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| Compare | Value | |
|---|---|---|
| tKh = 17 in (totale Konstruktionshöhe) | NRC0.85 | |
| tKh = 0.8 in (totale Konstruktionshöhe) | NRC0.75 |
NRC: 0.85 (derived from ISO 354 lab data)
Weight / density: ca. 2,5 kg / m²
Dimensions: 600 x 24 in, 600 x 47 in
Application: Deckenelement, mechanische Befestigung direkt on der Unterlage
Measured values as a table (2 measurements)
| Build-up | NRC | 63 Hz | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|---|
| 20 mm · ca. 2,5 kg / m² · tKh = 430 mm (totale Konstruktionshöhe) · Deckenelement, mechanische Befestigung direkt on der Unterlage · Akutex T | 0.85 | 0.60 | 0.60 | 0.70 | 0.85 | 0.90 | 1.00 | 1.00 |
| 20 mm · ca. 2,5 kg / m² · tKh = 20 mm (totale Konstruktionshöhe) · Deckenelement, mechanische Befestigung direkt on der Unterlage · Akutex T | 0.75 | – | 0.05 | 0.25 | 0.70 | 0.95 | 1.00 | 0.95 |
Measured values as a table (2 measurements)
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