Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
Ecophon Focus F glass wool panel on battens
Ecophon – Focus F on battens
PTB reference data
Original description
Ecophon Focus F glass wool panel on battens
Material properties
Manufacturer: Ecophon GmbH
Thickness: 0.8 in
Wall distance: 1.6 in, 17 in
Backing: non-woven faced
Surface: treated with Akutex T
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.80
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.45 | 0.90 | 0.95 | 0.90 | 0.90 |
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| Compare | Value | |
|---|---|---|
| tKh = 17 in (totale Konstruktionshöhe) | NRC0.80 | |
| tKh = 1.6 in (totale Konstruktionshöhe) | NRC0.80 |
NRC: 0.80 (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 | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 20 mm · ca. 2,5 kg / m² · tKh = 428 mm (totale Konstruktionshöhe) · Deckenelement, mechanische Befestigung direkt on der Unterlage · Akutex T | 0.80 | 0.10 | 0.45 | 0.90 | 0.95 | 0.90 | 0.90 |
| 20 mm · ca. 2,5 kg / m² · tKh = 40 mm (totale Konstruktionshöhe) · Deckenelement, mechanische Befestigung direkt on der Unterlage · Akutex T | 0.80 | 0.10 | 0.45 | 0.90 | 0.95 | 0.90 | 0.90 |
Measured values as a table (2 measurements)
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