Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
Ecophon Master C/alpha glass wool panel with Akutex T surface
Ecophon – Master C/alpha
PTB reference data
Original description
Ecophon Master C/alpha glass wool panel with Akutex T surface
Material properties
Manufacturer: Ecophon GmbH
Thickness: 1.6 in
Wall distance: 1.6 in, 7.9 in
Surface: Akutex T coating, non-woven faced, color-coated edges
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.95
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.75 | 1.00 | 1.00 | 0.95 | 0.95 |
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| Compare | Value | |
|---|---|---|
| tKh = 1.6 in (totale Konstruktionshöhe) | NRC0.95 | |
| tKh = 7.9 in (totale Konstruktionshöhe) | NRC0.85 |
NRC: 0.95 (derived from ISO 354 lab data)
Weight / density: ca. 5,5 kg / m²
Dimensions: 600 x 24 in, 625 x 25 in
Application: for gute Akustik and Sprachverständlichkeit, z.B. Schulen, Großraumbüros usw.
Measured values as a table (2 measurements)
| Build-up | NRC | 63 Hz | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|---|
| 40 mm · ca. 5,5 kg / m² · tKh = 40 mm (totale Konstruktionshöhe) · for gute Akustik and Sprachverständlichkeit, z.B. Schulen, Großraumbüros usw. · Akutex T | 0.95 | – | 0.20 | 0.75 | 1.00 | 1.00 | 0.95 | 0.95 |
| 40 mm · ca. 5,5 kg / m² · tKh = 200 mm (totale Konstruktionshöhe) · for gute Akustik and Sprachverständlichkeit, z.B. Schulen, Großraumbüros usw. · Akutex T | 0.85 | 0.20 | 0.50 | 0.75 | 0.80 | 0.95 | 0.95 | 0.95 |
Measured values as a table (2 measurements)
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