Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer's product sheet
Value from the PTB table, not verified
Ecophon Access E glass wool panel Akutex T
Ecophon – Access E
PTB reference data
Original description
Ecophon Access E glass wool panel Akutex T
Material properties
Manufacturer: Ecophon GmbH
Thickness: 0.8 in
Wall distance: 7.9 in
Surface: Akutex T, non-woven faced
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.85
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.80 | 0.90 | 0.85 | 0.90 | 0.90 |
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Value from the PTB table, not verified
NRC: 0.85 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 20 mm · ca. 4 kg / m² each nach Ausführung and Unterkonstruktion · tKh = 200 mm (totale Konstruktionshöhe) · Für Korridore and Decken geeignet, in deren Deckenhohlraum sich Installationen befinden, die häufiger Inspektion, Wartung usw. bedürfen. Der Abstand der einzelnen Elemente beträgt 23 mm, ausgefälzte Kante, Reliefartig, Schatteneffekt · Akutex T | 0.85 | 0.45 | 0.80 | 0.90 | 0.85 | 0.90 | 0.90 |
Measured values as a table (1 measurement)
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