WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktdatenblatt des Herstellers
Value from the PTB table, not verified
Deutsche Heraklith Herakustik G wood wool acoustic panel
Herakustik G
PTB reference data
Original description
Deutsche Heraklith Herakustik G wood wool acoustic panel
Material properties
Manufacturer: Deutsche Heraklith GmbH
Thickness: 1 in
Wall distance: 9.1 in
Backing: 1.6 in Heraflax-SAP
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.70
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.65 | 0.85 | 0.60 | 0.65 | 0.70 | 0.85 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Value from the PTB table, not verified
NRC: 0.70 (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 |
|---|---|---|---|---|---|---|---|
| 25 mm · 12 kg / m² · 230 mm Abstand / 40 mm Heraflax-SAP · Decken- and Wandverkleidung · grobstrukturiert white | 0.70 | 0.67 | 0.85 | 0.60 | 0.67 | 0.72 | 0.83 |
Measured values as a table (1 measurement)
Access frequency bands, variants and export. Create a permanent free account
Last updated: