WoodBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data unter http://www.lignoform.com, Feb. 01
Value from the PTB table, not verified
Lignoform Quadrillo ceiling tile with acoustic non-woven, spacing 150 mm
Lignoform Quadrillo ceiling panel with acoustic non-woven
PTB reference data
Original description
Lignoform Quadrillo ceiling tile with acoustic non-woven, spacing 150 mm
Material properties
Manufacturer: Lignoform Benken AG
Thickness: 10 mm
Wall distance: 150 mm
Backing: acoustic non-woven
Application: ceiling, wall
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.60
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.50 | 0.85 | 0.70 | 0.55 | 0.50 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 mm · 150 mm · Montage: Einlegen in T-Profile · gerillte Holzoberfläche, glatt im Randbereich 50 mm, Rillenachsmass 5 bzw. 10 mm | 0.60 | 0.10 | 0.15 | 0.25 | 0.41 | 0.48 | 0.65 | 0.80 | 0.84 | 0.85 | 0.83 | 0.74 | 0.57 | 0.54 | 0.58 | 0.55 | 0.50 | 0.51 | 0.46 |
Measured values as a table (1 measurement)
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