WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a3.1-6
Value from the PTB table, not verified
Lightweight chipboard on cross-battening (DNA 1968, a3.1-6)
PTB reference data
Original description
Lightweight chipboard on cross-battening (DNA 1968, a3.1-6)
Material properties
Thickness: 19 mm
Wall distance: 50 mm
Surface weight: 5.7 kg/m²
Flow resistance: 55 Rayl
Mounting: cross-battening 24/48 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.65
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.45 | 0.85 | 0.65 | 0.65 | 0.60 |
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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 | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 19 mm · 5,7 kg / m^2 · 50 mm · Montiert on Kreuzlattung 24/48 mm, Air cavity 50 mm, horizontaler Abstand 800 mm, vertikaler Abstand 625 mm, Ränder der Prüffläche seitlich geschlossen | 0.65 | 0.08 | 0.12 | 0.19 | 0.26 | 0.42 | 0.60 | 0.80 | 0.86 | 0.83 | 0.73 | 0.67 | 0.60 | 0.58 | 0.65 | 0.72 | 0.70 | 0.56 | 0.57 | 0.67 |
Measured values as a table (1 measurement)
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