TextileHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 a 5-3
Plush, chenille, cotton, gathered
PTB reference data
Original description
Plush, chenille, cotton, gathered
Material properties
Wall distance: 200 mm
Surface weight: 0.417 kg/m²
Flow resistance: 45 Rayl
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.84
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.55 | 0.90 | 1.00 | 1.05 | 1.10 |
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Method (354): Measured