TextileHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 a 6-1
Carpet, loop pile, impregnated base fabric, 4.5 mm, 1.87 kg/m², 820 Rayl
PTB reference data
Original description
Carpet, loop pile, impregnated base fabric, 4.5 mm, 1.87 kg/m², 820 Rayl
Material properties
Thickness: 4.5 mm
Surface weight: 1.87 kg/m²
Flow resistance: 820 Rayl
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.15
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.00 | 0.00 | 0.05 | 0.20 | 0.35 | 0.35 |
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Method (354): Measured