FabricHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Ursprüngliche Quelle: Fasold / Winkler Raumakustik, Diff. geschätzt, Ergänzung PTB. Data-Category in CATT: VORHANG_OFFEN, C: Walls, D: Baumwollplüsch
Value from the PTB table, not verified
Cotton plush "Malta", folded and gathered
PTB reference data
Original description
Cotton plush "Malta", folded and gathered
Material properties
Wall distance: 220 mm
Application: wall
Mounting: hanging folded, triple-gathered
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.85
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.55 | 0.90 | 1.00 | 1.00 | 1.00 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| Measurement 1 | 0.85 | 0.07 | 0.56 | 0.92 | 0.99 | 0.99 | 0.99 |
Measured values as a table (1 measurement)
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