FabricHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data online at www.creationbaumann.com
Value from the PTB table, not verified
Création Baumann ULTRA 98 curtain fabric
ULTRA 98
PTB reference data
Original description
Création Baumann ULTRA 98 curtain fabric
Material properties
Manufacturer: Création Baumann
Wall distance: 15 cm
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.70
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.40 | 0.80 | 0.95 | 1.00 | 1.00 |
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| Compare | Value |
|---|---|
| αw0.70 | |
| αw0.55 |
Application: Akustik-Stoff
Distance: 15 cm mittlerer wall standoff
Measured values as a table (2 measurements)
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 cm mittlerer wall standoff · Akustik-Stoff · Faltung 100 % | 0.70 | 0.08 | 0.09 | 0.13 | 0.21 | 0.35 | 0.57 | 0.71 | 0.82 | 0.83 | 0.93 | 0.95 | 0.98 | 0.99 | 1.01 | 0.98 | 0.99 | 1.02 | 0.98 |
| 15 cm mittlerer wall standoff · Akustik-Stoff · flach | 0.55 | 0.01 | 0.04 | 0.06 | 0.12 | 0.22 | 0.34 | 0.51 | 0.58 | 0.59 | 0.59 | 0.61 | 0.65 | 0.71 | 0.72 | 0.76 | 0.76 | 0.78 | 0.79 |
Measured values as a table (2 measurements)
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