FeltHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data manufacturer
Value from the PTB table, not verified
Poliprent T polyester mat
Poliprent T
PTB reference data
Original description
Poliprent T polyester mat
Material properties
Manufacturer: Soldini-Sudacciai SA
Thickness: 20 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.65
Frequency values
αp nach ISO 11654
| f (Hz) | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|
| αp | 0.40 | 0.65 | 1.00 | 0.95 | 0.95 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|
| 20 mm · 100 kg/m^3 | 0.65 | 0.40 | 0.63 | 0.98 | 0.93 | 0.97 |
Measured values as a table (1 measurement)
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