PlasticBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktblatt des Herstellers
Kaefer Microsorber micro-perforated polycarbonate foil
Microsorber
PTB reference data
Original description
Kaefer Microsorber micro-perforated polycarbonate foil
Material properties
Manufacturer: Kaefer Isoliertechnik
Thickness: 0.105 mm
Wall distance: 30 mm, 50 mm, 100 mm
Hole size: 0.21 mm
Up to fire class: not easily flammable, building material class B1
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 5 variants
αw
0.54
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.40 | 0.75 | 0.65 | 0.75 | 0.60 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | |
|---|---|---|
| 100 mm | αw0.54 | |
| 50 mm | αw0.49 | |
| 100 mm | αw0.36 | |
| 50 mm | αw0.30 | |
| 30 mm | αw0.25 |
Weight / density: 0,14 kg / m"
Dimensions: width: 1000 and 1200 mm