Mineral woolLow-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktblatt des Herstellers
renz VPR Type 1 compound panel resonator
VPR – Type 1
PTB reference data
Original description
renz VPR Type 1 compound panel resonator
Material properties
Manufacturer: renz GmbH System-Komplett-Ausbau
Thickness: 100 mm
Backing: polyester, viscose or mineral damping materials
Surface: perforated metal sheet
Mounting: perforated metal sheet, non-woven, vibrating plate, damper
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.55
Frequency values
αp per ISO 11654
| f (Hz) | 63 | 125 | 250 | 500 | 1k | 2k |
|---|---|---|---|---|---|---|
| αp | 0.95 | 1.00 | 0.85 | 0.60 | 0.35 | 0.25 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value |
|---|---|
| αw0.55 | |
| αw0.45 |
Dimensions: 1500 x 1000 mm