Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 229
Rigiphon Alphalite volcanic stone ceiling tile
Rigiphon Alphalite ceiling tile
PTB reference data
Original description
Rigiphon Alphalite volcanic stone ceiling tile
Material properties
Manufacturer: Richter System GmbH & Co KG
Thickness: 23 mm
Up to fire class: non-combustible
Application: ceiling
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.46
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.10 | 0.25 | 0.50 | 0.60 | 0.60 | 0.70 |
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Method (354): Measured