OtherHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: MINERALWOOL1, C: Ceilings, D: 25
Ceilings, 25 mm thick, against ceiling
PTB reference data
Original description
Ceilings, 25 mm thick, against ceiling
Material properties
Thickness: 25 mm
Mounting: against ceiling
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.58
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.20 | 0.60 | 0.85 | 0.85 | 0.90 |
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Method (354): Measured