Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Harris:Handbook of Acoustical Measurements and Noise Control, McGraw Hill 1991
Mineral spray-on materials, 2.5 cm mineral fiber
PTB reference data
Original description
Mineral spray-on materials, 2.5 cm mineral fiber
Material properties
Thickness: 25 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.66
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.45 | 0.70 | 0.90 | 0.90 | 0.85 |
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Method (354): Measured
