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, 1.27 cm mineral fiber on metal lath, 2.54 cm airspace
PTB reference data
Original description
Mineral spray-on materials, 1.27 cm mineral fiber on metal lath, 2.54 cm airspace
Material properties
Thickness: 12.7 mm
Wall distance: 25.4 mm
Mounting: on metal lath
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.70
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.50 | 0.80 | 0.90 | 0.90 | 0.85 |
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Method (354): Measured
