Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Harris:Handbook of Acoustical Measurements and Noise Control, McGraw Hill 1991
Fiberglass boards and blankets, 2.54 cm glass wool, 2.54 cm airspace
PTB reference data
Original description
Fiberglass boards and blankets, 2.54 cm glass wool, 2.54 cm airspace
Material properties
Thickness: 25.4 mm
Wall distance: 25.4 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.68
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.55 | 0.80 | 0.90 | 0.85 | 0.80 |
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Method (354): Measured