Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Value from the PTB table, not verified
Isover PB A fiberglass panel
PB A
PTB reference data
Original description
Isover PB A fiberglass panel
Material properties
Manufacturer: Isover AG
Thickness: 50 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.40
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.75 | 0.65 | 0.60 | 0.40 | 0.25 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 50 mm · 2.5 lb/ft² | 0.40 | 0.59 | 0.75 | 0.63 | 0.60 | 0.39 | 0.26 |
Measured values as a table (1 measurement)
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