Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a3.2-5
Value from the PTB table, not verified
Mineral fiber panel, resin-bonded, thickness 20 mm
PTB reference data
Original description
Mineral fiber panel, resin-bonded, thickness 20 mm
Material properties
Thickness: 20 mm
Surface weight: 2.82 kg/m²
Density: 150 kg/m³
Flow resistance: 5.08 kPa·s/m²
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.45
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.05 | 0.15 | 0.50 | 0.80 | 0.95 | 1.00 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 mm · 150 kg/m^3, 2,82 kg/m^2 | 0.45 | 0.00 | 0.06 | 0.05 | 0.06 | 0.10 | 0.25 | 0.35 | 0.51 | 0.65 | 0.78 | 0.78 | 0.88 | 0.92 | 0.98 | 0.95 | 1.00 | 1.00 | 0.95 | 0.88 |
Measured values as a table (1 measurement)
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