Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 260
Value from the PTB table, not verified
Rheinhold & Mahla Basalan high-temperature insulation board BPO-HT 120
Basalan high-temperature insulation board – BPO-HT 120
PTB reference data
Original description
Rheinhold & Mahla Basalan high-temperature insulation board BPO-HT 120
Material properties
Manufacturer: Rheinhold & Mahla AG
Thickness: 30 mm, 50 mm
Up to fire class: non-combustible
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.95
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.30 | 0.65 | 1.00 | 1.00 | 1.00 | 0.95 |
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| Compare | Value | |
|---|---|---|
| 50 mm | αw0.95 | |
| 30 mm | αw0.65 |
Dimensions: 1000 x 500 mm, 1000 x 625 mm
Measured values as a table (2 measurements)
| Build-up | αw | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 mm | 0.65 | 0.15 | 0.20 | 0.25 | 0.32 | 0.46 | 0.62 | 0.80 | 0.83 | 0.86 | 0.90 | 0.92 | 0.95 | 0.97 | 0.99 | 1.01 | 1.02 |
| 50 mm | 0.95 | 0.20 | 0.38 | 0.52 | 0.65 | 0.80 | 0.91 | 1.03 | 1.03 | 1.04 | 1.05 | 1.04 | 1.03 | 1.02 | 1.00 | 0.97 | 0.95 |
Measured values as a table (2 measurements)
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