Mineral woolBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 68
Value from the PTB table, not verified
AMF-Thermatex mineral fiber panel, regularly perforated
regularly perforated
PTB reference data
Original description
AMF-Thermatex mineral fiber panel, regularly perforated
Material properties
Manufacturer: AMF - Mineralplatten GmbH Betriebs KG
Thickness: 20 mm
Wall distance: 400 mm
Dimensions: 300 × 300 mm to 1250 × 1250 mm
Surface weight: 7.4 kg/m²
Perforation: perforated
Hole size: 4 mm
Backing: material bound
Up to fire class: fire-resistant
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.60
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.50 | 0.40 | 0.55 | 0.80 | 1.00 | 0.85 |
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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 mm · 7,4 kg / m² · 400 mm | 0.60 | 0.55 | 0.48 | 0.42 | 0.42 | 0.42 | 0.43 | 0.48 | 0.53 | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | 1.02 | 0.93 | 0.90 | 0.88 | 0.75 |
Measured values as a table (1 measurement)
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