Mineral woolHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 176
Idikell fiber absorber Type B 201
Idikell – Type B 201
PTB reference data
Original description
Idikell fiber absorber Type B 201
Material properties
Manufacturer: Siegfried Keller AG
Thickness: 45 mm
Wall distance: 0 mm, 100 mm, 300 mm
Surface: porous fabric covering
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 3 variants
αw
0.64
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.70 | 0.60 | 0.65 | 0.75 | 0.65 |
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| Compare | Value | |
|---|---|---|
| 300 mm, without absorbierende Zwischenlage | αw0.64 | |
| 100 mm, without absorbierende Zwischenlage | αw0.54 | |
| 0, without absorbierende Zwischenlage | αw0.45 |
Weight / density: ca. 1,2 kg / m²
Dimensions: 600 x 600 x 45 mm