Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 256
Value from the PTB table, not verified
Thyssen Egi-EP/VII mineral fiber insulation board
Egi insulation board – EP/VII
PTB reference data
Original description
Thyssen Egi-EP/VII mineral fiber insulation board
Material properties
Manufacturer: Thyssen Schalker Verein GmbH
Thickness: 2 in
Wall distance: 0 in, 2 in
Up to fire class: non-combustible
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
1.00
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 0.90 | 1.00 | 1.00 | 1.00 | 1.00 |
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| Compare | Value | |
|---|---|---|
| 2 in | NRC1.00 | |
| 0 | NRC0.90 |
NRC: 1.00 (derived from ISO 354 lab data)
Dimensions: 600 x 49 in
Measured values as a table (2 measurements)
| Build-up | NRC | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 mm · 0 | 0.90 | 0.13 | 0.27 | 0.43 | 0.63 | 0.78 | 0.90 | 1.03 | 1.00 | 0.98 | 0.97 | 0.97 | 0.97 | 0.97 | 0.97 | 0.98 | 0.98 |
| 50 mm · 50 mm | 1.00 | 0.46 | 0.60 | 0.78 | 0.94 | 0.99 | 1.02 | 1.06 | 1.03 | 1.01 | 1.00 | 1.00 | 0.99 | 0.99 | 1.00 | 1.01 | 1.02 |
Measured values as a table (2 measurements)
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