Mineral woolHigh-frequency absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 137
Value from the PTB table, not verified
Isover Dämmfilz FK-KV, mineral fiber, non-combustible
Isover Dämmfilz – FK-KV
PTB reference data
Original description
Isover Dämmfilz FK-KV, mineral fiber, non-combustible
Material properties
Manufacturer: Saint-Gobain Isover G+H AG
Thickness: 0.8 in
Wall distance: 0 in, 2 in
Backing: glass veil
Up to fire class: non-combustible
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.75
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.45 | 0.70 | 0.90 | 0.95 | 1.00 |
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| Compare | Value | |
|---|---|---|
| 2 in | NRC0.75 | |
| 0 | NRC0.60 |
NRC: 0.75 (derived from ISO 354 lab data)
Weight / density: ca. 25 kg / m³
Dimensions: 1200 x 394 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 mm · ca. 25 kg / m³ · 0 | 0.60 | 0.12 | 0.16 | 0.20 | 0.25 | 0.32 | 0.40 | 0.48 | 0.56 | 0.61 | 0.72 | 0.79 | 0.83 | 0.96 | 0.99 | 1.00 | 1.04 |
| 20 mm · ca. 25 kg / m³ · 50 mm | 0.75 | 0.18 | 0.25 | 0.36 | 0.43 | 0.52 | 0.60 | 0.71 | 0.79 | 0.84 | 0.96 | 0.96 | 0.95 | 0.95 | 0.99 | 1.00 | 1.08 |
Measured values as a table (2 measurements)
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