Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 a 7-4
Value from the PTB table, not verified
Honeycomb construction made of mineral fiber panels
PTB reference data
Original description
Honeycomb construction made of mineral fiber panels
Material properties
Thickness: 7.9 in, 0.7 in
Wall distance: 7.9 in
Dimensions: 500 × 20 in
Backing: non-woven faced on both sides
Surface: white spray-painted
Mounting: arranged perpendicular to the wall
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.55
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|
| αp | 0.25 | 0.30 | 0.75 | 0.85 | 0.85 |
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Value from the PTB table, not verified
NRC: 0.55 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 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 | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 200 mm, 18 mm · 200 mm · Struktur from vertical zur Wand angebrachten panels · vlieskaschiert, white gespritzt | 0.55 | 0.20 | 0.23 | 0.25 | 0.22 | 0.20 | 0.34 | 0.35 | 0.70 | 0.71 | 0.77 | 0.82 | 0.87 | 0.82 | 0.85 | 0.82 | 0.82 | 0.65 |
Measured values as a table (1 measurement)
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