WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
MAkustik MA10 honeycomb sandwich panel, spacing 0 mm
Type 2/6 – Makustik MA10 Sandwichplatte mit Wabenkern
PTB reference data
Original description
MAkustik MA10 honeycomb sandwich panel, spacing 0 mm
Material properties
Manufacturer: MAkustik
Thickness: 1.9 in
Wall distance: 0 in
Perforation: 7%
Hole size: 0.1 in
Backing: Acoustic non-woven, 1.2 in mineral wool
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.90
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.65 | 1.00 | 0.90 | 1.00 | 0.50 |
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Value from the PTB table, not verified
NRC: 0.90 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 49 mm · 0 | 0.90 | 0.09 | 0.12 | 0.22 | 0.39 | 0.63 | 0.86 | 1.04 | 1.13 | 1.08 | 0.89 | 0.87 | 0.91 | 0.97 | 1.00 | 0.97 | 0.76 | 0.42 | 0.25 |
Measured values as a table (1 measurement)
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