WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
MAkustik MA10 sandwich panel Type 1.3/5 with mineral wool, spacing 350 mm
Type 1.3/5 – Makustik MA10 sandwich panel with frame
PTB reference data
Original description
MAkustik MA10 sandwich panel Type 1.3/5 with mineral wool, spacing 350 mm
Material properties
Manufacturer: MAkustik
Thickness: 0.7 in
Wall distance: 14 in
Perforation: 5%
Hole size: 0.1 in
Backing: 0.6 in mineral wool
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.65
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.45 | 0.70 | 0.65 | 0.75 | 0.70 | 0.40 |
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Value from the PTB table, not verified
NRC: 0.65 (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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 19 mm · 350 mm | 0.65 | 0.41 | 0.58 | 0.43 | 0.70 | 0.69 | 0.68 | 0.69 | 0.60 | 0.67 | 0.72 | 0.72 | 0.79 | 0.78 | 0.66 | 0.62 | 0.49 | 0.37 | 0.31 |
Measured values as a table (1 measurement)
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