FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer's product sheet
Value from the PTB table, not verified
pinta acoustic Waffel Dämm, melamine foam with heavy layer
Waffel Dämm – 65/125
PTB reference data
Original description
pinta acoustic Waffel Dämm, melamine foam with heavy layer
Material properties
Manufacturer: pinta acoustic gmbh
Thickness: 2.6 in, 4.9 in
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 | 0.25 | 0.75 | 0.95 | 0.95 | 0.95 | 0.95 |
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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 | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 65/125 mm · 9,5±1,5 kg/m³ | 0.90 | 0.25 | 0.75 | 0.95 | 0.95 | 0.95 | 0.95 |
Measured values as a table (1 measurement)
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