FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer's product sheet
Value from the PTB table, not verified
pinta acoustic WETROOM melamine foam absorber
Absorber WETROOM
PTB reference data
Original description
pinta acoustic WETROOM melamine foam absorber
Material properties
Manufacturer: pinta acoustic gmbh
Thickness: 2 in
Wall distance: RMA 400 / 1400, RMA 600 / 1400, RMA 720 / 1400, 12 in
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 4 variants
NRC
0.90
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.25 | 0.65 | 1.00 | 1.00 | 1.00 | 1.00 |
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| Compare | Value | |
|---|---|---|
| RMA 400 / 1400 | NRC0.90 | |
| 12 in | NRC0.95 | |
| RMA 600 / 1400 | NRC0.90 | |
| RMA 720 / 1400 | NRC0.80 |
NRC: 0.90 (derived from ISO 354 lab data)
Weight / density: 9,5±1,5 kg/m³
Dimensions: 1200 x 24 in
Measured values as a table (4 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 50 mm · 9,5±1,5 kg/m³ · RMA 400 / 1400 | 0.90 | 0.25 | 0.65 | 1.00 | 1.00 | 1.00 | 1.00 |
| 50 mm · 9,5±1,5 kg/m³ · RMA 600 / 1400 | 0.90 | 0.20 | 0.50 | 1.00 | 1.00 | 1.00 | 0.70 |
| 50 mm · 9,5±1,5 kg/m³ · RMA 720 / 1400 | 0.80 | 0.15 | 0.40 | 0.85 | 1.00 | 0.95 | 0.60 |
| 50 mm · 9,5±1,5 kg/m³ · 300 mm | 0.95 | 0.40 | 0.90 | 0.85 | 1.00 | 1.00 | 1.00 |
Measured values as a table (4 measurements)
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