MetalHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer's product sheet
Value from the PTB table, not verified
pinta acoustic QUADROLINE expanded metal ceiling with PLANO A2, thickness 15 mm
QUADROLINE
PTB reference data
Original description
pinta acoustic QUADROLINE expanded metal ceiling with PLANO A2, thickness 15 mm
Material properties
Manufacturer: pinta acoustic gmbh
Thickness: 0.6 in
Wall distance: 3.9 in, 7.9 in, 12 in, 20 in
Application: ceiling
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 4 variants
NRC
0.55
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.40 | 0.55 | 0.55 | 0.65 | 0.65 |
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| Compare | Value | |
|---|---|---|
| 7.9 in | NRC0.55 | |
| 12 in | NRC0.60 | |
| 20 in | NRC0.55 | |
| 3.9 in | NRC0.50 |
NRC: 0.55 (derived from ISO 354 lab data)
Weight / density: 3,3 - 4,9 kg/m²
Dimensions: variabel
Measured values as a table (4 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 15 mm · 3,3 - 4,9 kg/m² · 100 mm | 0.50 | 0.15 | 0.25 | 0.50 | 0.65 | 0.60 | 0.65 |
| 15 mm · 3,3 - 4,9 kg/m² · 200 mm | 0.55 | 0.20 | 0.40 | 0.55 | 0.55 | 0.65 | 0.65 |
| 15 mm · 3,3 - 4,9 kg/m² · 300 mm | 0.60 | 0.25 | 0.45 | 0.55 | 0.60 | 0.70 | 0.65 |
| 15 mm · 3,3 - 4,9 kg/m² · 500 mm | 0.55 | 0.40 | 0.45 | 0.50 | 0.60 | 0.70 | 0.70 |
Measured values as a table (4 measurements)
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