Mineral wool
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Value from the PTB table, not verified
USG Acoustone Chex/16 foil-backed panels
Acoustone Chex/16
PTB reference data
Original description
USG Acoustone Chex/16 foil-backed panels
Material properties
Manufacturer: USG Interiors
Thickness: 3/4 inch
Wall distance: 16 in
Backing: Foil-backed
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 2 variants
NRC
0.65
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.30 | 0.65 | 0.80 | 0.85 | 0.90 |
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| Compare | Value |
|---|---|
| NRC0.65 | |
| NRC0.75 |
NRC: 0.65 (derived from ISO 354 lab data)
Weight / density: 1.3 lb/ft²
Dimensions: 24 x 24 inches
Distance: 16 in
Measured values as a table (2 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 3/4 inch · 1.3 lb/ft² · 400 mm | 0.65 | 0.22 | 0.29 | 0.66 | 0.80 | 0.83 | 0.89 |
| 3/4 inch · 1.3 lb/ft² · 400 mm | 0.75 | 0.37 | 0.33 | 0.61 | 1.00 | 0.96 | 1.03 |
Measured values as a table (2 measurements)
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