Resin-bonded mineral fiber panel (DNA 1968, a3.2-3)
NRC 0.90
PTB reference data
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Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a3.2-3
Value from the PTB table, not verified
Original description
Resin-bonded mineral fiber panel (DNA 1968, a3.2-3)
Material properties
Thickness: 2 in
Density: 6.2 lb/ft³
Flow resistance: 2.2 kPa·s/m
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.90
derived from ISO 354 lab data
Frequency values
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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 | 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 | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 in · 67 lb/ft^3 | 0.90 | 0.10 | 0.29 | 0.39 | 0.49 | 0.58 | 0.80 | 0.97 | 1.03 | 1.02 | 1.04 | 1.05 | 1.03 | 1.01 | 1.03 | 1.01 | 0.98 | 0.97 | 0.98 | 0.93 |
Measured values as a table (1 measurement)
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