OtherHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Dalenbäck, Datensatz der CATT-Software, November 2000. Data-Category in CATT: MINERALWOOL3, C: Ceilings, D: 100
Value from the PTB table, not verified
Ceilings, 100 mm thick, against ceiling
PTB reference data
Original description
Ceilings, 100 mm thick, against ceiling
Material properties
Thickness: 100 mm
Application: ceiling
Mounting: mounted directly on ceiling
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.95
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.60 | 0.70 | 0.95 | 0.95 | 1.00 | 0.90 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| Measurement 1 | 0.95 | 0.58 | 0.69 | 0.96 | 0.97 | 0.99 | 0.91 |
Measured values as a table (1 measurement)
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