GypsumHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 212
Value from the PTB table, not verified
Maibach M 200 TS fiber absorber in gypsum board cassette
Maibach – M 200 TS
PTB reference data
Original description
Maibach M 200 TS fiber absorber in gypsum board cassette
Material properties
Manufacturer: Maibach Industrie Plastic Gesellschaft
Thickness: 142 mm
Perforation: 40%
Backing: 25 mm mineral fiber panel
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.90
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.75 | 0.85 | 0.90 | 0.90 | 0.90 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 142 mm · 16,2 kg / m³ | 0.90 | 0.20 | 0.35 | 0.65 | 0.68 | 0.75 | 0.81 | 0.82 | 0.88 | 0.89 | 0.93 | 0.90 | 0.90 | 0.91 | 0.92 | 0.92 | 0.92 | 0.92 | 0.92 | 0.82 |
Measured values as a table (1 measurement)
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