Baffle ceiling LMD-L
Ceiling
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Manufacturer
Lindner Group
Lindner Group, Arnstorf: metal ceilings, heating and cooling ceilings, raised floors, wall and ceiling linings and the MUTE+ sound absorber line.
Description
Open metal baffle ceiling of galvanised sheet steel. Slat width, slat height and axis spacing determine the absorption together with acoustic fleece and insert. Recycled content 24 percent.
Technical data
Material: Galvanised steel sheet
Surface: Powder coating COLOURline, ARTline décor, MOODline deep matt (LMD-L 608)
Fire class (EN 13501-1): A2-s1,d0
Certifications: CE per EN 13964, EPD per EN 15804, TAIM Technical Manual for Metal Ceilings, VOC emission class A+, Indoor Air Comfort Gold, Oeko-Tex Standard 100 (Acustica acoustic insert)
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 22 variants
NRC
—
No NRC for arrays (ASTM C423)
Frequency values
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| Compare | Value | |||
|---|---|---|---|---|
| Rv 2.0 - 20 | 9.7 in | Slat 9.6 x 1.2 in, axis spacing 12 in | — | |
| Rv 2.0 - 20 | 9.7 in | Slat 9.6 x 1.2 in, axis spacing 24 in | — | |
| Rv 2.0 - 20 | 9.7 in | Slat 9.6 x 1.4 in, axis spacing 12 in | — | |
| Rv 2.0 - 20 | 9.7 in | Slat 9.6 x 1.4 in, axis spacing 24 in | — | |
| Rv 2.0 - 20 | 9.7 in | Slat 9.6 x 2.2 in, axis spacing 24 in | — | |
| Rv 1.8 - 20 | 7.1 in | Slat 5.9 x 1.4 in, axis spacing 7.9 in | — | |
| Rv 1.8 - 20 | 12 in | Slat 12 x 2 in, axis spacing 7.9 in | — | |
| Rv 1.8 - 20 | 12 in | Slat 12 x 1.4 in, axis spacing 12 in | — | |
| Rv 1.8 - 20 | 12 in | Slat 12 x 2.2 in, axis spacing 7.9 in | — | |
| Rv 1.8 - 20 | 12 in | Slat 12 x 2.2 in, axis spacing 12 in | — | |
| Rv 2.0 - 20 | 20 in | Slat 20 x 3.9 in, axis spacing 30 in | — | |
| Rv 2.0 - 20 | 20 in | Slat 20 x 3.9 in, axis spacing 20 in | — | |
| Rv 2.0 - 20 | 20 in | Slat 20 x 3.1 in, axis spacing 30 in | — | |
| Rv 2.0 - 20 | 20 in | Slat 20 x 3.1 in, axis spacing 20 in | — | |
| Rv 1.8 - 20 | 12 in | Slat 12 x 1.4 in, axis spacing 7.9 in | — | |
| Rv 2.0 - 20 | 9.7 in | Slat 9.6 x 2.2 in, axis spacing 12 in | — | |
| Rv 2.0 - 20 | 7.9 in | Slat 7.9 x 1.6 in, axis spacing 24 in | — | |
| Rv 2.0 - 20 | 7.9 in | Slat 7.9 x 1.6 in, axis spacing 12 in | — | |
| Rv 2.0 - 20 | 7.9 in | Slat 7.9 x 1.6 in, axis spacing 7.9 in | — | |
| Rv 2.0 - 20 | 12 in | Slat 12 x 1.6 in, axis spacing 24 in | — | |
| Rv 2.0 - 20 | 12 in | Slat 12 x 1.6 in, axis spacing 12 in | — | |
| Rv 2.0 - 20 | 12 in | Slat 12 x 1.6 in, axis spacing 7.9 in | — |
Test report: M67309/3 (Variante A)
Test setup: Slat 9.6 x 1.2 in, axis spacing 12 in
Measured values as a table (22 measurements)
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rv 2.0 - 20 · 9.7 in · Slat 9.6 x 1.2 in, axis spacing 12 in | – | 0.10 | 0.26 | 0.32 | 0.32 | 0.40 | 0.40 | 0.40 | 0.39 | 0.44 | 0.49 | 0.59 | 0.65 | 0.70 | 0.72 | 0.69 | 0.68 | 0.69 | 0.69 |
| Rv 2.0 - 20 · 9.7 in · Slat 9.6 x 1.2 in, axis spacing 24 in | – | 0.07 | 0.20 | 0.22 | 0.25 | 0.34 | 0.36 | 0.33 | 0.33 | 0.34 | 0.35 | 0.40 | 0.43 | 0.48 | 0.48 | 0.48 | 0.48 | 0.50 | 0.51 |
| Rv 2.0 - 20 · 9.7 in · Slat 9.6 x 1.4 in, axis spacing 12 in | – | 0.04 | 0.22 | 0.39 | 0.50 | 0.47 | 0.46 | 0.42 | 0.39 | 0.48 | 0.60 | 0.73 | 0.75 | 0.77 | 0.75 | 0.73 | 0.71 | 0.69 | 0.67 |
| Rv 2.0 - 20 · 9.7 in · Slat 9.6 x 1.4 in, axis spacing 24 in | – | 0.04 | 0.15 | 0.27 | 0.40 | 0.41 | 0.42 | 0.40 | 0.36 | 0.43 | 0.46 | 0.52 | 0.54 | 0.54 | 0.54 | 0.52 | 0.51 | 0.48 | 0.47 |
| Rv 2.0 - 20 · 9.7 in · Slat 9.6 x 2.2 in, axis spacing 24 in | – | 0.06 | 0.24 | 0.36 | 0.49 | 0.50 | 0.51 | 0.49 | 0.46 | 0.48 | 0.51 | 0.55 | 0.53 | 0.54 | 0.50 | 0.47 | 0.43 | 0.39 | 0.37 |
| Rv 1.8 - 20 · 7.1 in · Slat 5.9 x 1.4 in, axis spacing 7.9 in | – | 0.07 | 0.12 | 0.33 | 0.49 | 0.50 | 0.61 | 0.59 | 0.52 | 0.49 | 0.50 | 0.56 | 0.68 | 0.76 | 0.71 | 0.75 | 0.70 | 0.67 | 0.64 |
| Rv 1.8 - 20 · 12 in · Slat 12 x 2 in, axis spacing 7.9 in | – | 0.27 | 0.40 | 0.55 | 0.49 | 0.48 | 0.44 | 0.44 | 0.56 | 0.76 | 0.90 | 0.82 | 0.89 | 0.86 | 0.80 | 0.80 | 0.79 | 0.78 | 0.75 |
| Rv 1.8 - 20 · 12 in · Slat 12 x 1.4 in, axis spacing 12 in | – | 0.15 | 0.16 | 0.27 | 0.35 | 0.37 | 0.31 | 0.26 | 0.32 | 0.46 | 0.58 | 0.62 | 0.67 | 0.74 | 0.75 | 0.76 | 0.77 | 0.79 | 0.82 |
| Rv 1.8 - 20 · 12 in · Slat 12 x 2.2 in, axis spacing 7.9 in | – | 0.21 | 0.52 | 0.84 | 0.60 | 0.57 | 0.47 | 0.43 | 0.55 | 0.76 | 0.86 | 0.76 | 0.84 | 0.82 | 0.80 | 0.78 | 0.78 | 0.78 | 0.76 |
| Rv 1.8 - 20 · 12 in · Slat 12 x 2.2 in, axis spacing 12 in | – | 0.25 | 0.30 | 0.53 | 0.62 | 0.58 | 0.40 | 0.38 | 0.46 | 0.66 | 0.78 | 0.82 | 0.79 | 0.82 | 0.79 | 0.77 | 0.71 | 0.67 | 0.55 |
| Rv 2.0 - 20 · 20 in · Slat 20 x 3.9 in, axis spacing 30 in | – | 0.56 | 0.52 | 0.55 | 0.35 | 0.39 | 0.59 | 0.67 | 0.78 | 0.76 | 0.77 | 0.72 | 0.70 | 0.64 | 0.64 | 0.66 | 0.67 | 0.71 | 0.79 |
| Rv 2.0 - 20 · 20 in · Slat 20 x 3.9 in, axis spacing 20 in | – | 0.72 | 0.57 | 0.54 | 0.37 | 0.48 | 0.59 | 0.77 | 0.93 | 0.87 | 0.85 | 0.86 | 0.78 | 0.75 | 0.71 | 0.72 | 0.70 | 0.69 | 0.64 |
| Rv 2.0 - 20 · 20 in · Slat 20 x 3.1 in, axis spacing 30 in | – | 0.47 | 0.43 | 0.50 | 0.32 | 0.38 | 0.52 | 0.62 | 0.74 | 0.76 | 0.77 | 0.76 | 0.69 | 0.68 | 0.66 | 0.63 | 0.61 | 0.58 | 0.61 |
| Rv 2.0 - 20 · 20 in · Slat 20 x 3.1 in, axis spacing 20 in | – | 0.64 | 0.53 | 0.54 | 0.37 | 0.45 | 0.57 | 0.72 | 0.85 | 0.84 | 0.86 | 0.87 | 0.83 | 0.78 | 0.73 | 0.72 | 0.70 | 0.67 | 0.70 |
| Rv 1.8 - 20 · 12 in · Slat 12 x 1.4 in, axis spacing 7.9 in | – | 0.21 | 0.21 | 0.41 | 0.44 | 0.42 | 0.39 | 0.34 | 0.41 | 0.56 | 0.70 | 0.69 | 0.79 | 0.78 | 0.78 | 0.84 | 0.84 | 0.84 | 0.84 |
| Rv 2.0 - 20 · 9.7 in · Slat 9.6 x 2.2 in, axis spacing 12 in | – | 0.10 | 0.36 | 0.53 | 0.62 | 0.60 | 0.59 | 0.56 | 0.52 | 0.56 | 0.66 | 0.78 | 0.75 | 0.74 | 0.68 | 0.65 | 0.61 | 0.59 | 0.51 |
| Rv 2.0 - 20 · 7.9 in · Slat 7.9 x 1.6 in, axis spacing 24 in | – | – | 0.10 | 0.22 | 0.33 | 0.37 | 0.46 | 0.44 | 0.42 | 0.45 | 0.46 | 0.48 | 0.55 | 0.53 | 0.51 | 0.51 | 0.50 | 0.48 | 0.47 |
| Rv 2.0 - 20 · 7.9 in · Slat 7.9 x 1.6 in, axis spacing 12 in | – | – | 0.13 | 0.33 | 0.46 | 0.47 | 0.56 | 0.54 | 0.49 | 0.50 | 0.53 | 0.60 | 0.75 | 0.72 | 0.73 | 0.73 | 0.69 | 0.67 | 0.67 |
| Rv 2.0 - 20 · 7.9 in · Slat 7.9 x 1.6 in, axis spacing 7.9 in | – | 0.11 | 0.17 | 0.41 | 0.54 | 0.51 | 0.61 | 0.58 | 0.51 | 0.49 | 0.54 | 0.72 | 0.84 | 0.81 | 0.79 | 0.82 | 0.80 | 0.78 | 0.73 |
| Rv 2.0 - 20 · 12 in · Slat 12 x 1.6 in, axis spacing 24 in | – | 0.13 | 0.20 | 0.43 | 0.49 | 0.49 | 0.49 | 0.46 | 0.43 | 0.50 | 0.62 | 0.66 | 0.69 | 0.73 | 0.68 | 0.67 | 0.67 | 0.65 | 0.60 |
| Rv 2.0 - 20 · 12 in · Slat 12 x 1.6 in, axis spacing 12 in | – | 0.17 | 0.27 | 0.55 | 0.54 | 0.53 | 0.46 | 0.45 | 0.51 | 0.65 | 0.79 | 0.85 | 0.87 | 0.91 | 0.87 | 0.89 | 0.90 | 0.85 | 0.81 |
| Rv 2.0 - 20 · 12 in · Slat 12 x 1.6 in, axis spacing 7.9 in | – | 0.20 | 0.35 | 0.63 | 0.58 | 0.57 | 0.48 | 0.48 | 0.57 | 0.74 | 0.93 | 0.90 | 0.94 | 0.96 | 0.93 | 0.94 | 0.93 | 0.91 | 0.88 |
Measured values as a table (22 measurements)
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