Technical Characteristics
The document outlines the technical specifications for the Linea range, focusing on acoustic results and installation methods. Acoustic absorption data, including coefficients and classes, are calculated according to ISO 11654 standards. The fitting system for ceilings involves installation on a T24 grid system or by screwing, adhering to NF EN 13964 and DTU 58-1 standards. Wall installations require mechanical fixing by screwing, following DTU 36-2 and NF EN 14915 standards.

Acoustic Results
Acoustic absorption coefficients are provided for different frequencies, with weighted indices of αw = 0.85 (Class B) and αw = 0.90 (Class A). Measurements are conducted as per ISO 354 standards.

Installation Details
For ceiling installations, the Linea 2.4.5 with LR 20 mm on plenum E250 mm is used, with panel dimensions of 1,880 x 600 mm and 1,265 x 600 mm. Wall installations use Linea 2.4.5 with LR 20 mm on plenum E50 mm. The cross-section of slats is 20 mm (face) x 42 mm (height), with a spacing of 55 mm and a centre distance of 75 mm. Black rear counter-slats measure 34 x 45 mm, and the overall thickness is 69 mm.

Material and Finish
The wood species used include pine, oak, douglas fir, and silver fir, with surface masses of 9.9 kg/m² for pine, 11.6 kg/m² for oak, and 9.6 kg/m² for douglas fir. The openness percentage is 73%. Reaction to fire is classified as Euroclass B-s1,d0 or B-s2,d0, depending on species and finishes, as per EN 13501-1 standards.