Partitioning made up of a self-supporting galvanised steel framework consisting of a 73 mm perimeter structure on a TECSOUND® S50 BAND 50 damping strip and a 70 mm vertical structure (upright) placed every 600 mm, on which 12 mm chipboard panels will be screwed on both sides with a self-adhesive synthetic acoustic insulation sheet with a polymeric base without asphalt of 2,000 Kg/m3 density, 5 Kg/m2 and 2.5 mm thickness type TECSOUND® SY 50 between panels; placement of absorbent material such as mineral wool of 45 mm thickness and density 15 Kg/m3 between the uprights. Level of acoustic insulation to airborne noise: RA = 45 dBA