Hollow clay brick baked with double perforation horizontal for coated masonry factory .; Name: Hueco del 7; Dimensions and Tolerances: Declared value: 240x120x67 mm, Travel: R1, Tolerances of the average value: T1; Absolute Density: 1930 Kg / m³, Tolerance: Category D1 (10%); Apparent density: 900 Kg / m³ (Limit ≤ 1000 Kg / m³) Tolerance: Category D1 (10%), Resistance to normalized understanding: 5N / mm²; Effort to compression (supporting faces): Sideways; Type of facing: mortar; Air acoustic insulation: Apparent density 900 Kg / m³, Tolerance: Category: D1 (10%); Suction: Cwi.s (kg / m² * min): ≤2.0; Content of active soluble salts: S0; Reaction to fire: A1; Water vapor permeability: Water vapor diffusion coefficient: 10 (value tabulated by EN1745: 2012); Adhesion: Initial characteristic resistance to shear of the piece in combination with the mortar: 0.15 N / mm², declaration based on tabulated values according to EN-998-2:2010, Annex C .; Approximate units per m²: 34.