太阳能超白压花玻璃-外观降级品（有一不明显线道）

玻璃表面边部有一条不明显的线道，对外观有轻微影响，组件层压后基本看不出 Base glass materialGlass PropertiesMaximum iron content£ 0,015% Fe2O3Glass thicknesses/tolerance 3,2mm and 4mm ± 0,2mmSolar energy transmittance TEin % Measurement by UV-Vis-Spectrometer

(acc. ISO 9050:1990(E) and DIN 67507 / 6.3., factors acc. ISO 9845/1, 380-1200 nm, AM 1.5) MMSM3,2mm91,191,14mm91,091,0Weight2.5 x glass thickness in kg/m²Surface condition(Surface Roughness )MM GlassFront and back side mattRa0.5-1.7µmSM GlassFront side matt and back side patternedRa (matt) 0.5-1.7µmGlass quality per sheet:Test criteria (EN 572-5; 1994 / 5.1.1.1):Viewing distance 1,5 m vertical to the sheetparallel to a matt grey sheet at a distance of 3m in diffuse daylight Bubbles/Core/Solid inclusions < 0,5mm unlimited 0,5 - 1,5mm1,5 – 3,0mm> 3,0mm620Longitudinal: Bubbles/Core/Solid inclusionsLength (mm)4-1010-25>25Width < 1mm410Width 1-1,5mm200Width > 1,5mm000Scratches:Scratch length <5mm 5-10mm 10-25mmScratch width < 1 mmScratch width > 1 mm402000Dimensional accuracyDimensions*1rectangular 3,2mm max. 2200 x 1700mm min. 200 x 250mm4 mm max. 2500 x 1800mm min. 200 x 250mmDimensional tolerance± 1,0mmAngularity2mm/m (Maximum diagonal difference 3mm)Edge processingAt least seamedShells L x W x DMaximum permissible 12 x 1,0 x0,5mmCut cornersMaximum 3mmPlanityGeneral bow : Fully tempered glass3mm/mLocal bow: Fully tempered glass0,5mm/300mmMechanical PropertiesCompressive strength: Fully tempered700-900 N/mm2Mechanical resistance: Fully tempered glass (bending strength) 90 N/mm²Minimum values from the particle count: Fully tempered glass:Number of fragments per a test area of50 x 50 mm3,2mm minimum 304mm minimum 40 Longest fragment: 50mmHeat resistanceThermal resistancPermanent temperature resistance up to 250°C