HIGH CHEMICAL RESISTANCE GRATINGS (SCH 50/28_ISO) HIGH CHEMICAL RESISTANCE GRATINGS (SCH 50/28_ISO) Technical Table Standard panels (mmxmm) 1000 x 2000 Mesh (mm) 50 x 30 Clear span 42 x 22 Thickness (mm) 28 Beam thickness (mm) 7/8 Weight (kg/m2) 15 Color Translucent green Code:SCH 50/28_ISO