Dimensions range - Minimal - The format with diagonal min. 300mm, 270 x 50 Diagonal of form not less than 270 mm, Maximal - 3000x1700, 6000 x 2800. Thickness range - 3mm, 4 – 19mm. Notes - Glass designed for tempering must be subjected to edge treatment. Blunting is a sufficient treatment. The tempered glass at APERTE meets the requirements of BS EN 12150 standard.