ÖNORM EN 1748-1-1

This European Standard specifies and classifies special basic products - borosilicate float glass, indicates their chemical composition, their main physical and mechanical characteristics, their dimensional and minimum quality requirements (in respect of optical and visual faults). This European Standard applies to special basic products - borosilicate float glass supplied in stock sizes, supplied sizes or in cut sizes for final end use. This European Standard does not apply to final cut sizes having a dimension less than 100 mm or a surface area less than 0,05 m².