TS EN 1748-1-1

TS EN 1748-1-1 is a standard for borosilicate glasses used in buildings. It sets out definitions and classification for these glasses and defines their chemical composition, main physical and mechanical properties, dimensions, and minimum quality requirements related to optical and visual faults. In practical terms, it provides a common technical description for borosilicate glass products supplied for building use.

Where borosilicate glass sits in building applications

Borosilicate glass is generally known for its thermal resistance and chemical stability. In building applications, those characteristics matter because glass may be exposed to temperature changes and demanding service conditions. The focus of this standard is not manufacturing process detail; it is product definition and classification, so that materials from different suppliers can be compared within the same technical framework.

What the document addresses

• Chemical composition range and the characteristics used to identify a product as borosilicate glass
• Main physical and mechanical properties that describe the material’s general performance
• Dimensional requirements relevant to fit and supply condition
• Minimum quality expectations for optical and visual defects
• Products supplied in stock sizes or cut sizes for final end use in buildings

From a general technical perspective, the value of a document like this lies in defining glass not only by name, but by measurable characteristics and acceptable quality boundaries. That makes it easier for designers, specifiers and the supply chain to use the same technical language when borosilicate glass is selected for architectural and related building applications.