Din 52305 [portable] Jun 2026

While Germany originated the standard (Deutsches Institut für Normung), DIN 52305 has been widely adopted across Europe and internationally as a de facto benchmark for quality in bent glass production, often harmonized with ISO and EN standards.

The cylindricity deviation ( f_c ) is defined as the along a given generatrix, after subtracting the ideal cylindrical curvature. din 52305

DIN 52305 suggests tolerance classes, e.g.: din 52305

The standard breaks shape deviation down into two distinct values: din 52305