EN 14178-1:2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Chemical composition
  4.1 Principal constituents
  4.2 Tint
5 Physical and mechanical characteristics
  5.1 General characteristics
  5.2 Designation of clear alkaline earth silicate glass
  5.3 Stability of physical and chemical characteristics
6 Dimensional requirements
  6.1 Thickness
      6.1.1 Tolerances
  6.2 Manufacturing dimensions
  6.3 Length, width, and squareness
7 Quality Requirements
  7.1 Methods of observation and measurement
      7.1.1 Optical faults
      7.1.2 Visual faults
  7.2 Acceptance levels
      7.2.1 Optical faults
      7.2.2 Spot faults
      7.2.3 Linear/extended faults
      7.2.4 Edge defects for final cut sizes
8 Designation
Bibliography

This document defines and classifies basic alkaline earth silicate glasses for use in building. It indicates their chemical composition, main physical and mechanical properties, dimensional and minimum quality requirements (in respect of optical and visual faults).This document applies to basic alkaline earth silicate glasses supplied in jumbo sizes, split sizes and final cut sizes.This document does not apply to final cut sizes having a dimension less than 100mm or a surface area less than 0,05m².