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BS EN 12150-1:2015 Glass in building. Thermally toughened soda lime silicate safety glass - Definition and description, 2015
- Contents Page
- European foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Glass products
- 5 Fracture characteristics
- 6 Dimensions and tolerances [Go to Page]
- 6.1 Nominal thickness and thickness tolerances
- Table 1 — Nominal thicknesses and thickness tolerances [Go to Page]
- 6.2 Width and length (sizes) [Go to Page]
- 6.2.1 General
- Figure 1 — Examples of width, B, and length, H, relative to the pane shape [Go to Page]
- 6.2.2 Maximum and minimum sizes
- 6.2.3 Tolerances and squareness
- Table 2 — Tolerances on width, B, and length, H
- Table 3 — Limit deviations for the difference between diagonals [Go to Page]
- 6.2.4 Edge deformation produced by the vertical process
- Figure 2 — Tong mark deformation [Go to Page]
- 6.3 Flatness [Go to Page]
- 6.3.1 General
- Figure 3 — Representation of overall bow
- Figure 4 — Representation of roller wave distortion
- Figure 5 — Representation of edge lift
- Figure 6 — Representation of local distortion [Go to Page]
- 6.3.2 Measurement of overall bow
- Figure 7 — Support conditions for the measurement of overall bow [Go to Page]
- 6.3.3 Measurement of wave and roller wave [Go to Page]
- 6.3.3.1 General
- 6.3.3.2 Apparatus
- 6.3.3.3 Method
- 6.3.3.4 Limitations
- Figure 8 — Measurement of wave or roller wave distortion [Go to Page]
- 6.3.4 Measurement of edge lift (for horizontally toughened glass only)
- Figure 9 — Measurement of edge lift [Go to Page]
- 6.3.5 Measurement of perimeter deformation of glass produced by air cushion toughening process
- Figure 10 — Measurement of perimeter deformation [Go to Page]
- 6.3.6 Measurement of local distortion (for vertically toughened glass only)
- Figure 11 — Measurement of local distortion [Go to Page]
- 6.3.7 Limitation on overall bow, roller waves and edge lift for horizontally toughened glass
- Table 4 — Maximum allowable values of overall bow and roller wave distortion for horizontally toughened glass
- Table 5 — Maximum allowable values for edge lift for horizontal toughening [Go to Page]
- 6.3.8 Limitation on overall bow, wave and perimeter deformation for toughened glass manufactured by air cushion process
- Table 6 — Maximum allowable values of overall bow and wave distortion for toughened glass manufactured by air cushion process
- Table 7 — Maximum allowable values for perimeter deformation for toughened glass manufactured by air cushion process [Go to Page]
- 6.3.9 Limitation on overall bow and local distortion for vertically toughened glass
- Table 8 — Maximum allowable values of overall bow and local distortion for vertical toughened glass [Go to Page]
- 6.3.10 Other distortions
- 7 Edge and/or surface work, holes, notches and cut-outs [Go to Page]
- 7.1 Warning
- 7.2 Edge working of glass for toughening
- Figure 12 — Arrissed edge (with blank spots)
- Figure 13 — Ground edge (with blank spots)
- Figure 14 — Smooth ground edge (no blank spots)
- Figure 15 — Polished edge [Go to Page]
- 7.3 Profiled edges
- 7.4 Round holes [Go to Page]
- 7.4.1 General
- 7.4.2 Diameter of holes
- 7.4.3 Limitations on position of holes
- Figure 16 — Relationship between hole and edge of pane
- Figure 17 — Relationship between two holes
- Figure 18 — Relationship between hole and corner of pane [Go to Page]
- 7.4.4 Tolerances on hole diameters
- Table 9 — Tolerances on hole diameters [Go to Page]
- 7.4.5 Tolerances on position of holes
- Figure 19 — Examples of the positioning of holes relative to the datum point [Go to Page]
- 7.5 Holes/others
- Figure 20 — Countersunk hole [Go to Page]
- 7.6 Notches and cut-outs
- Figure 21 — Examples of notches and cut-outs [Go to Page]
- 7.7 Shaped panes
- 8 Fragmentation test [Go to Page]
- 8.1 General
- 8.2 Dimensions and number of test specimens
- 8.3 Test procedure
- Figure 22 — Position of impact point [Go to Page]
- 8.4 Assessment of fragmentation
- Figure 23 — Area to be excluded from the particle count determination and largest particle measurement
- Figure 24 — Examples of crack-free particles and the assessment regarding the number [Go to Page]
- 8.5 Minimum values from the particle count
- Table 10 — Minimum particle count values [Go to Page]
- 8.6 Selection of the longest particle
- 8.7 Maximum length of longest particle
- 9 Other physical characteristics [Go to Page]
- 9.1 Optical distortion [Go to Page]
- 9.1.1 Thermally toughened soda lime silicate safety glass produced by vertical toughening
- 9.1.2 Thermally toughened soda lime silicate safety glass produced by horizontal toughening
- 9.2 Anisotropy (iridescence)
- 9.3 Thermal durability
- 9.4 Mechanical strength
- Table 11 — Minimum values for the mechanical strength of thermally toughened soda lime silicate safety glass [Go to Page]
- 9.5 Classification of performance under accidental human impact
- 10 Marking
- Annex A (informative) Curved thermally toughened soda lime silicate safety glass
- Annex B (informative) Alternative method for the measurement of roller wave distortion
- B.1 Apparatus
- Figure B.1 — Roller wave measurement apparatus
- B.2 Method
- Figure B.2 — Place the apparatus across the roller wave
- Figure B.3 — Set the zero of the gauge on a peak of the roller wave
- Figure B.4 — Move the gauge to a trough
- B.3 Limitations
- B.4 Alternative use of apparatus
- Annex C (informative) Examples of particle count
- Figure C.1 — Example of selecting the area of coarsest fracture
- Figure C.2 — Example of marking and counting
- Figure C.3 — Example for marking and counting of overall particle count for the specimen
- Annex D (informative) Risk of spontaneous breakage of toughened glass due to nickel sulfide inclusion
- Bibliography [Go to Page]