ISO 22509:2020
(Main)Glass in building — Heat strengthened soda lime silicate glass
Glass in building — Heat strengthened soda lime silicate glass
This document specifies product definitions, product characteristics (i.e. tolerances, flatness, edgework), fracture characteristics, including fragmentation, and the physical and mechanical characteristics of flat heat strengthened soda lime silicate glass for use in buildings. This document does not cover surface finished glasses (e.g. sandblasted, acid etched) after heat strengthening. This document does not cover curved (bent) glass. Other requirements, not specified in this document, can apply to heat strengthened soda lime silicate glass which is incorporated into assemblies (e.g. laminated glass or insulating glass units), or undergoes an additional treatment (e.g. coating). The additional requirements are specified in the appropriate glass product standard. Heat strengthened soda lime silicate glass, in this case, does not lose its mechanical or thermal characteristics.
Verre dans la construction — Verre de silicate sodo-calcique durci thermiquement
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 22509
First edition
2020-09
Glass in building — Heat strengthened
soda lime silicate glass
Verre dans la construction — Verre de silicate sodo-calcique durci
thermiquement
Reference number
©
ISO 2020
© ISO 2020
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ii © ISO 2020 – All rights reserved
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Glass products . 2
5 Fracture characteristics . 3
5.1 General . 3
5.2 Fragmentation . 3
6 Dimensions and tolerances . 3
6.1 Nominal thickness and thickness tolerances . 3
6.2 Width and length (sizes) . 4
6.2.1 General. 4
6.2.2 Maximum and minimum sizes . 4
6.2.3 Tolerances and squareness . 4
6.2.4 Edge deformation produced by vertical heat strengthening . 5
6.3 Flatness . 5
6.3.1 General. 5
6.3.2 Measurement of overall bow . 7
6.3.3 Measurement of wave or roller wave distortion . 8
6.3.4 Measurement of edge lift (for horizontally heat strengthened glass only) . 9
6.3.5 Measurement of perimeter deformation of glass produced by air cushion
toughening process . .10
6.3.6 Measurement of local distortion (for vertically heat strengthened glass only) .10
6.3.7 Limitation on overall bow, roller wave and edge lift for horizontally heat
strengthened glass .11
6.3.8 Limitation on overall bow, wave and perimeter deformation for heat
strengthened glass manufactured by air cushion process .12
6.3.9 Limitation on overall bow and local distortion for vertically heat
strengthened glass .12
6.3.10 Other distortions .13
7 Edge work, holes, notches and cut-outs.13
7.1 General .13
7.2 Edge working of glass for heat strengthening .13
7.3 Profiled edges.14
7.4 Round holes .14
7.4.1 General.14
7.4.2 Diameter of holes .14
7.4.3 Limitations on position of holes .14
7.4.4 Tolerances on hole diameters .16
7.4.5 Tolerances on position of holes .16
7.5 Notches and cut-outs .17
7.6 Shaped panes .18
8 Fragmentation test .18
8.1 General .18
8.2 Dimensions and number of test specimens .18
8.3 Test procedure .18
8.4 Assessment of fr agmentation .19
8.5 E valuation of fragmentation .21
8.6 Test report .21
9 Other physical characteristics .21
9.1 Optical distortion .21
9.1.1 Heat strengthened glass produced by vertical heat strengthening .21
9.1.2 Heat strengthened glass produced by horizontal heat strengthening .21
9.1.3 Heat strengthened glass produced by the air cushion process .22
9.2 Anisotropy (iridescence) .22
9.3 Thermal durability .22
9.4 Mechanical strength .22
9.5 Surface pre-stress .23
10 Marking .23
11 Packaging .23
Annex A (informative) Alternative method for the measurement of roller wave distortion .24
Annex B (informative) Method for the measurement of the surface pre-stress of heat
strengthened glass .26
Bibliography .28
iv © ISO 2020 – All rights reserved
Foreword
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This document was prepared by Technical Committee ISO/TC 160, Glass in building, Subcommittee SC 1,
Product considerations.
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