EN 13024-1:2011

Glass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and description

This European Standard specifies tolerances, flatness, edgework, fragmentation and physical and mechanical characteristics of monolithic flat thermally toughened borosilicate safety glass for use in buildings.
Information on curved thermally toughened borosilicate safety glass is given in Annex A, but this product does not form part of this standard.
Other requirements, not specified in this standard, can apply to thermally toughened borosilicate safety glass which is incorporated into assemblies, e.g. laminated glass or insulating glass units, or undergo an additional treatment, e.g. coating. The additional requirements are specified in the appropriate product standard. Thermally toughened borosilicate safety glass, in this case, does not lose its mechanical or thermal characteristics.
This European Standard does not cover glass sandblasted after toughening.

Bauwesen - Thermisch vorgespanntes Borosilicat-Einscheibensicherheitsglas - Teil 1: Definition und Beschreibung

Diese Europäische Norm legt die Grenzabmaße, Geradheit, Kantenbearbeitung, das Bruchverhalten und
physikalische und mechanische Eigenschaften von einscheibigem, flachem, thermisch vorgespanntem
Borosilicat-Einscheibensicherheitsglas für die Verwendung im Bauwesen fest.
Gebogenes thermisch vorgespanntes Borosilicat-Einscheibensicherheitsglas ist zwar im Anhang A erwähnt,
aber nicht Bestandteil dieser Norm.
An thermisch vorgespannte Borosilicat-Einscheibensicherheitsgläser können andere Anforderungen, die in dieser
Norm nicht beschrieben sind, gestellt werden, wenn sie Bestandteil sind von Kombinationen wie z. B.
Verbundglas, Isolierglas oder wenn sie weiterverarbeitet werden, z. B. beschichtet. Die zusätzlichen
Anforderungen sind in den entsprechenden Normen der Fertigprodukte festgelegt. In diesem Fall wird thermisch
vorgespanntes Borosilicat-Einscheibensicherheitsglas seine mechanischen oder thermischen Eigenschaften nicht
verlieren.
Diese Europäische Norm behandelt kein im Anschluss an das Vorspannen sandgestrahltes Glas.

Verre dans la construction - Verre borosilicate de sécurité trempé thermiquement - Partie 1: Définition et description

La présente Norme européenne spécifie les tolérances, la planéité, la finition des chants, la fragmentation et
les caractéristiques physiques et mécaniques du verre plat monolithique borosilicate de sécurité, trempé
thermiquement, destiné à être utilisé dans la construction.
Des renseignements sont donnés dans l’Annexe A sur le verre borosilicate de sécurité bombé trempé
thermiquement mais ce produit ne fait pas partie de la présente norme.
D’autres exigences, non spécifiées dans la présente norme, sont susceptibles de s’appliquer au verre
borosilicate de sécurité trempé thermiquement intégré dans des ensembles, par exemple des ensembles en
verre feuilleté ou des vitrages isolants, ou de subir un traitement supplémentaire, par exemple un revêtement.
Les exigences supplémentaires sont spécifiées dans la norme de produit correspondante. Dans ce cas, le
verre borosilicate de sécurité trempé thermiquement ne perd pas ses caractéristiques mécaniques ou
thermiques.
La présente Norme européenne ne traite pas du verre sablé après trempe.

Steklo v gradbeništvu - Kaljeno borosilikatno varnostno steklo - 1. del: Definicija in opis

Ta evropski standard določa toleranco, ploskost, obdelavo robov, drobljenje ter fizične in mehanske lastnosti monolitnega ploskega kaljenega borosilikatnega varnostnega stekla, ki se uporablja v gradbeništvu. Informacije o ukrivljenem kaljenem borosilikatnem varnostnem steklu so podane v dodatku A, vendar ta izdelek ni del tega standarda. Druge zahteve, ki niso določene v tem standardu, se lahko uporabljajo za kaljeno borosilikatno varnostno steklo, ki je vgrajeno v sestave, npr. lepljeno steklo ali izolacijsko steklo, ali pa ga je treba dodatno obdelati, npr. z nanosi. Dodatne zahteve so določene v ustreznem standardu za izdelek. Kaljeno borosilikatno varnostno steklo v tem primeru ne izgubi mehanskih ali toplotnih lastnosti.

General Information

• Status: Published
• Publication Date: 29-Nov-2011
• Withdrawal Date: 30-May-2012
• ICS: 81.040.20 - Glass in building
• Technical Committee: CEN/TC 129 - Glass in building
• Drafting Committee: CEN/TC 129/WG 2 - Toughened, heat strengthened and enamelled glass
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 30-Nov-2011
• Due Date: 30-Nov-2012
• Completion Date: 30-Nov-2011
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/135 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on flat glass, profiled glass and glass block products
• Ref Project: SIST EN 13024-1:2012 - Glass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and description

Relations

• Replaces: EN 13024-1:2002 - Glass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and description
• Effective Date: 18-Dec-2010
• Revised: FprEN 13024-1:2019 - Glass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and description
• Effective Date: 13-Nov-2017

Overview

EN 13024-1:2011 - Glass in building: Thermally toughened borosilicate safety glass (Part 1: Definition and description) defines and describes the properties, tolerances and test-related characteristics of monolithic, flat thermally toughened borosilicate safety glass for use in buildings. The standard sets out how this safety glass should behave mechanically and thermally, how it fragments on breakage, and which dimensional and flatness tolerances apply. Curved borosilicate toughened glass is described in Annex A for information only and is not part of the mandatory scope. Glass sandblasted after toughening is excluded.

Key topics

• Product definition and scope
  • Monolithic, flat thermally toughened borosilicate safety glass used in buildings.
  • Clarification that additional requirements apply when incorporated into assemblies (laminates, insulating glass units) or when coated; the base mechanical/thermal properties remain.
• Dimensions and tolerances
  • Nominal thickness, thickness tolerances, width/length limits and squareness (expressed via diagonal differences).
• Flatness and optical characteristics
  • Measurements and limits for overall bow, roller wave, edge lift (horizontal toughening) and local distortion (vertical toughening).
  • Optical distortion and anisotropy (iridescence) are covered as part of physical characteristics.
• Edgework, holes, notches and cut-outs
  • Requirements and limits for edge profiles, drilled holes, position tolerances and shaped panes intended for toughening.
• Fragmentation and safety performance
  • Fragmentation test method, particle count assessment and maximum particle length criteria to ensure safe breakage behaviour.
• Mechanical and thermal characteristics
  • Thermal durability, mechanical strength testing references and classification for accidental human impact (see EN 12600).

Applications and users

EN 13024-1 is practical for:

• Glass manufacturers producing thermally toughened borosilicate safety glass.
• Façade engineers, architects and specifiers selecting safety glass for buildings.
• Testing laboratories and conformity assessors performing fragmentation, flatness and strength checks.
• Window, curtain wall and insulating glass unit suppliers, to ensure components meet dimensional and safety requirements before assembly.

This standard helps ensure consistent quality, predictable breakage behaviour and compliance when using thermally toughened borosilicate safety glass in building applications.

Related standards

• EN 1748-1-1 (borosilicate glass basic properties)
• EN 1096-1 (coated glass)
• EN 12600 (pendulum impact test and classification)
• EN 1288-3 (bending strength test)
• EN 13024-2 (conformity / product standard)

Keywords: EN 13024-1:2011, thermally toughened borosilicate safety glass, glass in building, fragmentation, flatness, tolerances, edgework, thermal durability.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Steklo v gradbeništvu - Kaljeno borosilikatno varnostno steklo - 1. del: Definicija in opisGlas im Bauwesen - Thermisch vorgespanntes Borosilicat-Einscheiben-Sicherheitsglas - Teil 1: Definition und BeschreibungVerre dans la construction - Verre borosilicate de sécurité trempé thermiquement - Partie 1: Définition et descriptionGlass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and description81.040.20Steklo v gradbeništvuGlass in buildingICS:Ta slovenski standard je istoveten z:EN 13024-1:2011SIST EN 13024-1:2012en,fr,de01-marec-2012SIST EN 13024-1:2012SLOVENSKI
STANDARDSIST EN 13024-1:20041DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13024-1
November 2011 ICS 81.040.20 Supersedes EN 13024-1:2002English Version
Glass in building - Thermally toughened borosilicate safety glass - Part 1: Definition and description
Verre dans la construction - Verre borosilicate de sécurité trempé thermiquement - Partie 1: Définition et description Glas im Bauwesen - Thermisch vorgespanntes Borosilicat-Einscheiben-Sicherheitsglas - Teil 1: Definition und Beschreibung This European Standard was approved by CEN on 25 September 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13024-1:2011: ESIST EN 13024-1:2012

Curved thermally toughened borosilicate safety glass . 27Annex B (informative)
Alternative method for the measurement of roller wave distortion . 28B.1 Apparatus . 28B.2 Method . 28B.3 Limitations . 29B.4 Alternative use of apparatus . 29Annex C (informative)
Example of particle count . 30Bibliography . 33 SIST EN 13024-1:2012

NOTE The information is given in Annex A. 3.2 edge deformation deformation of the edge because of the tong marks 3.3 edge lift (also referred to as edge dip) distortion produced in horizontal toughened glass, at the leading and trailing edge of the plate NOTE This is a distortion produced by a reduction in surface flatness. SIST EN 13024-1:2012

The fragmentation described in Clause 8 is undertaken on unrestrained test specimens. The fragmentation in service may not always correspond to that determined during the fragmentation test due to the imposition of other stresses, i.e. from fixing or from reprocessing (e.g. laminating). 6 Dimensions and tolerances
6.1 Nominal thickness and thickness tolerances The nominal thicknesses and thickness tolerances are those given in the relevant product standard (see Clause 4), some of which are reproduced in Table 1. Table 1 — Nominal thicknesses and thickness tolerances Dimensions in millimetres Nominal Thickness tolerances for glass type thickness d Float Drawn sheet, rolled, cast 3 ± 0,2 - 0,4 / + 0,5 4 ± 0,2 - 0,4 / + 0,5 5 ± 0,2 - 0,4 / + 0,5 6 ± 0,2 - 0,4 / + 0,5 6,5 ± 0,2 - 0,4 / + 0,5 7,5 ± 0,3 - 0,4 / + 0,5 8 ± 0,3 - 0,4 / + 0,8 9 ± 0,3 - 0,9 / + 1,0 10 ± 0,3 - 0,9 / + 1,0 11 ± 0,3 - 0,9 / + 1,0 12 ± 0,3 - 0,9 / + 1,0 13 ± 0,5 - 0,9 / + 1,0 15 ± 0,5 - 0,9 / + 1,0
The thickness of a pane shall be determined as for the basic product. The measurement shall be taken at the centres of the 4 sides, and away from the area of any tong marks (see Figure 2), which may be present. SIST EN 13024-1:2012

Figure 1 — Examples of width, B, and length, H, relative to the pane shape 6.2.2 Maximum and minimum sizes For maximum and minimum sizes, the manufacturer should be consulted. 6.2.3 Tolerances and squareness The nominal dimensions for width and length being given, the finished pane shall not be larger than the nominal dimensions increased by the tolerance t, or smaller than the nominal dimensions reduced by the tolerance t. Limits are given in Table 2. The squareness of rectangular glass panes is expressed by the difference between its diagonals.
The difference between the two diagonal lengths of the pane of glass shall not be larger than the deviation limit v as specified in Table 3. The limits of squareness are described by deviation between diagonals. Limits are given in Table 3. Table 2 — Tolerances on width, B, and length, H Dimensions in millimetres Nominal dimension of side,
B or H Tolerance, t nominal glass thickness,
d ≤ 8 nominal glass thickness, d > 8 ≤ 2 000 ± 3,0 ± 4,0 2 000 < B or H ≤ 3 000 ± 4,0 ± 5,0 > 3 000 ± 5,0 ± 6,0 SIST EN 13024-1:2012

d > 8 ≤ 2 000 ≤ 4 ≤ 6 2 000 < B or H ≤ 3 000 ≤ 6 ≤ 8 > 3 000 ≤ 8 ≤ 10
6.2.4 Edge deformation produced by the vertical process The tongs used to suspend the glass during toughening result in surface depressions, known as tong marks (see Figure 2). The centres of the tong marks are situated up to a maximum of 20 mm in from the edge. A deformation of the edge less than 2 mm can be produced in the region of the tong mark and there may also be an area of optical distortion. These deformations are included in the tolerances in Table 2.
Key 1
deformation 2
up to 20 mm 3
tong mark 4
100 mm radius maximum area of optical distortion Figure 2 — Tong mark deformation 6.3 Flatness 6.3.1 General By the very nature of the toughening process, it is not possible to obtain a product as flat as annealed glass. This difference in flatness depends on the type of glass, e.g. coated etc., glass dimensions, i.e. the nominal thickness, the dimensions and the ratio between the dimensions, and the toughening process employed, i.e. vertical or horizontal. There are four kinds of distortion:  overall bow (see Fi
...