SIST EN 14178-1:2005
(Main)Glass in building - Basic alkaline earth silicate glass products - Part 1: Float glass
Glass in building - Basic alkaline earth silicate glass products - Part 1: Float glass
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.
Glas im Bauwesen - Basiserzeugnisse aus Erdalkali-Silicatglas - Teil 1: Floatglas
Diese Europäische Norm definiert und klassifiziert Basiserzeugnisse aus Erdalkali-Silicatglas für die Verwendung im Bauwesen. Sie enthält Angaben zu deren chemischer Zusammensetzung, den wesentlichen physikalischen und mechanischen Eigenschaften sowie zu Anforderungen an die Maße und Mindestanforderungen an die Qualität (in Bezug auf optische und sichtbare Fehler).
Diese Europäische Norm gilt für Basiserzeugnisse aus Erdalkali-Silicatglas, die in Bandmaßen, geteilten Bandmaßen und in Festmaßen geliefert werden.
Diese Europäische Norm gilt nicht für Festmaße, bei denen mindestens eine Kantenlänge weniger als 100 mm beträgt oder mit einer Oberfläche kleiner als 0,05 m2.
Verre dans la construction - Verre de silicate alcalinoterreux de base - Partie 1: Glace flottée
La présente Norme européenne définit et classe les verres de silicate alcalinoterreux de base utilisés dans la construction. Elle spécifie leur composition chimique, leurs caractéristiques physiques et mécaniques principales ainsi que leurs exigences minimales en matiere de dimension et de qualité (pour ce qui concerne les défauts optiques et visuels).
La présente Norme européenne s'applique aux verres de silicate alcalinoterreux de base en tailles "jumbo", tailles intermédiaires et en dimensions découpées finales.
La présente Norme européenne ne s'applique pas aux dimensions découpées finales dont la dimension est inférieure a 100 mm ni aux superficies inférieures a 0,05 m2.
Steklo v stavbah - Osnovni izdelki iz zemljoalkalijskega silikatnega stekla – 1. del: Ravno steklo
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Steklo v stavbah - Osnovni izdelki iz zemljoalkalijskega silikatnega stekla – 1. del: Ravno stekloGlas im Bauwesen - Basiserzeugnisse aus Erdalkali-Silicatglas - Teil 1: FloatglasVerre dans la construction - Verre de silicate alcalinoterreux de base - Partie 1: Glace flottéeGlass in building - Basic alkaline earth silicate glass products - Part 1: Float glass81.040.20Steklo v gradbeništvuGlass in buildingICS:Ta slovenski standard je istoveten z:EN 14178-1:2004SIST EN 14178-1:2005en01-marec-2005SIST EN 14178-1:2005SLOVENSKI
STANDARD
SIST EN 14178-1:2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14178-1October 2004ICS 81.040.20 English versionGlass in building - Basic alkaline earth silicate glass products -Part 1: Float glassVerre dans la construction - Verre de silicate alcalinoterreuxde base - Partie 1: Glace flottéeGlas im Bauwesen - Basiserzeugnisse aus Erdalkali-Silicatglas - Teil 1: FloatglasThis European Standard was approved by CEN on 27 May 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14178-1:2004: ESIST EN 14178-1:2005
EN 14178-1:2004 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Chemical composition.5 4.1 Principal constituents.5 4.2 Tint.6 5 Physical and mechanical characteristics.6 5.1 General characteristics.6 5.2 Designation of clear alkaline earth silicate glass.7 5.3 Stability of physical and chemical characteristics.8 6 Dimensional requirements.8 6.1 Thickness.8 6.1.1 Tolerances.8 6.2 Manufacturing dimensions.8 6.3 Length, width, and squareness.8 7 Quality Requirements.9 7.1 Methods of observation and measurement.10 7.1.1 Optical faults.10 7.1.2 Visual faults.11 7.2 Acceptance levels.11 7.2.1 Optical faults.11 7.2.2 Spot faults.12 7.2.3 Linear / extended faults.13 7.2.4 Edge defects for final cut sizes.14 8 Designation.15 Bibliography.17
SIST EN 14178-1:2005
EN 14178-1:2004 (E) 3 Foreword This document (EN 14178-1:2004) has been prepared by Technical Committee CEN/TC TC 129 “Glass in building”, the secretariat of which is held by IBN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2005, and conflicting national standards shall be withdrawn at the latest by April 2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, B, C or D, which is an integral part of this document can be found in EN 14178-2. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 14178-1:2005
EN 14178-1:2004 (E) 4 1 Scope 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. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 410, Glass in building — Determination of luminous and solar characteristics of glazing 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 basic alkaline earth silicate glass flat, transparent, clear or tinted float glass with a chemical composition according to 4.1 of this document, having parallel and polished faces obtained by continuous casting and floatation on a metal bath 3.2 length, H, and width, B these are defined with reference to the direction of draw of the float glass ribbon as shown in Figure 1
Figure 1 — Relationship between length, width and direction of draw 3.3 jumbo sizes glass delivered in the following sizes: SIST EN 14178-1:2005
EN 14178-1:2004 (E) 5
Nominal length H: 4500 mm, 5100 mm or 6000 mm
Nominal width B: 3210 mm NOTE The usual width is 3210 mm. Exceptional production requirements may cause this to be reduced but the nominal width is never below 3150 mm 3.4 split sizes glass delivered in the following size ranges:
Nominal length H: 1000 mm to 2550 mm
Nominal width B: 3210 mm NOTE The usual width is 3210 mm. Exceptional production requirements may cause this to be reduced but the nominal width is never below 3150 mm. 3.5 final cut size pane of glass that has been cut down to the dimensions being required either for installation or processing into a final product e.g. insulating glass units, thermally toughened safety glass, …of those dimensions 3.6 optical faults these are faults that lead to distortions in the appearance of objects observed trough the glass 3.7 visual faults faults, which alter the visual quality of the glass. They are spot faults and linear / extend faults 3.8 spot faults a spot fault is a nucleus, which is sometimes accompanied by a halo of distorted glass. The dimension of a spot fault comprising a nucleus with a halo is obtained by multiplying the dimension of the nucleus by a factor of approximately 3 3.9 linear / extended faults these faults can be on or in the glass, in the form of deposits, marks or scratches that occupy an extended length or area 3.10 edge defects these defects can occur on the edge of a cut size piece in the form of entrant and emergent faults and / or bevels 4 Chemical composition 4.1 Principal constituents The magnitude of the proportions by mass of the principal constituents of all the alkaline earth silicate glass products covered by this document is as follows:
Silicon Dioxide
SiO2
55 - 70 %
Calcium Oxide
CaO
3 - 12% SIST EN 14178-1:2005
EN 14178-1:2004 (E) 6
Potassium Oxide
K2O
5- 14%
Aluminium Oxide
Al2O3
0 - 15 %
Zirconium Oxide
ZrO2
0– 8 %
Strontium Oxide
SrO
Barium Oxide
BaO
1– 15 %
Others
0 – 10 % 4.2 Tint Body tinted glass is obtained by the addition of suitable materials. 5 Physical and mechanical characteristics 5.1 General characteristics Conventional numerical values for the physical and mechanical characteristics of basic alkaline earth silicate glass products are given in Table 1. These values, for normal annealed glass without any further toughening, are not precise requirements with which the glass shall strictly comply, but are the generally accepted figures for use in calculations where a high degree of accuracy is not required.
Table 1 — General characteristic values of alkaline earth silicate glass Characteristic Symbol Value and unit Density (at 18oC) ρ 2700 kg/m3 Hardness (Knoop) HK0,1/20 5 – 6 Gpa Young's modulus (modulus of elasticity) E 7,7 x 1010 Pa
Poisson's ratio µ 0,2 Characteristic bending strength fg,kkkk 45 x 106 Pa [1] Specific heat capacity cp 0,7 x 103 J/(kg
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