BS EN ISO 12543-5-1998

BRITISH STANDARDGlass in building — Laminated glass and laminated safety glass — Part 5: Dimensions and edge finishing ICS 81.040.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN ISO 12543-5:1998 BS EN ISO 12543-5:1998 National foreword This British Standard reproduces verbatim EN ISO 12543-5:1998 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee B/520, Glass and glazing in building, to Subcommittee B/520/1, Basic and transformed glass products, which has the responsibility to: — aid enquirers to understand the text; — present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; — monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 December 1998 © BSI 09-1999 ISBN 0 580 30993 2 This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 11 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments BS EN ISO 12543-5:1998 Contents National foreword Foreword Text of EN ISO 12543-5 © BSI 09-1999 Page Inside front cover 2 3 i ii blank EUROPEAN STANDARD EN ISO 12543-5 NORME EUROPÉENNE EUROPÄISCHE NORM June 1998 ICS 81.040.20 Descriptors: Glazing, safety glass, laminated glass, buildings, dimensions, dimensional tolerances, dimensional measurements, fabrication English version Glass in building — Laminated glass and laminated safety glass — Part 5: Dimensions and edge finishing (ISO 12543-5:1998) Verre dans la construction — Verre feuilleté et verre feuilleté de sécurité — Partie 5: Dimensions et façonnage des bords Glas im Bauwesen — Verbundglas und Verbund-Sicherheitsglas — Teil 5: Maße und Kantenbearbeitung (ISO 12543-5:1998) (ISO 12543-5:1998) This European Standard was approved by CEN on 12 January 1998. 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 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 translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels © 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12543-5:1998 E EN ISO 12543-5:1998 Foreword The text of EN ISO 12543-5:1998 has been prepared by Technical Committee CEN/TC 129 “Glass in building”, the secretariat of which is held by IBN, in collaboration with Technical Committee ISO/TC 160 “Glass in building”. This part of the standard is one of a series of interrelated parts: EN ISO 12543-1, Glass in building — Laminated glass and laminated safety glass — Part 1: Definitions and description of component parts. EN ISO 12543-2, Glass in building — Laminated glass and laminated safety glass — Part 2: Laminated safety glass. EN ISO 12543-3, Glass in building — Laminated glass and laminated safety glass — Part 3: Laminated glass. EN ISO 12543-4, Glass in building — Laminated glass and laminated safety glass — Part 4: Test methods for durability. EN ISO 12543-5, Glass in building — Laminated glass and laminated safety glass — Part 5: Dimensions and edge finishing. EN ISO 12543-6, Glass in building — Laminated glass and laminated safety glass — Part 6: Appearance. 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 December 1998, and conflicting national standards shall be withdrawn at the latest by December 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. 2 Contents Foreword 1 Scope 2 Normative references 3 Dimensions and limit deviations 3.1 Thickness 3.2 Width B and length H 4 Edge finishes 4.1 Cut edge 4.2 Worked edges Annex A (informative) Bibliography Figure 1 — Width and length relative to pane shape Figure 2 — Limit deviations for dimensions of rectangular panes Figure 3 — Displacement Figure 4 — Cut edge built by cut edges of the constituent glass panes not subsequently worked Figure 5 — Cut edge of cut laminated glass, not subsequently worked Figure 6 — Arrissed edge Figure 7 — Ground edge Figure 8 — Smooth ground edge Figure 9 — Polished edge Figure 10 — Bevel edge Table 1 — Limit deviations on thickness of cast-in-place products Table 2 — Limit deviations on thickness of fire resistant laminated glass Table 3 — Limit deviations for finished sizes Table 4 — Limit deviations for stock sizes Table 5 — Maximum displacement Page 2 3 3 3 3 5 7 8 8 11 5 5 7 8 8 8 9 9 9 10 4 4 6 6 7 © BSI 09-1999 EN ISO 12543-5:1998 1 Scope This Standard specifies dimensions, limit deviations, and edge finishes of laminated glass and laminated safety glass for use in building. It does not apply to panes having an area less than 0,05 m2. 2 Normative references This European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 572-2, Glass in building — Basic soda lime silicate glass products — Part 2: Float glass. EN 572-3, Glass in building — Basic soda lime silicate glass products — Part 3: Polished wired glass. EN 572-4, Glass in building — Basic soda lime silicate glass products — Part 4: Drawn sheet glass. EN 572-5, Glass in building — Basic soda lime silicate glass products — Part 5: Patterned glass. EN 572-6, Glass in building — Basic soda lime silicate glass products — Part 6: Wired patterned glass. EN 1748-1, Glass in building — Special basic products — Part 1: Borosilicate glasses. EN 1748-2, Glass in building — Special basic products — Part 2: Glass ceramics. prEN 1863, Glass in building — Heat strengthened glass. prEN 12150, Glass in building — Thermally toughened safety glass. 3 Dimensions and limit deviations 3.1 Thickness 3.1.1 Nominal Thickness The nominal thickness of laminated glass shall be the sum of the nominal thickness of the constituent panes of glass and plastics glazing sheet material and the interlayers. 3.1.2 Limit deviation on thickness 3.1.2.1 Limit deviation on thickness of folio laminated products The limit deviations on thickness of laminated glass shall not exceed the sum of the limit deviations of the constituent glass panes as specified in the basic products standards: EN 572-2 to EN 572-6, EN 1748-1 and EN 1748-2. The limit deviation of the interlayer shall not be taken into account if the total interlayer thickness is <2 mm. If the total interlayer thickness is U2 mm a limit deviation of ±0,2 mm applies. For plastics glazing sheet material the limit deviation on thickness shall be assumed to be the same as a float glass of the same nominal thickness (see EN 572-2). NOTE If the plastics glazing sheet material is covered by a European Technical agreement, then the actual limit deviations on thickness can be used. EXAMPLE: A laminated glass made from two sheets of float glass of 3 mm nominal thickness and an interlayer of 0,5 mm. From EN 572-2, the limit deviation of 3 mm float glass is ±0,2 mm. Therefore, the nominal thickness is 6,5 mm and the limit deviation is ±0,4 mm. 3.1.2.2 Limit deviations on thickness of cast in place products The limit deviation on thickness of cast in place products shall not exceed the sum of the limit deviations of the constituent glass panes as specified in the basic products standards, i.e. EN 572-2 to EN 572-6, and the limit deviations of the cast in place interlayers. For plastics glazing sheet material the limit deviation shall be assumed to be the same as a float glass of the same nominal thickness (see EN 572-2). NOTE If the plastics glazing sheet material is covered by a European Technical agreement, then the actual limit deviations on thickness can be used. The permitted limit deviations on thickness of cast-in-place interlayers are given in Table 1. © BSI 09-1999 3 EN ISO 12543-5:1998 Table 1 — Limit deviations on thickness of cast-in-place products Interlayer thickness <1 mm U1 mm to <2 mm U2 mm to <3 mm U3 mm Limit deviation ±0,4 mm ±0,5 mm ±0,6 mm ±0,7 mm 3.1.2.3 Limit deviations on thickness of fire resistant laminated glass The limit deviation on thickness of the fire resistant laminated glass shall not exceed the sum of the limit deviations of the constituent glass panes as specified in the basic products standards, i.e. EN 572-2 to EN 572-6, and the limit deviations of the fire resistant interlayers. For plastics glazing sheet material the limit deviation shall be assumed to be the same as a float glass of the same nominal thickness (see EN 572-2). NOTE If the plastics glazing sheet material is covered by a European Technical agreement, then the actual limit deviations on thickness can be used. For the fire resistant interlayers of fire resistant laminated glass the limit deviations of Table 2 are permitted: Table 2 — Limit deviations on thickness of fire resistant laminated glass Interlayer thickness Limit deviation ±0,4 mm ±0,5 mm ±0,6 mm ±1,0 mm <1 mm U1 mm to <2 mm U2 mm to <5 mm U5 mm 3.1.2.4 Limit deviations on thickness of combinations For laminated glass comprising different kinds of interlayers the limit deviation on thickness of the laminated glass shall be the sum of the allowed limit deviations of the constituent glass panes and the square root of the sum of the squares of the interlayer limit deviations, rounded to the nearest 0,1 mm. EXAMPLE: A laminated glass made from four sheets of float glass of nominal thickness 3 mm, a folio interlayer of 0,5 mm thickness and two fire resistant interlayers of 1,5 mm thickness: Nominal thickness: 4 ×3 mm + 0,5 mm + 2 ×1,5 mm = 15,5 mm = 2 2 4 ×(±0,2 mm) ± 0,5 mm + 0,5 mm Limit deviation: ±0,8 mm ±0,707 mm = ±1,5 mm. 3.1.3 Measurement of thickness The thickness of the pane shall be calculated as the mean of measurements taken at the centres of the four sides. The measurements shall be taken to an accuracy of 0,01 mm and the mean is then rounded to the nearest 0,1 mm. The individual measurements when rounded to the nearest 0,1 mm shall also be within the limit deviations. For laminated glass incorporating patterned glass the measurement shall be made by means of an instrument of the plate gauge type with a diameter of 55 mm ± 5 mm. 4 © BSI 09-1999 EN ISO 12543-5:1998 3.2 Width B and length H When laminated glass sizes are quoted for rectangular panes the first dimension shall be the width B and the second dimension the length H as shown in Figure 1: Figure 1 — Width and length relative to pane shape NOTE The maximum width and length of laminated glass are dependent on the constituent glass and interlayers used in its composition and on the manufacturing plant of each individual manufacturer. Each manufacturer indicates the maximum and minimum size he can produce. Dimensions shall be given in millimetres. Each dimension shall be within the limit deviations specified. 3.2.1 Methods of measuring dimensions and squareness The nominal dimensions for width B and length H being given, the pane shall not be larger than a prescribed rectangle resulting from the nominal dimensions increased by the upper limit deviation t or smaller than a prescribed rectangle resulting from the nominal dimensions reduced by the lower limit deviation t. The sides of the prescribed rectangles are parallel to one another and these rectangles shall have a common centre. The limits of squareness shall be prescribed by these rectangles (see Figure 2). Figure 2 — Limit deviations for dimensions of rectangular panes © BSI 09-1999 5 EN ISO 12543-5:1998 3.2.2 Limit deviations on width B and length H Limit deviations on width B and length H are given in Table 3 for finished sizes and in Table 4 for stock sizes. Any displacement (see 3.2.3) shall be included in these limit deviations. Table 3 — Limit deviations for finished sizes Limit deviations t on width B or length H mm Nominal dimension B or H mm Nominal Thickness k 8 mm Nominal thickness > 8 mm Each glass pane < 10 mm nominal At least one glass pane U 10 mm thickness nominal thickness <1 100 +2,0 p2,0 +2,5 –2,0 +3,5 p2,5 <1 500 +3,0 –2,0 +3,5 p2,0 +4,5 p3,0 <2 000 +3,0 –2,0 +3,5 p2,0 +5,0 p3,5 <2 500 +4,5 –2,5 +5,0 p3,0 +6,0 p4,0 >2 500 +5,0 –3,0 +5,5 p3,5 +6,5 p4,5 Table 4 — Limit deviations for stock sizes Limit deviations t on width B or length H mm Nominal dimension B or H mm up to 6 000 × 3 210 Nominal thickness k 8 mm +5,0 –3,0 Nominal thickness > 8 mm Each glass pane <10 mm nominal thickness +6,0 –4,0 At least one glass pane U 10 mm nominal thickness +8,0 –6,0 The limit deviations given in Table 3 and Table 4 do not apply for fire resistant laminated glass and fire resistant laminated safety glass. In this case the manufacturer will specify the limit deviations. 6 © BSI 09-1999 EN ISO 12543-5:1998 3.2.3 Displacement Displacement d (see Figure 3) is the misalignment at any one edge of the constituent glass panes or plastic glazing sheet material making up the laminated glass. Figure 3 — Displacement The maximum displacement d shall be as given Table 5. Width B and length H shall be considered separately. Table 5 — Maximum displacement Maximum permissible displacement d mm Nominal dimension B or H mm B, H k1 000 1 000 <B, H k2 000 2 000 <B, H k4 000 B, H >4 000 2,0 3,0 4,0 6,0 4 Edge finishes Thermally toughened safety glass and heat strengthened glass shall not be cut, sawn, drilled or edgeworked after making into a laminate, but may be individually worked before toughening or heat strengthening in accordance with prEN 1863 and prEN 12150. NOTE Attention is drawn on the following drafts: prEN 13024-1 and (WI 00129055); (WI 00129057) The edges of fire resistant laminated glass and fire resistant laminated safety glass may be protected by an adhesive tape. © BSI 09-1999 7 EN ISO 12543-5:1998 4.1 Cut edge These are either originally cut edges of the constituent glass panes not subsequently worked (see Figure 4), or the edges of the laminated glass which have been cut and not subsequently worked (see Figure 5). Figure 4 — Cut edge built by cut edges of the constituent glass panes not subsequently worked Figure 5 — Cut edge of cut laminated glass, not subsequently worked 4.2 Worked edges 4.2.1 Arrissed edge (see Figure 6) The originally cut edges of the outer glass panes of the laminated glass shall be ground off. Figure 6 — Arrissed edge 8 © BSI 09-1999 EN ISO 12543-5:1998 4.2.2 Ground edge (see Figure 7) The glass shall be arrissed and flat ground. Some bright areas may still exist on the edge face. Figure 7 — Ground edge 4.2.3 Smooth ground edge (see Figure 8) The edge face of the arrissed glass shall be ground and then smoothed with a finer grit than is used for ground edges, and all bright areas removed. Figure 8 — Smooth ground edge 4.2.4 Polished edge (see Figure 9) The previously smooth ground edge shall be polished in order to obtain a high lustre on the arrissed and smoothed edges surface. Figure 9 — Polished edge © BSI 09-1999 9 EN ISO 12543-5:1998 4.2.5 Bevel edge (see Figure 10) A bevel edge shall be smooth ground or polished edge with an angle not exceeding 60°. The limit deviation on bevel angle shall be ±3°. NOTE For greater angles and their limit deviations the manufacturer should be contacted. The nominal dimension B or H is reduced by 2 mm to 3 mm because of the need of an arrissed edge. Figure 10 — Bevel edge 4.2.6 Sawn edge Sawn edge shall be obtained by cuffing with a saw. The appearance is similar to ground edges but without bright spots and arrissing. 4.2.7 Water jet cut edge Water jet cut edge shall be obtained by cuffing with a “water jet”. The appearance is similar to ground edges but without bright spots and arrissing. 10 © BSI 09-1999 EN ISO 12543-5:1998 Annex A (informative) Bibliography prEN 13024-1 © BSI 09-1999 “Glass in building — Heat soaked thermally toughened safety glass” (WI 00129055) “Glass in building — Thermally toughened borosilicate safety glass — Part 1: Specifications “Glass in building — Heat strengthened borosilicate glass” (WI 00129057) 11 BS EN ISO 12543-5:1998 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. 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