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1、BRITISH STANDARDBS EN 572-7:2004 Glass in building Basic soda lime silicate glass products Part 7: Wired or unwired channel shaped glass The European Standard EN 572-7:2004 has the status of a British Standard ICS 81.040.20 ? BS EN 572-7:2004 This British Standard was published under the authority o
2、f the Standards Policy and Strategy Committee on 01 July 2004 BSI 01 July 2004 ISBN 0 580 44004 4 National foreword This British Standard is the official English language version of EN 572-7:2004. It supersedes BS EN 572-7:1994 which is withdrawn. The UK participation in its preparation was entruste
3、d 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: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards
4、which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publ
5、ication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internatio
6、nal/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. Summary of pages This document comprises a front cover, an inside front cover, the EN title
7、page, pages 2 to 9 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. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 572-7 June 2004 ICS 81.040.20Supersedes EN 572-7:1994 E
8、nglish version Glass in Building - Basic soda lime silicate glass products - Part 7: Wired or unwired channel shaped glass Verre dans la construction - Produits de base: verre de silicate sodo-calcique - Partie 7: Verre profil arm ou non arm Glas im Bauwesen - Basiserzeugnisse aus Kalk- Natronsilica
9、tglas Teil 7: Profilbauglas mit oder ohne Drahteinlage This European Standard was approved by CEN on 1 April 2004. 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
10、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 t
11、ranslation 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greec
12、e, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre:
13、 rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 572-7:2004: E ORUEDRADNATS NAEP ENNEPORUE EMRON MRON EHCSIPORUE 7-275 NE 4002 enuJ 02.040.18 SCI4991:7-275 NE sedesrepuS noisrev hsilgnE - stc
14、udorp ssalg etacilis emil ados cisaB - gnidliuB ni ssalG Part ssalg depahs lennahc deriwnu ro deriW :7 ed errev :esab ed stiudorP - noitcurtsnoc al snad erreV non uo mra liforp erreV :7 eitraP - euqiclac-odos etacilis mra -klaK sua essinguezresisaB - nesewuaB mi salG enho redo tim salguabliforP :7 l
15、ieT salgtacilisnortaN egalnietharD .4002 lirpA 1 no NEC yb devorppa saw dradnatS naeporuE sihT eporuE siht gnivig rof snoitidnoc eht etalupits hcihw snoitalugeR lanretnI CELENEC/NEC eht htiw ylpmoc ot dnuob era srebmem NECna s gninrecnoc secnerefer lacihpargoilbib dna stsil etad-ot-pU .noitaretla yn
16、a tuohtiw dradnats lanoitan a fo sutats eht dradnatSlanoitan hcu .rebmem NEC yna ot ro tairaterceS lartneC eht ot noitacilppa no deniatbo eb yam sdradnats art yb edam egaugnal rehto yna ni noisrev A .)namreG ,hcnerF ,hsilgnE( snoisrev laiciffo eerht ni stsixe dradnatS naeporuE sihTnoitalsn t sa suta
17、ts emas eht sah tairaterceS lartneC eht ot deifiton dna egaugnal nwo sti otni rebmem NEC a fo ytilibisnopser eht rednulaiciffo eh .snoisrev ,ecnarF ,dnalniF ,ainotsE ,kramneD ,cilbupeR hcezC ,surpyC ,muigleB ,airtsuA fo seidob sdradnats lanoitan eht era srebmem NEC ,lagutroP ,dnaloP ,yawroN ,sdnalre
18、hteN ,atlaM ,gruobmexuL ,ainauhtiL ,aivtaL ,ylatI ,dnalerI ,dnalecI ,yragnuH ,eceerG ,ynamreG ,aikavolS .modgniK detinU dna dnalreztiwS ,nedewS ,niapS ,ainevolS RUEOPEC NAOMMIF EETTOR STRADNAIDITAZNO COMIRUE TOPED NE RONMALISAITNO RUEOPISCHSE MOKIF EETR RONMGNU slessurB 0501-B 63 ,trassatS ed eur :e
19、rtneC tnemeganaM NEC 4002 devreser snaem yna yb dna mrof yna ni noitatiolpxe fo sthgir llA .srebmeM lanoitan NEC rof ediwdlrow E :4002:7-275 NE .oN .feR EN 572-7:2004 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Dimensional requirements5 4.1 Method of
20、measurement .5 4.1.1 Width, B, and height of flange, d5 4.1.2 Length, H 5 4.1.3 Thickness, c .6 4.1.4 Flange deviation.6 4.1.5 Squareness of cut6 4.1.6 Wire inlay6 4.2 Tolerances6 4.2.1 Width, B, height of flange, d, and thickness c6 4.2.2 Length.6 4.2.3 Flange deviation.7 4.2.4 Squareness of cut7 4
21、.2.5 Wire inlay7 5 Quality requirements.7 5.1 General7 5.2 Methods of observation and measurement 7 5.2.1 Visual faults7 5.2.2 Wire faults.7 5.3 Acceptance levels8 5.3.1 Visual faults8 5.3.2 Wire faults.8 6 Designation 8 Bibliography9 EN 572-7:2004 (E) 3 Foreword This document (EN 572-7:2004) has be
22、en prepared by Technical Committee CEN /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 December 2004, and conflicting national
23、 standards shall be withdrawn at the latest by December 2004. This document supersedes EN 572-7:1994. 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). This European
24、 Standard “Glass in building Basic soda lime silicate glass products” consists of the following parts: EN 572-1 Definitions and general physical and mechanical properties EN 572-2 Float glass EN 572-3 Polished wired glass EN 572-4 Drawn sheet glass EN 572-5 Patterned glass EN 572-6 Wired patterned g
25、lass EN 572-7 Wired or unwired channel shaped glass EN 572-8 Supplied and final cut sizes EN 572-9 Evaluation of conformity/Product standard According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standar
26、d: 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. EN 572-7:2004 (E) 4 1 Sco
27、pe This Part of this European Standard specifies dimensional and minimum quality requirements (in respect of visual and wire faults) for channel shaped glass, as defined in EN 572-1, for use in building. This Part of this standard covers channel shaped glass supplied in stock sizes and final cut siz
28、es. 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
29、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 (including amendments). EN 572-1:2004, Glass in building Basic soda lime silicate glass produ
30、cts Part 1: Definitions and general physical and mechanical properties 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 572-1:2004 and the following apply. 3.1 patterned channel shaped glass channel shaped glass with one patterned surface. A n
31、umber of different patterns are available 3.2 wired channel shaped glass channel shaped glass which has a wire inlay in the web, i.e. across the width, B, which runs in the direction of the length, H. Additional wires may also be in the flanges 3.3 length, H, width, B, and flange height, d defined w
32、ith reference to the direction of draw of the glass ribbon as shown in Figure 1. All corners are rounded 3.4 stock sizes glass delivered in the following sizes: 3.5 nominal length, H supplied in multiples of 250 mm NOTE Maximum length, H, available: 7 000 mm. 3.6 nominal width, B range from 232 mm t
33、o 498 mm EN 572-7:2004 (E) 5 Figure 1 Relationship between U-channel dimensions and direction of draw Key 1 direction of draw 3.7 nominal height of flange, d either 41 mm or 60 mm NOTE Not all widths, B, are available with all flange heights, d. 3.8 visual faults faults that alter the visual quality
34、 of the glass. These include bubbles, ream, scratches and inclusions and where applicable wire faults 3.9 flange deviation deviation, z, of flange from the vertical (see Figure 2) 3.10 wire faults deviation of the wire, penetration of the glass surface by the wire or break in the wire in the body of
35、 the glass 3.11 wire deviation deviation, y, of wire relative to a reference, e.g. line or straight edge, (see Figure 4) 4 Dimensional requirements 4.1 Method of measurement 4.1.1 Width, B, and height of flange, d These are measured at both cut ends of the piece using a vernier calliper with an accu
36、racy of 0,1 mm. 4.1.2 Length, H This is measured at the centre of the web. EN 572-7:2004 (E) 6 4.1.3 Thickness, c The actual thickness is measured at both cut ends. Measurements, to an accuracy of 0,1 mm, are made in the centre of the web and flanges. Measurement should be made by means of an instru
37、ment of the plate gauge type with a diameter of 50 mm 5 mm. 4.1.4 Flange deviation The deviation of the flange, z, from perpendicular to the web is determined with a right angle, as shown in Figure 2. Figure 2 determination of flange deviation 4.1.5 Squareness of cut The out of squareness of the web
38、 and flanges is determined at both cut ends. It is measured relative to a plane perpendicular to the direction of draw of the glass at the intersection of the centre line of the web and of the cut edge (see Figure 3). The deviation of the flange plane is measured. Figure 3 Determination of squarenes
39、s of cut 4.1.6 Wire inlay The relationship between the width of the wire inlay, in the web, and the width, B, of the web should be obtained by measurement. The actual distance between adjacent wires should be measured together with any variation in the spacing. The diameter of the wire should be mea
40、sured. 4.2 Tolerances 4.2.1 Width, B, height of flange, d, and thickness c All measured values shall comply with Table 1. 4.2.2 Length The tolerance on measured length, H, is 3,0 mm. EN 572-7:2004 (E) 7 4.2.3 Flange deviation The flange deviation, z, (see Figure 2) should not exceed 1,0 mm. 4.2.4 Sq
41、uareness of cut The deviation (see Figure 3) shall not exceed 3 mm. 4.2.5 Wire inlay The wire inlay shall cover at least 75 % of the web width, B. The maximum distance between adjacent wires shall not exceed 35 mm. The allowable tolerance between adjacent wires is 6 mm. The diameter of the wire shou
42、ld be between 0,3 mm and 0,7 mm. 5 Quality requirements 5.1 General One quality level is considered in this standard. This is determined by evaluation of the visual and wire faults. 5.2 Methods of observation and measurement 5.2.1 Visual faults The piece of channel shaped glass to be examined is ill
43、uminated in conditions approximating to diffuse daylight and is observed in front of a white background. Place the glass to be examined vertically in front of the screen. Arrange the point of observation 2 m from the glass, keeping the direction of observation normal to the glass surface. NOTE The p
44、resence of bubbles, ream, scratches and inclusions. Table 1 Tolerances on nominal width, B, height of flange, d, and thickness c Width, B (mm) Height of flange, d Thickness, c mm mm Nominal Tolerance Nominal Tolerance Nominal Tolerance 232 to 498 2,0 41 1,0 6 0,2 232 to 331 2,0 60 1,0 7 0,2 5.2.2 Wi
45、re faults A reference, e.g. line or straight edge, is placed parallel to the direction of the wires. The deviation, y, of the wire inlay in relation to this reference edge is measured (see Figure 4). Any penetration of the glass surface by the wire is noted. Any breaks in the wire are noted. EN 572-
46、7:2004 (E) 8 Out of square Waviness Bow Figure 4 Determination of wire deviation NOTE The scale of these drawings is exaggerated to be explicit. 5.3 Acceptance levels 5.3.1 Visual faults If any bubbles, ream, scratches or inclusions are noted. They are not allowed. 5.3.2 Wire faults The deviation, y
47、, (see Figure 4) shall not exceed 5 mm per metre. In no case is the wire inlay allowed to penetrate the surface. Breaks in the wire are not acceptable. 6 Designation Wired or unwired channel shaped glasses in compliance with this standard shall be designated respectively by: type (wired or unwired g
48、lass); tint (manufacturers reference) or clear; pattern (manufacturers reference) or not; nominal thickness in mm; nominal width, B, in mm; nominal height of flange, d, in mm; nominal length, H, in mm; reference to this Part of this standard. EXAMPLE Wired channel shaped glass, clear, pattern refere
49、nce PATTERN, thickness 6 mm, width 26,2 cm, height of flange 41 mm, length 1,50 m, intended for use in building, is designated as follows: Wired channel shaped glass - EN 572-7_- clear PATTERN, 6 mm, 262 mm, 41 mm, 1 500 mm. EN 572-7:2004 (E) 9 Bibliography EN 572-9, Glass in building Basic soda lime silicate glass products Part 9: Evaluation of conformity/Product standard BS EN 572-7:2004 BSI 389 Ch