1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 572-5:2012Glass in building Basic sodalime silicate glass productsPart 5: Patterned glassBS EN 572-5:2012 BRITISH STANDARDNational forewordThis British Standard is the UK i
2、mplementation of EN 572-5:2012. Itsupersedes BS EN 572-5:2004 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/520/1, Basic and transformed glass products.A list of organizations represented on this committee can beobtained on request to its secretary.
3、This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 76525 4ICS 81.040.20Compliance with a British Standard cannot confer
4、immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate Text affectedBS EN 572-5:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 572-5 July 2012 ICS 81.040.20
5、 Supersedes EN 572-5:2004English Version Glass in building - Basic soda lime silicate glass products - Part 5: Patterned glass Verre dans la construction - Produits de base: verre de silicate sodo-calcique - Partie 5: Verre imprim Glas im Bauwesen - Basiserzeugnisse aus Kalk-Natronsilicatglas - Teil
6、 5: Ornamentglas This European Standard was approved by CEN on 11 May 2012. 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 biblio
7、graphical 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 responsi
8、bility 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, Former Yugoslav Republ
9、ic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALI
10、SATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 572-5:2012: EBS EN 572-5:2012EN 572-5:2012 (E) 2 Contents Page Foreword 31 Scope 42 Nor
11、mative references 43 Terms and definitions .44 Dimensional requirements 54.1 Thickness .54.1.1 General 54.1.2 Tolerances 54.2 Length, width and squareness .65 Quality requirements .75.1 General 75.2 Methods of observation and measurement 75.2.1 Spot and linear/extended faults .75.2.2 Pattern faults
12、75.3 Acceptance levels 85.3.1 Spot faults 85.3.2 Linear/extended faults .85.3.3 Pattern faults 86 Designation 9Bibliography . 10BS EN 572-5:2012EN 572-5:2012 (E) 3 Foreword This document (EN 572-5:2012) has been prepared by Technical Committee CEN/TC 129 “Glass in building”, the secretariat of which
13、 is held by NBN. 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 January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013. Attention is drawn to the possib
14、ility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 572-5:2004. This document has been prepared under a mandate given to CEN by the European C
15、ommission and the European Free Trade Association. This edition is a revision of EN 572-5:2004. The main change in this edition is a new method of determination of squareness. This European Standard “Glass in building Basic soda lime silicate glass products” consists of the following parts: Part 1:
16、Definitions and general physical and mechanical properties; Part 2: Float glass; Part 3: Polished wired glass; Part 4: Drawn sheet glass; Part 5: Patterned glass; Part 6: Wired patterned glass; Part 7: Wired or unwired channel shaped glass; Part 8: Supplied and final cut sizes; Part 9: Evaluation of
17、 conformity/Product standard. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Repu
18、blic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 572-5:2012EN 572-5:2012 (E) 4 1 Scope This European
19、 Standard specifies dimensional and minimum quality requirements (in respect of visual and pattern faults) for patterned glass as defined in EN 572-1:2012, for use in building. This European Standard applies only to patterned glass supplied in rectangular panes and in stock sizes. EN 572-8 gives inf
20、ormation on patterned glass in sizes other than those covered by this European Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. F
21、or undated references, the latest edition of the referenced document (including any amendments) applies. EN 572-1:2012, Glass in building Basic soda lime silicate glass products Part 1: Definitions and general physical and mechanical properties 3 Terms and definitions For the purposes of this docume
22、nt, the terms and definitions given in EN 572-1:2012 and the following apply. 3.1 length, H, and width, B defined with reference to the direction of draw of the glass ribbon as shown in Figure 1 Key 1 direction of draw Figure 1 Relationship between length, width and direction of draw 3.2 stock sizes
23、 glass delivered in the following sizes: nominal length, H: 2 100 mm to 4 500 mm; nominal width, B: 1 260 mm to 2 520 mm Note 1 to entry: The maximum stock sizes available depend on the manufacturer and the pattern. BS EN 572-5:2012EN 572-5:2012 (E) 5 3.3 visual fault fault which alters the visual q
24、uality of the glass Note 1 to entry: Visual faults include spot faults, linear/extended faults and pattern faults. 3.4 spherical or quasi-spherical spot fault spot fault whose larger dimension is less than or equal to twice the smaller dimension 3.5 elongated spot fault spot fault whose larger dimen
25、sion is more than twice the smaller dimension 3.6 linear/extended fault fault which can be on or in the glass, in the form of deposits, marks or scratches which occupy an extended length or area 3.7 pattern fault deviations of the pattern relative to a reference, e.g. line or straight edge 3.8 devia
26、tion of the pattern deviation, x, of the pattern 4 Dimensional requirements 4.1 Thickness 4.1.1 General The actual thickness shall be the average of four measurements, taken to the nearest 0,01 mm, one taken at the thickest and closest point to the centre of each side. Measurement shall be by means
27、of an instrument of the plate gauge type with a diameter of (50 5) mm. NOTE The mechanical resistance of patterned glass is a function of the pattern as well as the thickness. 4.1.2 Tolerances The actual thickness rounded to the nearest 0,1 mm shall not vary from the nominal thickness by more than t
28、he tolerances shown in Table 1. BS EN 572-5:2012EN 572-5:2012 (E) 6 Table 1 Tolerances on nominal thickness Dimensions in millimetres Nominal thickness Tolerances 3 0,54 0,55 0,56 0,58 0,810 1,012 1,514 1,515 1,519 2,04.2 Length, width and squareness The tolerances, t, on the nominal dimensions leng
29、th, H, and width, B, are dependant on the thickness of the glass and are shown in Table 2. Table 2 Tolerances, t, on length, H, and width, B, according to the nominal thickness of the glass Dimensions in millimetres Nominal thickness Tolerances, t 3 3 4 5 6 8 4 10 12 5 14 15 19 BS EN 572-5:2012EN 57
30、2-5:2012 (E) 7 The limits of squareness are described by the difference between diagonals. Such limits are given in Table 3. Table 3 Limit on the difference between diagonals Dimensions in millimetres Nominal glass thickness, d Limit on the difference between diagonals Stock sizes Splits (H, B) 1 50
31、0 1 500 3 000 3, 4, 5, 6 3 4 5 8, 10, 12 4 5 6 14, 15, 19 5 6 8 5 Quality requirements 5.1 General One quality level is considered in this European Standard. This is determined by evaluation of the visual faults. There are three different types of pattern faults considered which may occur simultaneo
32、usly. They are shown in Figure 2 and are a) out of square, b) waviness, c) bow. 5.2 Methods of observation and measurement 5.2.1 Spot and linear/extended faults The glass pane to be examined is illuminated in conditions approximating to diffuse daylight and is observed in front of a matt grey screen
33、. Place the pane of glass to be examined vertically 3 m in front of the parallel to the screen. Arrange the point of observation 1,5 m from the glass, keeping the direction of observation normal to the glass surface. View the pane of glass, and note the presence of the following visually disturbing
34、faults. a) Spot faults: Measure the dimensions of these faults with a micrometer with graduations in tenths of a millimetre. Note the number, dimensions and concentration of the spot faults. b) Linear/extended faults: Note the number of these faults. 5.2.2 Pattern faults A reference, e.g. line or st
35、raight edge, is placed on the glass as shown in Figure 2. The deviation, x, of the pattern in relation to this reference is measured. BS EN 572-5:2012EN 572-5:2012 (E) 8 a) Out of square b) Waviness c) BowNOTE The scale of these drawings has been exaggerated in order to be explicit about the types o
36、f deviation. Figure 2 Representations of the types of pattern faults 5.3 Acceptance levels 5.3.1 Spot faults Spot faults are categorized and found to be acceptable or not acceptable as follows: a) Spherical and quasi-spherical spot faults: 1) If the larger dimension is 2,0 mm, they are acceptable wi
37、th restriction; 2) If the larger dimension is 2,0 mm and 5,0 mm, they are acceptable up to 2 in any 1 m 1 m area; 3) They are not acceptable if the larger dimension is 5,0 mm. b) Elongated spot faults of width 2,0 mm: 1) If their length is 4,0 mm, they are acceptable without restriction; 2) If their
38、 length is 4,0 mm and 25,0 mm, they are acceptable if the sum of the lengths is 100 mm in any 1 m 1 m area; 3) They are not acceptable if the length is 25,0 mm. c) Elongated spot faults of width 2,0 mm: 1) If the larger dimension is 8,0 mm, they are acceptable up to 2 in any 1 m 1 m area; 2) They ar
39、e not acceptable if the larger dimension is 8,0 mm. 5.3.2 Linear/extended faults The number of allowable faults is an average of 0,05 faults in 20 m2of glass related to at least 20 t. 5.3.3 Pattern faults The deviation of the pattern, x, (see Figure 2) shall not exceed 12 mm per metre. BS EN 572-5:2
40、012EN 572-5:2012 (E) 9 6 Designation Patterned glass in compliance with this European Standard shall be designated respectively by: type, reference to this European Standard, tint (manufacturers reference) or clear, pattern (manufacturers reference), nominal thickness in mm, nominal length, H, and w
41、idth, B, in mm. EXAMPLE Patterned glass, pattern reference PATTERN, clear, thickness 4 mm, length 4,50 m, width 1,60 m, intended for use in buildings, is designated as follows: Patterned glass - EN 572-5 - clear PATTERN, 4 mm, 4 500 mm 1 600 mm BS EN 572-5:2012EN 572-5:2012 (E) 10 Bibliography 1 EN
42、572-8, Glass in building Basic soda lime silicate glass products Part 8: Supplied and final cut sizes This page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services. It presents the
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