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1、BRITISH STANDARD BS EN 572-3:1995 Glass in building Basic soda lime silicate glass products Part 3: Polished wired glass The European Standard EN 572-3:1994 has the status of a British Standard Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
2、 BS EN 572-3:1995 This British Standard, having been prepared under the direction of the Building and Civil Engineering Sector Board (B/-), was published under the authority of the Standards Board and comes into effect on 15 March 1995 BSI 07-1999 The following BSI references relate to the work on t
3、his standard: Committee reference B/520/1 Draft for comment 91/18123 DC ISBN 0 580 23619 6 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countrie
4、s: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standard FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization IcelandTechnologica
5、l Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade SpainAsociacin Esp
6、aola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:
7、00 2006, Uncontrolled Copy, (c) BSI BS EN 572-3:1995 BSI 07-1999i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 572-33 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-reference Insi
8、de back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 572-3:1995 ii BSI 07-1999 National foreword This Part of BS EN 572 has been prepared by Subcommittee B/520/1 and is the English language version of EN 572-3:1994 Glass in bu
9、ilding Basic soda lime silicate glass products Part 3: Polished wire glass, published by the European Committee for Standardization (CEN). It does not replace any current British Standard. EN 572-3 was produced as a result of international discussions in which the United Kingdom took an active part.
10、 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 document comprises
11、 a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licens
12、ed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 572-3 November 1994 ICS 81.040.20 Descriptors: Construction, glass, glassware, plate glass, wired glass, dimensions, dimensional tolerances, appea
13、rance, defects, quality acceptability, designation English version Glass in building Basic soda lime silicate glass products Part 3: Polished wire glass Verre dans la construction Produits de base: verre de silicate sodo-calcique Partie 3: Verre arm poli Glas im Bauwesen Basiserzeugnisse aus Kalk-Na
14、tronglas Teil 3: Poliertes Drahtglas This European Standard was approved by CEN on 1994-11-08. 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-da
15、te 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
16、 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands,
17、Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 572-3:1994 E Licensed
18、Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 572-3:1994 2 BSI 07-1999 Foreword This European Standard has been prepared by the Technical Committee CEN/TC 129, Glass in building, the Secretariat of which is held by IBN. CEN/TC 129/WG1, Basic gla
19、ss products, prepared a working draft based on the document ISO/TC 160, N56: Glass in buildings Basic product Part 3: Polished wired glass. This document was drawn up by ISO/TC 160, Glass in buildings. This European Standard shall be given the status of a national standard, either by publication of
20、an indentical text or by endorsement, at the latest by May 1995, and conflicting national standards shall be withdrawn at the latest by May 1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finla
21、nd, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 3.1Length, H, and width, B3 3.2Stock sizes3 3.3Optical faults3 3.4Visual faults3 3.5Spheri
22、cal or quasi-spherical spot faults3 3.6Elongated spot faults3 3.7Linear/extended faults3 3.8Wire faults3 3.9Deviation of the wire3 4Dimensional requirements3 4.1Thickness3 4.2Length, width and squareness4 4.3Wire mesh4 5Quality requirements4 5.1Methods of observation and measurement4 5.2Acceptance l
23、evels4 6Designation6 Figure 1 Relationship between length, width and direction of draw3 Figure 2 Determination of length, width and squareness5 Figure 3 Representations of the types of wire deviations6 Table 1 Limiting thicknesses4 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+
24、00:00 2006, Uncontrolled Copy, (c) BSI EN 572-3:1994 BSI 07-19993 1 Scope This Part of this European Standard specifies dimensional and minimum quality requirements (in respect of optical, visual and wire faults) for polished wired glass, as defined in EN 572-1, for use in building. This Part of thi
25、s standard applies only to polished wired glass supplied in rectangular panes and in stock sizes. This Part of this standard does not apply to glass in cut sizes for final end use. 2 Normative references This European Standard incorporates by dated or undated references, provisions from other public
26、ations. 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
27、. For undated references the latest edition of the publication referred to applies. EN 572-1, Glass in building Basic soda lime silicate glass products Part 1: Definitions and general physical and mechanical properties. 3 Definitions For the purposes of this standard the following definitions apply.
28、 3.1 length, H, and width, B these are defined with reference to the direction of draw of the glass ribbon as shown in Figure 1 3.2 stock sizes glass delivered in the following sizes: Nominal length H: 1 650 mm to 3 820 mm Nominal width B: 1 980 mm to 2 540 mm 3.3 optical faults these are faults whi
29、ch lead to distortions in the appearance of objects observed through the glass 3.4 visual faults these are faults which alter the visual quality of the glass. They include spot faults, linear/extended faults and wire faults 3.5 spherical or quasi-spherical spot faults these are spot faults whose lar
30、ger dimension is less than or equal to twice the smaller dimension 3.6 elongated spot faults these are spot faults whose larger dimension is more than twice the smaller dimension 3.7 linear/extended faults these faults can be on or in the glass, in the form of deposits, marks or scratches which occu
31、py an extended length or area 3.8 wire faults these are deviation of the wire, penetration of the glass surface by the wire or break in the wire in the body of the glass 3.9 deviation of the wire this is a deviation, y, of the wire in relation to a reference, e.g. line or straight edge 4 Dimensional
32、 requirements 4.1 Thickness The actual thickness shall be the average of four measurements, taken to the nearest 0,01 mm, one taken at the centre of each side. Measurement shall be by means of an instrument of the calliper micrometer type. Figure 1 Relationship between length, width and direction of
33、 draw Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 572-3:1994 4 BSI 07-1999 4.1.1 Tolerances The actual thickness, rounded to the nearest 0,1 mm shall not vary from the nominal thickness by more than the limits shown in Table 1. Table
34、1 Limiting thicknesses 4.2 Length, width and squareness The nominal dimensions for length, H, and width, B, being given, the pane should not be larger than a prescribed rectangle resulting from the nominal dimensions increased by the permissible plus tolerance or smaller than a prescribed rectangle
35、reduced by the permissible minus tolerance. The sides of the prescribed rectangles shall be parallel to one another and these rectangles shall have a common centre (see Figure 2). The limits of squareness shall also be prescribed by these rectangles. 4.2.1 Tolerances The tolerances on nominal dimens
36、ions are 4 mm. 4.3 Wire mesh This is a square steel mesh welded at all intersections of approximate dimensions 12,5 mm, manufactured from wire of diameter U 0,42 mm. 5 Quality requirements One quality level is considered in this standard. This is determined by evaluation of the optical and visual fa
37、ults. Many spot faults are associated with the wire, due to the incorporation of the wire into the glass. Spot faults can thus be distinguished by their relationship with the wire: distance from the wire 2 mm; distance from the wire k 2 mm, or in contact with the wire. There are three different type
38、s of deviation of the wire considered, which may occur simultaneously. They are shown in Figure 3 and are: out of square; waviness; bow. 5.1 Methods of observation and measurement 5.1.1 Optical faults The glass pane to be examined is placed 1 m from a bank of strip lights. The observer stands 2 m aw
39、ay from the glass pane. The strip lights are viewed through the glass and any disturbing distortions within the glass pane noted. 5.1.2 Visual faults 5.1.2.1 Spot faults Measure the dimensions of these faults with a micrometer with graduations in tenths of a millimetre. Note the number, dimensions a
40、nd concentration of the spot faults together with their relationship to the wire. 5.1.2.2 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 black screen. Place the pane of glass to be examined vertic
41、ally in front of the screen and parallel to it. Arrange the point of observation 2 m from the glass, keeping the direction of observation normal to the glass surface. View the pane of glass, and note the presence of visually disturbing faults. 5.1.2.3 Wire faults A reference, e.g. line or straight e
42、dge, is placed parallel to the direction of the wires. The deviation, y, of the wire in relation to this reference edge is measured (see Figure 3). Any penetration of the glass surface by the wire is noted. Any breaks in the wire are noted. 5.2 Acceptance levels 5.2.1 Optical faults The observer sho
43、uld not see any disturbing distortions within the glass pane. Nominal thickness (mm) Limiting values (mm) MinimumMaximum 66,07,4 109,110,9 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 572-3:1994 BSI 07-19995 5.2.2 Visual faults 5.2.2.1
44、 Spot faults a) Spherical and quasi-spherical spot faults situated in contact with the wire or k 2 mm from the wire. If the larger dimension is k 2,0 mm, they are acceptable without restriction. If the larger dimension is 2,0 mm and k 4,0 mm, they are acceptable up to 0,5 per m2. They are not accept
45、able if the larger dimension is 4,0 mm. b) Spherical or quasi-spherical spot faults situated 2,0 mm from the wire. If the larger dimension is k 1,0 mm, they are accepted without restriction. If the larger dimension is 1,0 mm and k 4,0 mm, they are acceptable up to 0,5 per m2. They are not acceptable
46、 if the larger dimension is 4,0 mm. c) Elongated spot faults of width k 1,0 mm. If their length is k 1,0 mm, they are acceptable without restriction. If their length is 1,0 mm and k 5,0 mm, they are acceptable if their number is k 10 per m2. If their length is 5,0 mm and k 10,0 mm. They are acceptab
47、le if their number is k 3 per m2. If their length is 10,0 mm and k 15,0 mm, they are acceptable if their number is k 2 per m2. They are not acceptable if their length is 15,0 mm. d) Elongated spot faults of width 1,0 mm. If the larger dimension is k 4,0 mm, they are acceptable up to 0,5 per m2. They
48、 are not acceptable if the larger dimension is 4,0 mm. 5.2.2.2 Linear/extended faults The allowable number of faults is an average of 0,05 faults in every 20 m2 of glass, related to at least 20 tonnes. 5.2.2.3 Wire faults The deviation, y, (see Figure 3) shall not exceed 15 mm per metre. NOTEThe def
49、ormation of the wires of each square of the mesh is not considered. No penetration of the surface is acceptable. Breaks in the wire are not acceptable. Figure 2 Determination of length, width and squareness Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 09:31:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 572-3:1994 6 BSI 07-1999 6 Designation Polished wired glass in compliance with this standard shall, be designated respectively by: type; nominal thickness in millimetres; nominal length, H, a