1、Glass in building Coated glass Part 1: Physical defects Verre dans la construction Verre couche Partie 1: Dfauts physiques ISO 2011 Reference number ISO 11479-1:2011(E) First edition 2011-10-01 ISO 11479-1 INTERNATIONAL STANDARDISO 11479-1:2011(E)COPYRIGHT PROTECTED DOCUMENT ISO 2011 All rights rese
2、rved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the reques
3、ter. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2011 All rights reservedISO 11479-1:2011(E)Contents Page Foreword iv 1 Scope 1 2 Terms and definitions . 1 2.1 Basic defini
4、tions 1 2.2 Definition of physical defects 2 3 Physical defects . 3 3.1 General . 3 3.2 Detection of defects 3 3.3 Conditions of examination 3 3.4 Punctual defects 5 3.5 Acceptance criteria for coated glass defects 6 Bibliography . 7 ISO 2011 All rights reserved iiiForeword ISO (the International Or
5、ganization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been establ
6、ished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardizati
7、on. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
8、 Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such pa
9、tent rights. ISO 11479-1 was prepared by Technical Committee ISO/TC 160, Glass in building, Subcommittee SC 1, Product considerations. ISO 11479 consists of the following parts, under the general title Glass in building Coated glass: Part 1: Physical defects Part 2: Colour of faade ISO 11479-1:2011(
10、E)iv ISO 2011 All rights reservedINTERNATIONAL STANDARD ISO 11479-1:2011(E)Glass in building Coated glass Part 1: Physical defects 1 Scope This part of ISO 11479 specifies optical quality requirements for coatings applied to glass using either pyrolytic, sol-gel or vacuum (sputtering) deposition met
11、hods for use in building glazing. More specifically, this part of ISO 11479 relates to low-e and solar-control coated glass. This part of ISO 11479 is not applicable to patterned or other optically distorting glass. 2 Terms and definitions For the purposes of this document, the following terms and d
12、efinitions apply. 2.1 Basic definitions 2.1.1 method of deposition method of adding a single or multilayer coating consisting of metal, oxide, nitride, fluoride or other compound to the surface of the glass by vacuum (sputtering), sol-gel or pyrolytic deposition 2.1.2 coated glass glass substrate to
13、 which a coating has been applied on one or both sides in order to modify one or more of its properties 2.1.3 coating one or more layers applied to the glass using either the pyrolytic, sol-gel or vacuum (sputtering) deposition method 2.1.4 finished size glass flat glass sheet cut to the dimensions
14、required for final fabrication or use 2.1.5 stock size glass jumbo size glass standard size of annealed flat glass sheet that may be cut down to a smaller finished size for fabrication 2.1.6 daylight illumination uniform overcast sky, with or without direct sunlight 2.1.7 glass substrate glass to wh
15、ich the coating is applied to either one or both sides NOTE Examples of glass substrates are: basic float glass (clear or body-tinted), thermally or chemically toughened safety glass, thermally toughened borosilicate safety glass, heat-strengthened glass, heat-strengthened borosilicate glass, lamina
16、ted glass, laminated safety glass, alkaline earth silicate glass, or toughened alkaline earth silicate glass. ISO 2011 All rights reserved 12.1.8 pyrolytic deposition online coating method of manufacture of a coating, whereby the coating is applied to hot glass, usually at the time of flat glass man
17、ufacturing 2.1.9 sol-gel coating offline coating method of manufacture of a coating, whereby the coating is applied to flat glass on a wet coating line 2.1.10 vacuum deposition offline coating method of manufacture of a coating, whereby the coating is applied to flat glass in a vacuum chamber 2.2 De
18、finition of physical defects 2.2.1 coating rub surface abrasion of appreciable width that has a partial or complete removal of the coating, producing a hazy appearance 2.2.2 corrosion change in the colour or level of reflected or transmitted light over all or part of the glass surface as a result of
19、 degradation of the coating from external sources 2.2.3 crazing conglomeration of fine lines or cracks in the coating 2.2.4 punctual defect punctual disturbance of the visual transparency when looking through the glass and of the visual reflectance when looking at the glass NOTE Spots, pinholes and
20、scratches are types of punctual defect. 2.2.5 spot punctual defect that commonly looks dark against the surrounding coating, when viewed in transmission 2.2.6 pinhole punctual void in the coating with partial or total absence of coating 2.2.7 scratch partial, or complete, removal of the coating alon
21、g a thin, straight or curved line 2.2.8 stain defect in the coating which is larger than a punctual defect, often irregularly shaped and partially of a mottled or patchy structure ISO 11479-1:2011(E)2 ISO 2011 All rights reserved3 Physical defects 3.1 General The defects specific to the coating and
22、the defects specific to the glass substrate that are more visible because of the coating shall be treated as coating defects. 3.2 Detection of defects 3.2.1 General The defects shall be detected visually by observing the coated glass in transmission and/or reflection. An artificial sky or daylight s
23、hall be used as the source of illumination. 3.2.2 Artificial sky An artificial sky is defined in CIE 13.3, and shall be obtained by using a light source whose correlated colour temperature is in the range between 4 000 K and 6 000 K. In front of the arrangement of light sources, there shall be a lig
24、ht-scattering panel, without spectral selectivity. The illuminance level on the glass surface shall be between 400 lx and 20 000 lx. 3.3 Conditions of examination 3.3.1 General Coated glass may be examined in either stock size plates or in finished sizes ready for installation. The examination may b
25、e undertaken in the coating factory, the fabrication factory, at the building site or on the building faade. The pane of coated glass being examined shall be viewed from a minimum distance of 3 m with illumination behind the observer for reflected observation, and behind the glass for transmitted ob
26、servation. The examination of the coated glass in reflection shall be performed by the observer looking at the side which will be the outside of the glazing. The examination of the coated glass in transmission shall be performed by the observer looking at the side that will be the inside of the glaz
27、ing. During the examination, the angle between the perpendicular to the surface of the coated glass and the light beam reaching the eyes of the observer after reflection or transmission by the coated glass shall not exceed 30, as shown in Figures 1 and 2. ISO 11479-1:2011(E) ISO 2011 All rights rese
28、rved 3 Key 1 illumination source 2 observer position 3 coated glass sample NOTE This is a plan view. Figure 1 Schematic for reflected light observation of coated glass Key 1 illumination source 2 observer position 3 coated glass sample NOTE This is a plan view. Figure 2 Schematic for transmitted lig
29、ht observation of coated glass 3.3.2 Central and edge areas for finished sizes For panes of coated glass in finished sizes ready to be installed, both the central area and an edge area of the pane shall be examined, as shown in Figure 3. ISO 11479-1:2011(E)4 ISO 2011 All rights reservedThe central a
30、rea shall be deemed to be the square or rectangle defined by the centre 80 % of the length and 80 % of the height dimensions centred on a pane of glass. The remaining area shall be deemed to be the edge area. Key 1 total edge area height is 20 % of H dimension (10 % + 10 %) 2 total edge area length
31、is 20 % of L dimension (10 % + 10 %) 3 central area length is 80 % of L dimension 4 central area height is 80 % of H dimension NOTE Each examination shall take no more than 20 s. Figure 3 Areas to be examined on finished sizes ready for glazing 3.3.3 Central and edge areas for stock and jumbo sheet
32、sizes For panes of coated glass in stock and jumbo sizes, the edge area shall be deemed to be a 10 cm border surrounding the entire pane. The central area shall be deemed to be the remaining area of the pane. 3.4 Punctual defects Under the conditions of examination given in 3.3, note any spots, pinh
33、oles and/or scratches that are noticeable. For spots or pinholes, measure the size and note the number relative to the size of the pane. If there are any clusters found, determine their position relative to the through-vision area. For scratches, determine whether or not they are in the central or e
34、dge area. Measure the length of any scratches noted. For scratches over 75 mm long, determine the distance between adjacent scratches. For scratches smaller than or equal to 75 mm long, note any area where their density is noticeable. ISO 11479-1:2011(E) ISO 2011 All rights reserved 53.5 Acceptance
35、criteria for coated glass defects When observed as described in 3.3.1, 3.3.2 and 3.3.3, the coated glass shall meet the acceptance criteria for defects given in Table 1. Table 1 Acceptance criteria for coated glass defects Defect types Acceptance criteria Central area Edge area Spots and pinholes 3,
36、0 mm: not allowed. 2,0 mm and 3,0 mm: no more than 1/m 2 . 2,0 mm: allowed. 3,0 mm: not allowed. 2,0 mm and 3,0 mm: no more than 1/m 2 . 2,0 mm: allowed. Scratches 75 mm: not allowed. 75 mm: allowed. 75 mm: allowed as long as they are not visually disturbing. 75 mm: allowed. Coating rub None 20 mm i
37、n the largest dimension Crazing None None Corrosion None None Stain None None As a global restriction, the total number of spots, pinholes and scratches shall be equal to or less than five per 300 mm 2 300 mm 2square region. ISO 11479-1:2011(E)6 ISO 2011 All rights reservedBibliography 1 ISO 11479-2
38、, Glass in building Coated glass Part 2: Colour of faade 2 Publication CIE 13.3-1995, Method of measuring and specifying colour rendering properties of light sources 1) 1) CIE Publications are available from the Commission Internationale de lclairage (CIE), Central Bureau, Kegelgasse 27 A - 1030 Wien, Austria. ISO 11479-1:2011(E) ISO 2011 All rights reserved 7ISO 11479-1:2011(E) ICS 81.040.20 Price based on 7 pages ISO 2011 All rights reserved
