EN ISO 10215-2018 Anodizing of aluminium and its alloys - Visual determination of image clarity of anodic oxidation coatings - Chart scale method.pdf

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1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Anodizing of aluminium and its alloys - Visual determination of image clarity of anodic oxidation coatings - Chart scale methodBS EN ISO 10215:2018National forewordThis British Standard is the UK implementation of EN IS

2、O 10215:2018. It is identical to ISO 10215:2018. It supersedes BS EN ISO 10215:2010, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/33, Electrodeposited and related coatings.A list of organizations represented on this committee can be obtained on

3、request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 95644 7ICS 25.220.20Compliance with a Brit

4、ish Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 10215:2018EUROPEAN STANDARDNORM

5、E EUROPENNEEUROPISCHE NORMEN ISO 10215March 2018ICS 25.220.20 Supersedes EN ISO 10215:2010EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2018 CEN Ref. No. EN ISO 10215:2018: EAll right

6、s of exploitation in any form and by any means reserved worldwide for CEN national MembersAnodizing of aluminium and its alloys - Visual determination of image clarity of anodic oxidation coatings - Chart scale method (ISO 10215:2018)Anodisation de laluminium et de ses alliages - Dtermination de la

7、nettet dimage sur couches anodiques - Mthode des chelles gradues (ISO 10215:2018)Anodisieren von Aluminium und Aluminiumlegierungen - Visuelle Bestimmung der Abbildungsschrfe von anodisch erzeugten Oxidschichten - Messgittermethode (ISO 10215:2018)This European Standard was approved by CEN on 16 Mar

8、ch 2018.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 obtai

9、ned 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 responsibility of a CEN member into its own language and notified to the CEN-

10、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 Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, I

11、taly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 10215:2018 (E)European forewordThis document (EN ISO 10215:2018) has been prepared by Technical Committe

12、e ISO/TC 79 “Light metals and their alloys“ in collaboration with Technical Committee CEN/TC 132 “Aluminium and aluminium alloys”, the secretariat of which is held by AFNOR.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endor

13、sement, at the latest by September 2018, and conflicting national standards shall be withdrawn at the latest by September 2018.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any o

14、r all such patent rights.This document supersedes EN ISO 10215:2010.According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark,

15、Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.Endorsement

16、noticeThe text of ISO 10215:2018 has been approved by CEN as EN ISO 10215:2018 without any modification.2BS EN ISO 10215:2018ISO 10215:2018Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus . 26 Test specimen 56.1 Sampling . 56.2 Size 56.3

17、 Treatment before testing 57 Procedure. 57.1 General . 57.2 Determination of image clearness, C 57.3 Determination of image distortion, I 67.4 Determination of haze value, Hn. 68 Expression of results 69 Test report . 7Bibliography 8 ISO 2018 All rights reserved iiiContents PageBS EN ISO 10215:2018I

18、SO 10215:2018ForewordISO (the International Organization 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 f

19、or which a technical committee has been established 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

20、 all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted.

21、 This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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

22、 or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of use

23、rs and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barrier

24、s to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 79, Light metals and their alloys, Subcommittee SC 2, Organic and anodic oxidation coatings on aluminium.This third edition cancels and replaces the second edition (ISO 1021

25、5:2010), which has been technically revised.The main changes compared to the previous edition are as follows: the normative reference of ISO/TR 8125 has been deleted since it has been withdrawn; ISO/TR 8125:1984, Table 2 has been added as Table 2; the specification of the test specimen has been revi

26、sed.iv ISO 2018 All rights reservedBS EN ISO 10215:2018ISO 10215:2018IntroductionEstimation of the image clarity of anodic oxidation coatings on aluminium and its alloys is normally carried out visually by observing the clearness of an image on the surface. However, the image can be observed at vari

27、ous angles and can be confused with the gloss level of a surface; and while the degree of image clarity is mainly influenced by the clearness of the coating, it is also affected by image distortion caused by surface irregularities and the haziness of the coating layer. Standardized methods of determ

28、ining image clarity are therefore required.This document specifies the use of a chart scale based on optical combs, together with a lightness scale to rank image clarity, and has been found to give good correlation with visual evaluation. A related document, ISO 10216, specifies an instrumental meth

29、od of measuring image clarity, also by using optical combs. The instrumental method provides a more accurate measurement of image clarity than visual evaluation and should be used in cases of dispute. ISO 2018 All rights reserved vBS EN ISO 10215:2018This page deliberately left blankAnodizing of alu

30、minium and its alloys - Visual determination of image clarity of anodic oxidation coatings - Chart scale method1 ScopeThis document specifies a visual method for determining the image clarity of anodic oxidation coatings on aluminium and its alloys, using a chart scale and a lightness scale, which a

31、re defined. The method is applicable only to flat surfaces that can reflect the image of the chart scale pattern.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references,

32、only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 7583, Anodizing of aluminium and its alloys Terms and definitions3 Terms and definitionsFor the purposes of this document, the terms and definitions given in I

33、SO 7583 and the following apply.ISO and IEC maintain terminological databases for use in standardization at the following address: ISO Online browsing platform: available at https:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/3.1image clarityC vability of the surface of

34、an anodic oxidation coating to produce a clear image of an object reflected in the surfaceNote 1 to entry: In the method described in this document, image clarity is represented by a symbol Cvand is expressed as a numerical unit which is calculated by taking into account the image clearness, the ima

35、ge distortion and the haze value (see Clause 8).3.2image clearnessC limit of visual resolution of fine details of a chart scale when reflected by a surface, given by the grade number on the chart scaleNote 1 to entry: Image clearness relies heavily on the roughness of the surface being measured, and

36、 the lower the roughness the clearer or sharper the image becomes, i.e. the nearer the surface becomes to a perfect mirror, the clearer the image becomes.INTERNATIONAL STANDARD ISO 10215:2018 ISO 2018 All rights reserved 1BS EN ISO 10215:2018ISO 10215:20183.3image distortionI degree of distortion of

37、 an image caused by the waviness of a surface, given by the grade number on the chart scaleNote 1 to entry: Image distortion depends on the evenness of the surface being measured. The distortion occurs because part of the incident light is reflected in a direction different from that of the bulk of

38、the light due to an uneven surface. Even if the surface is mirror-finished, it will present a distorted image if waviness is present.3.4haze valueH ndegree of opacity of the coating on a surface, expressed as a lightness unitNote 1 to entry: Haze represents the opacity or transparency of the coating

39、 layer. Poor transparency causes absorption and scattering of normally reflected light, thus reducing the clarity of the image.4 PrincipleThe image clarity of an anodic oxidation coating is determined by visual estimation of three properties of the coating layer: image clearness, image distortion an

40、d haze. These properties are determined by evaluating the image of a chart scale on the test specimens.5 Apparatus5.1 Chart scale, as shown in Figure 1, comprising a translucent plastic film or glass on which a pattern of optical combs is arranged using black and white lines with a range of specifie

41、d widths (Grades 1 to 11). The light transmittance of the dark lines should be virtually zero.The widths of the black lines, and the spaces between two adjoining black lines, for each grade, are the same and the lines are perfectly parallel. The lines for Grade 1 are the widest and those for Grade 1

42、1 are the narrowest. The widths of the lines for each grade are given in Table 1.NOTE The widths of lines for Grades 1 to 7 form an arithmetical progression. The grades above Grade 7 are used for estimating comparatively high image clarity and Grades 7, 9 and 11 form a geometrical progression. Grade

43、 8 is the median of Grades 7 and 9, and Grade 10 is the median of Grades 9 and 11.Figure 1 Chart scale with Grades 1 to 112 ISO 2018 All rights reservedBS EN ISO 10215:2018ISO 10215:2018Table 1 Width of lines for each grade of the chart scaleGrade 1 2 3 4 5 6 7 8 9 10 11Width mm2,0 1,75 1,5 1,25 1,0

44、 0,75 0,5 0,375 0,25 0,188 0,1255.2 Observation box, as shown in Figures 2 and 3, which accommodates the chart scales used. It has a window in which the scale (Grades 1 to 11) may be set, and an observation window on the other side. The window for the test specimens is at the base of the box.Dimensi

45、ons in millimetres, unless otherwise indicatedKey1 lamp box 7 power switch2 chart scale 8 observation window3 source of white light 9 test specimen4 air vent 10 lightness scale5 lens 39,5 mm, focus 50 mm 2 mm 11 power source6 diffuser aAir.Figure 2 Diagram of a typical observation box ISO 2018 All r

46、ights reserved 3BS EN ISO 10215:2018ISO 10215:2018Dimensions in millimetresKey1 lamp box 4 test specimen2 chart scale 5 observation window3 lightness scale 6 power switchFigure 3 Appearance of typical observation box5.3 Lightness scale, a neutral scale which has 18 lightness chips ranging from Hn= 9

47、,5 to Hn= 1,0, with a pitch of 0,5; the value of each chip is assigned according to Table 2.NOTE Manufacturers often use symbol V instead of Hnon lightness chips.Table 2 Lightness scaleH nL*aH nL*aH nL*a9,5 96,00 6,5 66,67 3,5 36,009,0 91,08 6,0 61,70 3,0 30,778,5 86,21 5,5 56,66 2,5 25,618,0 81,35

48、5,0 51,58 2,0 20,547, 5 76,48 4,5 46,41 1,5 15,607,0 71,60 4,0 41,22 1,0 10,63aL* are determined in accordance with ISO 11664-3.4 ISO 2018 All rights reservedBS EN ISO 10215:2018ISO 10215:20186 Test specimen6.1 SamplingThe test specimen shall be taken from a significant flat surface of the product,

49、and shall not be taken from the part of edge for possible distortion and/or non-uniformity.Where it is impossible to test the product itself, a test specimen which is representative of the product may be used. In this case, the test specimen used shall be made from the same material and prepared under the same conditions of finishing as those used for the preparation of the product.The aluminium alloy, the manufacturing conditions (kind and temper of the material) and the surface condition before treatment should be the same