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1、NF EN 12373-16 novembre 2001 Ce document est usage exclusif et non collectif des clients Saga Web. Toute mise en rseau, reproduction et rediffusion, sous quelque forme que ce soit, mme partielle, sont strictement interdites. This document is intended for the exclusive and non collective use of Saga
2、Web customers. All network exploitation, reproduction and re-dissemination,even partial, whatever the form (hardcopy or other media), is strictly prohibited. Saga Web Pour THALES CORPORATE SERVICES SAS - EPM Client 04988312 le 16/7/2009 10:15 AFNOR 2001AFNOR 20011st issue 2001-11-P AFNOR 2001 All ri
3、ghts reserved FE045107ISSN 0335-3931 NF EN 12373-16 November 2001 Classification index: A 91-455-16 European standard French standard Published and distributed by Association Franaise de Normalisation (AFNOR French standard institute) 11, avenue Francis de Pressens 93571 Saint-Denis La Plaine Cedex
4、Tel.: + 33 (0)1 41 62 80 00 Fax: + 33 (0)1 49 17 90 00 www.afnor.fr ICS: 25.220.20 Aluminium and aluminium alloys Anodizing Part 16: Check for continuity of thin anodic oxydation coatings Copper sulfate test F : Aluminium et alliages daluminium Anodisation Partie 16 : Contrle de la continuit des cou
5、ches anodiques minces Essai au sulfate de cuivre D : Aluminium und Aluminiumlegierungen Anodisieren Teil 16: Prfung der Kontinuitt dnner anodisch erzeugter Oxidschichten Kupfersulfatversuch French standard approved by decision of the Director General of AFNOR on October 5, 2001 taking effect on Nove
6、mber 5, 2001. Replaces the approved standard NF A 91-410 dated October 1966. CorrespondenceThe European standard EN 12373-16:2001 has the status of French standard. AnalysisThis document specifies a method to control the continuity of thin anodic coatings on alumuminium and alloys by copper sulfate
7、test. DescriptorsTechnical International Thesaurus: metal finishing, aluminium, aluminium alloys, anodizing, crack strength, anodic coating, strain measurement, inspection methods, metal plates, cracks. ModificationsWith respect to document replaced, adoption of the European standard. Corrections EU
8、ROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12373-16 May 2001 ICS 25.220.20; 77.120.10 English version Aluminium and aluminium alloys - Anodizing - Part 16: Check for continuity of thin anodic oxydation coatings - Copper sulfate test Aluminium et alliages daluminium - Anodisation - Partie 16:
9、 Contrle de la continuit des couches anodiques minces - Essai au sulfate de cuivre Aluminium und Aluminiumlegierungen - Anodisieren - Teil 16: Prfung der Kontinuitt dnner anodisch erzeugter Oxidschichten - Kupfersulfatversuch This European Standard was approved by CEN on 20 April 2001. CEN members a
10、re 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 obtained on application to
11、 the 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 Management Centre has the same statu
12、s as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARD
13、IZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12373-16:2001 E Page 2 EN 12373-16:2001 ContentsPage F
14、oreword3 1Scope .5 2Principle.5 3Reagent5 4Procedure.6 5Expression of results6 6Test report6 Page 3 EN 12373-16:2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys“ the Secretariat of which is held by AFNOR. This European Standard
15、shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2001, and conflicting national standards shall be withdrawn at the latest by November 2001. It is based on ISO 2085:1976. EN 12373, Aluminium and aluminium alloys
16、 Anodizing, comprises the following parts: Part 1:Method for specifying decorative and protective anodic oxidation coatings on aluminium Part 2:Determination of mass per unit area (surface density) of anodic oxidation coatings Gravimetric method Part 3:Determination of thickness of anodic oxidation
17、coatings Non-destructive measurement by split beam microscope Part 4:Estimation of loss of absorptive power of anodic oxidation coatings after sealing by dye spot test with prior acid treatment Part 5:Assessment of quality of sealed anodic oxidation coatings by measurement of admittance Part 6:Asses
18、sment of quality of sealed anodic oxidation coatings by measurement of the loss in mass after immersion in phosphoric acid/chromic acid solution without prior acid treatment Part 7:Assessment of quality of sealed anodic oxidation coatings by measurement of the loss in mass after immersion in phospho
19、ric acid/chromic acid solution with prior acid treatment Part 8:Determination of the comparative fastness to ultra-violet light and heat of coloured anodic oxidation coatings Part 9:Measurement of wear resistance and wear index of anodic oxidation coatings using an abrasive wheel wear test apparatus
20、 Part 10:Measurement of mean specific abrasion resistance of anodic oxidation coatings using an abrasive jet test apparatus Part 11:Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20?, 45?, 60? or 85? Page 4 EN 12373-16:2001 Part 12:Measurement of ref
21、lectance characteristics of aluminium surfaces using integrating-sphere instruments Part 13:Measurement of reflectivity characteristics of aluminium surfaces using a goniophotometer or an abridged goniophotometer Part 14:Visual determination of image clarity of anodic oxidation coatings Chart scale
22、method Part 15:Assessment of resistance of anodic oxidation coatings to cracking by deformation Part 16:Check for continuity of thin anodic oxidation coatings Copper sulfate test Part 17:Determination of electric breakdown potential Part 18:Rating system for the evaluation of pitting corrosion Chart
23、 method Part 19:Rating system for the evaluation of pitting corrosion Grid method According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, Fran
24、ce, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 5 EN 12373-16:2001 1Scope This Part of this European Standard specifies a method of checking the continuity of thin anodic oxidation coatings on aluminium
25、and its alloys by a copper sulfate contact test. The use of this method is limited to anodic oxidation coatings of less than 5 ?m thickness, or coatings that have been deformed. NOTE The method described enables a rapid check to be made for the continuity of a thin coating of aluminium oxide on alum
26、inium and its alloys. In cases of doubt regarding a visible fault on the surface of a coating, the use of this method makes it possible to verify whether the fault corresponds to a local gap in the coating which exposes bare metal. 2Principle Drops of copper sulfate reagent are placed on surface are
27、as of about 100 mm2, chosen at will on the test pieces, avoiding the anodizing contact areas. If the area includes points where the metal is either bare or poorly covered, chemical deposition of copper takes place on the aluminium, accompanied by a release of gas. The drops of applied reagent can be
28、 examined immediately upon application, either with the naked eye or with a magnifying glass, for the release of gas from points where the metal is bare, which is almost instantaneous. After the test, dark or reddish spots can be seen where the coating is not continuous. 3Reagent Copper sulfate solu
29、tion, prepared as follows: - copper (II) sulfate pentahydrate, (CuSO4.5H2O):20 g - hydrochloric acid, (? 1,18 g/ml):20 ml - distilled water:to 1 000 ml Page 6 EN 12373-16:2001 4Procedure Carry out the test at room temperature. Remove all grease from the test piece. Mark out a test area of approximat
30、ely 100 mm2 on a horizontal part of the test piece using a wax crayon or a rapidly drying lacquer to delineate the test area, leaving the test area itself unmasked. Cover the test area with reagent (see clause 3), using approximately four drops. Leave the reagent in contact with the surface for 5 mi
31、n, noting any release of gas, then rinse the area with clean water. Examine the surface and count the number of dark or reddish spots per 100 mm2. NOTE For a more quantitative measurement, the average diameter of the dark or reddish spots can also be estimated. 5Expression of results Record the numb
32、er of dark or reddish spots per 100 mm2 for each area examined and, if appropriate, their average diameter. 6Test report The test report shall include at least the following information: a) the type and identification of the product tested; b) a reference to this European Standard; c) the result of the test (see clause 5); d) anything unusual noticed during the determination; e) the date of the test.