SIST EN 13523-8:2003
(Main)Coil coated metals - Test methods - Part 8: Resistance to salt spray (fog)
Coil coated metals - Test methods - Part 8: Resistance to salt spray (fog)
This Part of EN 13523 defines terms of the procedure for determining the resistance to salt spray (fog) of an organic coating on a metallic substrate.
For steel neutral salt spray (fog) is usually used, and for aluminium acetic acid salt spray (fog).
Bandbeschichtete Metalle - Prüfverfahren - Teil 8: Beständigkeit gegen Salzsprühnebel
Dieser Teil von EN 13523 beschreibt das Verfahren zum Bestimmen der Beständigkeit einer organischen Beschichtung auf einem metallischen Substrat gegen Salzsprühnebel.
Neutraler Salzsprühnebel wird im allgemeinen für Stahl benutzt, Essigsäure-Salzsprühnebel für Aluminium.
Tôles prélaquées - Méthodes d'essai - Partie 8 : Résistance au brouillard salin
La présente partie de l'EN 13523 décrit le mode opératoire permettant de déterminer la résistance au brouillard salin d'un revetement organique sur un substrat métallique.
Pour l'acier, on utilise généralement un brouillard salin neutre, et pour l'aluminium un brouillard salin d'acide acétique.
Kovine, zaščitene po postopku coil-coating - Metode preskušanja - 8. del: Odpornost proti slani meglici
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bandbeschichtete Metalle - Prüfverfahren - Teil 8: Beständigkeit gegen SalzsprühnebelTôles prélaquées - Méthodes d'essai - Partie 8 : Résistance au brouillard salinCoil coated metals - Test methods - Part 8: Resistance to salt spray (fog)25.220.60Organske prevlekeOrganic coatings17.040.20Lastnosti površinProperties of surfacesICS:Ta slovenski standard je istoveten z:EN 13523-8:2002SIST EN 13523-8:2003en01-januar-2003SIST EN 13523-8:2003SLOVENSKI
STANDARD
SIST EN 13523-8:2003
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13523-8July 2002ICS 17.040.20; 25.220.60English versionCoil coated metals - Test methods - Part 8: Resistance to saltspray (fog)Tôles prélaquées - Méthodes d'essai - Partie 8: Résistanceau brouillard salinBandbeschichtete Metalle - Prüfverfahren - Teil 8:Beständigkeit gegen SalzsprühnebelThis European Standard was approved by CEN on 11 April 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13523-8:2002 ESIST EN 13523-8:2003
EN 13523-8:2002 (E)2ForewordThis document EN 13523-8:2002 has been prepared by Technical Committee CEN/TC 139 "Paints and varnishes",the secretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by January 2003, and conflicting national standards shall be withdrawn at the latestby January 2003.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,Sweden, Switzerland and the United Kingdom.1 ScopeThis Part of EN 13523 defines terms of the procedure for determining the resistance to salt spray (fog) of anorganic coating on a metallic substrate.For steel neutral salt spray (fog) is usually used, and for aluminium acetic acid salt spray (fog).2 Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text, and the publications are listed hereafter. Fordated references, subsequent amendments to or revisions of any of these publications apply to this EuropeanStandard only when incorporated in it by amendment or revision. For undated references the latest edition of thepublication referred to applies (including amendments).EN 13523-0:2001, Coil coated metals — Test methods — Part 0: General introduction and list of test methods.EN 13523-7:2001, Coil coated metals — Test methods — Part 7: Resistance to cracking on bending (T-bend test).prEN 13523-191), Coil coated metals — Test methods — Part 19: Panel design and method for atmosphericexposure testing.EN 23270:1991, Paints and varnishes and their raw materials — Temperatures and humidities for conditioning andtesting (ISO 3270:1984).EN ISO 3696:1995, Water for analytical laboratory use — Specifications and test methods (ISO 3696:1987).ISO 4628-2:1982, Paints and varnishes — Evaluation of degradation of paint coatings — Designation of intensity,quantity and size of common types of defect — Part 2: Designation of degree of blistering.ISO 7253:1996, Paints and varnishes — Determination of resistance to neutral salt spray (fog).ISO 9227:1990, Corrosion tests in artificial atmospheres — Salt spray tests.
1)In preparation.SIST EN 13523-8:2003
EN 13523-8:2002 (E)3IEC 60454-2, Specifications for pressure-sensitive adhesive tapes for electrical purposes — Part 2: Methods oftest.3 Terms and definitionsFor the purposes of this Part of EN 13523, the terms and definitions given in EN 13523-0:2001 apply.4 PrincipleA test specimen is exposed to a salt spray (fog) for a specified period of time and assessed for possible corrosionexpressed by a degree of delamination or corrosion creep and a degree of blistering.5 Apparatus and materials5.1
Salt spray cabinet, in accordance with ISO 7253:1996 and ISO 9227:1990, calibrated in accordance with ISO7253:1996, annex C.5.2
Test solution, as specified in 5.2.1 or 5.2.2 respectively.5.2.1
For neutral salt spray fog, the test solution shall be prepared by dissolving sodium chloride in water of atleast grade 3 purity as defined in EN ISO 3696:1995 to produce a concentration of (50 ± 5) g/l. The sodium chlorideshall be white, of minimum assay 99,6 % (by mass), and substantially free from copper and nickel; it shall containnot more than 0,1 % (by mass) of sodium iodide. If the pH of the solution is outside the range 6,0 to 7,0, thepresence of undesirable impurities in the salt or the water or both shall be investigated. The pH of the test solutionshall be adjusted so that the pH of sprayed solution collected within the salt spray cabinet (5.1) is between 6,5 and7,2. Any necessary adjustment to the pH shall be made by additions of solutions of either hydrochloric acid orsodium bicarbonate of analytical grade.5.2.2
For acetic acid salt spray (fog), add a sufficient amount of glacial acetic acid to the sodium chloride solution(5.2.1) to ensure that the pH of sprayed solution collected within the salt spray cabinet (5.1) is between 3,1 and 3,3.If the pH of the solution initially prepared is 3,0 to 3,1, the pH of the sprayed solution is likely to be within thespecified limits.NOTEUnder normal conditions, the level of glacial acetic acid required is approximately 0,3 % (by mass).5.3
Cutting tool, with a hard metal tip (according to Clemen). The scratch shall have an upwards-broadeningcross section which shows a width of approx. 1 mm of the substrate.NOTEIf the substrate is zinc- or zinc-alloy coated steel, the scratch is then to the zinc coating, and not further, to the steel.5.4
Transparent pressure-sensitive adhesive tape, 25 mm wide, with an adhesion strength of (10 ± 1) N per25 mm width when tested in accordance with IEC 60454-2.5.5
Sharp drill bit, of diameter approximately 5 mm for creating the hole.5.6
Appropriate pressing (bending) apparatus, as described in prEN 13523-19, 5.2, or EN 13523-7:2001, 5.1.2.6 SamplingSee EN 13523-0:2001.SIST EN 13523-8:2003
EN 13523-8:2002 (E)47 Test specimens7.1 GeneralSee EN 13523-0:2001.Design of the specimens:- there are two options (7.2 and 7.3) bot
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