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    DIN EN 13523-27-2017 Coil coated metals - Test methods - Part 27 Resistance to humid poultice (Cataplasm test) German version EN 13523-27 2017《卷材镀层金属 试验方法 第27部分 耐潮涂覆剂(巴布剂试验) 德文版本EN.pdf

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    DIN EN 13523-27-2017 Coil coated metals - Test methods - Part 27 Resistance to humid poultice (Cataplasm test) German version EN 13523-27 2017《卷材镀层金属 试验方法 第27部分 耐潮涂覆剂(巴布剂试验) 德文版本EN.pdf

    1、June 2017 English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25.220.60!%g%“2680204www.din.deDIN E

    2、N 13523-27Coil coated metals Test methods Part 27: Resistance to humid poultice (Cataplasm test);English version EN 1352327:2017,English translation of DIN EN 13523-27:2017-06Bandbeschichtete Metalle Prfverfahren Teil 27: Bestndigkeit gegen feuchte Verpackung (KataplasmaTest);Englische Fassung EN 13

    3、52327:2017,Englische bersetzung von DIN EN 13523-27:2017-06Tles prlaques Mthodes dessai Partie 27: Rsistance la corrosion sous cataplasme (essai au cataplasme);Version anglaise EN 1352327:2017,Traduction anglaise de DIN EN 13523-27:2017-06SupersedesDIN EN 1352327:200910www.beuth.deDocument comprises

    4、 11 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.06.17DIN EN 13523-27:2017-06 2 A comma is used as the decimal marker. National foreword This document (EN 13523-27:2017) has been prepared by Technical Committee CEN/TC 139 “P

    5、aints and varnishes” (Secretariat: DIN, Germany), Working Group WG 9 “Testing of coil coated metals” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Mater

    6、ials), Working Committee NA 002-00-07 AA “General test methods for coating materials and coatings”. The European Standards referred to in this document have been published as DIN EN or DIN EN ISO Standards with the same number. EN ISO 3696 has been published as DIN ISO 3696. Amendments This standard

    7、 differs from DIN EN 13523-27:2009-10 as follows: a) the description of the buffer solution has been amended; b) the text has been editorially revised and normative references have been updated. Previous editions DIN EN 13523-27: 2009-10 National Annex NA (informative) Bibliography DIN ISO 3696, Wat

    8、er for analytical laboratory use Specification and test methods EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13523-27 April 2017 ICS 25.220.60 Supersedes EN 13523-27:2009English Version Coil coated metals - Test methods - Part 27: Resistance to humid poultice (Cataplasm test) Tles prlaques -

    9、 Mthodes dessai - Partie 27: Rsistance la corrosion sous cataplasme (essai au cataplasme) Bandbeschichtete Metalle - Prfverfahren - Teil 27: Bestndigkeit gegen feuchte Verpackung (Kataplasma-Test) This European Standard was approved by CEN on 18 December 2016. CEN members are bound to comply with th

    10、e 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 the CEN-CENELEC Managemen

    11、t 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-CENELEC Management Centre has the same status

    12、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, Italy, Latvia, Lithuania, Luxembourg, Malta, N

    13、etherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017

    14、 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13523-27:2017 EEN 13523-27:2017 (E) 2 Contents Page European foreword . 3 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Principle . 5 5 Apparatus and materials 5 6

    15、 Sample preparation 6 7 Procedure. 7 7.1 Exposure . 7 7.2 Evaluation 7 8 Expression of results 7 8.1 Overall surface (flat test surface) 7 8.2 Edges 7 9 Test report . 8 Bibliography 9 DIN EN 13523-27:2017-06 EN 13523-27:2017 (E) 3 European foreword This document (EN 13523-27:2017) has been prepared

    16、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 or by endorsement, at the latest by October 2017, and conflicting national standards

    17、shall be withdrawn at the latest by October 2017. 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 or all such patent rights. This document supersedes EN 13523-27:2009. The main

    18、 changes are: a) the description of the buffer solution was amended; b) the text has been revised editorially and the normative references have been updated. The EN 13523 series, Coil coated metals Test methods, consists of the following parts: Part 0: General introduction Part 1: Film thickness Par

    19、t 2: Gloss Part 3: Colour difference Instrumental comparison Part 4: Pencil hardness Part 5: Resistance to rapid deformation (impact test) Part 6: Adhesion after indentation (cupping test) Part 7: Resistance to cracking on bending (T-bend test) Part 8: Resistance to salt spray (fog) Part 9: Resistan

    20、ce to water immersion Part 10: Resistance to fluorescent UV radiation and water condensation Part 11: Resistance to solvents (rubbing test) Part 12: Resistance to scratching Part 13: Resistance to accelerated ageing by the use of heat Part 14: Chalking (Helmen method) Part 15: Metamerism DIN EN 1352

    21、3-27:2017-06 EN 13523-27:2017 (E) 4 Part 16: Resistance to abrasion Part 17: Adhesion of strippable films Part 18: Resistance to staining Part 19: Panel design and method of atmospheric exposure testing Part 20: Foam adhesion Part 21: Evaluation of outdoor exposed panels Part 22: Colour difference V

    22、isual comparison Part 23: Resistance to humid atmospheres containing sulfur dioxide Part 24: Resistance to blocking and pressure marking Part 25: Resistance to humidity Part 26: Resistance to condensation of water Part 27: Resistance to humid poultice (Cataplasm test) Part 29: Resistance to environm

    23、ental soiling (Dirt pick-up and striping) According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Y

    24、ugoslav 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. DIN EN 13523-27:2017-06 EN 13523-27:2

    25、017 (E) 5 1 Scope This part of the EN 13523 series specifies a procedure for evaluating the resistance of an organic coating on a metallic substrate (coil coating) in conditions of extreme humidity (acid, alkaline and/or neutral). 2 Normative references The following documents, in whole or in part,

    26、are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13523-0, Coil coated metals - Test methods - Part

    27、0: General introduction EN ISO 4628-2, Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 2: Assessment of degree of blistering (ISO 4628-2) EN ISO 4628-3, Paints and varnishes - Evaluat

    28、ion of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 3: Assessment of degree of rusting (ISO 4628-3) EN ISO 4628-5, Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of def

    29、ects, and of intensity of uniform changes in appearance - Part 5: Assessment of degree of flaking (ISO 4628-5) EN ISO 4628-10, Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, and of intensity of uniform changes in appearance - Part 10: Asse

    30、ssment of degree of filiform corrosion (ISO 4628-10, Corrected version 2016-06-01) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13523-0 apply. 4 Principle A test specimen is exposed to an enclosed humid environment for a pre-determined time, at a s

    31、pecified temperature. The test panel is evaluated for any uniform or local change such as blistering or corrosion (e.g. red rust, white rust). 5 Apparatus and materials 5.1 Purified absorbent cotton-wool, single layer, of rectangular shape of about 250 mm 650 mm and weighing (22,5 2,5) g. 5.2 Heat r

    32、esistant and thermally sealable waterproof plastics bag and the relevant sealing equipment. The plastics bag can be made of polyethylene, for example, and should be at least 0,22 mm thick. DIN EN 13523-27:2017-06 EN 13523-27:2017 (E) 6 5.3 Specific solution. For a neutral humid environment, deionise

    33、d water with an electrical conductivity less than 0,5 mS/m (see also EN ISO 3696); for an acid humid environment, a standard buffer solution of pH 4; for an alkaline humid environment, a standard buffer solution of pH 9. The composition of the standard buffer solutions shall be agreed prior to testi

    34、ng, because it may influence the test result. It shall be stated in the test report. 5.4 Oven, capable of maintaining a temperature of (70 3) C. 6 Sample preparation Four test specimens, typically 75 mm 150 mm, are necessary for the material under test in each humid environment. They shall be flat a

    35、nd free from contamination. Sampling shall be performed according to EN 13523-0. If not otherwise specified, the edges of exposed panels shall be sheared with the burrs away from the test surface. Wrap the test specimens in the cotton-wool as follows: Place the first two test specimens on the cotton

    36、-wool, with the test surface facing down (see Figure 1): Key 1 test specimens 2 cotton-wool Figure 1 1st layer Fold the cotton-wool and place the last two test specimens, with the test surface facing up (see Figure 2): Figure 2 2nd layer DIN EN 13523-27:2017-06 EN 13523-27:2017 (E) 7 Fold the cotton

    37、-wool over the last test specimens (see Figure 3): a) Top view b) Side view Key 1 test specimens 2 coating to be tested Figure 3 3rd layer Place the test specimens wrapped in the cotton-wool in the plastics bag and add (270 5) g (i.e. 12 the mass of the cotton wool) of the solution (5.3). Carefully

    38、flatten the bag manually and seal it thermally in order to minimize losses. 7 Procedure 7.1 Exposure Pre-heat the oven to (70 3) C. Place the plastic bag with specimens horizontally inside the oven. Maintain the oven temperature at (70 3) C for the duration of the test (7 or 14 days, as agreed or sp

    39、ecified), during which time the bag shall not be opened. 7.2 Evaluation Remove the bag from the oven and allow it to cool down to ambient temperature. Once cooled, open the bag as soon as possible. Remove the specimens and wipe away surface moisture with a soft tissue. Evaluate the specimens without

    40、 further delay. 8 Expression of results 8.1 Overall surface (flat test surface) Inspect the overall surface for blistering in accordance with EN ISO 4628-2. 8.2 Edges Describe and measure the type of defect (blistering, white or red rust, flaking, filiform corrosion) in accordance with EN ISO 4628-2

    41、, EN ISO 4628-3, EN ISO 4628-5 and EN ISO 4628-10. DIN EN 13523-27:2017-06 EN 13523-27:2017 (E) 8 9 Test report The test report shall contain at least the following information: a) all details necessary to identify the product tested; b) a reference to this part of the EN 13523 series (EN 13523-27);

    42、 c) the applied test conditions (composition of standard buffer solutions); d) the test duration; e) the results of the test, as indicated in Clause 8; f) any deviation from the test procedure described; g) the date of the test. DIN EN 13523-27:2017-06 EN 13523-27:2017 (E) 9 Bibliography 1 EN 1396,

    43、Aluminium and aluminium alloys - Coil coated sheet and strip for general applications - Specifications 2 EN 10169, Continuously organic coated (coil coated) steel flat products Technical delivery conditions 3 EN ISO 3696, Water for analytical laboratory use - Specification and test methods (ISO 3696) DIN EN 13523-27:2017-06


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