1、April 2011 Translation by DIN-Sprachendienst.English price group 11No 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
2、87.040!$nx“1758594www.din.deDDIN EN ISO 1519Paints and varnishes Bend test (cylindrical mandrel) (ISO 1519:2011)English translation of DIN EN ISO 1519:2011-04Beschichtungsstoffe Dornbiegeversuch (zylindrischer Dorn) (ISO 1519:2011)Englische bersetzung von DIN EN ISO 1519:2011-04Peintures et vernis E
3、ssai de pliage sur mandrin cylindrique (ISO 1519:2011)Traduction anglaise de DIN EN ISO 1519:2011-04SupersedesDIN EN ISO 1519:2003-10www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1703.11 DIN EN ISO 1519:2011-04 A comma is used as
4、 the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes”, Subcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee CEN/TC 139 “Paints and varnis
5、hes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Beschichtungsstoffe und Beschichtungen (Coatings and Coating Materials Standards Committee), Working Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschich
6、tungen. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1513 DIN EN ISO 1513 ISO 1514 DIN EN ISO 1514 ISO 1520 DIN EN ISO 1520 ISO 2808 DIN EN ISO 2808 ISO 3270 DIN EN 23270 ISO 6272-1 DIN EN ISO 6272-1 ISO 6272-2 DIN EN ISO 6272-2 ISO
7、6860 DIN EN ISO 6860 ISO 17132 DIN EN ISO 17132 ISO 15528 DIN EN ISO 15528 Amendments This standard differs from DIN EN ISO 1519:2003-10 as follows: a) Clause 3 “Principle” has been added; b) the requirement to carry out the test at a controlled relative humidity has been deleted (although the relat
8、ive humidity is measured and recorded during the test). A maximum limit for the time between conditioning and testing has therefore been added; c) the supplementary test conditions (formerly Annex A) have been integrated in the test report; d) information has been given on the precision of the metho
9、d. Previous editions DIN 53152: 1954-01, 1959x-10, 1971-05, 1993-05 DIN EN ISO 1519: 1995-04, 2003-10 2 DIN EN ISO 1519:2011-04 National Annex NA (informative) Bibliography DIN EN 23270, Paints, varnishes and their raw materials Temperatures and humidities for conditioning and testing DIN EN ISO 151
10、3, Paints and varnishes Examination and preparation of test samples DIN EN ISO 1514, Paints and varnishes Standard panels for testing DIN EN ISO 1520, Paints and varnishes Cupping test DIN EN ISO 2808, Paints and varnishes Determination of film thickness DIN EN ISO 6272-1, Paints and varnishes Rapid
11、-deformation (impact resistance) tests Part 1: Falling-weight test, large-area indenter DIN EN ISO 6272-2, Paints and varnishes Rapid-deformation (impact resistance) tests Part 2: Falling-weight test, small-area indenter DIN EN ISO 6860, Paints and varnishes Bend test (conical mandrel) DIN EN ISO 17
12、132, Paints and varnishes T-bend test DIN EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling 3 DIN EN ISO 1519:2011-04 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1519 January 2011 ICS 87.040 Supersedes EN ISO 1519:2002
13、English Version Paints and varnishes Bend test (cylindrical mandrel) (ISO 1519:2011) Peintures et vernis Essai de pliage sur mandrin cylindrique (ISO 1519:2011) Beschichtungsstoffe Dornbiegeversuch (zylindrischer Dorn) (ISO 1519:2011) This European Standard was approved by CEN on 8 January 2011. CEN
14、 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 obtained on appl
15、ication 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-CENELEC Ma
16、nagement 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nethe
17、rlands, Norway, Poland,Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation i
18、n any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1519:2011: EContents Page Foreword .3 Introduction.4 1 Scope5 2 Normative references5 3 Principle .5 4 Apparatus.6 5 Sampling 9 6 Test panels.9 7 Procedure.10 8 Expression of results11 9 Precision 11 10 Test rep
19、ort11 Bibliography13 EN ISO 1519:2011 (E) DIN EN ISO 1519:2011-04 2Foreword This document (EN ISO 1519:2011) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN.
20、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 July 2011, and conflicting national standards shall be withdrawn at the latest by July 2011. Attention is drawn to the possibility that some of the
21、elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 1519:2002. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the fol
22、lowing countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slo
23、vakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1519:2011 has been approved by CEN as a EN ISO 1519:2011 without any modification. EN ISO 1519:2011 (E) DIN EN ISO 1519:2011-04 3Introduction This International Standard is one of six which specify
24、 empirical test procedures for assessing the resistance of coatings of paints, varnishes and related products to cracking and/or detachment from the substrate under different conditions of deformation. The other five documents are: ISO 1520, Paints and varnishes Cupping test ISO 6272-1, Paints and v
25、arnishes Rapid-deformation (impact resistance) tests Part 1: Falling-weight test, large-area indenter ISO 6272-2, Paints and varnishes Rapid-deformation (impact resistance) tests Part 2: Falling-weight test, small-area indenter ISO 6860, Paints and varnishes Bend test (conical mandrel) ISO 17132, Pa
26、ints and varnishes T-bend test The method chosen will depend on the property to be measured and on agreement between the interested parties. In principle, all these tests differ from each other technically and in their accuracy. EN ISO 1519:2011 (E) DIN EN ISO 1519:2011-04 41 Scope This Internationa
27、l Standard specifies an empirical test procedure for assessing the resistance of a coating of paint, varnish or related product to cracking and/or detachment from a metal or plastics substrate when subjected to bending round a cylindrical mandrel under standard conditions. For a multi-coat system, e
28、ach coat can be tested separately or the complete system can be tested. The method specified can be carried out either as a “pass/fail” test, by carrying out the test with a single specified size of mandrel, to assess compliance with a particular requirement; or by repeating the procedure using succ
29、essively smaller mandrels to determine the diameter of the first mandrel over which the coating cracks and/or becomes detached from the substrate. Two types of apparatus are specified, type 1 being appropriate for use on test panels of thickness up to 0,3 mm, and type 2 for use on test panels of thi
30、ckness up to 1,0 mm. Both types of apparatus have been found to give similar results with the same coating, but normally only one will be used for testing a given product. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refe
31、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1513, Paints and varnishes Examination and preparation of test samples ISO 1514, Paints and varnishes Standard panels for testing ISO 2808, Paints and
32、 varnishes Determination of film thickness ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling 3 Principle A coated test panel is clamped in the test apparatus and then bent round a cylindrical mandrel. The bent panel is examined to see if the coating has been cracked wh
33、en using the agreed or specified size of mandrel (“pass/fail test”) or, alternatively, the diameter of the first (smallest) mandrel over which the coating cracks and/or becomes detached from the substrate is determined. EN ISO 1519:2011 (E) DIN EN ISO 1519:2011-04 54 Apparatus 4.1 Bend test apparatu
34、s 4.1.1 Material In both types of apparatus specified below, the mandrels shall be made of a rigid and suitably corrosion-resistant material, for example stainless steel. 4.1.2 Type 1 mandrel tester An example of a type 1 tester is shown in Figures 1 and 2. This type of tester is used with test pane
35、ls of thickness not greater than 0,3 mm. A set of hinges is provided, each incorporating a cylindrical mandrel. The diameters of the mandrels are 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm and 32 mm, respectively, with a tolerance of 0,1 mm. The dimensions of the apparatus
36、 are not critical, except that the gap between the surface of the mandrel and the plates of the hinges shall be (0,55 0,05) mm. The mandrel shall be free to rotate on its axis and the apparatus shall be provided with a stop to ensure that, when the test panel is bent, the two parts are parallel. Esp
37、ecially with the 2 mm diameter mandrel, it is important to ensure that no distortion of the mandrel takes place during the bending process, and not to use any mandrel showing such distortion. Key 1 mandrel 2 stop of similar height to mandrel Figure 1 Type 1 bend test apparatus Figure 2 Type 1 bend t
38、est apparatus in use EN ISO 1519:2011 (E) DIN EN ISO 1519:2011-04 64.1.3 Type 2 mandrel tester An example of a type 2 tester is shown in Figures 3 and 4. Type 2 testers are normally used for panels with a thickness of up to 1,0 mm. With coatings on soft metals, for example aluminium, and on plastics
39、, thicker panels may be used with the provision that there is no deformation of the mandrel (see 6.3). The diameters of the mandrels are 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm and 32 mm, with a tolerance of 0,1 mm. By agreement between the interested parties, mandrels
40、of other diameters may be used with the type 2 tester. NOTE The bending piece of the type 2 tester, illustrated as an example in Figures 3 and 4, consists of three PVC rolls which are arranged side by side and run on pivoting bearings. Thus, the coating is not exposed to damage or shear stress durin
41、g the test. Key 1 screw handle 2 bending piece 3 mandrel 4 mandrel bearing 5 adjusting screw 6 clamping jaw 7 thrust bearing Figure 3 Example of a type 2 mandrel bending tester EN ISO 1519:2011 (E) DIN EN ISO 1519:2011-04 7Key 1 screw handle 2 bending piece 3 mandrel 4 mandrel bearing 5 adjusting sc
42、rew 6 clamping jaw 7 thrust bearing Figure 4 Exploded diagram of the tester shown in Figure 3 4.2 Controlled-temperature chamber This is required for tests which are specified to be carried out at temperatures other than (23 2) C. It consists of an oven or refrigerator in which the temperature of th
43、e chamber can be controlled to within 1 C of the required test temperature. A temperature-indicating or recording device shall be located with its bulb or sensitive element in close proximity to the coating under test. NOTE A remote-control device by means of which the test panel can be bent without
44、 opening the chamber can be helpful in performing the test without causing any change in the test temperature. 4.3 Magnifying lens A lens with 10 magnification is required. EN ISO 1519:2011 (E) DIN EN ISO 1519:2011-04 85 Sampling Take a representative sample of the product to be tested (or of each p
45、roduct in the case of a multi-coat system), in accordance with ISO 15528. Examine and prepare each sample for testing, in accordance with ISO 1513. 6 Test panels 6.1 Substrate The test panels shall be of steel, tinplate or soft aluminium complying with the requirements of ISO 1514. Plastics substrat
46、es are also suitable and may be used subject to agreement between the interested parties. 6.2 General The test panels shall be flat and free from distortion, and both the front and the back shall be free from any visible ridges or cracks. 6.3 Shape and dimensions The test panels shall be rectangular
47、. The dimensions of the test panel shall be chosen so that it can be cut into three strips of at least 30 mm in width. The size and the thickness of the strips will depend on the type of tester, either 0,3 mm thick (for type 1) or 1,0 mm (for type 2), unless otherwise specified. If use of plastics p
48、anels is agreed, a thickness of up to 4,0 mm may be used. The test panels may be cut to size after coating and drying, provided no distortion occurs. In the case of aluminium panels, the longer side shall be parallel to the direction of rolling during manufacture. The thickness and the nature of the substrate shall be reported in the test report. 6.4 Preparation and coating of panels Prepare each test panel in accordance with ISO 1514 and coat it by the spec
