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1、BRITISH STANDARD BS EN ISO 1520:2001 BS 3900-E4:2001 Paints and varnishes Cupping test The European Standard EN ISO 1520:2001 has the status of a British Standard ICS 87.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN ISO 1520:2001 This British Standard, having been
2、prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 1 October 2001 BSI 1 October 2001 ISBN 0 580 37935 3 National foreword This British Standard is the official Engli
3、sh language version of EN 1520:2001. It is identical with ISO 1520:1999. It supersedes BS EN ISO 1520:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints, which has the responsibility to: A list of organizations repres
4、ented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Corresponden
5、ce Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of it
6、self confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate th
7、em in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11, an annex ZA page, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued sin
8、ce publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1520 May 2001 ICS 87.040Supersedes EN ISO 1520:1995 English version Paints and varnishes - Cupping test (ISO 1520:1999) Peintures et vernis - Essai demboutissage (ISO 1520:1999) Beschichtungsstoffe - Tiefun
9、gsprfung (ISO 1520:1999) This European Standard was approved by CEN on 7 March 2001. 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 a
10、nd bibliographical references concerning such national standards 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 translation under the responsibil
11、ity of a CEN member into its own language and notified to the Management Centre has the same status 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
12、, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION 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 worl
13、dwide for CEN national Members. Ref. No. EN ISO 1520:2001 E gaPe 2 EN ISO 1520:2001 Foreword The text of the International Standard from Technical Committee ISO/TC 35 “Paints and varnishes“ of the International Organization for Standardization (ISO) has been taken over as an European Standard by Tec
14、hnical 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 November 2001, and conflicting national standards shall
15、 be withdrawn at the latest by November 2001. This European Standard supersedes EN ISO 1520:1995. 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, Denmar
16、k, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 1520:1999 has been approved by CEN as a European Standard without any modification
17、. NOTE: Normative references to International Standards are listed in annex ZA (normative). Page 2 EN ISO 1520:2001 1 October 2001 EN XXXXX:YYYY -3 BSI 07-2001 CONTENTS Page 1Scope5 2Normative references5 3Principle5 4Required supplementary information6 5Apparatus6 6Sampling.6 7Test panels7 7.1 Subs
18、trate.7 7.2 Dimensions.7 7.3 Preparation and coating7 7.4 Drying and conditioning.8 7.5 Thickness of coating.8 8Procedure.8 8.1 Test conditions8 8.2 Procedure for a single specified depth of indentation8 8.3 Procedure for determination of minimum depth of indentation to cause failure.8 9Expression o
19、f results.8 10Precision.8 11Test report.9 Annex A (normative) Required supplementary information10 Annex B (informative) Precision.11 Annex ZA (normative) Normative references to international publications with their relevant European publications12 3 egaP 1002:0251 OSI NE 1002 rebmetpeS 71 Page 3 E
20、N ISO 1520:2001 1 October 2001 blank INTERNATIONAL STANDARD ISOISO 1520:1999(E) 1 Paints and varnishes Cupping test 1 Scope This International Standard specifies an empirical test procedure for assessing the resistance of a coating of paint, varnish or related product to cracking and/or detachment f
21、rom a metal substrate when subjected to gradual deformation by indentation under standard conditions. For a multi-coat system, each coat may be tested separately or the complete system may be tested. The method specified may be carried out either as a “pass/fail” test, by testing to a specified dept
22、h of indentation to assess compliance with a particular requirement; or by gradually increasing the depth of indentation to determine the minimum depth at which the coating cracks and/or becomes detached from the substrate. 2 Normative references The following standards contain provisions which, thr
23、ough reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of app
24、lying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 1512:1991, Paints and varnishes Sampling of products in liquid or paste form. ISO 1513:1991, Paints and varnishes Examination and preparation of
25、samples for testing. ISO 1514:1993, Paints and varnishes Standard panels for testing. ISO 2808:1997, Paints and varnishes Determination of film thickness. ISO 3270:1984, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testing. 3 Principle The product or
26、system under test is applied at uniform thickness to flat panels of uniform surface texture. After drying/curing, the elastic properties of the paint film are determined by first placing the coated panel between two rings, namely the retaining ring and the drawing die. The panel is then pushed by a
27、hemispherical indenter at a steady rate into the test piece so as to form a dome shape with the coating on the outside. The deformation is increased either to a specified depth or until the coating cracks and/or detaches from the substrate, and the result is then assessed. 5 egaP 1002:0251 OSI NE 10
28、02 rebmetpeS 71 Page 5 EN ISO 1520:2001 1 October 2001 ISO 1520:1999(E) ISO 2 4 Required supplementary information For any particular application the test method specified in this International Standard needs to be completed by supplementary information. The items of supplementary information are gi
29、ven in annex A. 5 Apparatus 5.1 Cupping test apparatus, which complies with the design and dimensions shown in figure 1 and consists essentially of the following components: 5.1.1 Drawing die, made of surface-hardened steel and of which the surface in contact with the test panel is plane-polished. 5
30、.1.2 Retaining ring, of which the surface in contact with the test panel is plane-polished and parallel to the contacting surface of the die. 5.1.3 Indenter, of which the part contacting the test panel is of hardened polished steel and forms a hemisphere of 20 mm diameter. It is preferable to use a
31、mechanically driven indenter, but a hand-operated apparatus is also acceptable, provided that the standard conditions of test (see clause 8) can be achieved. During the test the indenter shall be prevented from turning and the centre of the spherical portion shall not deviate from the axis of the di
32、e by more than 0,1 mm. The indenter shall move at a steady speed of between 0,1 mm/s and 0,3 mm/s during the test. The tip of the hemisphere, when at the zero position, shall be in the same plane as the face of the retaining ring, in contact with the test panel and in the centre of the bore of the d
33、rawing die. 5.1.4 Measuring device, which can measure the depth of the indentation made by the indenter to the nearest 0,1 mm. 5.2 Microscope or magnifier, preferably with a magnification range extending up to 10, if considered necessary to view the panels during or after deformation. 6 Sampling Tak
34、e a representative sample of the product to be tested (or of each product in the case of a multi-coat system), as described in ISO 1512. Examine and prepare each sample for testing, as described in ISO 1513. 6 egaP 1002:0251 OSI NE 1002 rebmetpeS 71 Page 6 EN ISO 1520:2001 1 October 2001 OSIISO 1520
35、:1999(E) 3 Dimensions in millimetres Key 1Test panel4Indenter and ball 2Depth of indentation5Die 3Retaining ring Figure 1 Cupping test apparatus 7 Test panels 7.1 Substrate Unless otherwise agreed, select the substrate from one of those described in ISO 1514 and, where possible, in accordance with t
36、he intended use. The test panels shall be flat and free from distortion and capable of withstanding the cupping test without cracking. NOTE If cracking of the substrate occurs before the cracking and/or detachment of the paint film, the test result of the paint film can be reported to be better than
37、 the indentation depth at which cracking of the substrate occurred. 7.2 Dimensions The test panels shall be rectangular with the following dimensions: thickness: not less than 0,3 mm and not more than 1,25 mm (as specified and measured with a micrometer (5.1.4) to the nearest 0,01 mm); width and len
38、gth: three tests shall be carried out either on a single long strip or on three separate panels. The indentation centres of the tests shall be at least 35 mm from any edge and the distance between any two centres shall be a minimum of 70 mm. The test panels may be cut to size after coating and dryin
39、g, provided no distortion occurs. 7.3 Preparation and coating Unless otherwise agreed, prepare each test panel in accordance with ISO 1514 and then coat it by the specified method with the product or system under test. Page 7 EN ISO 1520:2001 1 October 2001 ISO 1520:1999(E) ISO 4 7.4 Drying and cond
40、itioning Dry (or stove) and age (if applicable) each coated test panel for the specified time and under the specified conditions. Unless otherwise agreed, condition the coated panels at (23 2) C and a relative humidity of (50 5) % for a minimum period of 16 h before testing. 7.5 Thickness of coating
41、 Determine the thickness, in micrometres, of the dried coating by one of the procedures specified in ISO 2808. 8 Procedure 8.1 Test conditions Carry out the test in triplicate at (23 2) C and a relative humidity of (50 5) %, unless otherwise agreed (see also ISO 3270). 8.2 Procedure for a single spe
42、cified depth of indentation 8.2.1 Carry out the following procedure in triplicate (if the results differ, additional tests shall be made). 8.2.2 Hold the test panel firmly without excessive pressure between the retaining ring (5.1.2) and the drawing die (5.1.1) with the coating towards the die and w
43、ith the hemispherical end of the indenter (5.1.3) just in contact with the uncoated side of the test panel (zero position of the indenter). Adjust the panel until the central axis of the indenter intersects the panel at least 35 mm from the edge. 8.2.3 Advance the hemispherical end of the indenter i
44、nto the test piece at a steady rate between 0,1 mm/s and 0,3 mm/s until the specified depth is reached, i.e. until the indenter has travelled this distance from the zero position. 8.2.4 Using normal corrected vision or, by agreement, a microscope or magnifier of 10 magnification (5.2), examine the c
45、oating of the test panel for cracking and/or detachment from the substrate. NOTE If a microscope or magnifier is used, it is essential to mention this fact in the test report to avoid misleading comparisons with results obtained using normal vision only. 8.3 Procedure for determination of minimum de
46、pth of indentation to cause failure Carry out the procedure given in 8.2 until, using normal corrected vision (or, by agreement, a microscope or magnifier of 10 magnification), a crack is first observed on the surface of the coating and/or the coating begins to become detached from the substrate. St
47、op the indenter at this point and measure the depth of indentation (see figure 1) to the nearest 0,1 mm, i.e. the distance travelled by the indenter from the zero position. Confirm the result by repeating the determination on two fresh panels (if the results differ, further determinations shall be m
48、ade). 9 Expression of results The test results shall be reported as either: whether or not the coating on the test panels passed the specified indentation depth; or the maximum depth of indentation at which the coating passed, obtained from the calculation of the mean of three valid results (triplic
49、ates) and to the nearest 0,1 mm. 10 Precision See annex B. 8 egaP 1002:0251 OSI NE 1002 rebmetpeS 71 Page 8 EN ISO 1520:2001 1 October 2001 ISOISO 1520:1999(E) 5 11 Test report The test report shall include the following information: a) all details necessary to identify the product tested; b) a reference to this International Standard (ISO 1520:1998); c) the items of supplementary information referred to in annex A; d) a reference to the international or national standard, product spe