1、BRITISH STANDARDBS EN ISO 1520:2006Paints and varnishes Cupping testThe European Standard EN ISO 1520:2006 has the status of a British StandardICS 87.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g
2、40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 1520:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2007 BSI 2007ISBN 978 0 580 55049 2National forewordThis British Standard is the UK implementation of EN ISO 152
3、0:2006. It supersedes BS EN ISO 1520:2001 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purpo
4、rt to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO
5、1520November 2006ICS 87.040 Supersedes EN ISO 1520:2001 English VersionPaints and varnishes - Cupping test (ISO 1520:2006)Peintures et vernis - Essai demboutissage (ISO1520:2006)Beschichtungsstoffe - Tiefungsprfung (ISO 1520:2006)This European Standard was approved by CEN on 25 October 2006.CEN memb
6、ers 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
7、 to the CEN 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 CEN Management Centre has the s
8、ame status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Rom
9、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedwo
10、rldwide for CEN national Members.Ref. No. EN ISO 1520:2006: EForeword This document (EN ISO 1520:2006) 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. This
11、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 May 2007, and conflicting national standards shall be withdrawn at the latest by May 2007. This document supersedes EN ISO 1520:2001 According to the CEN
12、/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
13、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 1520:2006 has been approved by CEN as EN ISO 1520:2006 without any modifications. EN ISO 1520:2006INTERNATIONALSTANDARDISO1520Third edition200
14、6-11-15Reference numberISO 1520:2006(E)Paints and varnishes Cupping testPeintures et vernis Essai demboutissageEN ISO 1520:2006iiiiiContents Page1 Scope 12 Normative references 13 Principle 14 Apparatus . 15 Sampling . 36 Test panels . 37 Procedure . 38 Supplementary test conditions 49 Expression of
15、 results 410 Precision . 511 Test report 5Bibliography . 6EN ISO 1520:2006ivForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies(ISO member bodies). The work of preparing International Standards is normally carried out through ISOtec
16、hnical committees. Each member body interested in a subject for which a technical committee has beenestablished has the right to be represented on that committee. International organizations, governmental andnon-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
17、with the InternationalElectrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft Inter
18、national Standardsadopted by the technical committees are circulated to the member bodies for voting. Publication as anInternational Standard requires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be
19、 the subject of patentrights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 1520 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9,General test methods for paints and varnishes.This third edition cancels and replaces the seco
20、nd edition (ISO 1520:1999), which has been technically revised.The main changes are: the determination is carried out in duplicate instead of triplicate; precision data have been added; the text has been editorially revised and the normative references have been reviewed.EN ISO 1520:2006vIntroductio
21、nThis International Standard is one of six standards which specify empirical test procedures for assessing theresistance of coatings of paints, varnishes and related products to cracking and/or detachment from thesubstrate under different conditions of deformation.The other standards are:ISO 1519, P
22、aints and varnishes Bend test (cylindrical mandrel)ISO 6272-1, Paints and varnishes Rapid-deformation (impact resistance) tests Part 1: Falling-weighttest, large-area indenterISO 6272-2, Paints and varnishes Rapid-deformation (impact resistance) tests Part 2: Falling-weighttest, small-area indenterI
23、SO 6860, Paints and varnishes Bend test (conical mandrel)ISO 17132, Paints and varnishes T-bend testThe method to be chosen depends on the property which has to be measured. In principle, all these tests differtechnically from each other and differ in accuracy.EN ISO 1520:2006blank1Paints and varnis
24、hes Cupping test1ScopeThis International Standard specifies an empirical method for assessing the resistance of a coating of paint,varnish or related product to cracking and/or detachment from a metal substrate when subjected to gradualdeformation by indentation under standard conditions (see 7.1).F
25、or a multi-coat system, each coat may be tested separately or the complete system may be tested.The method may be carried out as follows: either as a “pass/fail” test, by testing to a specified depth of indentation to assess compliance with aparticular requirement; or by gradually increasing the dep
26、th of indentation to determine the minimum depth at which the coatingcracks and/or becomes detached from the substrate.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For datedreferences, only the edition cited applies. For undated ref
27、erences, the latest edition of the referenced document(including any amendments) applies.ISO 1513, Paints and varnishes Examination and preparation of samples for testingISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Determination of film thicknessISO 15528,
28、 Paints, varnishes and raw materials for paints and varnishes Sampling3 PrincipleThe product or 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 panelbe
29、tween two rings, namely the retaining ring and the drawing die. The panel is then pushed by a hemisphericalindenter at a steady rate into the die so as to form a dome shape with the coating on the outside.The deformation is increased either to a depth agreed between the interested parties or until t
30、he coating cracksand/or detaches from the substrate, and the result is then assessed.4 Apparatus4.1 Cupping test apparatus, which conforms to the design and dimensions shown in Figure 1 and consistsessentially of the following components:4.1.1 Drawing die, made of surface-hardened steel and of which
31、 the surface in contact with the test panel isplane-polished.EN ISO 1520:200624.1.2 Retaining ring, of which the surface in contact with the test panel is plane-polished and parallel to thecontacting surface of the die.4.1.3 Indenter, of which the part contacting the test panel is of hardened polish
32、ed steel and forms ahemisphere of diameter.It is preferable to use a mechanically driven indenter, but a hand-operated apparatus can also be used, providedthe standard conditions of test (see Clause 7) can be achieved.During the test, the indenter shall be prevented from turning and the centre of th
33、e spherical portion shall notdeviate from the axis of the die by more than . The indenter shall move at a steady speed of betweenand 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 i
34、n the centre of the bore of the drawing die.4.1.4 Measuring device(s), which can measure the depth of the indentation made by the indenter to thenearest and the thickness of the test panel to the nearest .4.2 Microscope or magnifier, preferably with a magnification range extending up to , if necessa
35、ry toview the panels during or after deformation.Dimensions in millimetresKey1 test panel2 depth of indentation3 retaining ring4 indenter and ball5dieFigure 1 Cupping test apparatus20 mm0,1 mm0,1 mm/s 0,3 mm/s0,1 mm 0,01 mm10EN ISO 1520:200635 SamplingTake a representative sample of the product to b
36、e tested (or of each product 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 panels6.1 SubstrateUnless otherwise specified, select the substrate from one of those described in ISO 1514 and in accordancewit
37、h the intended use.The test panels shall be flat and free from distortion and capable of withstanding the cupping test withoutcracking.NOTE If cracking of the substrate occurs before the cracking and/or detachment of the paint film, the test result of the paintfilm can be reported to be better than
38、the indentation depth at which cracking of the substrate occurred.6.2 DimensionsThe test panels shall be rectangular with the following dimensions: Thickness: not less than and not more than , as specified, measured with e.g. a micrometer(see 4.1.4) to the nearest . Width and length: two tests shall
39、 be carried out, either on a single long strip or on two separate panels. Theindentation centres in these tests shall be at least from any edge, and the distance between any twoindentation centres shall be a minimum of . The test panels may be cut to size after coating anddrying, provided no distort
40、ion occurs.6.3 Preparation and coatingUnless otherwise agreed, prepare each test panel in accordance with ISO 1514 and then coat it by the specifiedmethod with the product or system under test.6.4 Drying and conditioningDry (or stove) and age (if applicable) each coated test panel for the specified
41、time and under the specifiedconditions. Unless otherwise agreed, condition the coated panels at and a relative humidity offor a minimum period of before testing.6.5 Thickness of coatingDetermine the thickness, in micrometres, of the dried coating by one of the procedures specified in ISO 2808.7 Proc
42、edure7.1 Test conditionsUnless otherwise specified, carry out the test in duplicate at and a relative humidity of (see also ISO 3270).0,3 mm 1,25 mm0,01 mm35 mm70 mm(23 2)C(50 5) % 16 h(23 2)C (50 5) %EN ISO 1520:200647.2 Procedure for a single specified depth of indentation7.2.1 Carry out the follo
43、wing procedure in duplicate (if the results differ, additional tests shall be made).7.2.2 Hold the test panel firmly without excessive pressure between the retaining ring (4.1.2) and the drawingdie (4.1.1) with the coating towards the die and with the hemispherical end of the indenter (4.1.3) just i
44、n contactwith the uncoated side of the test panel (zero position of the indenter). Adjust the panel until the central axis ofthe indenter intersects the panel at least from the edge.7.2.3 Advance the hemispherical end of the indenter into the test piece at a steady rate between anduntil the specifie
45、d depth is reached, i.e. until the indenter has travelled this distance from the zeroposition.7.2.4 Using normal corrected vision or, if necessary, a microscope or magnifier of magnification (4.2),examine the coating of the test panel for cracking and/or detachment from the substrate.If a microscope
46、 or magnifier is used, it is essential to mention this fact in the test report to avoid misleadingcomparisons with results obtained using normal vision only.7.3 Procedure for determination of minimum depth of indentation to cause failureUnless otherwise specified, test the test panels in accordance
47、with the procedure given in 7.2 using normalcorrected vision, or, if necessary, a microscope or magnifier of magnification, until a crack is first observedon the surface of the coating and/or the coating begins to become detached from the substrate.Stop the indenter at this point and measure the dep
48、th of indentation (see Figure 1) to the nearest , i.e.the distance travelled by the indenter from the zero position. Confirm the result by repeating the determinationon a fresh panel (if the result differs, further determinations shall be made).8 Supplementary test conditionsTo enable the method to
49、be carried out, the following supplementary information needs to be specified inaddition to that in the preceding clauses:a) the material, dimensions and surface preparation of the substrate;b) the method of application of the test coating to the substrate;c) the duration and conditions of drying (or stoving) and ageing (if applicable) of the coated panels beforetesting;d) the thickness, in micrometres, of the dry coating, together with the method of measurement used, andwhether it is a single coating or a multi-coat system
