BS EN ISO 1518-1-2011 Paints and varnishes Determination of scratch resistance Constant-loading method《涂料和清漆 耐划伤性测定 恒定荷载法》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1518-1:2011Paints and varnishes Determination of scratchresistancePart 1: Constant-loading method (ISO1518-1:2011)BS EN ISO 1518-1:2011 BRITISH STANDARDNational forewor

2、dThis British Standard is the UK implementation of EN ISO1518-1:2011. It supersedes BS EN ISO 1518:2001 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee STI/10, Test methods for paints.A list of organizations represented on this committee can beobtained o

3、n request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011 ISBN 978 0 580 75227 8 ICS 87.040 Compliance with a British Standard cannot confer immunity fromlegal obligations.This British

4、 Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2011. Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1518-1 June 2011 ICS 87.040 Supersedes EN ISO 1518:2000English Version Pa

5、ints and varnishes - Determination of scratch resistance - Part 1: Constant-loading method (ISO 1518-1:2011) Peintures et vernis - Dtermination de la rsistance la rayure - Partie 1: Mthode charge constante (ISO 1518-1:2011) Beschichtungsstoffe - Ritzprfung (ISO 1518-1:2011) This European Standard wa

6、s approved by CEN on 8 January 2011. 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 and bibliographical references concerning such na

7、tional standards may be obtained on application 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 lan

8、guage and notified to the CEN-CENELEC Management 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, La

9、tvia, Lithuania, Luxembourg, Malta, Netherlands, 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 Brus

10、sels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1518-1:2011: EBS EN ISO 1518-1:2011EN ISO 1518-1:2011 (E) 3 Foreword This document (EN ISO 1518-1:2011) has been prepared by Technical Committee ISO/TC 35 “Paints and va

11、rnishes“ in collaboration with 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 December 2011, and co

12、nflicting national standards shall be withdrawn at the latest by December 2011. Attention is drawn to the possibility that some of the 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 d

13、ocument supersedes EN ISO 1518:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germa

14、ny, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 1518-1:2011 has been approved by CEN as a EN ISO 1518-1:2011 w

15、ithout any modification. BS EN ISO 1518-1:2011ISO 1518-1:2011(E) ISO 2011 All rights reserved iiiContents Page Foreword iv 1 Scope1 2 Normative references1 3 Principle .1 4 Apparatus.2 5 Sampling 2 6 Test panels.4 7 Procedure.4 8 Precision 5 9 Test report6 Bibliography7 BS EN ISO 1518-1:2011ISO 1518

16、-1:2011(E) iv ISO 2011 All rights reservedForeword ISO (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 ISO technical committees. Each member

17、body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electr

18、otechnical 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 International Standards adopted

19、 by the technical committees are circulated to the member bodies for voting. Publication as an International 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 the subject of patent

20、rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 1518-1 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. It cancels and replaces ISO 1518:1992, which has been technically

21、 revised. The main changes are: a) the number of the standard has been changed from ISO 1518 to ISO 1518-1; b) a principle clause has been added; c) two versions of the test apparatus are now described; d) the minimum length of the scratch has been reduced from 60 mm to 40 mm; e) the magnification o

22、f the lens used to examine the scratch has been specified as at least 4; f) the supplementary test conditions (formerly Annex A) have been integrated in the test report; g) a clause on precision has been added; h) Annex B specifying a procedure for re-tipping scratch-test needles has been deleted. I

23、SO 1518 consists of the following parts, under the general title Paints and varnishes Determination of scratch resistance: Part 1: Constant-loading method Part 2: Variable-loading method BS EN ISO 1518-1:2011INTERNATIONAL STANDARD ISO 1518-1:2011(E) ISO 2011 All rights reserved 1Paints and varnishes

24、 Determination of scratch resistance Part 1: Constant-loading method 1 Scope This part of ISO 1518 specifies a test method for determining under defined conditions the resistance of a single coating or a multi-coat system of paint, varnish or related product to penetration by scratching with a scrat

25、ch stylus loaded with a specified load. Penetration of the stylus is to the substrate, except in the case of a multi-coat system, in which case the stylus can penetrate either to the substrate or to an intermediate coat. The method specified can be carried out a) either as a “pass/fail” test, by tes

26、ting with a single specified load applied to the stylus to assess compliance with a particular specification; b) or by applying increasing loads to the stylus to determine the minimum load at which the coating is penetrated. 2 Normative references The following referenced documents are indispensable

27、 for the application of this document. For dated references, 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 varni

28、shes Standard panels for testing ISO 2808, Paints and varnishes Determination of film thickness ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling 3 Principle A scratch stylus loaded with a specified load is drawn over a coating at a constant speed. The following test p

29、arameters are specified: the geometry of the stylus tip; the range within which the test load may lie and the increments by which it may be increased; the procedure by which the stylus is lowered on to the coating; the speed at which the stylus travels and the minimum length of the scratch. BS EN IS

30、O 1518-1:2011ISO 1518-1:2011(E) 2 ISO 2011 All rights reservedThe scratch is examined to see if the coating has been penetrated to the extent specified for a single specified test load (“pass/fail” test) or to determine the minimum test load required for penetration. 4 Apparatus 4.1 Scratch apparatu

31、s, two versions of which are illustrated in Figure 1 and Figure 2, with the following characteristics: The test load acting on the scratch stylus fixed to the load beam can be produced either by a weight attached to the stylus (see Figure 1) or by a weight which slides along a graduated load beam (s

32、ee Figure 2). The test load shall be 1 N to 20 N, shall be adjustable in increments of 0,5 N and shall be accurate to within 0,2 N. The test panel held in a panel holder is moved relative to the stylus by means of a linear actuator driven by a motor. The speed at which the stylus travels shall be (3

33、5 5) mm/s and the length of the scratch shall be at least 40 mm. The length of the scratch can affect the result. A lowering device with a flat ramp brings the stylus smoothly into contact with the coating at the beginning of the movement of the panel holder. The angle of the ramp shall be (12,5 2,5

34、). Some types of apparatus are designed so that the load beam moves and the test panel is fixed. Such types of apparatus may also be used. 4.2 Scratch stylus A, having a hemispherical hard-metal tip of radius (0,50 0,01) mm. 4.3 Scratch stylus B, having a hemispherical hard-metal tip of radius (0,25

35、 0,01) mm. 4.4 Scratch stylus C, having a hemispherical synthetic-ruby tip of radius (0,50 0,01) mm. 4.5 Scratch stylus D, having a hemispherical synthetic-ruby tip of radius (0,25 0,01) mm. 4.6 Indicating device, based on electrical contact between the stylus and the metallic substrate, to show whe

36、n the coating has been penetrated. NOTE 1 This device is not suitable for paints containing electrically conducting pigments, for non-metallic substrates or if penetration to an intermediate non-conducting coat is required. NOTE 2 The indicating device can only be used when certain parts of the scra

37、tch apparatus are electrically insulated. 4.7 Magnifying lens, with at least 4 magnification. 5 Sampling Take 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 15528. Examine and prepare each sample for testing, as descri

38、bed in ISO 1513. BS EN ISO 1518-1:2011ISO 1518-1:2011(E) ISO 2011 All rights reserved 3Key 1 weight 2 scratch stylus 3 load beam 4 pivot bearing for load beam 5 tare weight 6 lowering device (ramp and guide pin) 7 test panel 8 test panel holder (designed to be driven by a motor to move in the direct

39、ion of the arrow) 9 baseplate Figure 1 Scratch apparatus Version with the weight attached to the stylus Key 1 stylus 2 load beam with scale 3 sliding weight 4 pivot bearing for load beam 5 tare weight 6 lowering device (ramp and guide pin) 7 test panel 8 test panel holder (designed to be driven by a

40、 motor to move in the direction of the arrow) 9 baseplate Figure 2 Scratch apparatus Version with a sliding weight BS EN ISO 1518-1:2011ISO 1518-1:2011(E) 4 ISO 2011 All rights reserved6 Test panels 6.1 Substrate The test panels shall be made of steel with a thickness of 0,7 mm to 1,0 mm and shall c

41、onform to the requirements of ISO 1514. The panels should preferably have a size of 200 mm 100 mm. 6.2 Preparation and coating Prepare each test panel in accordance with ISO 1514 and coat it according to the specified method with the product or system under test. The method of application of the coa

42、ting shall be as specified by the manufacturer or agreed between the interested parties and shall be included in the test report see Clause 9, item c) 2). 6.3 Drying and conditioning Dry (or stove) and age, if applicable, each coated test panel for the specified time and under the specified conditio

43、ns. Before testing, condition the coated panels at a temperature of (23 2) C and a relative humidity of (50 5) % (i.e. in accordance with ISO 3270) for a minimum period of 16 h. Carry out the test procedure immediately after the removal of the test panels from the conditioning chamber. The drying (o

44、r stoving) and ageing time and conditions shall be as specified by the manufacturer or agreed between interested parties and shall be included in the test report see Clause 9, item c) 3). 6.4 Thickness of coating Determine the thickness, in micrometres, of the dried coating by one of the procedures

45、specified in ISO 2808. The dry-film thickness shall be as specified by the manufacturer or agreed between the interested parties and shall be included in the test report see Clause 9, item c) 4). 7 Procedure 7.1 Test conditions Carry out the test at (23 2) C and a relative humidity of (50 5) %. 7.2

46、General test procedure 7.2.1 Clamp a coated test panel on the panel holder with the coating facing upwards. Position the test panel so that the distance between the scratches to be made will be at least 5 mm and the distance from the scratches to the edge of the test panel will be at least 10 mm. 7.

47、2.2 Fix the scratch stylus in the load beam so that, when in position on the test panel, the stylus will be perpendicular to the panel. 7.2.3 With the stylus unloaded, balance the load beam by means of the tare weight. 7.2.4 Adjust the test load to the required value by placing a weight on the stylu

48、s or by moving the sliding weight, depending on the type of apparatus used. 7.2.5 Activate the indicating device, if used, and check that it is functioning correctly. BS EN ISO 1518-1:2011ISO 1518-1:2011(E) ISO 2011 All rights reserved 57.2.6 Start the motor of the apparatus and allow the scratch to

49、 be made in the coating. Observe the indicating device during the test, if appropriate, to determine whether electrical contact occurs between the stylus and the substrate. 7.2.7 Remove the panel and immediately examine the scratch, with the aid of the magnifying lens, for penetration to the extent specified. 7.3 Procedure for a single specified load (“pass/fail” test) Carry out the procedure specified in 7.2 three times on each of two test panels. If the coating has not

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