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1、BRITISH STANDARD BS EN ISO 12137-2:2006 BS 3900-E18:1997 Incorporating amendment no. 1 to BS 3900-E18:1997 (renumbers the BS as BS EN ISO 12137-2:2006) Paints and varnishes Determination of mar resistance Part 2: Method using a pointed stylus This European Standard EN ISO 12137-2:2006 has the status
2、 of a British Standard ICS 87.040 ? Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN ISO 12137-2:2006 This British Standard, having been prepared under the direction of the Sector Board for Materials and C
3、hemicals, was published under the authority of the Standards Board and comes into effect on 15 May 1997 BSI 2007 ISBN 0 580 27506 X National foreword This British Standard was published by BSI. It is the UK implementation of EN ISO 12137-2:2006. It is identical with ISO 12137-2:1997 Paints and varni
4、shes Determination of mar resistance Part 2: Method using a pointed stylus published by the International Organization for Standardization (ISO). The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints. A list of organizations represented on this
5、committee can be obtained on request. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot of itself confer immunity from legal obligations. Amendments issued since public
6、ation Amd. No. DateComments 1686228 February 2007 Renumbers the BS as BS EN ISO 12137-2:2006 Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12137-2 June
7、 2006 ICS 87.040 English Version Paints and varnishes - Determination of mar resistance - Part 2: Method using a pointed stylus (ISO 12137-2:1997) Peintures et vernis - Dtermination de la rsistance la dtrioration - Partie 2: Mthode utilisant un stylet pointu (ISO 12137-2:1997) Beschichtungsstoffe -
8、Bestimmung der Kratzfestigkeit - Teil 2: Verfahren mit spitzem Stichel (ISO 12137-2:1997) This European Standard was approved by CEN on 19 May 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status o
9、f a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A versi
10、on in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estoni
11、a, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPI
12、SCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2006 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12137-2:2006: E Licensed Copy: London South Bank University, London South Bank University, Fri
13、Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of ISO 12137-2:1997 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 12137-2:2006 by Technical Committee
14、 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 2006, and conflicting national standards shall be withdrawn at
15、 the latest by December 2006. According to the CEN/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, Icela
16、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 12137-2:1997 has been approved by CEN as EN ISO 12137-2:2006 without any modifications. EN I
17、SO 12137-2:2006 Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN ISO 12137-2:2006 Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled
18、 Copy, (c) BSI ii Contents Page Forewordiii 1Scope1 2Normative references1 3Definition1 4Principle1 5Required supplementary information1 6Apparatus2 7Sampling2 8Test panels3 9Procedure3 10Expression of results4 11Precision4 11Test report4 Annex A (normative) Required supplementary information5 Annex
19、 B (informative) Precision5 Figure 1 Scratch tester with pointed stylus2 Figure 2 Stylus tipped with conical sapphire or diamond3 BSI 2007 EN ISO 12137-2:2006 Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii
20、 Foreword 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 body interested in a subject for which a
21、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 Electrotechnical Commission (IEC) on all matter
22、s of electrotechnical standardization. Draft International Standards adopted 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. International Standard ISO 12137-2
23、 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. ISO 12137 consists of the following parts, under the general title Paints and varnishes Determination of mar resistance: Part 1: Method using a curved stylus; Part
24、2: Method using a pointed stylus. Annex A forms an integral part of this part of ISO 12137. Annex B is for information only. Descriptors: Paints, varnishes, paint coats, tests, wear tests, determination, wear resistance, deterioration, test equipment. BSI 2007 BS EN ISO 12137-2:2006 Licensed Copy: L
25、ondon South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 1 1 Scope 1.1 This part of ISO
26、12137 is one of a series of standards dealing with the sampling and testing of paints, varnishes and related products. It specifies a method for determining, using a pointed stylus, the mar resistance of a single coating of a paint, varnish or related product, or the upper layer of a multicoat syste
27、m. Part 1 of ISO 12137 specifies a method using a curved stylus. The choice between the two methods will depend on the particular practical problem. 1.2 This test has been found to be useful in comparing the mar resistance of different coatings. It is most useful in providing relative ratings for a
28、series of coated panels exhibiting significant differences in mar resistance. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 12137. At the time of publication, the editions indicated were valid. All s
29、tandards are subject to revision, and parties to agreements based on this part of ISO 12137 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 1
30、512:1991, Paints and varnishes Sampling of products in liquid or paste form. ISO 1513:1992, Paints and varnishes Examination and preparation of samples for testing. ISO 1514:1993, Paints and varnishes Standard panels for testing. ISO 2808:, Paints and varnishes Determination of film thickness1). 3 D
31、efinition For the purposes of this part of ISO 12137, the following definition applies: 3.1 mar resistance the resistance of the surface of a paint film to marking or the formation of other defects as a result of the action of a specified stylus pushed across the surface marring covers a very broad
32、range of defects in the surface of the paint film. These defects include small scratches and other marks in the surface of the paint film caused by finger nails or car wash brushes, for instance the defects are defined as follows: a) Plastic deformation the permanent indentation of the surface with
33、or without any surface blemish or cohesive fracture. b) Surface blemish a superficial surface effect caused by a difference in the scattering of light between the line of test and the adjacent surface. c) Surface scratch a continuous cut or gouge through the surface. d) Cohesive fracture the presenc
34、e of a visible surface break or rupture. e) Combinations of the above. NOTEIn some cases, one of these types of defect will be of particular importance, while in other cases one of the other types of defect may be of interest. 4 Principle The product or system under test is applied at uniform thickn
35、ess to flat panels of uniform surface texture. After drying/curing, the mar resistance is determined using an automatic tester which pushes the panels beneath a pointed stylus mounted so that it presses down perpendicularly on the surface of the test panel. The load on the test panel is increased co
36、ntinuously until the coating is marred. 5 Required supplementary information For any particular application, the test method specified in this part of ISO 12137 needs to be completed by supplementary information. The items of supplementary information are given in Annex A. 1) To be published. (Revis
37、ion of ISO 2808:1991) BSI 2007 BS EN ISO 12137-2:2006 Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 2 6 Apparatus 6.1 A suitable tester2) is shown in Figure 1. It consists principally of a counterbalanced bea
38、m with, mounted at one end, a pointed stylus. The test panel is placed on a sliding table which is motor-driven to move under the stylus at a speed of 600 mm/min. A continuous-loading weight mounted over the beam acts on the beam in such a way that, as the test panel passes under the stylus, the loa
39、d on the stylus is continuously increased. The stylus-loading range can be varied by changing the continuous-loading weight (weights giving loading ranges of 0 to 50 g, 0 to 100 g and 0 to 200 g are available, for instance). Mounted over the stylus itself is a small scale pan on which weights can be
40、 placed to expand the stylus-loading range (adding a weight of 100 g, for instance, changes a 0 to 200 g loading range to one of 100 g to 300 g). 6.2 The stylus should preferably be tipped with a conical sapphire or diamond, the point of which is rounded to a radius of (0,03 0,005) mm (see Figure 2)
41、. NOTEBy agreement, sapphire or diamond stylus tips of other dimensions may be used. 6.3 A microscope, preferably with a magnification range extending up to 100, is required to examine the stylus. It may also be used to inspect the marred coating. 7 Sampling 7.1 Take a representative sample of the p
42、roduct 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. 2) This apparatus is available from Shinton Scientific Ltd, 27 Higashi Konya-cho, Kanda, Chigoda-ku, Tokyo 101, Japan. This in
43、formation is given for the convenience of users of this part of ISO 12137 and does not constitute endorsement by ISO of the apparatus shown. Other types of scratch tester may be used if they can be shown to give similar relative ratings. Figure 1 Scratch tester with pointed stylus BSI 2007 EN ISO 12
44、137-2:2006 Licensed Copy: London South Bank University, London South Bank University, Fri Mar 02 00:51:21 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 3 8 Test panels 8.1 Substrate Unless otherwise agreed, select the substrate from one of those described in ISO 1514 and, where possible, in accordance
45、with the desired practical application. The panels shall be plane and free from distortion, with a maximum thickness of about 12 mm, and 100 mm to 400 mm wide and long. 8.2 Preparation and coating Unless otherwise agreed, prepare each test panel in accordance with ISO 1514 and then coat it by the sp
46、ecified method with the product or system under test. 8.3 Drying and conditioning Dry (or stove) and age, if applicable, each coated test panel for the specified time and under the specified conditions. Before testing, condition the coated panels at (23 2) C and a relative humidity of (50 5) % unles
47、s otherwise agreed, for a minimum period of 16 h. Fingerprints, dust or other contamination on the surface will result in a lower accuracy. The coated panels shall therefore be stored and handled in the appropriate way. 8.4 Thickness of coating Determine the thickness, in micrometers, of the dried c
48、oating by one of the procedures specified in ISO 2808. 9 Procedure 9.1 Test conditions Carry out the test at (23 2) C and a relative humidity of (50 5) %, unless otherwise agreed. 9.2 Preparation for the test Place the tester on a stable and level surface. Level the tester, using the spirit level an
49、d adjustment nut fitted to the tester and the special adjustment tool supplied by the manufacturer of the tester. Examine the stylus under the microscope, preferably at a magnification of 100, in accordance with the tester operation manual, to ensure that it is undamaged. Clean the stylus, if necessary, with a clean cloth or lint-free paper. 9.3 Determination Place a test panel up against the stop on the sliding table. Secure the panel in place