1、February 2013Translation by DIN-Sprachendienst.English price group 9No 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!$*I“1950738www.din.deDDIN EN ISO 15184Paints and varnishes Determination of film hardness by pencil test (ISO 15184:2012);English version EN ISO 15184:2012,English translation of DIN EN ISO 15184:2013-02Beschichtungsstoffe Bestimmung der Hrte von Beschichtungen durch Testen mit Bleistiften(I
3、SO 15184:2012);Englische Fassung EN ISO 15184:2012,Englische bersetzung von DIN EN ISO 15184:2013-02Peintures et vernis Dtermination de la duret du feuil par lessai de duret crayon (ISO 15184:2012);Version anglaise EN ISO 15184:2012,Traduction anglaise de DIN EN ISO 15184:2013-02www.beuth.deIn case
4、of doubt, the German-language original shall be considered authoritative.Document comprises 12 pages02.13 DIN EN ISO 15184:2013-02 2 A comma is used as the decimal marker. National foreword This document (EN ISO 15184:2012) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes”, S
5、ubcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Beschichtungsst
6、offe und Beschichtungen (Coatings and Coating Materials Standards Committee), Working Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1513 DIN
7、EN ISO 1513 ISO 1514 DIN EN ISO 1514 ISO 2808 DIN EN ISO 2808 ISO 15528 DIN EN ISO 15528 National Annex NA (informative) Bibliography DIN EN ISO 1513, Paints and varnishes Examination and preparation of test samples DIN EN ISO 1514, Paints and varnishes Standard panels for testing DIN EN ISO 2808, P
8、aints and varnishes Determination of film DIN EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15184 October 2012 ICS 87.040 English Version Paints and varnishes - Determination of film hardness by pencil tes
9、t(ISO 15184:2012) Peintures et vernis - Dtermination de la duret du feuil par lessai de duret crayon (ISO 15184:2012) Beschichtungsstoffe - Bestimmung der Hrte von Beschichtungen durch Testen mit BleistiftenThis European Standard was approved by CEN on 13 October 2012. CEN members are bound to compl
10、y 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 application to the CEN-CENELEC
11、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 Management Centre has the sam
12、e status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
13、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. N
14、o. EN ISO 15184:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG (ISO 15184:2012) Contents Page Foreword . 3 1 Scope . 4 2 Normative references. 4 3 Terms and definitions 4 4 Principle 4 5 Apparatus 5 6 Sampling . 6 7 Test panels 6 7.1 Subst
15、rate . 6 7.2 Shape and dimensions 6 7.3 Preparation and coating 6 7.4 Drying and conditioning 7 7.5 Thickness of coating 7 8 Procedure 7 9 Types of defect . 8 10 Precision . 8 11 Test report . 8 Annex A (informative) Applicability of the pencil hardness test. 9 Bibliography 10 2DIN EN ISO 15184:2013
16、-02EN ISO 15184:2012 (E) Foreword This document (EN ISO 15184:2012) 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 European Standard shall be given the s
17、tatus of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. Attention is drawn to the possibility that some of the elements of this document may be the subj
18、ect of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bu
19、lgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
20、Turkey and the United Kingdom. Endorsement notice The text of ISO 15184:2012 has been approved by CEN as a EN ISO 15184:2012 without any modification. “”3DIN EN ISO 15184:2013-02 EN ISO 15184:2012 (E) IMPORTANT The electronic file of this document contains colours which are considered to be useful f
21、or the correct understanding of the document. Users should therefore consider printing this document using a colour printer.1 ScopeThis International Standard specifies a method for determining the film hardness by pushing pencils of known hardness over the film.The test can be performed on a single
22、 coating of a paint, varnish or related product, or on the upper layer of a multi-coat system.This rapid test has not been found to be useful in comparing the pencil hardness of different coatings. It is more useful in providing relative ratings for a series of coated panels exhibiting significant d
23、ifferences in pencil hardness.The method is applicable only to smooth surfaces.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the refe
24、renced document (including any amendments) applies.ISO 1513, Paints and varnishes Examination and preparation of test samplesISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Determination of film thicknessISO 15528, Paints, varnishes and raw materials for pain
25、ts and varnishes Sampling3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1pencil hardnessresistance of the surface of a paint film to marking, or the formation of some other defect, as a result of the action of a pencil, with a lead of specified
26、dimensions, shape and hardness, which is pushed across the surface4 PrincipleA pencil lead with a defined geometry is pushed over the paint surface at an angle of 45, exerting a force of 7,5 N on the surface. The hardness of the pencil lead is increased in steps until the surface of the coating is m
27、arked by visible defects. The test result is the highest hardness at which no marking occurs.4DIN EN ISO 15184:2013-02EN ISO 15184:2012 (E) 5 Apparatus5.1 Test instrument, consisting of a metal block fitted with two wheels, one on each side, as shown in Figure 1. The wheels shall be made in such a w
28、ay that they do not scratch the paint surface during testing. In the middle of the metal block, there is a cylindrical hole, inclined at an angle of (45 1), for the pencil.With the help of a clamp, pencils can be fixed in the instrument so that they are always in the same position.Mounted on the top
29、 of the instrument is a level which is used to ensure that the test is carried out with the instrument horizontal.The instrument shall be designed so that, with the instrument in the horizontal position, the tip of the pencil exerts a force of (7,5 0,1) N on the paint surface.Other types of test ins
30、trument may also be used, provided they give similar relative rating results.5.2 Set of wooden drawing pencils, of the following hardnesses (see note):9B - 8B - 7B - 6B - 5B - 4B - 3B - 2B - B - HB - F - H - 2H - 3H - 4H - 5H - 6H - 7H - 8H - 9H Softer HarderB - black HB - hard black F - firm H - ha
31、rd Pencils made by various manufacturers may be used by agreement between the interested parties, provided they give similar relative rating results.NOTE Some examples of pencil makes and manufacturers which have been found suitable are as follows1): Cleos Fine Art 160, manufactured by Cretacolor; G
32、raphic, manufactured by Derwent; Turquoise T-2375, manufactured by Sanford; KOH-I-NOOR 1500, manufactured by Hardtmuth AG; Uni, manufactured by Mitsubishi Pencil Co.; Chunghwa, manufactured by China First Pencil Co., Ltd.For comparative testing, it is recommended that pencils from the same manufactu
33、rer be used. Variations might be found between manufacturers and between batches from the same manufacturer.Pencil leads in mechanical holders (propelling/mechanical pencils) may be used provided they give the same results as wooden pencils.5.3 Special mechanical sharpener, which will remove the woo
34、d only, leaving the cylindrical pencil lead intact (see Figure 2).5.4 Abrasive paper, grit No. 400.5.5 Soft cloth or swab of cotton wool, to clean the panel after the test, using a solvent to which the coating is inert.1) This information is given for the convenience of users of this International S
35、tandard and does not constitute an endorsement by ISO of these products.5DIN EN ISO 15184:2013-02 EN ISO 15184:2012 (E) Key 1 metal block 6 small, movable weight for adjusting the test force2 rubber O-ring 7 clamp3 pencil 8 direction of pushing4 substrate 9 pencil lead5 level 10 paint filmFigure 1 S
36、chematic diagram of test instrumentDimensions in millimetresFigure 2 Schematic view of pencil after sharpening6 SamplingTake 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 test
37、ing, as described in ISO 1513.7 Test panels7.1 SubstrateUnless otherwise agreed, select the substrate from one of those described in ISO 1514, using, where possible, the same type of material as will be used in practice. The substrate panels shall be plane and free from distortion.7.2 Shape and dime
38、nsionsThe shape and dimensions of the test panels shall be such that, during the test, the panel will stay in the horizontal position.7.3 Preparation and coatingUnless otherwise agreed, prepare each test panel in accordance with ISO 1514 and then coat it by the specified method with the product or s
39、ystem under test.6DIN EN ISO 15184:2013-02EN ISO 15184:2012 (E) 7.4 Drying and conditioningDry (or stove) and age, if applicable, each coated test panel for the specified time under the specified conditions. Before testing, condition the coated panels at (23 2) C and a relative humidity of (50 5) %,
40、 unless otherwise agreed, for a minimum period of 16 h.7.5 Thickness of coatingThe thickness of the coating shall be as specified or as agreed between the interested parties. Determine the thickness of the coating by one of the procedures specified in ISO 2808.8 Procedure8.1 Carry out the test at a
41、temperature of (23 2) C and a relative humidity of (50 5) %, unless otherwise agreed.8.2 Remove approximately 5 mm to 6 mm of wood from the point of each pencil using the special mechanical sharpener (5.3), being careful to leave an undisturbed, unmarked, smooth cylinder of pencil lead.8.3 Flatten t
42、he tip of the lead by holding the pencil in a vertical position and moving the pencil back and forth over abrasive paper (5.4), maintaining an angle of 90. Continue until a flat, smooth, circular cross-section is obtained, free from chips or nicks in the edges.Repeat this procedure each time a penci
43、l is used.8.4 Place the coated panel on a level, firm, horizontal surface.Insert a pencil in the test instrument (5.1) and clamp it in position so that the instrument is horizontal, with the tip of the pencil resting on the surface of the paint film (see Figure 1).8.5 Immediately after the tip of th
44、e pencil has come to rest on the coating, push the pencil in the direction away from the operator at a uniform speed.8.6 Unless otherwise agreed, inspect the coating after 30 s, using normal corrected vision, for marking of the kind defined in Clause 9.The damage can be assessed more easily after cl
45、eaning all fragments of pencil lead from the paint surface, using a soft cloth or swab of cotton wool (5.5) and an inert solvent. If this is done, take care that the solvent does not affect the hardness of the coating in the test area.By agreement, a magnifying lens (magnification 6 to 10) may be us
46、ed to assess the damage. If a magnifying lens is used, this shall be reported in the test report.If no marking has occurred, repeat the test (8.3 to 8.6) without overlap of the test areas, moving up the hardness scale until marking occurs over a distance of at least 3 mm.If marking has occurred, rep
47、eat the test (8.3 to 8.6) down the hardness scale until marking no longer occurs.Determine which of the defects of the kinds defined in Clause 9 has been produced.The hardness of the hardest pencil which does not mark the coating is the so-called pencil hardness.By agreement, the test may also be ca
48、rried out to determine the minimum pencil hardness which does not cause a cohesive fracture (the so-called “gouge” hardness as defined in ASTM D3363). If the test is done this way, this shall be reported in the test report.8.7 Carry out the test in duplicate. If the two results differ by more than o
49、ne unit of pencil hardness, discard them and repeat the test.7DIN EN ISO 15184:2013-02 EN ISO 15184:2012 (E) 9 Types of defectMarking by pencil leads covers a range of defects in the surface of the paint film.These defects are defined as follows:a) Plastic deformation: a permanent indentation in the paint surface without cohesive fracture.b) Cohesive fracture: the presence of a visible scratch or rupture in the surfa
