1、December 2016 English price group 8No 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 87.040!%“2595788www.din.deDIN EN
2、 ISO 3248Paints and varnishes Determination of the effect of heat (ISO 3248:2016);English version EN ISO 3248:2016,English translation of DIN EN ISO 3248:2016-12Beschichtungsstoffe Bestimmung der Auswirkung von Wrme (ISO 3248:2016);Englische Fassung EN ISO 3248:2016,Englische bersetzung von DIN EN I
3、SO 3248:2016-12Peintures et vernis Dtermination des effets de la chaleur (ISO 3248:2016);Version anglaise EN ISO 3248:2016,Traduction anglaise de DIN EN ISO 3248:2016-12SupersedesDIN EN ISO 3248:200009www.beuth.deDocument comprises 11 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the Ger
4、man-language original shall be considered authoritative.11.16 DIN EN ISO 3248:2016-12 2 A comma is used as the decimal marker. National foreword This document (EN ISO 3248:2016) has been prepared by Technical Committee ISO/TC 35, Subcommittee SC 9 “General test methods for paints and varnishes” (Sec
5、retariat: 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 DIN-Normenausschuss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating
6、 Materials), 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 EN ISO 1513 ISO 1514 DIN EN ISO 1514 ISO 1518-1 DIN EN ISO 1518-1
7、 ISO 1519 DIN EN ISO 1519 ISO 1520 DIN EN ISO 1520 ISO 2808 DIN EN ISO 2808 ISO 3270 DIN EN 23270 ISO 6272-1 DIN EN ISO 6272-1 ISO 15528 DIN EN ISO 15528 Amendments This standard differs from DIN EN ISO 3248:2000-09 as follows: a) cooling down of the test panels after the test has been changed from
8、standard temperature to ambient temperature; b) Clause 3 “Principle” has been added; c) normative references have been updated; d) the supplementary test conditions previously in Annex A have been integrated in the test report. Previous editions DIN ISO 3248: 1981-05 DIN EN ISO 3248: 2000-09 DIN EN
9、ISO 3248:2016-12 3 National Annex NA (informative) Bibliography DIN EN 23270, Paints, varnishes and their raw materials Temperatures and humidities for conditioning and testing DIN EN ISO 1513, Paints and varnishes Examination and preparation of test samples DIN EN ISO 1514, Paints and varnishes Sta
10、ndard panels for testing DIN EN ISO 1518-1, Paints and varnishes Determination of scratch resistance Part 1: Constant-loading method DIN EN ISO 1519, Paints and varnishes Bend test (cylindrical mandrel) DIN EN ISO 1520, Paints and varnishes Cupping test DIN EN ISO 2808, Paints and varnishes Determin
11、ation of film thickness DIN EN ISO 6272-1, Paints and varnishes Rapid-deformation (impact resistance) tests Part 1: Falling-weight test, large-area indenter DIN EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling DIN EN ISO 3248:2016-12 4 This page is intentionally bl
12、ank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3248 August 2016 ICS 87.040 Supersedes EN ISO 3248:2000English Version Paints and varnishes - Determination of the effect of heat (ISO 3248:2016) Peintures et vernis - Dtermination des effets de la chaleur (ISO 3248:2016) Beschichtungsstof
13、fe - Bestimmung der Auswirkung von Wrme (ISO 3248:2016) This European Standard was approved by CEN on 8 July 2016. 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
14、alteration. Up-to-date lists and bibliographical references concerning such national 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
15、 made by translation under the responsibility of a CEN member into its own language 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, E
16、stonia, 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, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR S
17、TANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3248:2016 EForeword 41 Scope . 5
18、2 Normative references 53 Principle 54 Limitations 55 Sampling 66 Test panels 66.1 Substrate 66.2 Preparation and coating 66.3 Drying and conditioning . 66.4 Thickness of coating . 67 Procedure. 67.1 Temperature and duration of the test . 67.2 Determination . 68 Precision . 79 Test report . 7Content
19、s PageEN ISO 3248:2016 (E) DIN EN ISO 3248:2016-12 2European foreword .3European foreword This document (EN ISO 3248:2016) 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
20、 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 February 2017, and conflicting national standards shall be withdrawn at the latest by February 2017. Attention is drawn to the possibi
21、lity 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 document supersedes EN ISO 3248:2000. According to the CEN-CENELEC Internal Regulations, the national standards or
22、ganizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
23、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 3248:2016 has been approved by CEN as EN ISO 3248:2016 without any modification. EN ISO 3248:2016 (E) DIN EN ISO 3248:2016-12 3
24、ForewordISO (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 te
25、chnical 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 matters
26、of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This documen
27、t was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such
28、patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does n
29、ot constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.
30、org/iso/foreword.html.The committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This third edition cancels and replaces the second edition (ISO 3248:1998), which has been technically revised with the following cha
31、nges:a) cooling down of the test panels after the test has been changed from standard temperature to ambient temperature;b) a principle clause has been added;c) the normative references have been updated;d) the supplementary test conditions previously in Annex A have been integrated in the test repo
32、rt.EN ISO 3248:2016 (E) DIN EN ISO 3248:2016-12 4 1 ScopeThis International Standard specifies a method for determining the resistance of single coatings or multi-coat systems of paints, varnishes or related products to changes in gloss and/or colour, blistering, cracking and/or detachment from the
33、substrate under conditions of a specified temperature.This procedure is applicable to products intended for use on domestic radiators or other articles likely to be subjected to similar temperatures.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in thi
34、s document and are indispensable for its application. 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 samplesISO 1514, Pai
35、nts and varnishes Standard panels for testingISO 1518-1, Paints and varnishes Determination of scratch resistance Part 1: Constant-loading methodISO 1519, Paints and varnishes Bend test (cylindrical mandrel)ISO 1520, Paints and varnishes Cupping testISO 2808, Paints and varnishes Determination of fi
36、lm thicknessISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testingISO 6272-1, Paints and varnishes Rapid-deformation (impact resistance) tests Part 1: Falling-weight test, large-area indenterISO 15528, Paints, varnishes and raw materials for p
37、aints and varnishes Sampling3 PrincipleThe panels are placed in an oven at a specified temperature for a specified time. At the end of the specified time, the panels are removed from the oven, cooled to ambient temperature and examined for change of colour or signs of other deterioration of the coat
38、ing, by comparison with identically prepared, but unheated, panels.When specified, both heated and unheated panels are subjected to tests for e.g. scratch resistance, bending with cylindrical mandrel, cupping, falling weight, or to other agreed test procedures and examined for compliance with a spec
39、ified requirement.4 LimitationsTemperature and humidity are important parameters affecting test results. Deviations from the requirements specified can lead to results that are not comparable. However, the interested parties may agree upon alternative parameters and these parameters shall be reporte
40、d.EN ISO 3248:2016 (E) DIN EN ISO 3248:2016-12 5 5 SamplingTake a representative sample of the product to be tested (or of each product in case of a multi-coat system), as specified in ISO 15528.Examine and prepare the sample for testing, as specified in ISO 1513.6 Test panels6.1 SubstrateThe test p
41、anel shall be of steel, tinplate, aluminium or glass as appropriate and shall comply with the requirements of ISO 1514. The dimensions of the panels shall be 150 mm 100 mm.6.2 Preparation and coatingPrepare each test panel in accordance with ISO 1514 and then coat it by the specified method with the
42、 product or system under test.6.3 Drying and conditioningDry (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) % (as specified in ISO 3270), fo
43、r a minimum period of 16 h. The test procedure shall then be carried out as soon as possible.6.4 Thickness of coatingDetermine the thickness, in micrometres, of the dried coating by one of the procedures specified in ISO 2808.7 Procedure7.1 Temperature and duration of the testCarry out the test proc
44、edure at (125 2) C for a period of 24 h, unless otherwise agreed.7.2 DeterminationPlace the panels in an oven with air circulation at the specified temperature, not less than 100 mm from the sides of the oven and not closer than 20 mm apart, and maintain them at that temperature for the specified ti
45、me. The preferred method for ensuring even heating of the coated panels is to suspend them by means of fine wires. Alternatively, the panels may be supported in a rack made from sustainable heat-resistant material or placed, paint side uppermost, on a piece of heat-resistant board resting on support
46、s.At the end of the specified time, remove the panels from the oven and allow them to cool to ambient temperature. Examine the panels for change of colour or signs of other deterioration of the coating, by comparison with identically prepared, but unheated, panels.When specified, subject both heated
47、 and unheated panels, not less than 16 h after completing the heating period, to one of the test procedures specified in ISO 1518-1, ISO 1519, ISO 1520 or ISO 6272-1, or to other agreed test procedures, and examine for compliance with the specified requirement.EN ISO 3248:2016 (E) DIN EN ISO 3248:20
48、16-12 6 8 PrecisionNo relevant precision data are currently available.9 Test reportThe test report shall contain at least the following information:a) all details necessary to identify the product(s) tested;b) a reference to this International Standard, i.e. ISO 3248:2016;c) details of the preparation of the test panels, including the following:1) the material, the thickness and the surface preparation of the substr
