1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Paints and varnishes Determination of resistance to liquids Part 4: Spotting methodsBS EN ISO 28124:2017EUROPEANSTANDARDNORME EUROPENNE EUROPISCHE NORMENISO2812-4December 2017ICS 87.040 Supersedes EN ISO 2812-4:2007Engl
2、ishVersionPaints and varnishes - Determination of resistance toliquids - Part 4: Spotting methods (ISO 2812-4:2017) Peintures etvernis - Dtermination de la rsistance aux liquides - Partie 4:Mthodes la tache (ISO2812-4:2017)Beschichtungsstoffe - Bestimmung derBestndigkeitgegen Flssigkeiten - Teil 4:
3、Tropf-/Fleckverfahren (ISO 2812-4:2017)This European Standard was approved by CEN on 9 December2017.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving thisEuropean Standard the status of a national standard without any alteration.Up-to
4、-date lists and bibliographical referencesconcerning 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 made bytranslatio
5、n under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC ManagementCentre has the same status as the officialversions.CEN members are the nationalstandards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former
6、 Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCO
7、MIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2017 CEN All rights of exploitation in any form and by any means reservedworldwide for CENnational Members.Ref. No. EN ISO 2812-4:2017 ENational forewordThis British Standar
8、d is the UK implementation of EN ISO 28124:2017. It is identical to ISO 28124:2017. It supersedes BS EN ISO 28124:2007, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints.A list of organizations represented on this committe
9、e can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 94849 7ICS 87.040Comp
10、liance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 28124:2017E
11、UROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2812-4 December 2017 ICS 87.040 Supersedes EN ISO 2812-4:2007English Version Paints and varnishes - Determination of resistance to liquids - Part 4: Spotting methods (ISO 2812-4:2017) Peintures et vernis - Dtermination de la rsistance aux liqui
12、des - Partie 4: Mthodes la tache (ISO 2812-4:2017) Beschichtungsstoffe - Bestimmung der Bestndigkeit gegen Flssigkeiten - Teil 4: Tropf-/Fleckverfahren (ISO 2812-4:2017) This European Standard was approved by CEN on 9 December 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regul
13、ations 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 Management Centre or to any CEN membe
14、r. 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 same status as the official versions. CE
15、N 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, Malta, Netherlands, Norway, Poland,
16、Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2017 CEN All rights of explo
17、itation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2812-4:2017 EBS EN ISO 28124:2017EN ISO 2812-4:2017 (E) 3 European foreword This document (EN ISO 2812-4:2017) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration
18、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 June 2018 and conflicting national standards sha
19、ll be withdrawn at the latest by June 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 2812-4:2007. According to
20、 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece
21、, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2812-4:2017 has been approved by CEN as EN ISO 2812-4:20
22、17 without any modification. BS EN ISO 28124:2017ISO 2812-4:2017(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 25 Apparatus . 26 Test substances 27 Sampling 28 Test panels 28.1 Substrate 28.2 Preparation and coating 28.3 Coating thickness 29 Procedure. 29.1 C
23、onditioning of the test panels . 29.2 Test conditions 39.3 Determination . 39.3.1 Method A Horizontal test panel . 39.3.2 Method B Inclined test panel . 310 Evaluation 311 Precision . 312 Test report . 4Annex A (informative) Examples of test substances 5Bibliography 7 ISO 2017 All rights reserved ii
24、iContents PageBS EN ISO 28124:2017ISO 2812-4:2017(E)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. Eac
25、h member 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 Internation
26、al Electrotechnical Commission (IEC) on all matters 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
27、types of ISO documents should be noted. This document 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
28、be held responsible for identifying any or all such 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 infor
29、mation given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (W
30、TO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, SC 9, General test methods for paints and varnishes.This second edition cancels and replaces the first editi
31、on (ISO 2812-4:2007), of which it constitutes a minor revision. The changes compared to the previous edition are as follows: the CAS numbers have been added to the reagents listed in Annex A, and a terms and definition clause has been added.A list of all parts in the ISO 2812 series can be found on
32、the ISO website.iv ISO 2017 All rights reservedBS EN ISO 28124:2017INTERNATIONAL STANDARD ISO 2812-4:2017(E)Paints and varnishes Determination of resistance to liquids Part 4: Spotting methods1 ScopeThis document specifies spotting methods for determining the resistance of an individual-layer or mul
33、ti-layer system of coating materials to the effects of liquids or paste-like products.These methods enable the testers to determine the effects of the test substance on the coating and, if necessary, to assess the damage to the substrate.2 Normative referencesThe following documents are referred to
34、in the text in such a way that some or all of their content constitutes requirements 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 Examina
35、tion and preparation of test samplesISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Determination of film thicknessISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testingISO 4618, Paints and varnishes Te
36、rms and definitionsISO 4628-1, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 1: General introduction and designation systemISO 4628-2, Paints and varnishes Evaluation of degradation of co
37、atings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 2: Assessment of degree of blisteringISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling3 Terms and definitionsFor the purposes of this document, the terms and defi
38、nitions given in ISO 4618 apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online browsing platform: available at https:/www.iso.org/obp IEC Electropedia: available at http:/www.electropedia.org/ ISO 2017 All rights reserved 1BS EN ISO 28
39、124:2017ISO 2812-4:2017(E)4 PrincipleA coated test panel is exposed to a test substance using the spotting method. The effects of the exposures are assessed in accordance with agreed criteria.5 ApparatusThe usual laboratory apparatus and, in particular, the following.5.1 Pipette, suitable for applyi
40、ng approximately 0,1 ml droplets of test substance.5.2 Burette, 50 ml, for applying test substances.5.3 Petri dishes with 60 mm diameter and 20 mm rim.6 Test substancesOne or more test substances, as agreed between interested parties, shall be used. Examples of test substances are given in Annex A.7
41、 SamplingTake a representative sample of the coating material to be tested, in accordance with ISO 15528.Pretest each sample in accordance with ISO 1513 and prepare it for further testing (see 8.2).8 Test panels8.1 SubstrateUnless otherwise agreed, use test panels conforming to the requirements of I
42、SO 1514, with dimensions of approximately 150 mm 100 mm and a thickness of 0,7 mm to 1,0 mm.8.2 Preparation and coatingPrepare each test panel as described in ISO 1514 and then coat it by the specified application method with the product or system under test. Dry (or stove) and age (if applicable) e
43、ach coated test panel for the specified time under specified conditions.8.3 Coating thicknessDetermine the dry film thickness of the coating, in micrometres, using one of the non-destructive methods specified in ISO 2808.9 Procedure9.1 Conditioning of the test panelsImmediately before testing, condi
44、tion the test panels for at least 16 h under standard conditions as specified in ISO 3270, i.e. (23 2) C and (50 5) % relative humidity.2 ISO 2017 All rights reservedBS EN ISO 28124:2017ISO 2812-4:2017(E)9.2 Test conditionsCarry out the test at the standard temperature specified in ISO 3270, i.e. (2
45、3 2) C.9.3 Determination9.3.1 Method A Horizontal test panelPerform the test in duplicate.Place the test panel horizontally. When using liquid test substances, apply them to the test panel with a pipette, making sure that the droplets do not touch one another and that the distance to the edges of th
46、e panel is at least 12 mm. Then immediately cover the test areas with the Petri dishes.When using highly viscous or paste-like test substances, apply about 0,5 cm3of each substance to the test panel and cover the areas with Petri dishes.The test duration shall be agreed between the interested partie
47、s and should reflect the end use of the coating.9.3.2 Method B Inclined test panelPerform the test in duplicate.Place the test panel in a collecting vessel at an angle of 30 to the horizontal. With the burette, and at intervals of 1 s to 2 s, apply droplets of the liquid test substance to the upper
48、section of the test panel, close to the centre of the panel, over a period of 10 min. The substance will flow down the test panel into the collecting vessel.10 EvaluationAfter the test period has expired, wipe the test panel with dry cotton wool. Clean off any dried residue of aqueous test substance
49、s under running water, and clean off the dried residue of any other test substances with a solvent that does not attack the coating.Evaluate only the area which has been in direct contact with the test substance.Unless otherwise agreed, immediately assess the test panel for blistering as specified in ISO 4628-2 and in comparison with the non-exposed areas of the panel. Rate any visible alterations as specified in ISO 4628-1.Unless otherwise agreed, reassess the exposed areas after 24
