1、May 2017 English price group 10No 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 25.220.10!%dZ“2659655www.din.deDIN E
2、N ISO 8502-2Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanliness Part 2: Laboratory determination of chloride on cleaned surfaces (ISO 85022:2017);English version EN ISO 85022:2017,English translation of DIN EN ISO 8502-2:2
3、017-05Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen Prfungen zum Beurteilen der Oberflchenreinheit Teil 2: Laborbestimmung von Chlorid auf gereinigten Oberflchen (ISO 85022:2017);Englische Fassung EN ISO 85022:2017,Englische bersetzung von DIN EN ISO 8502-2:2017-05Prpar
4、ation des subjectiles dacier avant application de peintures et de produits assimils Essais pour apprcier la propret dune surface Partie 2: Recherche en laboratoire des chlorures sur les surfaces nettoyes (ISO 85022:2017);Version anglaise EN ISO 85022:2017,Traduction anglaise de DIN EN ISO 8502-2:201
5、7-05SupersedesDIN EN ISO 85022:200607www.beuth.deDocument comprises 15 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN EN ISO 8502-2:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN
6、 ISO 8502-2:2017) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” 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
7、 Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committees NA 002-00-10-04 UA “Materials and systems for corrosion protection, including test methods” and NA 002-00-10 AA “Corrosion protection of steel structures”. DIN EN ISO 8502 consists of the following parts, un
8、der the general title Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanliness: Part 2: Laboratory determination of chloride on cleaned surfaces Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensi
9、tive tape) Part 4: Guidance on the estimation of the probability of condensation prior to paint application Part 5: Measurement of chloride on steel surfaces prepared for painting Part 6: Extraction of soluble contaminants for analysis The Bresle method Part 9: Field method for the conductometric de
10、termination of water-soluble salts Part 11: Field method for the turbidimetric determination of water-soluble sulfate Part 12: Field method for the titrimetric determination of water-soluble ferrous ions The DIN Standards corresponding to the International Standards referred to in this document are
11、follows: ISO 3696 DIN ISO 3696 ISO 8502-5 DIN EN ISO 8502-5 ISO 8502-6 DIN EN ISO 8502-6 ISO 8502-9 DIN EN ISO 8502-9 ISO 10304-1 DIN EN ISO 10304-1 For the International Standards ISO 9517 and ISO/TR 15235 referred to in this standard, there are no national standards available. DIN EN ISO 8502-2:20
12、17-05 3 Amendments This standard differs from DIN EN ISO 8502-2:2006-07 as follows: a) due to health and environmental hazards, this standard has been revised so that mercurial and chrome-bearing substances are no longer used for testing and that mercury-free and chrome-free test methods are used in
13、stead; b) the previous analysis method has been deleted; c) a selection of analysis methods from other standards has been added; d) the coulometric method has been added and briefly described in an informative annex; e) the formula in Clause 7 has been replaced by Formula (1) transforming chloride c
14、oncentration in a solution into an amount of chloride on the surface; f) the standard has been editorially revised. Previous editions DIN EN ISO 8502-2: 1999-06, 2006-07 DIN EN ISO 8502-2:2017-05 4 National Annex NA (informative) Bibliography DIN EN ISO 8502-5, Preparation of steel substrates before
15、 application of paints and related products Tests for the assessment of surface cleanliness Part 5: Measurement of chloride on steel surfaces prepared for painting DIN EN ISO 8502-6, Preparation of steel substrates before application of paints and related products Tests for the assessment of surface
16、 cleanliness Part 6: Extraction of soluble contaminants for analysis The Bresle method DIN EN ISO 8502-9, Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanliness Part 9: Field method for the conductometric determination of wat
17、er-soluble salts DIN EN ISO 10304-1, Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate DIN ISO 3696, Water for analytical laboratory use Specification and test methods EUROPEA
18、N STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8502-2 February 2017 ICS 25.220.10 Supersedes EN ISO 8502-2:2005English Version Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 2: Laboratory determination of
19、chloride on cleaned surfaces (ISO 8502-2:2017) Prparation des subjectiles dacier avant application de peintures et de produits assimils - Essais pour apprcier la propret dune surface - Partie 2: Recherche en laboratoire des chlorures sur les surfaces nettoyes (ISO 8502-2:2017) Vorbereitung von Stahl
20、oberflchen vor dem Auftragen von Beschichtungsstoffen - Prfungen zum Beurteilen der Oberflchenreinheit - Teil 2: Laborbestimmung von Chlorid auf gereinigten Oberflchen (ISO 8502-2:2017)This European Standard was approved by CEN on 19 September 2016. CEN members are bound to comply with the CEN/CENEL
21、EC 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 Management Centre or
22、 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 same status as the offi
23、cial 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, Malta, Netherlands,
24、 Norway, Poland, 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: Avenue Marnix 17, B-1000 Brussels 2017 CEN All ri
25、ghts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8502-2:2017 EForeword .4Introduction 51 Scope . 62 Normative references 63 Principle 64 Reagents and materials . 65 Apparatus . 76 Procedure. 77 Expression of results 88 Test report . 8Anne
26、x A (informative) Determination of chloride by coulometric titration .10Bibliography .11Contents PageEuropean foreword .3EN ISO 8502-2:2017 (E) DIN EN ISO 8502-2:2017-05 2 European foreword This document (EN ISO 8502-2:2017) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ i
27、n 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 August 2017, and conflicting nat
28、ional standards shall be withdrawn at the latest by August 2017. 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 document superse
29、des EN ISO 8502-2:2005. 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, Former Yugoslav Republic o
30、f 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 the United Kingdom. Endorsement notice The text of ISO 8502-2:2017 has been
31、 approved by CEN as EN ISO 8502-2:2017 without any modification. EN ISO 8502-2:2017 (E) DIN EN ISO 8502-2:2017-05 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standar
32、ds is normally carried out through ISO technical committees. Each 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
33、 part in the work. ISO collaborates closely with the International 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 part
34、icular the different approval criteria needed for the different 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 o
35、f this document may be the subject of patent rights. ISO shall not 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
36、 www .iso .org/ patents).Any trade name used in this document is information given for the convenience of users and does not 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
37、 to the World Trade Organization (WTO) 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, Subcommittee SC 12, Preparation of steel substrates before applicati
38、on of paints and related products.This third edition cancels and replaces the second edition (ISO 8502-2:2005), which has been technically revised with the following changes:a) the analysis method has been deleted;b) a selection of analysis methods from other standards have been added;c) the coulome
39、tric method has been added and briefly described in an informative annex;d) the formula in Clause 7 has been replaced by Formula (1) transforming chloride concentration in a solution to amount of chloride on the surface;e) the document has been editorially revised.ISO 8502 consists of the following
40、parts, under the general title Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanliness: Part 2: Laboratory determination of chloride on cleaned surfaces Part 3: Assessment of dust on steel surfaces prepared for painting (press
41、ure-sensitive tape method) Part 4: Guidance on the estimation of the probability of condensation prior to paint application Part 5: Measurement of chloride on steel surfaces prepared for painting (ion detection tube method) Part 6: Extraction of soluble contaminants for analysis The Bresle method Pa
42、rt 9: Field method for the conductometric determination of water-soluble salts Part 11: Field method for the turbidimetric determination of water-soluble sulfate Part 12: Field method for the titrimetric determination of water-soluble ferrous ionsEN ISO 8502-2:2017 (E) DIN EN ISO 8502-2:2017-05 4 In
43、troductionThe performance of protective coatings of paint and related products applied to steel is significantly affected by the state of the steel surface immediately prior to painting. The principal factors that are known to influence this performance are as follows:a) presence of rust and mill sc
44、ale;b) presence of surface contaminants, including salts, dust, oils and greases;c) surface profile.The ISO 8501, ISO 8502 and ISO 8503 series of International Standards have been prepared to provide methods of assessing these factors, while the ISO 8504 series provides guidance on the preparation m
45、ethods that are available for cleaning steel substrates, indicating the capabilities of each in attaining specified levels of cleanliness.These series of International Standards do not contain recommendations for the protective coating systems to be applied to the steel surface. Neither do they cont
46、ain recommendations for the surface quality requirements for specific situations even though surface quality can have a direct influence on the choice of protective coating to be applied and on its performance. Such recommendations are found in other documents such as national standards and codes of
47、 practice. It will be necessary for the users of these International Standards to ensure that the qualities specified are compatible and appropriate both for the environmental conditions to which the steel will be exposed and for the protective coating system to be used, and within the capability of
48、 the cleaning procedure specified.The four series of International Standards referred to above deal with the following aspects of preparation of steel substrates before application of paints and related products: ISO 8501 on visual assessment of surface cleanliness; ISO 8502 on tests for the assessment of surface cleanliness; ISO 8503 on surface roughness characteristics of blast-cleaned steel substrates; ISO 8504 on surface preparation methods.Each of these Internation
