DIN EN ISO 8502-4-2017 Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 4 Guidance on the .pdf

1、May 2017 English price group 13No 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!%d“2659656www.din.deDIN EN

2、 ISO 8502-4Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanliness Part 4: Guidance on the estimation of the probability of condensation prior to paint application (ISO 85024:2017);English version EN ISO 85024:2017,English tra

3、nslation of DIN EN ISO 8502-4:2017-05Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen Prfungen zum Beurteilen der Oberflchenreinheit Teil 4: Anleitung zum Abschtzen der Wahrscheinlichkeit von Taubildung vor dem Beschichten (ISO 85024:2017);Englische Fassung EN ISO 85024:20

4、17,Englische bersetzung von DIN EN ISO 8502-4:2017-05Prparation des subjectiles dacier avant application de peintures et de produits assimils Essais pour apprcier la propret dune surface Partie 4: Principes directeurs pour lestimation de la probabilit de condensation avant application de peinture (I

5、SO 85024:2017);Version anglaise EN ISO 85024:2017,Traduction anglaise de DIN EN ISO 8502-4:2017-05SupersedesDIN EN ISO 85024:199906www.beuth.deDocument comprises 36 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN EN I

6、SO 8502-4:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN ISO 8502-4:2017) 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 respo

7、nsible German body involved in its preparation was DIN-Normenausschuss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committees NA 002-00-10-04 UA “Surface preparation and testing” and NA 002-00-10 AA “Corrosion protection of steel structure

8、s”. DIN EN ISO 8502 consists of the following 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

9、on steel surfaces prepared for painting (pressure-sensitive 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 Bresl

10、e method Part 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 ions The DIN Standard corresponding to the Int

11、ernational Standard referred to in this document is as follows: ISO 8601 DIN ISO 8601 For the International Standards ISO 4677-1 and ISO 4677-2 referred to in this standard, there are no national standards available. DIN EN ISO 8502-4:2017-05 3 Amendments This standard differs from DIN EN ISO 8502-4

12、:1999-06 as follows: a) normative references have been updated; b) in 4 a), “mercury thermometer” has been replaced by “thermometer”; c) in the note to 4 b), additional information has been included; d) in 4 d), a description for combined instruments has been included; e) in Clause 4, notes on instr

13、ument properties have been included; f) in 5.2, “at a given atmospheric pressure” has been amended to read “Their parameters are air temperature and relative humidity at a given atmospheric pressure”; g) in 5.3, it has been added that non-contact thermometers should not be used; h) 5.4 has been amen

14、ded to account for the definition of high and low risk of condensation given in Clause 3; i) in 5.5, a description of the procedure with combined instruments has been added; j) In Annex A, a reference for the formula used has been added. Previous editions DIN EN ISO 8504-2: 1999-06 National Annex NA

15、 (informative) Bibliography DIN ISO 8601, Data elements and interchange formats Information interchange Representation of dates and times DIN EN ISO 8502-4:2017-05 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8502-4 February 2017 ICS 25.220.10 Supersede

16、s EN ISO 8502-4:1999English Version Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 4: Guidance on the estimation of the probability of condensation prior to paint application (ISO 8502-4:2017) Prparation des

17、subjectiles dacier avant application de peintures et de produits assimils - Essais pour apprcier la propret dune surface - Partie 4: Principes directeurs pour lestimation de la probabilit de condensation avant application de peinture (ISO 8502-4:2017) Vorbereitung von Stahloberflchen vor dem Auftrag

18、en von Beschichtungsstoffen - Prfungen zum Beurteilen der Oberflchenreinheit - Teil 4: Anleitung zum Abschtzen der Wahrscheinlichkeit von Taubildung vor dem Beschichten (ISO 8502-4:2017) This European Standard was approved by CEN on 19 September 2016. CEN members are bound to comply with the CEN/CEN

19、ELEC 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

20、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 same status as the of

21、ficial 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, Netherland

22、s, 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

23、rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8502-4:2017 EEuropean foreword .3Introduction . 61 Scope . 72 Normative references 73 Probability of condensation . 74 Instruments . 85 Procedure. 96 Test report . 9Annex A (informative)

24、Table for determination of dew-point 11Bibliography .32Contents PageDIN EN ISO 8502-4:2017-05 EN ISO 8502-4:2017 (E) 2Foreword .4European foreword This document (EN ISO 8502-4:2017) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Committee CE

25、N/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 national standards shall be withdrawn at the l

26、atest 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 supersedes EN ISO 8502-4:1999. According to the CE

27、N-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, Hunga

28、ry, 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 8502-4:2017 has been approved by CEN as EN ISO 8502-4:2017 with

29、out any modification. DIN EN ISO 8502-4:2017-05 EN ISO 8502-4:2017 (E)3 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 techn

30、ical 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 part in the work. ISO collaborates closely

31、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 particular the different approval criteria neede

32、d 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 of this document may be the subject of patent

33、 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 www .iso .org/ patents).Any trade name used

34、 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 to the World Trade Organization (WTO) princ

35、iples 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 application of paints and related products.This secon

36、d edition cancels and replaces the first edition (ISO 8502-4:1993), which has been technically revised with the following changes:a) normative references have been updated;b) mercury thermometer has been replaced by thermometer in Clause 4 a);c) additional information is given in the note to Clause

37、4 b);d) combined instrument described in Clause 4 d);e) notes on instrument properties have been added in Clause 4;f) in 5.2, “at a given atmospheric pressure” has been added to read “Their parameters are air temperature and relative humidity at a given atmospheric pressure”;g) in 5.3, it has been a

38、dded that non-contact thermometers should not be used;h) 5.4 has been changed to account for the definition of high and low risk of condensation given in Clause 3;i) description of the procedure with combined instruments has been added in 5.5.j) a reference to the formula used in Annex A has been ad

39、ded.ISO 8502 consists of the following 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 stee

40、l surfaces prepared for painting (pressure-sensitive tape method)DIN EN ISO 8502-4:2017-05 EN ISO 8502-4:2017 (E) 4 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

41、tube method) Part 6: Extraction of soluble contaminants for analysis The Bresle method Part 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 determi

42、nation of water-soluble ferrous ionsDIN EN ISO 8502-4:2017-05 EN ISO 8502-4:2017 (E)5 IntroductionThe 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 tha

43、t are known to influence this performance are as follows:a) presence of rust and mill scale;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 a

44、ssessing these factors, while the ISO 8504 series provides guidance on the preparation methods 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

45、 the protective coating systems to be applied to the steel surface. Neither do they contain 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. S

46、uch recommendations are found in other documents such as national standards and codes of 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 b

47、e exposed and for the protective coating system to be used, and within the capability of 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:

48、 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 International Standards is in turn divided into separate parts.Some paints (but not all) require dry surfaces when being applied to steel structures. Thin films of condensed water on steel surfaces are mostly invisible. It is there