1、BRITISH STANDARD BS EN ISO 8504-3:2001 BS 7079-D3: 1993 Incorporating Amendment No. 1 to BS 7079-D3:1993 (renumbers the BS as BS EN ISO 8504-3:2001) Preparation of steel substrates before application of paints and related products Part 3: Hand- and power-tool cleaning This European Standard EN ISO 8
2、504-3:2001 has the status of a British Standard UDC 667.648.1:669.14:621.7.02 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN ISO 8504-3:2001 This British Standard, having been prepared under the direction of the Surface Treatments and Coatings Standards Policy Committee,
3、 was published under the authority of the Standards Board and comes into effect on 15 November 1993 BSI 17 October 2001 The following BSI references relate to the work on this standard: Committee reference STC/21 Draft for comment 92/52966 DC ISBN 0 580 22372 8 Committees responsible for this Britis
4、h Standard The preparation of this British Standard was entrusted by the Surface Treatments and Coatings Standards Policy Committee (STC/-) to Technical Committee STC/21, upon which the following bodies were represented: Association of Consulting Engineers British Chemical Engineering Contractors As
5、sociation British Coatings Federation Ltd. British Constructional Steelwork Association Ltd. British Gas plc British Grit Association British Railways Board British Steel Industry Department of Transport Electricity Association Institute of Corrosion National Federation of Painting and Decorating Co
6、ntractors Oil and Colour Chemists Association Paint Research Association Royal Society of Chemistry Amendments issued since publication Amd. No. Date Comments 13357 17 October 2001 Implementation of the European StandardBS EN ISO 8504-3:2001 BSI 17 October 2001 i Contents Page Committees responsible
7、 Inside front cover Foreword ii Introduction 1 1S c o p e 2 2 Normative references 2 3 Definitions 2 4 Procedure 3 5 Reference standards 3 6I n s p e c t i o n 3 Annex A (informative) Types of hand tools and their uses 4 Annex B (informative) Types of power tools and their uses 4 Annex ZA (normative
8、) Normative references to international publications with their relevant European publications 5 List of references 7BS EN ISO 8504-3:2001 ii BSI 17 October 2001 National foreword This British Standard is the official English language version of EN ISO 8504-3:2001. It is identical with ISO 8504-3:19
9、93. The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalog
10、ue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document compri
11、ses a front cover, an inside front cover, pages i and ii, the EN ISO title page, the EN ISO foreword page, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8504-3 Ma
12、y 2001 ICS 25.220.10 English version Preparation of steel substrates before application of paints and related products Surface preparation methods Part 3: Hand- and power-tool cleaning (ISO 8504-3:1993) Prparation des subjectiles dacier avant application de peintures et de produits assimils Mthodes
13、de prparation des subjectiles Partie 3: Nettoyage la main et la machine (ISO 8504-3:1993) Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen Verfahren fr die Oberflchenvorbereitung Teil 3: Reinigen mit Handwerkzeugen und mit maschinell angetriebenen Werzeugen (ISO 8504-3:199
14、3) This European Standard was approved by CEN on 7 March 2001. 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 alteration. Up-to-date lists and bibliographical ref
15、erences concerning such national standards may be obtained on application to the 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 in
16、to its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Sp
17、ain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nat
18、ional Members. Ref. No. EN ISO 8504-3:2001 EEN ISO 8504-3:2001 BSI 17 October 2001 Foreword The text of the International Standard from Technical Committee ISO/TC 35, Paints and varnishes, of the International Organization for Standardization (ISO) has been taken over as an European Standard by Tech
19、nical 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 November 2001, and conflicting national standards shall b
20、e withdrawn at the latest by November 2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland,
21、 Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. NOTE Normative references to International Standards are listed in annex ZA (normative).EN ISO 8504-3:2001 BSI 17 October 2001 1 Introduction The performance of protective coatings of paint and rela
22、ted 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: a) the presence of rust and mill scale; b) the presence of surface contaminants, including salts, dust, oil
23、s and greases; c) the surface profile. International Standards ISO 8501, ISO 8502 and ISO 8503 have been prepared to provide methods of assessing these factors, while ISO 8504 provides guidance on the preparation methods that are available for cleaning steel substrates, indicating the capabilities o
24、f each in attaining specified levels of cleanliness. These International Standards do not contain recommendations for 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 su
25、rface 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 practice. It will be necessary for the users of these International Standards to ensure that t
26、he 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; within the capability of the cleaning procedure specified. The four International Standards referred to above deal with th
27、e following aspects of preparation of steel substrates: ISO 8501 Visual assessment of surface cleanliness; ISO 8502 Tests for the assessment of surface cleanliness; ISO 8503 Surface roughness characteristics of blast-cleaned steel substrates; ISO 8504 Surface preparation methods. Each of these Inter
28、national Standards is in turn divided into separate parts. The primary objective of surface preparation is to ensure the removal of deleterious matter and to obtain a surface that permits satisfactory adhesion of the priming paint to the steel. It should also assist in reducing the amounts of contam
29、inants that initiate corrosion. This part of ISO 8504 describes methods for hand- and power-tool cleaning. It should be read in conjunction with ISO 8504-1. Hand- and power-tool cleaning are methods of surface preparation that generally provide a surface cleanliness which is inferior to that achieve
30、d by abrasive blast-cleaning. When a result similar to that of abrasive blast-cleaning is required, these methods need in most cases the use of more than one type of power tool which makes surface preparation complicated and expensive. It is usually not possible to remove oil, grease and corrosion-s
31、timulating substances such as chlorides and sulfates. Power-tool cleaning will generally provide a better foundation for the priming paint than hand-tool cleaning, which will result in better paint performance. Hand- and power-tool cleaning are both suitable methods for surface preparation. Hand-too
32、l cleaning particularly requires the use of priming paints having good surface wetting ability. Power-tool cleaning is appropriate when a higher-quality surface preparation grade is required and when blast-cleaning is not permitted or the interested parties decide that it is not feasible. Representa
33、tive photographic examples for St 2, St 3, PSt 2, PSt 3 and PMa are available (see ISO 8501-1 and ISO 8501-2) for assessing some new and previously coated steel surfaces cleaned using hand or power tools. Because of the many different situations that arise in the preparation of surfaces, these photo
34、graphs may not be sufficient to describe specific instances and it is recommended that special photographs of a treated reference area that are acceptable to the interested parties be produced for use as a basis for further surface preparation procedures.EN ISO 8504-3:2001 2 BSI 17 October 2001 1 Sc
35、ope This part of ISO 8504 describes methods for hand-tool and power-tool cleaning of steel substrates before application of paints and related products. It applies both to new steelwork and to steel surfaces that have been coated previously and that show areas of breakdown requiring maintenance pain
36、ting. It describes the equipment to be used and the procedure to be followed. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 8504. At the time of publication, the editions indicated were valid. All st
37、andards are subject to revision, and parties to agreements based on this part of ISO 8504 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 850
38、1-1:1988, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings. ISO 8501-2: 1) , Preparatio
39、n of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 2: Preparation grades of previously coated steel substrates after localized removal of previous coatings. ISO 8504-1:1992, Preparation of steel substrates before application of paint
40、s and related products Surface preparation methods Part 1: General principles. 3 Definitions For the purposes of this part of ISO 8504, the following definitions apply. 3.1 hand-tool cleaning method of preparing steel substrates by the use of hand tools, without power assistance NOTE 1 Chipping hamm
41、ers, hand scrapers, hand wire brushes, abrasive papers and plastic fleece with embedded abrasive are generally used. Hand-tool cleaning is sometimes carried out initially in order to remove relatively loose contaminants prior to the use of power tools. 3.2 power-tool cleaning method of preparing ste
42、el substrates by the use of power-assisted hand tools, but excluding blast-cleaning NOTE 2 Rotary de-scalers, rotary wire brushes, sanding machines, sanding discs, rotary abrasive-coated paper wheels (flap wheels), abrasive grinders, plastic fleece with embedded abrasive, chipping hammers and needle
43、 guns, driven by electric or pneumatic power, are examples of equipment generally used. 3.3 solvent cleaning method for removing visible oil, grease, soil and machining lubricants, and other soluble contaminants, from steel surfaces NOTE 3 These methods generally include simple wiping with cloths mo
44、istened with the solvent, total or partial immersion in the solvent, solvent spray systems and treatment with water or steam with or without emulsion or alkaline cleaners. 3.4 contaminated surface surface on which matter deleterious to the performance of a protective coating system is present NOTE 4
45、 Typical contaminants include slag, rust, laminated rust scale, mill scale, oil, grease, welding flux and weld spatter, soluble iron corrosion products and other soluble salts, including chlorides and sulfates. 3.5 cleaned surface surface from which the contaminants have been removed to a specified
46、level 1) To be published.EN ISO 8504-3:2001 BSI 17 October 2001 3 4 Procedure CAUTION All the cleaning operations described in this part of ISO 8504 shall be carried out in compliance with applicable safety regulations. 4.1 Initial treatment Before hand- and/or power-tool cleaning, remove heavy oil
47、or grease by means of a scraper and then, as far as possible, remove further contamination by one or a combination of the following methods: a) brushing with stiff fibre or wire brushes; b) abrasion (see Annex B) c) cleaning with appropriate solvents or solutions (for example emulsion or detergent c
48、leaners), provided that they are followed by rinsing with potable (tap) water; NOTE 5 The solvents or solutions may be applied with a stiff fibre or wire brush. d) treatment with potable (tap) water or steam. 4.2 Hand-tool cleaning (see Annex A) Hand-tool cleaning should preferably be carried out in
49、 the following sequence of operations: a) Use impact hand tools to remove laminated rust and rust scale. b) Use impact hand tools to remove all loose weld slag and weld spatter. c) Use hand wire brushing, hand abrading, hand scraping or other similar non-impact methods to remove all loose mill scale, all loose or non-adherent rust and all loose paint. 4.3 Power-tool cleaning (see Annex B) Power-tool cleaning should preferably be carried out in the following sequence of operations, modified as necessary if hand-tool c
