1、Designation:D422805(Reapproved 2012)Standard Practice forQualification of Coating Applicators for Application ofCoatings to Steel Surfaces1This standard is issued under the fixed designation D4228;the number immediately following the designation indicates the year oforiginal adoption or,in the case
2、of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice provides a standard qualifying method forcoating applicators to verify their proficie
3、ncy and ability toattain the required quality for application of specified coatingsto steel surfaces including those in safety-related areas in anuclear facility.1.2 Variations or simplifications of the practice set forthherein may be appropriate for special coating work such asmaintenance or qualif
4、ications of equipment suppliers shoppersonnel.It is not the intent of this practice to mandate asingular basis for all qualifications.1.3 Evaluation of the coating applicator being qualified inaccordance with this practice,shall be by qualified agents asspecified in 4.1.Reports shall be prepared as
5、specified inSection 5,and certification as specified in Section 6.1.4 It is the intent of this practice to judge only the ability ofthe coating applicator to apply specified coatings with theproper tools and equipment.1.5 The values stated in inch-pound units are to be regardedas the standard.The va
6、lues given in parentheses are forinformation only.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regu
7、latory limitations prior to use.2.Terminology2.1 Definitions:2.1.1 coating applicator,nan individual who has workedin the painting trade sufficiently long enough to master the useof all applicable tools and the materials being applied.2.1.2 governing documents,ntechnical specifications,jobsite proce
8、dures,and reference documents.2.1.3 qualifying agents,nthe designated representatives ofthe owner or of the coating organization,or both,who havesufficient experience in the practical application and evaluationof coatings applied to steel surfaces.3.Application of Coatings3.1 This practice requires
9、the coating applicator to apply thespecified coating in conformance to the governing documentsto a test panel similar to that detailed in Fig.1.A physical testarea may be selected by the owner/representative.The test areashall simulate job conditions and acceptance criteria shall bethe specification
10、 requirement.This panel is typical of the panelused for qualification,and may be modified to suit siteconfigurations.3.2 This practice requires the coating applicator to performthe application using the proper technique and applicationequipment consistent with the specified coating materials.3.3 The
11、 surfaces of the test panel shall be prepared inaccordance with the governing documents.3.4 Place the test panel approximately 12 in.(305 mm)above ground level and at approximately 30 from the verticalplane,with the complex side up.This will simulate the types ofdifficult coating situations encounte
12、red by coating applicators.3.5 The coating applicator shall demonstrate his ability toapply the specified coating to a uniform dry-film thickness inaccordance with the governing documents,as evaluated by thequalifying agents.3.6 Allow required drying as prescribed by the governingdocuments prior to
13、taking the dry-film thickness reading of theapplied coating.If a coating system specified requires multiplecoats,treat each coat as a separate application,allowing aspecified drying time before inspecting each completed coat.3.7 The coating applicator shall be provided with thefollowing:3.7.1 Inform
14、ationregardingthespecifiedcoatingmaterial(s),including wet and dry film thickness required,andall other information contained in the governing documents forthe coating system being applied.3.7.2 Coating materials properly mixed in accordance withthe governing documents and ready for application.1Thi
15、s practice is under the jurisdiction of ASTM Committee D33 on ProtectiveCoating and Lining Work for Power Generation Facilities and is the directresponsibility of Subcommittee D33.05 on Application and Surface Preparation.Current edition approved Sept.15,2012.Published September 2012.Originallyappro
16、ved in 1983.Last previous edition approved in 2005 as D4228 05.DOI:10.1520/D4228-05R12.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.7.3 The necessary equipment for the proper application ofthe specified coating.3.7.4 Miscellaneous equipment,brushes,and thinners re-quired for cleaning the equipment after completion of the test.3.7.5 A practice area to adjust and test the equipment priorto performing the test.3.7.6 All necessary sa
