1、Designation:D422705(Reapproved 2017)Standard Practice forQualification of Coating Applicators for Application ofCoatings to Concrete Surfaces1This standard is issued under the fixed designation D4227;the number immediately following the designation indicates the year oforiginal adoption or,in the ca
2、se 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 profi
3、ciency and ability toattain the required quality for application of specified coatingsto concrete 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.It
4、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 specified inSection 5,and qualification as specif
5、ied 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 values given in parentheses are forinformation only
6、.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7
7、 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Tra
8、de(TBT)Committee.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 procedures,and refer
9、ence 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 coating applied to concrete surfaces.3.Application of Coatings3.1 This practice requires the coating a
10、pplicator to apply thespecified coating in conformance to the governing documentsto a test area similar to that detailed in Fig.1 and Fig.2.Aphysical test area may be selected by the owner/representative.The test area shall simulate job conditions and acceptancecriteria shall be the specification re
11、quirement.3.1.1 Ceiling SectionBeginning at the wall line,one 5 by5-ft(1.5 by 1.5-m)coating.3.1.2 Wall SectionBeginning at the floor line,one 5 by 5-ft(1.5 by 1.5-m)coating.3.1.3 Floor SectionBeginning at the wall line and con-necting with the wall section,one 5 by 5-ft(1.5 by 1.5-m)coating.3.2 This
12、 practice requires the coating applicator perform theapplication using the proper technique and application equip-ment consistent with the governing documents.3.3 The surfaces of the concrete test area shall be preparedin accordance with the governing documents.3.4 The coating applicator shall demon
13、strate the ability toapply the specified coating to a uniform dry film thickness inaccordance with the governing documents,as evaluated by thequalifying agents.3.5 When desired by the owner,one of the test surfaces mayinclude embedded steel.3.6 If a coating system specified requires multiple coats,t
14、reat each coat as a separate application,allowing a specifieddrying time before applying each succeeding coat.3.7 The coating applicator shall be provided with thefollowing:1This practice is under the jurisdiction of ASTM Committee D33 on ProtectiveCoating and Lining Work for Power Generation Facili
15、ties and is the directresponsibility of Subcommittee D33.05 on Application and Surface Preparation.Current edition approved Sept.1,2017.Published September 2017.Originallyapproved in 1983.Last previous edition approved in 2012 as D4227 05(2012).DOI:10.1520/D4227-05R17.Copyright ASTM International,10
16、0 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.7.1 Informationregardingthespecifiedcoatingmaterial(s),including wet and dry film thickness required,anda