1、Designation: D4227 05 (Reapproved 2012)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 t
2、he case 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
3、their proficiency 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 asmain
4、tenance. 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 specified inSection 5, and qualific
5、ation 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 values given in parentheses are for
6、information 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 regulatory limitations prior to us
7、e.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 reference docume
8、nts.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 applicat
9、or 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 require
10、ment.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 Th
11、is 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 dem
12、onstrate 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 coa
13、ts,treat 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:3.7.1 Information regarding the specified coatingmaterial(s), including wet and dry film thickness required, andall other
14、information contained in the governing documents forthe coating system being applied.1This 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 P
15、reparation.Current edition approved Sept. 15, 2012. Published September 2012. Originallyapproved in 1983. Last previous edition approved in 2005 as D4227 05. DOI:10.1520/D4227-05R12.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.7.
16、2 Coating materials properly mixed in accordance withthe governing documents and ready for application.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 te
17、st.3.7.5 A practice area to adjust and test the equipment priorto performing the test.3.7.6 All necessary safety equipment.3.7.7 Wet-film thickness gage for verifying the coatingthickness during application.3.8 The coating applicator shall use the wet-film thicknessgage furnished to determine coatin
18、g thickness buildup duringapplication. Material thickness is one of the criteria forevaluation.4. Evaluation of Coating Application4.1 Evaluation of the coating applicator shall be made bytwo qualifying agents. Only one qualifying agent can beproduction-related.4.2 The qualifying agents shall be cap
19、able of answeringtechnical questions requested by the coating applicator relatingto the application of the specified coating material(s). Thequalifying agents shall be thoroughly familiar with the speci-fied coating material(s) and acceptance criteria and shall beaware of any difficulties in applyin
20、g the coating to any surface.4.3 The qualifying agents shall have a wet-film gage of thesame type used by the coating applicator.4.4 The qualifying agents shall take approximately 16wet-film thickness readings on the test areas. These readingsshall be recorded as specified in Section 5. The wet-film
21、thickness readings shall be used to verify the specified dry-filmthickness requirements and uniformity of application. Thenumber and location of readings shall be as indicated in Fig. 3.4.5 The coating applicator and the qualifying agents shallunderstand the required dry-film thickness range require
22、mentsof the governing documents before any coatings are applied.4.6 Qualifying agents shall inspect the finished surface toverify that it conforms to the requirements of the governingdocuments. A description of the appearance of the completedapplied coating shall be recorded on the form shown in Fig
23、. 4.5. Report5.1 The qualifying agents shall use a report form similar tothat in Fig. 4 to record wet-film thickness readings specified in4.4 and the appearance of the completed coating surface asspecified in 4.6.5.2 The qualifying agents and coating applicator shall signthe report form.5.3 The gene
24、ration of documentation and maintenance ofrecords shall be as delineated in the applicable project docu-ments.6. Initial Qualification6.1 The qualifying agents shall prepare a qualification formsimilar to Fig. 5. The qualification form shall state the coatingmaterials used and the application equipm
25、ent used in the test.6.2 The qualifying agents and the coating applicator shallsign the qualification form.7. Requalification7.1 The owner or his designated representative may deter-mine the degree of requalification to be permitted, as well asthe acceptance of previously qualified coating applicato
26、rsbased on time interval since the date of the qualification andprovided the same coating materials and application proce-dures are used. Note the acceptance of previous qualification inthe quality assurance file for the project.8. Limited QualificationsTouch Up and Repair8.1 Limited qualifications
27、can be accomplished using onlyareas representative of the actual plant surfaces, even thoughthey do not include all areas represented by Fig. 1 and Fig. 2.FIG. 1 Concrete Ceiling Test AreaFIG. 2 Concrete Wall and Floor Test AreaFIG. 3 Location of Wet-Film Thickness ReadingsD4227 05 (2012)29. Limited
28、 QualificationsBrushes, Rollers, Squeegees,or Other Special Tools9.1 Limited qualifications for special application tools maybe required on certain projects. When such limited qualifica-tion is performed, the limitations shall be noted on the recordsfor qualification and application.10. Keywords10.1
29、 applicator; qualifications, (initial, limited); qualifyingagents; report; requalificationsTest Application of Coating to Standard Concrete Test Areas by Coating Applicator for Qualification for Coating of Concrete SurfacesType of Recording Instrument for Wet-Film (WFT) Thickness:WFT Reading No. Flo
30、or Test Area Wall Test Area Ceiling Test Area1. _ _ _2. _ _ _3. _ _ _4. _ _ _5. _ _ _6. _ _ _7. _ _ _8. _ _ _9. _ _ _10. _ _ _11. _ _ _12. _ _ _13. _ _ _14. _ _ _15. _ _ _16. _ _ _Description of Materials:Qualifying Agent:Qualifying Agent:Date Coating Applicator:FIG. 4 Record Form for Test Applicati
31、onCoating Applicator Qualification for Application of Coatings to Concrete SurfacesCoating Applicators Name:Location (Site):Qualifying Agents:1. Representing:2. Representing:Coating System:Manufacturer:Type of Application Equipment:Comments:The above applicant has been qualified as a Coating Applica
32、tor for the application of the above coatings for concrete surfaces.Qualifying Agent:Qualifying Agent:Date: Coating Applicator:FIG. 5 Qualification FormD4227 05 (2012)3ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin t
33、his standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must
34、be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of there
35、sponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700,
36、West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D4227 05 (2012)4
