1、Designation:D506513Standard Guide forAssessing the Condition of Aged Coatings on SteelSurfaces1This standard is issued under the fixed designation D5065;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A numb
2、er in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide describes general procedures for conductinga detailed assessment of the condition of aged coatings on steelstructures and the extent
3、 of rust breakthrough of the coatedsurface.Additional assessment may be required to supportcoating failure analyses or other job specific needs.1.2 This guide does not address the problem of determiningthe structural condition of a steel substrate.It provides proce-dures to determine the percent of
4、the surface rusted,but not theseverity,condition,or cause of such rusting.NOTE1A more comprehensive condition assessment procedure,Practice F1130,has been developed for determining the condition ofcoatings on a ship.1.3 This standard does not purport to address all of thesafety concerns,if any,assoc
5、iated 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 use.2.Referenced Documents2.1 ASTM Standards:2D610 Practice for Evaluating Degree of Rusting on PaintedSte
6、el SurfacesD660 Test Method for Evaluating Degree of Checking ofExterior PaintsD714 Test Method for Evaluating Degree of Blistering ofPaintsD3359 Test Methods for Measuring Adhesion by Tape TestD4214 Test Methods for Evaluating the Degree of Chalkingof Exterior Paint FilmsD4541 Test Method for Pull-
7、Off Strength of Coatings UsingPortable Adhesion TestersD5702 Practice for Field Sampling of Coating Films forAnalysis for Heavy MetalsD6206 Practice for Sampling of Coating FilmsD6677 Test Method for Evaluating Adhesion by KnifeD7091 Practice for Nondestructive Measurement of DryFilm Thickness of No
8、nmagnetic Coatings Applied toFerrous Metals and Nonmagnetic,Nonconductive Coat-ings Applied to Non-Ferrous MetalsF1130 Practice for Inspecting the Coating System of a Ship2.2 Steel Structures Painting Council Standard:3SSPC-PA-2 Procedure for Determining Conformance to DryCoating Thickness Requireme
9、nts3.Summary of Practice3.1 This practice for assessing the condition of coatingsconsists of identifying general types of components of astructure and assessing each separately for commonly occur-ring modes of coating deterioration and rust breakthrough ofthe coating using visual standards and simpl
10、e evaluation tools.A form for recording the results of the assessment procedure(Fig.1)is provided.4.Significance and Use4.1 Assessment of the condition of aged coated surfacesstrengthens decisions on when coating maintenance isrequired,aids in the selection of effective coating maintenanceprocedures
11、,and provides a means to characterize performanceof coating systems.5.Procedure5.1 Survey the structure to(1)determine the general typesof unique components(for example,for fuel tanks the compo-nents may be shell,roof,ladders,and piping)and the serviceexposure environment for each,(2)visually identi
12、fy areashaving a typical level of coating deterioration and rust break-through for each component and(3)identify areas having amuch greater visual level of deterioration than typical andunique environmental conditions that may correspond to these1This guide is under the jurisdiction of ASTM Committe
13、e D01 on Paint andRelated Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.46 on Industrial Protective Coatings.Current edition approved June 1,2013.Published June 2013.Originallyapproved in 1990.Last previous edition approved in 2007 as D5065 07.DOI:10.1520/D5
14、065-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Society for Protective Coatings(SSPC),40 24
15、th St.,6th Floor,Pittsburgh,PA 15222-4656,http:/www.sspc.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 areas(for example,bridge expansion joints).Record a descrip-tion of the components and their general environment on aninspectionf
16、ormanddescribeareashavinggreaterdeterioration,as well as any unique associated environments inthe remarks column.A suggested general format for datacollection is shown in Fig.1.Modification of the form(forexample,adding or deleting specific items)will be required foreach specific application.5.2 Based upon the knowledge of what constitutes typicaldeterioration for each component as determined in the initialsurvey,examine the condition of the coating on a representa-tive sample of each component.
