ASTM_D_5367_-_08.pdf

Designation:D536708Standard Practice forEvaluating Coatings Applied Over Surfaces Treated WithInhibitors Used to Prevent Flash Rusting of Steel WhenWater or Water/Abrasive Blasted1This standard is issued under the fixed designation D5367;the number immediately following the designation indicates the year oforiginal adoption or,in the 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 covers procedures to evaluate the compat-ibility of coatings with inhibitors used to prevent flash rustingof steel before application of coatings.1.2 The inhibitors are used with water-blast cleaning surfacepreparation and may be used with or without abrasives.1.3 The manufacturer of the coatings shall be consulted toensure compatibility of inhibitors with the coatings.1.4 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 use.2.Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelB117 Practice for Operating Salt Spray(Fog)ApparatusD714 Test Method for Evaluating Degree of Blistering ofPaintsD822 Practice for Filtered Open-Flame Carbon-Arc Expo-sures of Paint and Related CoatingsD1193 Specification for Reagent WaterD1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD2247 Practice for Testing Water Resistance of Coatings in100%Relative HumidityD3359 Test Methods for Measuring Adhesion by Tape TestD4417 Test Methods for Field Measurement of SurfaceProfile of Blast Cleaned SteelD4541 Test Method for Pull-Off Strength of Coatings UsingPortable Adhesion Testers2.2 Other Standards:SSPC-SP 5 Surface Preparation Specification No.5,WhiteMetal Blast Cleaning3SSPC-SP 12/NACE No.5 Surface Preparation and Cleaningof Steel and Other Hard Materials by High and Ultrahigh-Pressure Water Jetting Prior to Recoating3SSPC-TR2/NACE 6C 198 Wet Abrasive Blast Cleaning3NACE TM-01-74 Laboratory Method for Evaluation ofProtective Coatings Used as Lining Materials in Immer-sion Surfaces43.Significance and Use3.1 Water-blast cleaning with,(SSPC-TR2/NACE 6C 198)or without,(SSPC-SP 12/NACE No.5)abrasive,results inflash rusting under some environmental conditions.Inhibitorsare used to prevent flash rusting while drying and beforecoating application.The inhibitor or reaction products of theinhibitor on the substrate becomes part of the coating systems.Coating performance may be influenced by the inhibitor.Soluble contaminants or unreacted inhibitors left on the surfaceunder the coating may cause premature failure.This practiceincludes a comparison of coating performance with and with-out inhibitors using various laboratory tests to simulate a rangeof conditions such as high moisture,marine atmospheric orwater immersion.3.2 The user or specifier must determine the specific testmethods to be used and exposure conditions.Some testmethods referenced may not be applicable to all types ofcoatings.4.Specimen Preparation4.1 Carbon steel samples of an appropriate size,in accor-dance with Specification A36/A36M for the specified testmethod shall be white metal blast-cleaned in accordance with1This 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 Jan.1,2008.Published January 2008.Originallyapproved in 1994.Last previous edition approved in 2000 as D5367 00.DOI:10.1520/D5367-08.2For 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 24th St.,6th Floor,Pittsburgh,PA 15222-4656,http:/www.sspc.org.4Available from National Association of Corrosion Engineers(NACE),1440South Creek Dr.,Houston,TX 77084-4906,http:/www.nace.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 SSPC-SP 5 and measure profile in accordance with TestMethods D4417.Select an abrasive that is suitable for use withwater-blast applications.Control panels shall be coated withthe same coating system and dry film thickness as the inhibitor-treated panels with the topcoat time as follows:Number of Panels for Each Exposure TestATopcoat Time68 h4856 hDry Blastedno inhibitor22Dry Blastedinhibitor-recommendedconcentration22Dry Blastedinhibitor-recommendedconcentration 522_AFor each of the test and topcoat times,one panel shall be designated ascontrol and shall recei