ASTM_D_2201_-_18.pdf

Designation:D220118Standard Practice forPreparation of Zinc-Coated and Zinc-Alloy-Coated SteelPanels for Testing Paint and Related Coating Products1This standard is issued under the fixed designation D2201;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 the preparation of zinc-coated andzinc-alloy-coated sheet steel panels to be used for testing paint,varnish,lacquer,conversion coatings,and related products.Itcovers sheet steel coated with hot dipped galvanized,one-sidegalvanized,electrogalvanized,zinc-iron alloy coatings(such asgalvanneal),and zinc-5%aluminum alloy coatings.It does notcover steel panels coated with 55%aluminum-45%zinc alloy,because these behave more like aluminum than zinc.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 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.1.4 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 Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2A653/A653M Specification for Steel Sheet,Zinc-Coated(Galvanized)or Zinc-Iron Alloy-Coated(Galvannealed)by the Hot-Dip ProcessA875/A875M Specification for Steel Sheet,Zinc-5%Alu-minum Alloy-Coated by the Hot-Dip ProcessA879/A879M Specification for Steel Sheet,Zinc Coated bythe Electrolytic Process for Applications Requiring Des-ignation of the Coating Mass on Each SurfaceA1092 Specification for Steel Sheet,as Cold-Reduced,forConversion toAnnealed Cold-Rolled Steel Sheet,and HotDip Metallic-Coated Steel SheetD609 Practice for Preparation of Cold-Rolled Steel Panelsfor Testing Paint,Varnish,Conversion Coatings,andRelated Coating ProductsD6386 Practice for Preparation of Zinc(Hot-Dip Galva-nized)Coated Iron and Steel Product and HardwareSurfaces for PaintingD7396 Guide for Preparation of New,Continuous Zinc-Coated(Galvanized)Steel Surfaces for Painting2.2 ISO Standards:3ISO 3575 Continuous hot-dip zinc-coated carbon steel sheetof commercial,lock-forming and drawing qualitiesISO 5002 Hot-rolled and cold-reduced electrolytic zinc-coated carbon steel sheet of commercial and drawingqualities3.Significance and Use3.1 The procedures described in this practice are designed toprovide uniform zinc coated steel panels for testing of paint,varnish,lacquer,conversion coatings and related products.3.2 The proper description of the zinc coating on thesubstrate is an important part of this practice.Seemingly slightdifferences in zinc coating can produce substantial differencesin coating performance.4.Metal Substrate4.1 The test panels shall be completely free of any visiblesigns of storage stain or white rust(zinc corrosion).All cornersand edges shall be smooth and uniformly rounded.4.2 The type of zinc coating,zinc thickness,metalthickness,and panel size shall be agreed upon between thepurchaser and seller.1This practice is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.27 on Accelerated Testing.Current edition approved Feb.15,2018.Published March 2018.Originallyapproved in 1963.Last previous edition approved in 2011 as D2201 99(2011).DOI:10.1520/D2201-18.2For 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 American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 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 4.3 Zinc coated steel may be shipped from the mills unoiled.However,zinc coated steel that has been oiled with a nonre-active rust preventative oil shall be acceptable under thisspecification.4.4 Zinc coated steel may be shipped from the mill with aphosphate pretreatment for improv