ASTM_D_3451_-_06_2012.pdf

Designation:D345106(Reapproved 2012)Standard Guide forTesting Coating Powders and Powder Coatings1This standard is issued under the fixed designation D3451;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 guide covers the selection and use of proceduresfor testing coating powders and powder coatings.The testmethods included are listed in Table 1.Where more than onetest method is listed for the same characteristic,no attempt ismade to indicate superiority of one method over another.Selection of the methods to be followed must be governed byexperience and the requirements in each individual case,together with agreement between the purchaser and the seller.1.2 This guide also refers to methods developed specificallyfor the coating powder industry by the Powder CoatingInstitute,PCI,and the International Organization forStandards,ISO.1.3 This guide describes the testing of coating powders asapplied by electrostatic spray,fluidized bed,or any otherapplicable method.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 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:2B117 Practice for Operating Salt Spray(Fog)ApparatusD522 Test Methods for Mandrel Bend Test of AttachedOrganic CoatingsD523 Test Method for Specular GlossD609 Practice for Preparation of Cold-Rolled Steel Panelsfor Testing Paint,Varnish,Conversion Coatings,andRelated Coating ProductsD610 Practice for Evaluating Degree of Rusting on PaintedSteel SurfacesD658 Test Method for Abrasion Resistance of OrganicCoatings by Air Blast Abrasive(Withdrawn 1996)3D660 Test Method for Evaluating Degree of Checking ofExterior PaintsD661 Test Method for Evaluating Degree of Cracking ofExterior PaintsD662 Test Method for Evaluating Degree of Erosion ofExterior PaintsD714 Test Method for Evaluating Degree of Blistering ofPaintsD772 Test Method for Evaluating Degree of Flaking(Scal-ing)of Exterior PaintsD822 Practice for Filtered Open-Flame Carbon-Arc Expo-sures of Paint and Related CoatingsD870 Practice for Testing Water Resistance of CoatingsUsing Water ImmersionD968 Test Methods for Abrasion Resistance of OrganicCoatings by Falling AbrasiveD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1014 Practice for Conducting Exterior Exposure Tests ofPaints and Coatings on Metal SubstratesD1308 Test Method for Effect of Household Chemicals onClear and Pigmented Organic FinishesD1474 Test Methods for Indentation Hardness of OrganicCoatingsD1535 Practice for Specifying Color by the Munsell SystemD1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD1729 Practice for Visual Appraisal of Colors and ColorDifferences of Diffusely-Illuminated Opaque MaterialsD1730 PracticesforPreparationof AluminumandAluminum-Alloy Surfaces for PaintingD1731 Practices for Preparation of Hot-Dip Aluminum Sur-faces for PaintingD1732 Practices for Preparation of Magnesium Alloy Sur-faces for PaintingD1735 Practice for Testing Water Resistance of Coatings1This guide is under the jurisdiction of ASTM Committee D01 on Paint andRelated Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.51 on Powder Coatings.Current edition approved June 1,2012.Published August 2012.Originallyapproved in 1975.Last previous edition approved in 2006 as D3451 06.DOI:10.1520/D3451-06R12.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 TABLE 1 List of Test MethodsSectionASTM MethodPCI ProcedureISOCoating Powder Properties:Sampling6D18988130-9Compatibility9#28130-12Lower explosion limit108130-4Particle size and distribution11.2D5861Multiple sieve and analysis11.4.1D1921,E118130-13Accelerated storage stability12Glass vial method12.2#18130-8Pourability13D18958130-5Fluidity14Cured weight loss for thermosetting coating powders15#98130-7Gel time(stroke cure)16D4217#68130-6Flow test(incline method)17D4242#78130-11Specific gravity18D5965#48130-2;8130-3Melting point determination19Application Properties:Deposition/transfer efficiency of powder coatin