1、Designation:D224801a(Reapproved 2013)Standard Practice forDetergent Resistance of Organic Finishes1This standard is issued under the fixed designation D2248;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A
2、number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This practice covers the determination of the resistanceto
3、 failure,in an accelerated manner,of organic finishes whenimmersed in a detergent solution.1.2 The values stated in SI units are to be regarded as thestandard.The values in parentheses are for information only.1.3This standard does not purport to address all of thesafety concerns,if any,associated w
4、ith 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:2D523 Test Method for Specular GlossD609 Practice for Preparation of
5、 Cold-Rolled Steel Panelsfor Testing Paint,Varnish,Conversion Coatings,andRelated Coating ProductsD610 Practice for Evaluating Degree of Rusting on PaintedSteel SurfacesD714 Test Method for Evaluating Degree of Blistering ofPaintsD823 Practices for Producing Films of Uniform Thicknessof Paint,Varnis
6、h,and Related Products on Test PanelsD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1186 Test Methods for Nondestructive Measurement ofDry Film Thickness of Nonmagnetic Coatings Applied toa Ferrous Base(Withdrawn 2006)3D1193 Specification for Reagent W
7、aterD1400 Test Method for Nondestructive Measurement of DryFilm Thickness of Nonconductive Coatings Applied to aNonferrous Metal Base(Withdrawn 2006)3D1474 Test Methods for Indentation Hardness of OrganicCoatingsD1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive En
8、vironmentsD1730 PracticesforPreparationof AluminumandAluminum-Alloy Surfaces for PaintingD2092 Guide for Preparation of Zinc-Coated(Galvanized)Steel Surfaces for Painting(Withdrawn 2008)3D2197 Test Method for Adhesion of Organic Coatings byScrape AdhesionD2244 Practice for Calculation of Color Toler
9、ances andColor Differences from Instrumentally Measured ColorCoordinatesD3359 Test Methods for Measuring Adhesion by Tape Test3.Significance and Use3.1 Any effects such as color change,blistering.loss ofadhesion,softening,or embrittlement are observed and noted.4.Apparatus4.1 ContainerA corrosion-re
10、sistant container equippedwith the means to control the solution temperature within therange specified and to control the liquid level at 65 mm(316in.).Agitation may be required to maintain temperature uni-formity.4.2 CoverThe container shall be provided with a cover toretard evaporation and to cont
11、ain the test specimens com-pletely.5.Test Specimens5.1 Unless otherwise specified,the test specimens shall be100 by 300 by 0.9 mm(4 by 12 in.by 20 gage)in size.The testspecimen composition,surface preparation,and number of testspecimens shall be agreed upon by the purchaser and the seller.NOTE1Appli
12、cable test panel description and surface preparationmethods are as follows:Practices D609,D1730 and D2092.1This 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 Testi
13、ng.Current edition approved June 1,2013.Published June 2013.Originallyapproved in 1964.Last previous edition approved in 2007 as D2248 01a(2007).DOI:10.1520/D2248-01AR13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual B
14、ook 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 6.
15、Coating of Test Specimens6.1 The method of application,film thickness,curing,andconditioning of the test surface shall be agreed upon betweenthe purchaser and the seller.NOTE2Application and film thickness measurement methods aregiven as follows:Practices D823,and Test Methods D1005,D1186,andD1400.6
16、.2 The backs,cut edges,and those areas containing iden-tification marks or in contact with the supports,shall beprotected with a suitable coating that is stable under theconditions of test.7.Detergent Solution7.1 Composition,concentration,and temperature of deter-gent solution shall be agreed upon between the purchaser andthe seller.7.1.1 Unless otherwise specified,use Type 4 deionizedwater that complies with the requirements of SpecificationD1193.7.1.2 Unless otherwise specified,the concentrati
