ASTM_D_5098_-_05a_2010.pdf

Designation:D509805a(Reapproved 2010)Standard Specification forArtists Acrylic Dispersion Paints1This standard is issued under the fixed designation D5098;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 Thisspecificationestablishesrequirementsforcomposition,physical properties,performance,and labeling ofartists acrylic emulsion paints.1.2 This specification covers pigments,vehicles,and addi-tives.Requirements are included for pigment identification,lightfastness,bleeding,consistency,and drying time.1.3 Table 1 lists some pigments meeting the lightfastnessrequirements in this specification.In order to identify otherpigments that meet these requirements,instructions are givenfor test specimen preparation.Test methods for determiningrelative lightfastness are referenced.1.4 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.5 This pertains only to the test method section found inSections 6 and 7,and Appendix X2.This standard does notpurport to address all of the safety concerns,if any,associatedwith its use.It is the responsibility of the user of this standardto establish appropriate safety and health practices anddetermine the applicability of regulatory limitations prior touse.2.Referenced Documents2.1 ASTM Standards:2D185 Test Methods for Coarse Particles in PigmentsD279 Test Methods for Bleeding of PigmentsD387 Test Method for Color and Strength of ChromaticPigments with a Mechanical MullerD476 Classification for Dry Pigmentary Titanium DioxideProductsD602 Specification for Barium Sulfate PigmentsD1210 Test Method for Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type GageD1640 Test Methods for Drying,Curing,or Film Formationof Organic CoatingsD3168 Practice for Qualitative Identification of Polymers inEmulsion PaintsD4236 Practice for Labeling Art Materials for ChronicHealth HazardsD4303 Test Methods for Lightfastness of Colorants Used inArtists MaterialsD4838 Test Method for Determining the Relative TintingStrength of Chromatic PaintsD4941 Practice for Preparing Drawdowns of Artists PastePaintsE284 Terminology of Appearance3.Terminology3.1 Definitions:3.1.1 colour index name,nconsists of the category(typeof dye or pigment),general hue,and an assigned number givento a colorant in the Colour Index3as an international identifi-cation system.3.1.1.1 DiscussionFor example,the Colour Index Nameof one phthalocyanine blue pigment is Pigment Blue 15(PB15).3.1.2 Colour Index Number,na five-digit number given inthe Colour Index that describes the chemical constitution of acolorant.3.1.2.1 DiscussionFor example,the Colour Index Numberof one phthalocyanine blue pigment is 74160.3.1.3 Appearance terms used in this specification are de-fined in Terminology E284.3.2 Definitions of Terms Specific to This Standard:3.2.1 acrylic emulsion paint,npaint containing a stableaqueous dispersion of polymers or copolymers of acrylic acid,methacrylic acid,esters of these acids,or acrylonitrile;some-times termed latex,acrylic latex,or polymer emulsion paint.3.2.2 glycols,ngeneral term for dihydric alcohols used toprovide freeze-thaw stability in acrylic and other water-basedvehicle systems.1This specification is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.57 on Artist Paints and Related Materials.Current edition approved Dec.1,2010.Published December 2010.Originallyapproved in 1990.Last previous edition approved in 2005 as D5098 05a.DOI:10.1520/D5098-05AR10.2For 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.3Colour Index,3rd ed.,5 Vols and Revisions.The Society of Dyers andColourists,London,197175.Available from the American Association of TextileChemists and Colorists,P.O.Box 12215,Research Triangle Park,NC 27709.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 TABLE 1 Suitable Pigment ListNOTE1Underlined information and the lightfastness rating in the table shall be included on every label.Key:Lightfastness Category:Lightfastness I Excellent LightfastnessLightfastness II Very Good LightfastnessAbbreviations used in Colour Index Names:PBPigment BluePBkPigment BlackPBrPigment BrownPGPigment GreenPOPigment OrangePRPigment RedPVPigment VioletPWPigment WhitePYPigment YellowPigment Notations:(AR)Alkali Resistant(CC)Concentrated cadmium pigments may contain up to 15%barium sulfate for color control.Cadmium-barium pigments contain a much higher amount ofbarium su