1、Designation:D21167(Reapproved 2019)Standard Specification forChrome Yellow and Chrome Orange Pigments1This standard is issued under the fixed designation D211;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.
2、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 specification covers six types of commercially purelead chromate pigments as follows:Type IPrimrose Chrome Yellow,Type IILemon Chrom
3、e Yellow,Type IIIMedium Chrome Yellow,Type IVLight Chrome Orange,Type VDark Chrome Orange,andType VIChrome Yellow for Green.1.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.3 The following hazard caveat applies to the test meth
4、odportion of this specification only.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,health,and environmentalpractices and determine the applicability of regulatory
5、limita-tions 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 Organiza
6、tion TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D126 Test Methods for Analysis of Yellow,Orange,andGreen Pigments Containing Lead Chromate and Chro-mium Oxide GreenD185 Test Methods for Coarse Particles in PigmentsD235 Specification for Mineral Spirits(Petrole
7、um Spirits)(Hydrocarbon Dry Cleaning Solvent)D387 Test Method for Color and Strength of ChromaticPigments with a Mechanical MullerD523 Test Method for Specular GlossD562 Test Method for Consistency of Paints MeasuringKrebs Unit(KU)Viscosity Using a Stormer-Type Viscom-eterD600 Specification for Liqu
8、id Paint DriersD822 Practice for Filtered Open-Flame Carbon-Arc Expo-sures of Paint and Related CoatingsD1210 Test Method for Fineness of Dispersion of Pigment-Vehicle Systems by Hegman-Type GageE97 Method of Test for Directional Reflectance Factor,45-Deg 0-Deg,of Opaque Specimens by Broad-BandFilte
9、r Reflectometry(Withdrawn 1991)32.2 Federal Specification:TT-R-266 Resin,Alkyd;Solutions43.Composition and Properties3.1 The pigments shall be chemical precipitates consistingof normal or basic lead chromates,or mixtures of these,with orwithout admixtures of other insoluble compounds of lead orother
10、 materials used in manufacture to control certain proper-ties.The pigments shall conform to the requirements forcomposition as prescribed in Table 1.3.2 The mass color and character of the tint formed bymixture with a white pigment shall be the same as,and thestrength shall be within mutually agreed
11、 upon limits of astandard acceptable to both the purchaser and the seller.3.3 When mutually agreed upon between the purchaser andthe seller as being essential to the end use of the pigment,resistance to loss of gloss,chalking,and color change shall betested as specified in 5.1.4.The exposed panel sh
12、all show nochalking,a loss of not more than 30%of the original gloss,and a color change no greater than the lightness difference.L,shown for each pigment type in Table 2.1This specification is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is
13、 the direct responsibility ofSubcommittee D01.31 on Pigment Specifications.Current edition approved June 1,2019.Published June 2019.Originallyapproved in 1925.Last previous edition approved in 2012 as D211 67(2012).DOI:10.1520/D0211-67R19.2For referenced ASTM standards,visit the ASTM website,www.ast
14、m.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.4Available from Standardization Documents O
15、rder Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/www.dodssp.daps.mil.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 prin
16、ciples 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.Sampling4.1 Two samples shall be taken at random from differentpackages from each lot,batch,days pack,or other unit ofproduction in a shipment.When no markings distinguishingbetween units of production appear,samples shall be takenfrom different packages in the ratio of two
