ASTM_D_209_-_81_2019.pdf

Designation:D20981(Reapproved 2019)Standard Specification forLampblack Pigment1This standard is issued under the fixed designation D209;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers the pigment commerciallyknown as lampblack.The pigment may be purchased in the dryform or as a paste in oil.1.2 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:2D185 Test Methods for Coarse Particles in PigmentsD387 Test Method for Color and Strength of ChromaticPigments with a Mechanical MullerD1208 Test Methods for Common Properties of CertainPigments3.Composition and Properties3.1 Dry PigmentThe pigment shall be made by burningoils or tars in such a manner as to form a deposit of carbon orsoot.It shall be high grade in every respect and shall be freefrom oil,greasy matter,and admixture of any other substance.The pigment shall conform to the following requirements:Ash,max,%0.5Acetone extract,max,%1.0Moisture and other volatile matter,max,%3.0Coarse particles,(total residue retained on a45-m(No.325)sieve),max,%0.5Tone when diluted with zinc oxideclear-blue-gray3.2 Paste in OilThe paste in oil shall be made bythoroughly grinding the specified pigment with linseed oil.Asreceived it shall not be caked in the container,and shall breakup readily in oil to form a smooth paint of brushing consis-tency.It shall mix readily in all proportions,without curdling,with linseed oil,turpentine,or volatile petroleum spirits,or anymixture of these substances.The paste shall conform to thefollowing requirements:Pigment,min,%25Linseed oil,max,%75Moisture and other volatile matter,max,%0.7Coarse particles and skins(total residue retained on a45-m(No.325)sieve),max,%of the dry pigment1.03.3 The mass color and character of the tint and the tintingstrength formed by a mixture with a white pigment shall bewithin mutually agreed-upon limits of a standard acceptable toboth the purchaser and the seller.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 samples for each10 000 lb(4540 kg),except that for shipments of less than10 000 lb two samples shall be taken.At the option of thepurchaser,the samples may be tested separately or afterblending in equal quantities the samples from the sameproduction unit to form a composite sample.5.Test Methods5.1 Tests shall be conducted in accordance with the follow-ing test methods.Test procedures not covered by ASTM testmethods shall be mutually agreed upon between the purchaserand the seller.5.2 Coarse ParticlesTest Methods D185.5.3 Pigment,Linseed Oil,and Moisture and Other VolatileMatter in Paste in OilTest Methods D1208.5.4 Mass Color and Tinting StrengthTest Method D387.6.Keywords6.1 carbon;lampblack;linseed oil;pigment;soot1This specification is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.31 on Pigment Specifications.Current edition approved June 1,2019.Published June 2019.Originallyapproved in 1924.Last previous edition approved in 2012 as D209 81(2012).DOI:10.1520/D0209-81R19.2For 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.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 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard.Users of this standard are expressly advised that determination of the validity of any such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible tech