ASTM_D_6602_-_13_2018.pdf

Designation:D660213(Reapproved 2018)Standard Practice forSampling and Testing of Possible Carbon Black FugitiveEmissions or Other Environmental Particulate,or Both1This standard is issued under the fixed designation D6602;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 practice covers sampling and testing for distin-guishingASTM type carbon black,in the N100 to N900 series,from other environmental particulates.1.2 This practice requires some degree of expertise on thepart of the microscopist.For this reason,the microscopist musthave adequate training and on-the-job experience in identifyingthe morphological parameters of carbon black and generalknowledge of other particles that may be found in the envi-ronment.In support of this analysis,Donnets book2is highlyrecommended to be used as a technical reference for recogniz-ing and understanding the microstructure of carbon black.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 This standard may involve hazardous materials,operations,and equipment.This standard does not purport toaddress all of the safety concerns,if any,associated with itsuse.It is the responsibility of the user of this standard toestablish appropriate safety,health,and environmental prac-tices and determine the applicability of regulatory limitationsprior to use.1.5 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:3D1619 Test Methods for Carbon BlackSulfur ContentD3053 Terminology Relating to Carbon BlackD3849 Test Method for Carbon BlackMorphologicalCharacterization of Carbon Black Using Electron Micros-copy3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 aciniformshaped like a cluster of grapes.3.1.1.1 DiscussionThe spheroidal primary particles ofcarbon black are fused into aggregates of colloidal dimensionforming an acinoform morphology.3.1.2 aciniform carboncolloidal carbon having a mor-phology consisting of spheroidal primary particles(nodules)fused together in aggregates of colloidal dimension in a shapehaving grape-like clusters or open branch-like structures3.1.3 carbon black,nan engineered material,primarilycomposed of elemental carbon,obtained from the partialcombustion or thermal decomposition of hydrocarbons,exist-ing in the form of aggregates of aciniform morphology whichare composed of spheroidal primary particles characterized byuniformity of primary particle sizes within a given aggregateand turbostratic layering within the primary particles.3.1.3.1 DiscussionParticle size and aggregate size(num-ber of particles per aggregate)are distributional properties andvary depending on the carbon black grade.Transmissionelectron micrographs shown in Annex A2 demonstrate thatwhile particle and aggregate sizes vary greatly within a givengrade of carbon black,the primary particle size is essentiallyuniform within an individual aggregate.1This practice is under the jurisdiction of ASTM Committee D24 on CarbonBlack and is the direct responsibility of Subcommittee D24.66 on Environment,Health,and Safety.Current edition approved June 1,2018.Published August 2018.Originallyapproved in 2000.Last previous edition approved in 2013 as D6602 13.DOI:10.1520/D6602-13R18.2Hess,W.M.and Herd,C.R.,Carbon Black Science and Technology,Edited byDonnet,J.B.,Bansal,R.C.,and Wang,M.J.,Marcel Dekker,Inc.,New York,NY,1993,pp.89173.3For 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 3.1.4 chain of custodya document describing the condi-tion of a sample during its collection,analysis,and disposal.3.1.5 chara particulate larger than 1 m made by incom-plete combustion which may not deagglomerate or disperse byordinary techniques,may contain material which is not black,and may contain some of the original materials cell structure,minerals,ash,cinders,and so forth.3.1.6