ASTM_D_8178_-_22.pdf

Designation:D817822Standard Terminology Relating toRecovered Carbon Black(rCB)1This standard is issued under the fixed designation D8178;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 terminology covers a compilation of definitions oftechnical terms used in the recovered carbon black industry.Terms that are generally understood or adequately defined inother readily available sources are not included.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:2D3053 Terminology Relating to Carbon Black3.Terminology3.1 Definitions:carbon black,nthis definition is under the jurisdiction ofCommittee D24 and maintained in Terminology D3053.char,nsolid carbonaceous residue formed during carboniza-tion of organic compounds.raw rCB,nsolid material resulting from thermal decompo-sition of rubber goods which contain carbon black;exhibit-ing poor dispersion so requiring milling to become rCB.recovered carbon black(rCB),nsolid product recoveredvia thermal decomposition from rubber goods which containcarbon black,which is free of wire and fabric,and whenmilled typically gives semi-reinforcing properties in rubber.DISCUSSIONA type of filler derived from post-consumer rubbergoods(feedstock)via a variety of thermal decomposition processes.This semi-reinforcing filler predominantly consisting of carbon,alsocontaining inorganic compounding ingredients originating from thefeedstock but is free of wire and fabric.This material,typicallypelletized currently marketed under the name recovered carbon black(rCB),should not be confused with“Raw rCB”which exhibits poordispersion and minimal reinforcing properties when used in rubbercompounding.recovered carbon black pellet,na relatively large agglom-erate mass that has been densified in spheroidal form tofacilitate handling and processing.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 technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,which you may attend.If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted by ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Individual reprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail);or through the ASTM website(www.astm.org).Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center,222Rosewood Drive,Danvers,MA 01923,Tel:(978)646-2600;http:/ terminology is under the jurisdiction of ASTM Committee D36 onRecovered Carbon Black(rCB)and is the direct responsibility of SubcommitteeD36.30 on Nomenclature.Current edition approved June 1,2022.Published July 2022.Originally approvedin 2018.Last previous edition approved in 2020 as D8178 20a.DOI:10.1520/D8178-22.2For 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