ASTM_D_5606_-_19.pdf

Designation:D560619Standard Specification forToluene for Toluene Diisocyanate(TDI)Feedstock1This standard is issued under the fixed designation D5606;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 specification covers toluene for toluene diisocya-nate(TDI)feedstock.1.2 The following applies to all specified limits in thisspecification:for purposes of determining conformance withthis specification,an observed value or a calculated value shallbe rounded off to the nearest unit in the last right-hand digitused in expressing the specification limit,in accordance withthe rounding-off method of Practice E29.1.3 Consult OSHA regulations and suppliers Safety DataSheets for all materials used in this specification.1.4 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.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:2D848 Test Method for Acid Wash Color of Industrial Aro-matic HydrocarbonsD3437 Practice for Sampling and Handling Liquid CyclicProductsD5386 Test Method for Color of Liquids Using TristimulusColorimetryD7504 Test Method for Trace Impurities in MonocyclicAromatic Hydrocarbons by Gas Chromatography andEffective Carbon NumberD8005 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2680 Test Method for Appearance of Clear,TransparentLiquids(Visual Inspection Procedure)2.2 Other Document:OSHA Regulations,29 CFR paragraphs 1910.1000 and1910.120033.Properties3.1 Toluene for TDI feedstock shall conform to the follow-ing requirements:PropertySpecificationASTM Test MethodAPurity,min,mass%99.9D7504Acid wash color,maxpass with 2D848Benzene,max,mg/kg300D7504Nonaromatics,max,mass%0.1D7504Ethylbenzene,max,mg/kg300D7504Xylenes,max,mg/kg500D7504Appearance,free of haze,particulates or suspended matterparticlespassE2680Color,max,PtCo scale10D5386 or D8005AIf more than one method is listed,the producer and user should agree on thereferee method.4.Sampling4.1 Sample the material in accordance with Practice D3437.5.Keywords5.1 impurities in toluene;toluene;toluene diisocyanatefeedstock1This specification is under the jurisdiction of ASTM Committee D16 onAromatic,Industrial,Specialty and Related Chemicals and is the direct responsi-bility of Subcommittee D16.01 on Benzene,Toluene,Xylenes,Cyclohexane andTheir Derivatives.Current edition approved Nov.1,2019.Published November 2019.Originallyapproved in 1994.Last previous edition approved in 2017 as D5606 17.DOI:10.1520/D5606-19.2For 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.3Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.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 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,P