ASTM_D_7993_-_15_2019.pdf

Designation:D799315(Reapproved 2019)Standard Guide forAnalyzing Complex Phthalates1This standard is issued under the fixed designation D7993;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 guide is established in response to regulatoryrequirements for the determination of complex branched phtha-lates by CAS numbers.This guide is intended to provideinformation on how to interpret and analyze data from achromatographic analysis involving complex phthalates withdefined CAS numbers.1.2 This guide provides a logical approach to determinelevels of complex branched phthalates meeting regulatory andCAS number requirements.1.3 The specific complex phthalates covered within thisguide are DINP and DIDP.1.4 LimitationsThis guide does not recommend any spe-cific test method.In some cases,it is necessary to deduce thequantity of substance present through the analysis and quanti-fication of its components.Although this approach is routinelyused some degree of uncertainty exists in the final result due tothe reduced accuracy of the method.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 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:2D883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3465 Test Method for Purity of Monomeric Plasticizers byGas ChromatographyD7083 Practice for Determination of Monomeric Plasticiz-ers in Poly(Vinyl Chloride)(PVC)by Gas Chromatogra-phyD7823 Test Method for Determination of Low Level Phtha-lates in Poly(Vinyl Chloride)Plastics by ThermalDesorptionGas Chromatography/Mass SpectrometryE355 Practice for Gas Chromatography Terms and Relation-shipsE594 Practice for Testing Flame Ionization Detectors Usedin Gas or Supercritical Fluid ChromatographyIEEE/ASTM SI-10 Practice for Use of the InternationalSystem of Units(SI),the Modernized Metric System2.2 Spectral Library:NIST/EPA/NIH Mass Spectral Library2.3 SPI Association Publication:“Analytical Challenges in Detecting regulated Phthalates inFlexible PVC products”SPI Flexible Vinyl ProductsDivision 23rd Annual Compounding Conference,July 17,20123.Terminology3.1 DefinitionsFor definition of plastic terms used in thistest method,see Terminologies D883 and D1600.3.2 For units,symbols,and abbreviations used in this testmethod refer to Practices E355,E594,or IEEE/ASTM SI-10.3.3 Acronyms:3.3.1 CASChemical Abstract Services1This guide is under the jurisdiction of ASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.70 on Analytical Methods.Current edition approved Aug.1,2019.Published August 2019.Originallyapproved in 2015.Last previous edition approved in 2015 as D7993-15.DOI:10.1520/D7993-15R192For 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 3.4 Compounds and Instrumentation:3.4.1(DINP)1,2-Benzenedicarboxylicacid,di-C8-10-branched alkyl esters,C9-rich CAS#68515-48-03.4.2(DINP)1,2-Benzenedicarboxylicacid,1,2-diisononylCAS#28553-12-03.4.3(DIDP)1,2-Benzenedicarboxylicacid,di-C9-11-branched alkyl esters,C10-rich CAS#68515-49-13.4.4(DIDP)1,2-Benzenedicarboxylicacid,1,2-diisodecylCAS#26761-40-03.4.5 GC Gas Chromatography3.4.6 GC-MS Gas Chromatography-Mass Spectrometry3.4.7 LC-MS Liquid Chromatography-Mass Spectrometry3.4.8 PVC Poly(Vinyl Chloride)3.4.9 Complex branched phthalates are phthalate diesters/coesters based on alcohols with a variety of branched isomers.NOTE1DINPand DIDP,used in various PVC or formulations in othermatrix are technical mixtures.When prepar