1、Designation:D782320Standard Test Method forDetermination of Low Level Phthalates in Poly(VinylChloride)Plastics by Thermal DesorptionGasChromatography/Mass Spectrometry1This standard is issued under the fixed designation D7823;the number immediately following the designation indicates the year ofori
2、ginal 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.Scope*1.1 This test method provides a procedure to identify andquantify phthal
3、ates by thermal desorption(TD)gas chroma-tography(GC)mass spectrometry(MS).Six phthalates areused to demonstrate the use of the procedure:BBP,DBP,DEHP,DNOP,DINP and DIDP.1.2 Within the context of this method,“low level”is definedas 1000 ppm.1.3 The values in SI units are to be regarded as standard.1
4、.4 This test method includes references,notes and foot-notes that provide explanatory material.These notes andfootnotes(excluding those in the tables and figures)shall notbe considered as requirements of this method.1.5 This standard does not purport to address all of thesafety concerns,if any,assoc
5、iated 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.NOTE1The method can be extended to include other ortho-phthalatesin a number of polymeri
6、c substrates.NOTE2There is no known ISO equivalent to this standard.1.6 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-men
7、dations 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 Chromatograp
8、hyD7083 Practice for Determination of Monomeric Plasticiz-ers in Poly(Vinyl Chloride)(PVC)by Gas Chromatogra-phyE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE355 Practice for Gas Chromatography Terms and Relation-shipsE594 Practice for Testing Flame Ionization Detectors U
9、sedin Gas or Supercritical Fluid ChromatographyE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodIEEE/ASTM SI10 Practice for Use of the InternationalSystem of Units(SI),the Modernized Metric System2.2 ASTM Adjuncts:Adjunct to D7823 Vinyl Plasticizer Libr
10、aryTotal IonChromatograms and Mass Spectra33.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 E594,E355,or SI10.3.3 Compounds and Instrumentation:3.3.1
11、(DOA)Hexanedioic acid,1,6bis(2ethylhexyl)esterCAS#1032313.3.2(DINCH)1,2Cyclohexanedicarboxylic acid,dinonylester,branched and linear CAS#4749195903.3.3(DBP)1,2Benzenedicarboxylic acid,1,2dinbutylester CAS#847423.3.4(BBP)Benzyl butyl phthalate CAS#856873.3.5(DEHP)Bis(2ethyhexyl)phthalate CAS#1178173.
12、3.6(DNOP)Di(noctyl)phthalate CAS#1178401This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.70 on Analytical Methods.Current edition approved Feb.1,2020.Published March 2020.Originallyapproved in 2013.Last previous edition
13、approved in 2018 as D7823 18.DOI:10.1520/D7823-20.2For 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
14、ASTM International Headquarters.Order Adjunct No.ADJD7823S-EA.Original adjunct produced in 2016.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was
15、 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.3.3.7(DINP)1,2Ben
16、zenedicarboxylic acid,diC810branched alkyl esters,C9rich(Jayflex)CAS#685154803.3.8(DINP)1,2Benzenedicarboxylic acid,1,2diisononyl(Palatinol)CAS#285531203.3.9(DIDP)1,2Benzenedicarboxylic acid,diC911branched alkyl esters,C10rich(Jayflex)CAS#685154913.3.10(DIDP)1,2Benzenedicarboxylic acid,1,2diisodecylCAS#267614003.3.11 TD Thermal Desorption3.3.12 GC Gas Chromatography3.3.13 GC/MS Gas Chromatography/Mass Spectrometry3.3.14 PVC Poly(vinyl chloride)3.3.15 THF GC grade or higher“Tetrahydrofuran”3.3.16
