1、Designation:D346521Standard Guide forPurity of Monomeric Plasticizers by Gas Chromatography1This standard is issued under the fixed designation D3465;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、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 gas chromatographic guide covers a procedure forextending the range of purity determination of monomericplasticizers beyond that now determi
3、ned by other methods.Due to the need to volatilize the plasticizer,only monomericplasticizers having definitive boiling points and a molecularweight less than 1000 Daltons,such as dioctyl phthalate,areapplicable to this guide.1.2 The values in SI units are to be regarded as standard.1.3 The text of
4、this guide references notes and footnotes thatprovide explanatory material.These notes and footnotes(ex-cluding those in tables and figures)are not to be considered asrequirements of this guide.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It
5、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.Specific precautionary statements are given in Section 9.NOTE1There is no known ISO equivalent to this standar
6、d.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 t
7、o Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2124 Test Method for Analysis of Components in Poly(Vi-nyl Chloride)Compounds Using an Infrared Spectropho-tometric Technique(Withdrawn 20
8、20)3E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE260 Practice for Packed Column Gas ChromatographyE355 Practice for Gas Chromatography Terms and Relation-shipsE594 Practice for Testing Flame Ionization Detectors Usedin Gas or Supercritical Fluid ChromatographyE1510 Pract
9、ice for Installing Fused Silica Open TubularCapillary Columns in Gas ChromatographsIEEE/ASTM SI-10 Practice for Use of the InternationalSystem of Units(SI),the Modernized Metric System3.Terminology3.1 Definitions:3.1.1 GeneralDefinitions are in accordance with Termi-nology D883 and Terminology D1600
10、 unless otherwise indi-cated.3.1.2 All gas chromatography terms and relationships usedin this guide are consistent with,or refer to,Practice E355.4.Summary of Guide4.1 Atest portion of the plasticizer to be analyzed is injectedonto a gas chromatographic column and separated into itscomponents,which
11、are sensed by the detector and quantifiedby an electronic data acquisition system(computer).The purityis based on the percent total area response of the principalpeak(s).All other components are impurities.5.Significance and Use5.1 Infrared techniques frequently cannot detect low-levelmaterials.Gas
12、chromatographic methods possess higher sensi-tivity and are used to extend limits of detection.5.2 It is expected that this guide will be suitable forspecifications,manufacturing control,and research and devel-opment.An area percent method of determining concentrationof the components shall be used
13、if the area percent of theplasticizer is 99.0%or higher.However,if the area percent of1This guide is under the jurisdiction of ASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.70 on Analytical Methods(SectionD20.70.02).Current edition approved July 1,2021.Published
14、July 2021.Originally approvedin 1975.Last previous edition approved in 2014 as D3465-14.DOI:10.1520/D3465-21.2For 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 standard
15、s Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*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 States
16、This 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.1the plasticizer is less than 99.0%or if any question were toarise about the data,an internal standard shall be used.5.3 Impurities potentially found in monomeric plasticizersinclude alc
