1、Designation:D579018Standard Test Method forMeasurement of Purgeable Organic Compounds in Water byCapillary Column Gas Chromatography/Mass Spectrometry1This standard is issued under the fixed designation D5790;the number immediately following the designation indicates the year oforiginal adoption or,
2、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 test method covers the identification and simulta-neous measurement of purgeable v
3、olatile organic compounds.It has been validated for treated drinking water,wastewater,and ground water.This test method is not limited to theseparticular aqueous matrices;however,the applicability of thistest method to other aqueous matrices must be demonstrated.1.2 This test method is applicable to
4、 a wide range of organiccompounds that have sufficiently high volatility and low watersolubility to be efficiently removed from water samples usingpurge and trap procedures.Table 1 lists the compounds thathave been validated for this test method.This test method is notlimited to the compounds listed
5、 in Table 1;however,theapplicability of the test method to other compounds must bedemonstrated.1.3 Analyte concentrations up to approximately 200 g/Lmay be determined without dilution of the sample.Analytesthat are inefficiently purged from water will not be detectedwhen present at low concentration
6、s,but they can be measuredwith acceptable accuracy and precision when present in suffi-cient amounts.1.4 Analytes that are not separated chromatographically,butthat have different mass spectra and non-interfering quantita-tion ions,can be identified and measured in the same calibra-tion mixture or w
7、ater sample.Analytes that have very similarmass spectra cannot be individually identified and measured inthe same calibration mixture or water sample unless they havedifferent retention times.Coeluting compounds with verysimilar mass spectra,such as structural isomers,must bereported as an isomeric
8、group or pair.Two of the three isomericxylenes are examples of structural isomers that may not beresolved on the capillary column,and if not,must be reportedas an isomeric pair.1.5 It is the responsibility of the user to ensure the validityof this test method for untested matrices.1.6 The values sta
9、ted in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.7 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
10、,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of Internation
11、al Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1129 Terminology Relating to WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on W
12、aterD3871 Test Method for Purgeable Organic Compounds inWater Using Headspace SamplingD3973 Test Method for Low-Molecular Weight HalogenatedHydrocarbons in WaterE355 Practice for Gas Chromatography Terms and Relation-ships2.2 Other Documents:Code of Federal Regulations 40 CFR Part 26133.Terminology3
13、.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminology D1129 and Practice E355.1This test method is under the jurisdiction of ASTM Committee D19 on Waterand is the direct responsibility of Subcommittee D19.06 on Methods forAnalysis forOrganic Substances in Water.Curr
14、ent edition approved Dec.15,2018.Published January 2019.Originallyapproved in 1995.Last previous edition approved in 2012 as D5790 95(2012).DOI:10.1520/D5790-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of AS
15、TMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from U.S.Government Printing Office,Superintendent ofDocuments,732 N.Capitol St.,NW,Washington,DC 20401-0001,http:/www.access.gpo.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C7
16、00,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 3.2 Definitions of Terms Specific to This Standard:3.2.1 calibration standard,na solution prepared from theprimary dilution standard sol