1、Designation:D651718Standard Guide forField Preservation of Ground Water Samples1This standard is issued under the fixed designation D6517;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 parenthes
2、es indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This guide covers methods for field preservation ofground water samples from the point of sampling throughreceipt at the laboratory.Laboratory preservation m
3、ethods arenot described in this guide.Purging and sampling techniquesare not addressed in this standard but are addressed in GuidesD6564/D6564M,D6634/D6634M,D7929,and PracticeD6771.1.2 Ground water samples are subject to chemical,physical,and biological change relative to in situ conditions at thegr
4、ound surfaces due to exposure to ambient conditions duringsample collection.Physical and chemical preservation ofsamples minimize further changes in sample chemistry that canoccur from the moment the ground water sample is retrieved,to the time it is removed from the sample container forextraction o
5、r analysis.1.3 UnitsThe values stated in SI units are to be regardedas standard.No other units of measurement are included in thisstandard.1.4 This guide offers an organized collection of informationor a series of options and does not recommend a specificcourse of action.This document cannot replace
6、 education orexperience and should be used in conjunction with professionaljudgment.Not all aspects of this guide may be applicable in allcircumstances.This ASTM standard is not intended to repre-sent or replace the standard of care by which the adequacy ofa given professional service must be judged
7、,nor should thisdocument be applied without consideration of a projects manyunique aspects.The word“Standard”in the title of thisdocument means only that the document has been approvedthrough the ASTM consensus process.1.5 This standard does not purport to address all of thesafety concerns,if any,as
8、sociated 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.1.6 This international standard was developed in accor-dance with internationally rec
9、ognized 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:2D653 Terminology Relati
10、ng to Soil,Rock,and ContainedFluidsD3694 Practices for Preparation of Sample Containers andfor Preservation of Organic ConstituentsD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4840 Guide for Sa
11、mple Chain-of-Custody ProceduresD5903 Guide for Planning and Preparing for a GroundwaterSampling EventD6089 Guide for Documenting a Groundwater SamplingEventD6564/D6564M Guide for Field Filtration of GroundwaterSamplesD6634/D6634M Guide for Selection of Purging and Sam-pling Devices for Groundwater
12、Monitoring WellsD6771 Practice for Low-Flow Purging and Sampling forWells and Devices Used for Ground-Water Quality Inves-tigationsD7929 Guide for Selection of Passive Techniques for Sam-pling Groundwater Monitoring Wells2.2 Other Documents:Standard Methods for the Examination of Water andWastewater
13、,20th ed.,19993International Air Transport Association Dangerous GoodsRegulations41This guide is under the jurisdiction ofASTM Committee D18 on Soil and Rockand is the direct responsibility of Subcommittee D18.21 on Groundwater andVadose Zone InvestigationsCurrent edition approved Dec.1,2018.Publish
14、ed December 2018.Originallyapproved in 2000.Last previous edition approved in 2012 as D6517 00(2012)1.DOI:10.1520/D6517-18.2For 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 t
15、o the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.4Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,D
16、C 20401,http:/www.access.gpo.gov.*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 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
