ASTM_D_7758_-_17.pdf

Designation:D775817Standard Practice forPassive Soil Gas Sampling in the Vadose Zone for SourceIdentification,Spatial Variability Assessment,Monitoring,and Vapor Intrusion Evaluations1This standard is issued under the fixed designation D7758;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.Scope*1.1 PurposeThis practice covers standardized techniquesfor passively collecting soil gas samples from the vadose zoneand is to be used in conjunction with Guide D5314.1.2 ObjectivesObjectives guiding the development of thispractice are:(1)to synthesize and put in writing good com-mercial and customary practice for conducting passive soil gassampling,(2)to ensure that the process for collecting andanalyzing passive soil gas samples is practical and reasonable,and(3)to provide standard guidance for passive soil gassampling performed in support of source identification,spatialvariability/extentdeterminations,siteassessment,sitemonitoring,and vapor intrusion investigations.1.3 This practice does not address requirements of anyfederal,state,or local regulations or guidance or both withrespect to soil gas sampling.Users are cautioned that federal,state,and local guidance may impose specific requirementsthat differ from those of this practice.1.4 UnitsThe values stated in SI units are to be regardedas standard.No other units of measurement are included in thisstandard.1.5 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.1.6 This practice offers a set of instructions for performingone or more specific operations.This document cannot replaceeducation or experience and should be used in conjunctionwith professional judgment.Not all aspects of this practice maybe applicable in all circumstances.This ASTM standard is notintended to represent or replace the standard of care by whichthe adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projects many unique aspects.The word“Standard”in thetitle means only that the document has been approved throughthe ASTM consensus process.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:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD1356 Terminology Relating to Sampling and Analysis ofAtmospheresD2216 Test Methods for Laboratory Determination of Water(Moisture)Content of Soil and Rock by MassD2487 Practice for Classification of Soils for EngineeringPurposes(Unified Soil Classification System)D3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4597 Practice for Sampling Workplace Atmospheres toCollect Gases or Vapors with Solid Sorbent DiffusiveSamplersD5088 Practice for Decontamination of Field EquipmentUsed at Waste SitesD5314 Guide for Soil Gas Monitoring in the Vadose Zone(Withdrawn 2015)3D5792 Practice for Generation of Environmental Data Re-lated to Waste Management Activities:Development ofData Quality Objectives1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.21 on Groundwater andVadose Zone Investigations.Current edition approved June 1,2017.Published July 2017.Originally approvedin 2011.Last previous edition approved in 2016 as D775811(2016).DOI:10.1520/D7758-17.2For 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.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 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 D6196 Practice for Choosing Sorbents,Sampling Param-eters and Thermal Desorption Analytica