ASTM_D_6519_-_15.pdf

Designation:D651915Standard Practice forSampling of Soil Using the Hydraulically OperatedStationary Piston Sampler1This standard is issued under the fixed designation D6519;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 This practice covers a procedure for sampling ofcohesive,organic,or fine-grained soils,or combination thereof,using a thin-walled metal tube that is inserted into the soilformation by means of a hydraulically operated piston.It isused to collect relatively intact soil samples suitable forlaboratory tests to determine structural and chemical propertiesfor geotechnical and environmental site characterizations.1.1.1 Guidance on preservation and transport of samples inaccordance with Practice D4220 may apply.Samples forclassification may be preserved using procedures similar toClass A.In most cases,a thin-walled tube sample can beconsidered as Class B,C,or D.Refer to Guide D6169 for useof the hydraulically operated stationary piston soil sampler forenvironmental site characterization.This sampling method isoften used in conjunction with rotary drilling methods such asfluid rotary;Guide D5783;and hollow stem augers,PracticeD6151.Sampling data should be reported in the field log inaccordance with Guide D5434.1.2 The hydraulically operated stationary piston sampler islimited to soils and unconsolidated materials that can bepenetrated with the available hydraulic pressure that can beapplied without exceeding the structural strength of the thin-walled tube.This standard addresses typical hydraulic pistonsamplers used on land or shallow water in drill holes.Thestandard does not address specialized offshore samplers fordeep marine applications that may or may not be hydraulicallyoperated.This standard does not address operation of othertypes of mechanically advanced piston samplers.For informa-tion on other soil samplers,refer to Guide D6169.1.3 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026,unless superseded by this standard.1.3.1 The values stated in either inch-pound units or SI unitspresented in brackets are to be regarded separately asstandard.The values stated in each system may not be exactequivalents;therefore,each system shall be used independentlyof the other.Combining values from the two systems mayresult in non-conformance with the standard.1.4 This practice does not purport to address all the safetyconcerns,if any,associated with its use and may involve use ofhazardous materials,equipment,and operations.It is theresponsibility of the user to establish and adopt appropriatesafety and health practices.Also,the user must comply withprevalent regulatory codes,such as OSHA(OccupationalHealth and Safety Administration)guidelines,while using thispractice.For good safety practice,consult applicable OSHAregulations and other safety guides on drilling.21.5 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 judgement.Not all aspects of this practicemay be applicable in all circumstances.This ASTM standard isnot intended to represent or replace the standard of care bywhich the adequacy of a given professional service must bejudged,nor should this document be applied without consid-eration of a projects many unique aspects.The word“Stan-dard”in the title means only that the document has beenapproved through the ASTM consensus process.This practicedoes not purport to comprehensively address all of the methodsand the issues associated with sampling of soil.Users shouldseek qualified professionals for decisions as to the properequipment and methods that would be most successful for theirsite exploration.Other methods may be available for drillingand sampling of soil,and qualified professionals should haveflexibility to exercise judgment as to possible alternatives notcovered in this practice.The practice is current at the time ofissue,but new alternative methods may become available priorto revisions,therefore,users should consult with manufacturersor producers prior to specifying program requirements.1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.02 on Sampling andRelated Field Testing for Soil EvaluationsCurrent edition approved July 1,2015.Published July 2015.Originally approvedin 2000.Last previous edition approved in 2008 as D6519 08.DOI:10.1520/D6519-15.2Drilling Safety Guide,National DrillingAssn.,3008 MillwoodAve.,Columbia,SC 29205.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor