1、Designation:D545121Standard Practice forSampling Using a Trier Sampler1This standard is issued under the fixed designation D5451;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 indica
2、tes the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers sampling using a trier.A trierresembles an elongated scoop as shown in Fig.1.The trier isused to collect samples of granular or powdered materials
3、 thatare moist or sticky and have a particle diameter less than onehalf the diameter of the trier.1.2 The trier can be used as a vertical coring device onlywhen it is certain that a relatively complete and cylindricalsample can be extracted.1.3 UnitsThe values stated in SI units are to be regardedas
4、 standard.No other units of measurement are included in thisstandard.All observed and calculated values shall conform tothe guidelines for significant digits and rounding established inPractice D6026.Reporting of test results in units other than SIshall not be regarded as nonconformance with this st
5、andard.1.4 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 u
6、se.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
7、to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4687 Guide for General Planning of Waste SamplingD5088 Practice for Decontamination of Field EquipmentUsed at Waste SitesD5283 Practice for Generation of Environmental Data Re-lated to Waste Management Activities:Quality Assuranceand
8、Quality Control Planning and ImplementationD5681 Terminology for Waste and Waste ManagementD6026 Practice for Using Significant Digits in GeotechnicalData3.Terminology3.1 DefinitionsFor definitions of terms used in thisstandard,see Terminology D5681.4.Summary of Practice4.1 As a coring device,the tr
9、ier is pushed into the materialto be sampled and is turned to cut the core.The core is thenremoved from the hole.5.Significance and Use5.1 This practice is applicable to sampling soils and similarfine-grained cohesive materials.This practice is to be used bypersonnel who are to acquire the samples.5
10、.2 This practice should be used in conjunction with GuideD4687,which covers sampling plans,safety,quality assurance,preservation,decontamination,labeling,and chain-of-custodyprocedures;Practice D5088,which covers the decontaminationof field equipment used at waste sites;and Practice D5283,which cove
11、rs project specifications and practices for environ-mental field operations.6.Sampling Equipment6.1 The trier should be made from materials that arecompatible with the substances being sampled and with thetests or analyses to be performed.Either stainless steel orpolytetrafluoroethylene-coated metal
12、 will be suitable for mostsituations(see Fig.1).7.Sample Containers7.1 Plastic,glass,or other nonreactive containers should beused.Refer to Guide D4687 for further information on con-tainers.8.Procedure8.1 Record appropriate information and observations on thesample location.Refer to Guide D4687 for
13、 further informationon what to record.1This practice is under the jurisdiction of ASTM Committee D34 on WasteManagement and is the direct responsibility of Subcommittee D34.01.03 onSampling Equipment.Current edition approved May 1,2021.Published May 2021.Originallyapproved in 1993.Last previous edit
14、ion approved in 2016 as D5451 93(2016).DOI:10.1520/D5451-21.2For 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 standards Document Summary page onthe ASTM website.Copyri
15、ght 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 St
16、andards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.18.2 If sampling soils,remove surface vegetation or debris,or both,from the area of sample extraction.8.3 For core sampling,proceed as follows:8.3.1 Insert the trier approximately perpendicular to thesurface of the material and rotate(one or two times)to cut acore.8.3.2 Pull the core out of the hole slowly.Do not allowadditional overburden material to become part of the sample.Insp
