1、Designation:D783120Standard Practice forSampling of Tanks by Field Personnel1This standard is issued under the fixed designation D7831;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
2、indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers information for field personnel tofollow in order to collect samples from tanks.1.2 The purpose of this practice is to help field personnel
3、inplanning and obtaining samples from vertical and horizontaltanks,open-topped rectangular/square tanks,railroad and trucktankers,vacuum trucks,and tanks with multiple compartmentsusing equipment and techniques that will assist in meeting thesampling objectives.1.3 The practice is applicable to haza
4、rdous materials,products,raw materials,by-product,or waste.1.4 Sampling from circulating pump discharge valves andtank transfer lines is not addressed in this practice.1.5 UnitsThe values stated in inch-pound units are to beregarded as the standard.The values given in parentheses aremathematical con
5、versions to SI units that are provided forinformation only and are not considered standard.1.6 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 environme
6、ntal practices and deter-mine the applicability of regulatory limitations prior to use.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,G
7、uides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4687 Guide for General Planning of Waste SamplingD4840 Guide for Sample Chain-of-Custody ProceduresD5088 Practice for Decontamination of Field Equipme
8、ntUsed at Waste SitesD5283 Practice for Generation of Environmental Data Re-lated to Waste Management Activities:Quality Assuranceand Quality Control Planning and ImplementationD5495 Practice for Sampling With a Composite LiquidWaste Sampler(COLIWASA)D5681 Terminology for Waste and Waste ManagementD
9、5792 Practice for Generation of Environmental Data Re-lated to Waste Management Activities:Development ofData Quality ObjectivesD6232 Guide for Selection of Sampling Equipment forWaste and Contaminated Media Data CollectionActivitiesD6759 Practice for Sampling Liquids Using Grab and Dis-crete Depth
10、SamplersD7353 Practice for Sampling of Liquids in Waste Manage-ment Activities Using a Peristaltic Pump3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this practice,refer toTerminology D5681.3.1.2 tank,nstationary device designed to contain anaccumulated material that is construc
11、ted of non-earthen mate-rials that provide structural support.3.1.2.1 DiscussionIt may be appropriate to consider vari-ous containers(portable devices),such as roll offs,tankertrucks,and rail tank cars,as tanks for sampling purposes,evenif they meet a regulatory definition of a container.4.Summary o
12、f Practice4.1 This practice addresses sampling planning,includingpre-sampling and site inspections.4.2 This practice lists some of the factors that should beconsidered when collecting tank content samples.4.3 Sampling procedures for the equipment needed tosample vertical and horizontal tanks,open-to
13、pped rectangular/square tanks,railroad and truck tankers,vacuum trucks,andtanks with multiple compartments are presented.4.4 Sampling procedures to sample single and stratifiedmaterials and wastes are addressed.1This practice is under the jurisdiction of ASTM Committee D34 on WasteManagement and is
14、the direct responsibility of Subcommittee D34.01.02 onSampling Techniques.Current edition approved Dec.1,2020.Published January 2021.Originallyapproved in 2013.Last previous edition approved in 2013 as D7831 13.DOI:10.1520/D7831-20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,o
15、rcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standar
16、d 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.14.5 It is not intended to cover all equipment that might bepurchased or custom made,nor does this practice address everysampling situation that is encountered in the field.5.Significance and Use5.1 This practice