1、Designation:D2978151Standard Test Methods forVolume of Processed Peat Materials1This standard is issued under the fixed designation D2978;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.1NOTEEditorially updated units of measurement statement in April 2018.1.Scope*1.1 These test methods cover the measurement of thevolume of loose and baled processed peat
3、 expressed as cubicfeet and is used as a quality control measurement to determineif the package contains the labeled amount of material.Theresults of these test methods are highly dependent on theexperience of the personnel running the procedure.1.2 There are two test methods,Method A for Loose Peat
4、and Method B for Baled Peat.Method A is used when thematerial is uncompacted and Method B is used when thematerial is compacted.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses after inch-poundunits are provided for information only and are not
5、consideredstandard.Except,that the sieve designations are typicallyidentified using the“alternative”system in accordance withPractice E11,such as 3-in.and No.200,instead of the“standard”of 75-mm and 75-m,respectively.1.4 All observed and calculated values shall conform to theguidelines for significa
6、nt digits and rounding established inPractice D6026.1.4.1 The procedures used to specify how data are collected/recorded or calculated in this standard are regarded as theindustry standard.In addition,they are representative of thesignificant digits that generally should be retained.The proce-dures
7、used do not consider material variation,purpose forobtaining the data,special purpose studies,or any consider-ations for the users objectives;and it is common practice toincrease or reduce significant digits of reported data to becommensurate with these considerations.It is beyond the scopeof this s
8、tandard to consider significant digits used in analysismethods for engineering design.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
9、practices and deter-mine the applicability of regulatory limitations prior to use.1.6 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
10、 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 ContainedFluidsD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil a
11、nd Rock asUsed in Engineering Design and ConstructionD6026 Practice for Using Significant Digits in GeotechnicalDataE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Terminology3.1 Definitions:3.1.1 For definitions of common technical terms in thisstandard,refer to Terminology D653.3
12、.2 Definitions of Terms Specific to This Standard:3.2.1 loose peat,nuncompacted peat in air-dried,granu-lated or crumb form.4.Summary of Test Method4.1 These test methods consist of either measuring the outerdimensions of compacted peat(Method B)or dividing theparticles of uncompacted peat(Method A)
13、by passing themthrough a12-in.(12.5-mm)sieve and allowing them to fall intoa volume-measuring container.1This test method is under the jurisdiction ofASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.22 on Media for PlantGrowth.Current edition approved May 1,201
14、5.Published June 2015.Originallyapproved in 1971.Last previous edition approved in 2010 as D2978 03(2010).DOI:10.1520/D2978-15E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,
15、refer to the standards Document Summary page onthe ASTM website.*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 in
16、ternationally 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 5.Significance and Use5.1 These test methods are used to quantify the volume ofpeats under consideration in commercial transactions to deter-mine if the package contains the labeled quantity.As such,material comes into the test area in an“as sold”
