1、Designation:E115414Standard Specification forPiston or Plunger Operated Volumetric Apparatus1This standard is issued under the fixed designation E1154;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、 in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers requirements,operatingconditions,and test methods for piston or plunger operatedvolumetric apparatus(POVA).1.2 This spe
3、cification includes specifications applicable forall types of POVA or those given by the manufacturer.Thefollowing precautionary caveat pertains only to the test methodportion,Section 13,of this specification:This standard doesnot purport to address all of the safety concerns,if any,associated with
4、its use.It is the responsibility of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2.Referenced Documents2.1 ASTM Standards:E617 Specification for Laboratory Weights and PrecisionMass StandardsE898 Te
5、st Method of Testing Top-Loading,Direct-ReadingLaboratory Scales and Balances2.2 ISO Documents:2ISO 3534 StatisticsVocabulary and SymbolsISO 653 Long Solid-Stem Thermometers for Precision UseISO 655 Long Enclosed-Scale Thermometers for PrecisionUseISO 4787 Laboratory GlasswareVolumetric GlasswareMet
6、hods for Testing and Use2.3 Other Documents3OIML R 111-1 Weights of classes E1,E2,F1,F2,M1,M12,M2,M23and M3:Part 1:Metrological and technicalrequirements3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 accuracy4the accuracy of an instrument is thecloseness of agreement between t
7、he nominal volume and themean volume,obtained by applying the test procedure speci-fied in Section 13 of this specification.It is quantified by theinaccuracy of the mean.3.1.2 dead volumethe dead volume is that part of the totalliquid volume,held in the operational part of the device,whichis not del
8、ivered.3.1.2.1 DiscussionThe dead volume should not be con-fused with the dead space of an air displacement instrument.3.1.3 disposablethose parts of an instrument that areintended to be used once only and then discarded.Disposableparts are generally intended for use in applications wheresample carr
9、yover is intolerable.3.1.4 maximum errorthe maximum difference betweenthe nominal volume and any single individual volume obtainedby applying the test procedure specified in Section 13 of thisSpecification.3.1.5 maximum expectable errorwith more than 95%probability,the maximum expectable error is ca
10、lculated asfollows:61ET112s!(1)where:ET=inaccuracy of the mean,ands=standard deviation from the repeatability test in Section13.3.1.6 nominal volume(s)the stated volume(s)for whichperformance is specified.3.1.7 piston or plunger operated volumetric apparatus(POVA)the volume of liquid to be measured
11、with POVA isdefined by one or more strokes of one or more pistons orplungers.POVA may be operated manually or mechanically(for example,electrically,pneumatically or by hydrostaticpressure).3.1.7.1 DiscussionIn the following text the word pistonmeans piston or plunger.1This specification is under the
12、 jurisdiction of ASTM Committee E41 onLaboratory Apparatus and is the direct responsibility of Subcommittee E41.06 onWeighing Devices.Current edition approved Dec.1,2014.Published January 2015.Originallyapproved in 1987.Last previous edition approved in 2008 as E1154-89(2008).DOI:10.1520/E1154-14.2A
13、vailable from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.3Available from International Organization of Legal Metrology,11 rue Turgot,75009 Paris,France.www.oilm.org/en/4These definitions apply only in the cases where the distributions are
14、 Gaussian.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.8 precision4the closeness of agreement between theindividual volumes obtained by applying the test procedurespecified in this specification.It is quantified by the impreci-sion
15、.3.1.8.1 DiscussionThe test procedure specified gives onlya measure of the repeatability(see ISO 3534)under controlledconditions.3.1.9 reference temperaturethe temperature at which theinstrument is designed to deliver its nominal volume(s).3.1.9.1 DiscussionAt that temperature the closest agree-ment
16、 between manufacturers performance claims and testresults may be expected.3.1.10 reference temperature rangethat temperature rangefor which the tolerances for accuracy are specified.3.1.11 reusablethose parts of an instrument that are meantto be used more than once.As the reusability of some parts canrarely be quantified,any institution or individual who reuses areusable part must see to its safety and effectiveness.Reusableparts are generally intended for use in applications wheresample carryov
