1、Designation:D745309(Reapproved 2015)Standard Practice forSampling of Petroleum Products for Analysis by ProcessStream Analyzers and for Process Stream Analyzer SystemValidation1This standard is issued under the fixed designation D7453;the number immediately following the designation indicates the ye
2、ar 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.INTRODUCTIONThe primary focus of sampling petroleum product is the timel
3、y presentation of the sample for(1)analysis by online analyzers,(2)validation of an analyzer system and(3)collecting a compositesample for batch physical property determination.Sediment,free water,rust,and other contaminantsfound in the sample may be removed in the sample conditioning system to prot
4、ect the hardware andanalytical systems.If a sample is being collected for later analysis,the sample receiver must not alteror degrade the physical make up of the sample in any way.If a sample is being feed to an analyzeror sampled for latter determination of water or particulate contamination then f
5、iltering is not an option.1.Scope1.1 This practice covers the performance requirements forsample systems employed to deliver process stream samples(1)to analyzer system for analyses or(2)for analyzervalidation or(3)for composite sample systems.It also outlinesthe selection and operation of line or b
6、atch sampling equipmentintended for analyzer flow proportioned average property valuesystem validation.Sample handling,mixing,and conditioningprocedures are required to ensure that a representative sampleof the liquid petroleum product is collected from the samplingsource.1.2 Applicable FluidsThis p
7、ractice is applicable to singleliquid phase petroleum products whose vapor pressure atsampling and sample storage conditions is less than or equal to110 kPa(16.0 psi),and,with a D86 final boiling point less thanor equal to 400 C(752 F).1.2.1 Specialized sample handling may be necessary tomaintain sa
8、mple integrity of more volatile materials at hightemperatures or extended residence time in the receiver.Suchhandling requirements are not within the scope of this practice.Users should consult the analytical methods to be performed onthe sample for special sample storage or conditioning require-men
9、ts.1.3 Some or all of the processes outlined in this practicemay be applicable to other liquids.Applying this practice toother liquids will require the consideration of additionalmethods and practices.It is the responsibility of the user of thisstandard to identify any and all applicable safety and
10、samplingconsiderations and establish appropriate procedures to handlethese additional considerations.1.4 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.5 This standard does not purport to address all of thesafety concerns,if
11、any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D3764 Practice for Validation of the Performance of
12、 ProcessStream Analyzer SystemsD6122 Practice for Validation of the Performance of Multi-variate Online,At-Line,and Laboratory Infrared Spectro-photometer Based Analyzer SystemsD6624 Practice for Determining a Flow-Proportioned Aver-age Property Value(FPAPV)for a Collected Batch ofProcess Stream Mat
13、erial Using Stream Analyzer Data1This practice is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.25 on Performance Assessment and Validation of Process StreamAnalyzer Systems.Current edition approved
14、 April 1,2015.Published May 2015.Originallyapproved in 2009.Last previous edition approved in 2009 as D7453 09.DOI:10.1520/D7453-09R15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume informa
15、tion,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 States1 D7278 Guide for Prediction ofAnalyzer Sample System LagTimes3.Terminology3.1 Definitions:3.1.1 analyzer unit response tim
16、e,ntime interval betweenthe introduction of a step change in property characteristic atthe inlet of the analyzer unit and when the analyzer outputindicates a value corresponding to 99.5%of the subsequentchange in analyzer results.3.1.2 automatic sampler,ndevice used to repetitivelyextract an grab and collect a representative sample of a batchor process stream.3.1.3 automatic sampling system,nsystem consisting of asample probe,sample fast cycle loop,sample supply linestream conditioning,an automa
