ASTM_D_7825_-_12.pdf

Designation:D782512Standard Guide forGenerating a Process Stream Property Value through theApplication of a Process Stream Analyzer1This standard is issued under the fixed designation D7825;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 indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers and provides a workflow overview ofthe necessary steps related to generating a Process StreamProperty Value obtained from the application of a processstream analyzer.1.2 Generating a Process Stream Property Value from theapplication of a process stream analyzer requires the use ofseveral ASTM standards.These standards describe proceduresto collect a representative sample,establish and validate therelationship to the primary test method,and calculate aproperty value with an expected uncertainty.Each standardbuilds or prepares data,or both,to be used in another standard.The workflow process culminates to produce a process streamanalyzer result that represents a user defined batch of product.The sequence in which the standards are to be utilized isdefined in this guide.1.3 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 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 ProcessStream Analyzer SystemsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD6122 Practice for Validation of the Performance of Multi-variate Online,At-Line,and Laboratory Infrared Spectro-photometer Based Analyzer SystemsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD6624 Practice for Determining a Flow-Proportioned Aver-age Property Value(FPAPV)for a Collected Batch ofProcess Stream Material Using Stream Analyzer DataD6708 Practice for Statistical Assessment and Improvementof Expected Agreement Between Two Test Methods thatPurport to Measure the Same Property of a MaterialD7235 Guide for Establishing a Linear Correlation Relation-ship Between Analyzer and Primary Test Method ResultsUsing Relevant ASTM Standard PracticesD7278 Guide for Prediction ofAnalyzer Sample System LagTimesD7453 Practice for Sampling of Petroleum Products forAnalysis by Process Stream Analyzers and for ProcessStream Analyzer System ValidationD7808 Practice For Determining the Site Precision of aProcess Stream Analyzer on Process Stream MaterialE1655 Practices for Infrared Multivariate QuantitativeAnalysisE2617 Practice for Validation of Empirically Derived Mul-tivariate Calibrations3.Terminology3.1 DefinitionsPlease refer to the individually citedASTM standards for definitions.3.2 Acronyms:3.2.1 FPAPV(s)Flow Proportional Average Property Val-ue(s)3.2.2 MLRMultilinear Regression3.2.3 PCRPrincipal Components Regression3.2.4 PLSPartial Least Squares3.2.5 PSPV(s)Process Stream Property Value(s)3.2.6 PTMPrimary Test Method3.2.7 PTMR(s)Primary Test Method Result(s)3.2.8 PPTMR(s)Predicted Primary Test Method Result(s)3.2.9 QCQuality Control3.2.10 UAR(s)Uncorrected Analyzer Result(s)1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.25 on Performance Assessment and Validation of ProcessStream Analyzer Systems.Current edition approved Nov.1,2012.Published February 2013.DOI:10.1520/D7825-12.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Significance and Use4.1 The standards employed in the Process StreamAnalyzerPSPV Generation Flow Diagram each have a specific deliver-able that when combined into a single system produces a PSPVenabling the representation of product by process streamanalyzer.4.2 The description of each standard in the process providesthe user with an overview of the application of the standard inthe process for developing a PSPV.5.Flow Diagram and Work Process5.1 Aflow chart showing the process for generating a PSPVis shown in Fig.1.5.2 The various standards shown in the flow chart areapplied in sequence,building on the results of the previousstandards.The end result is a PSPV which is expected to agreewith a PTMR for the same material to within the user-specifiedrequirements.FIG.1 Process Stream Analyzer PSPV Generation Flow DiagramD7825 122 6.Supporting Practices6.1 W