ASTM_D_6809_-_20a.pdf

Designation:D680920aStandard Guide forQuality Control and Quality Assurance Procedures forAromatic Hydrocarbons and Related Materials1This standard is issued under the fixed designation D6809;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.Scope*1.1 This guide contains non-mandatory Quality Assurance/Quality Control(QA/QC)activities that may be referenced instandards maintained by ASTM Committee D16 on AromaticHydrocarbons and Related Materials.1.2 This guide does not purport to address all of the issuesthat may be pertinent to an active QA/QC process.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 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 and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4790 Terminology of Aromatic Hydrocarbons and RelatedChemicalsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ASTM Document:MNL7 Manual on Presentation of Data Control ChartAnalysis,6th Edition,Section 3:Control Charts forIndividuals32.3 Other Documents:Western Electric Company,Inc.Statistical Quality ControlHandbook(1982)4Jurans Quality Control Handbook Fourth Edition(1988)53.Terminology3.1 Definitions:3.1.1 precision,nthe degree of agreement of repeatedmeasurement of the same property,expressed in terms ofdispersion of test results about an arithmetical mean resultobtained by repetitive testing of a homogeneous sample underspecified conditions.The precision of a test method is ex-pressed quantitatively as a standard deviation computed fromthe results of a series of controlled determinations.D47903.1.2 quality assurance,nthe general activity of providingevidence needed to establish confidence that the quality func-tion is being effectively performed;may include qualityplanning,quality control,quality improvement,quality audit,and reliability.Jurans Quality Control Handbook3.1.3 quality control,nthe specific tools,skills,or tech-niques through which the quality function is carried out,can bepart of a control process,for example,product inspection.Jurans Quality Control Handbook4.Summary of Guide4.1 This guide contains non-mandatory information to beconsidered for reference in all ASTM Committee D16 stan-dards on aromatic hydrocarbons and related materials.This1This guide is under the jurisdiction of ASTM Committee D16 on Aromatic,Industrial,Specialty and Related Chemicals and is the direct responsibility ofSubcommittee D16.06 on Statistics and Quality.Current edition approved Oct.1,2020.Published October 2020.Originallyapproved in 2002.Last previous edition approved in 2020 as D6809 20.DOI:10.1520/D6809-20A.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.3Available from ASTM International,100 Barr Harbor Drive,WestConshohocken,PA 19428-2959,www.astm.org.4Available from American Society for Quality(ASQ),600 N.Plankinton Ave.,Milwaukee,WI 53203,http:/www.asq.org.5Available from McGraw-Hill Education,Columbus,OH,43218,http:/.*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 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.1information is provided as a QA/QC system guide for D16standard users who do not have an active QA/QC process intheir laboratory.5.Significance and Use5.1 Quality Control and Quality Assurance practices areimportant for the optimum operation of testing laboratoriesusing D16 methods for aromatic hydrocarbons and relatedmaterials.Quality procedure guidelines,like those described inthis document or other suitably correct QA/QC-relatedreference,can be useful to optimally perform these methods.6.Quality Procedure Guidelines6.1 Statistical ControlTo establish the statistical c