ASTM_D_7279_-_20.pdf

Designation:D727920Standard Test Method forKinematic Viscosity of Transparent and Opaque Liquids byAutomated Houillon Viscometer1This standard is issued under the fixed designation D7279;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 test method covers the measurement of the kine-matic viscosity of transparent and opaque liquids;such as baseoils,formulated oils,diesel oil,biodiesel,biodiesel blends,residual fuel oils,marine fuels,and used lubricating oils usinga Houillon viscometer in automated mode.1.2 The range of kinematic viscosity capable of beingmeasured by this test method is from 2 mm2/s to 2500 mm2/s(see Fig.1).The range is dependent on the tube constantutilized.The temperature range that the apparatus is capable ofachieving is between 20 C and 150 C,inclusive.However,the precision has only been determined for the viscosity range;2 mm2/s to 478 mm2/s at 40 C for base oils,formulated oils,diesel oil,biodiesel,and biodiesel blends;3 mm2/s to106 mm2/s at 100 C for base oils and formulated oils;25 mm2/s to 150 mm2/s at 40 C and 5 mm2/s to 16 mm2/s at100 C for used lubricating oils;25 mm2/s to 2500 mm2/s at50 C and 6 mm2/s to 110 mm2/s at 100 C for residual fuels.As indicated for the materials listed in the precision section.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 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.For specific warning statements,see Section 7.1.5 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:2D445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D2162 Practice for Basic Calibration of Master Viscometersand Viscosity Oil StandardsD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD6300 Practice for Determination of Precision and BiasData for Use in Test Methods for Petroleum Products,Liquid Fuels,and LubricantsD6708 Practice for Statistical Assessment and Improvementof Expected Agreement Between Two Test Methods thatPurport to Measure the Same Property of a MaterialD6792 Practice for Quality Management Systems in Petro-leum Products,Liquid Fuels,and Lubricants TestingLaboratoriesD7962 Practice for Determination of Minimum ImmersionDepth and Assessment of Temperature Sensor Measure-ment DriftD8278 Specification for Digital Contact Thermometers forTest Methods Measuring Flow Properties of Fuels andLubricantsE563 Practice for Preparation and Use of an Ice-Point Bathas a Reference TemperatureE1750 Guide for Use of Water Triple Point Cells2.2 ISO Standards:ISO 5725 Accuracy(Trueness and Precision)of Measure-ment Methods and Results31This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.07 on Flow Properties.Current edition approved Nov.1,2020.Published November 2020.Originallyapproved in 2006.Last previous edition approved in 2018 as D7279 181.DOI:10.1520/D7279-20.2For 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 American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*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.ISO/EC 17025 General Requirements for the Competence ofTesting and Calibration Laboratories32.3 NIST Standard:NIST Technical No