ASTM_D_8164_-_21.pdf

Designation:D816421Standard Guide forDigital Contact Thermometers for Petroleum Products,Liquid Fuels,and Lubricant Testing1This standard is issued under the fixed designation D8164;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 The intent of this guide is to suggest an initial configu-ration and provide guidance when establishing the appropriatecriteria needed for a DCT to correctly measure the temperaturein a laboratory test method for products within the scope of thiscommittee.This guide includes examples of the approximatedigital contact thermometer(DCT)criteria that was foundsuitable for measuring temperature in the test methods utilizedby Committee D02.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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:2D97 Test Method for Pour Point of Petroleum ProductsD445 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 StandardsD2386 Test Method for Freezing Point of Aviation FuelsD2500 Test Method for Cloud Point of Petroleum Productsand Liquid FuelsD2532 Test Method for Viscosity and Viscosity ChangeAfter Standing at Low Temperature of Aircraft TurbineLubricantsD2983 Test Method for Low-Temperature Viscosity of Au-tomatic Transmission Fluids,Hydraulic Fluids,and Lubri-cants using a Rotational ViscometerD3829 Test Method for Predicting the Borderline PumpingTemperature of Engine OilD4539 Test Method for Filterability of Diesel Fuels byLow-Temperature Flow Test(LTFT)D4684 Test Method for Determination of Yield Stress andApparent Viscosity of Engine Oils at Low TemperatureD5481 Test Method for Measuring Apparent Viscosity atHigh-Temperature and High-Shear Rate by Multicell Cap-illary ViscometerD5853 Test Method for Pour Point of Crude OilsD6371 Test Method for Cold Filter Plugging Point of Dieseland Heating FuelsD6821 Test Method for Low Temperature Viscosity of DriveLine Lubricants in a Constant Shear Stress ViscometerD6896 Test Method for Determination of Yield Stress andApparent Viscosity of Used Engine Oils at Low Tempera-tureD7279 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids by Automated Houillon ViscometerD7962 Practice for Determination of Minimum ImmersionDepth and Assessment of Temperature Sensor Measure-ment DriftD8210 Test Method for Automatic Determination of Low-Temperature Viscosity of Automatic Transmission Fluids,Hydraulic Fluids,and Lubricants Using a RotationalViscometerD8278 Specification for Digital Contact Thermometers forTest Methods Measuring Flow Properties of Fuels andLubricantsE1 Specification for ASTM Liquid-in-Glass ThermometersE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE563 Practice for Preparation and Use of an Ice-Point Bathas a Reference Temperature1This guide is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and is the direct responsibility of Subcom-mittee D02.91 on Coordinating Subcommittee on Thermometry.Current edition approved April 1,2021.Published April 2021.Last previousedition approved in 2019 as D8164 19.DOI:10.1520/D8164-21.2For 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.*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.1E644 Test Methods for Testing Industrial Resistance Ther-mometersE1750 Guide for Use of Water Triple Point CellsE2251 Specification for Liquid-