ASTM_D_97_-_15.pdf

Designation:D9715Designation:15/95Standard Test Method forPour Point of Petroleum Products1This standard is issued under the fixed designation D97;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers and is intended for use on anypetroleum product.2A procedure suitable for black specimens,cylinder stock,and nondistillate fuel oil is described in 8.8.Thecloud point procedure formerly part of this test method nowappears as Test Method D2500.1.2 Currently there is no ASTM test method for automatedTest Method D97 pour point measurements.1.3 Several ASTM test methods offering alternative proce-dures for determining pour points using automatic apparatusare available.None of them share the same designation numberas Test Method D97.When an automatic instrument is used,the ASTM test method designation number specific to thetechnique shall be reported with the results.A procedure fortesting the pour point of crude oils is described in Test MethodD5853.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 WARNINGMercury has been designated by manyregulatory agencies as a hazardous material that can causecentral nervous system,kidney and liver damage.Mercury,orits vapor,may be hazardous to health and corrosive tomaterials.Caution should be taken when handling mercury andmercury containing products.See the applicable product Ma-terial Safety Data Sheet(MSDS)for details and EPAswebsitehttp:/www.epa.gov/mercury/faq.htmfor addi-tional information.Users should be aware that selling mercuryand/or mercury containing products into your state or countrymay be prohibited by law.1.6 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:3D117 Guide for Sampling,Test Methods,and Specificationsfor Electrical Insulating Oils of Petroleum OriginD396 Specification for Fuel OilsD2500 Test Method for Cloud Point of Petroleum ProductsD5853 Test Method for Pour Point of Crude OilsD6300 Practice for Determination of Precision and BiasData for Use in Test Methods for Petroleum Products andLubricantsD7962 Practice for Determination of Minimum ImmersionDepth and Assessment of Temperature Sensor Measure-ment DriftE1 Specification for ASTM Liquid-in-Glass ThermometersE644 Test Methods for Testing Industrial Resistance Ther-mometersE1137 Specification for Industrial Platinum Resistance Ther-mometersE2877 Guide for Digital Contact Thermometers2.2 Energy Institute Standards:4Specifications for IP Standard Thermometers3.Terminology3.1 Definitions:3.1.1 black oil,nlubricant containing asphaltic materials.Black oils are used in heavy-duty equipment applications,suchas mining and quarrying,where extra adhesiveness is desired.1This 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 Oct.1,2015.Published November 2015.Originallyapproved in 1927,replacing D47.Last previous edition approved in 2012 asD97 12.DOI:10.1520/D0097-15.In the IP,this test method is under the jurisdiction of the StandardizationCommittee.This test method was adopted as a joint ASTM-IP Standard in 1965.2Statements defining this test and its significance when applied to electricalinsulating oils of mineral origin will be found in Guide D117.3For 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.4Available from Energy Institute,61 New Cavendish St.,London,W1G 7AR,U.K.,http:/www.energyinst.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 States1 3.1.2 cylinder stock,nlubricant for independently lubri-cated engine cylinders,such as those of steam engines and aircompressors.Cylinder stock are also used for lubrication ofvalves and other elements in the cylinder area.3.1.3 digital contact thermometer(DCT),nan electronicdevice consisting of a digital display and associated tempera-ture sensing probe.3.1.3.1 DiscussionThis device consists of a temperaturesensor connected to a measuring instrument;this instrumentmeasures the temperature-dependent quantity of th