ASTM_D_127_-_19.pdf

Designation:D12719Designation:133/79(87)Standard Test Method forDrop Melting Point of Petroleum Wax,Including Petrolatum1This standard is issued under the fixed designation D127;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers the determination of the dropmelting point of petroleum wax.It is used primarily forpetrolatums and other microcrystalline wax.NOTE1Additional methods used for petroleum waxes are TestMethod D87 and Test Method D938.Results obtained may differ,depending on the method used.For pharmaceutical petrolatum,TestMethod D127 usually is used.1.1.1 Test Method AThe dropping point of wax is deter-mined with a mercury in glass thermometer,as stated belowin6.3.(WarningMercury has been designated by manyregulatory agencies as a hazardous substance that can causeserious medical issues.Mercury,or its vapor,has been dem-onstrated to be hazardous to health and corrosive to materials.Use Caution when handling mercury and mercury-containingproducts.See the applicable product Safety Data Sheet(SDS)for additional information.The potential exists that sellingmercury or mercury-containing products,or both,is prohibitedby local or national law.Users must determine legality of salesin their location.)1.1.2 Test Method BThe dropping point of wax deter-mined in a dropping point cup in an instrument which detectsthe drop and measures the temperature electronically,with aplatinum thermometer instead of with mercury.Mercury hasbeen recognized as a poison and a health hazard.Removingmercury from laboratories is a way of making the measuringprocess more inherently safe.The instrumental dropping pointmethod has shown to produce results that are close to thosedetermined by the original Test Method D127,Method A.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.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:2D87 Test Method for Melting Point of Petroleum Wax(Cooling Curve)D938 Test Method for Congealing Point of PetroleumWaxes,Including PetrolatumD3104 Test Method for Softening Point of Pitches(MettlerSoftening Point Method)D3954 Test Method for Dropping Point of WaxesE1 Specification for ASTM Liquid-in-Glass ThermometersE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodTEST METHOD A3.Terminology3.1 Definitions:1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.10.0A on Physical/Chemical Properties.Current edition approved Nov.1,2019.Published February 2020.Originallyapproved in 1922.Last previous edition approved in 2015 as D127 08(2015).DOI:10.1520/D0127-19.This test method was adopted as a jointASTM-IPstandard in 1964.In the IP,thistest method is under the jurisdiction of Standardization Committee.In 1963,the title,scope,and definition were changed to define the determinationof“drop melting point.”Sections on procedure,report,and precision were revised,and a new section on significance was added.In 1964,minor editorial changes and additions to this method were made for itspublication as a joint ASTM-IP standard.Only Method A of this test method is equivalent to IP 133/79(87).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 Barrier