ASTM_D_1550_-_18.pdf

Designation:D155018StandardASTM Butadiene Measurement Tables1This standard is issued under the fixed designation D1550;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 ASTM Butadiene Measurement Tables are for usein the calculation of quantities of butadiene.The accompany-ing Tables 1-3 cover the normal operating ranges for thereduction of observed relative density and volume to 15.556/15.556 C(60/60 F)and for the calculation of weight-volumerelationships of butadiene.1.2 These tables are applicable to both butadiene andbutadiene concentrates(minimum of 60%butadiene).NOTE1These tables replace the existing tables in the NationalInstitute of Standards and Technology Letter Circulars LC-736 andLC-757 and the Rubber Reserve Corp.,Butadiene Laboratory Manual.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:2D1250 Guide for Use of the Petroleum Measurement Tables2.2 API Standards:3MPMS Chapter 11.4.1 Manual of Petroleum MeasurementStandards Chapter 11Physical Properties Data Section4Properties of Reference Materials Part 1Density ofWater and Water Volumetric Correction Factors for WaterCalibration of Volumetric ProversMPMS Chapter 11.5 Manual of Petroleum MeasurementStandards Chapter 11Physical Properties Data Section5Density/Weight/VolumeIntraconversionPart1Conversions of API Gravity at 60 F3.Significance and Use3.1 Accurate knowledge of the weight and volume ofbutadiene is necessary for the orderly manufacture,storage,transfer,and sale of the material.These tables are suitable foruse in these and similar aspects of butadiene commerce.1This standard is under the jurisdiction of ASTM Committee D02 on PetroleumProducts,Liquid Fuels,and Lubricants and the API Committee on PetroleumMeasurement,and is the direct responsibility of Subcommittee D02.02/COMQ thejoint ASTM-API Committee on Hydrocarbon Measurement for Custody Transfer(Joint ASTM-API).This standard has been approved by the sponsoring committeesand accepted by the Cooperating Societies in accordance with established proce-dures.Current edition approved Oct.1,2018.Published December 2018.Originallyapproved in 1958.Last previous edition approved in 2015 as D1550 94(2015).DOI:10.1520/D1550-18.2For 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 Petroleum Institute(API),1220 L.St.,NW,Washington,DC 20005-4070,http:/www.api.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.1 TABLE 1 REDUCTION OF OBSERVED RELATIVE DENSITY TO RELATIVE DENSITY 15.556/15.556 C(60/60 F)This table gives values of relative density 15.556/15.556 C(60/60 F)corresponding to specific gravities observed with a glass hydrometer at temperatures otherthan 60 F.The expression“Observed Relative Density”appears in this table because it is the term most generally used in industry.For specific gravities determinedby hydrometer,a more exact expression would be“hydrometer indication at the observed temperature.”This hydrometer indication differs slightly from the truespecific gravity at the observed temperature owing to the expansion or contraction of the glass hydrometer when its temperature differs from its calibrationtemperature of 60 F.It is generally impracticable to determine a relative density at exactly 15.556 C(60 F)although it is at this temperature only that strictly correct results areobtained with a standard glass hydrometer.In converting an observed specific gravity at the observed temperature t F(hydrometer indication of relative densityt/60 F)to the corresponding 60/60 F value,two corrections are poss