ASTM_D_2962_-_10.pdf

Designation:D296210Standard Practice forCalculating Volume-Temperature Correction For Coal-TarPitches1This standard is issued under the fixed designation D2962;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.Scope1.1 This practice covers calculation of the amount of expan-sion or contraction of a volume of liquid coal-tar pitch due toa change of temperature.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D70 Test Method for Density of Semi-Solid BituminousMaterials(Pycnometer Method)D71 Test Method for Relative Density of Solid Pitch andAsphalt(Displacement Method)3.Summary of Practice3.1 Different pitches expand or contract at different rateswhich vary in relation to the relative density of the material.The corresponding values are listed in Table 1.4.Significance and Use4.1 Coal tar pitch is shipped or stored,or both,at varioustemperatures,consequently a means is required to correctvolume to a specified temperature.5.Procedure5.1 Determine the relative density of the pitch at 60/60F(15.6/15.6C)in accordance with Test Methods D70 or D71,whichever is most suitable.5.2 Find the coefficient of expansion per degree Celsius orFahrenheit for the particular material from Table 1.5.3 Multiply the coefficient by the number of degreesbetween the standard temperature and the actual temperature ofthe material as measured.5.4 To the product of 5.3 add 1.000.The result is expansionfactor A.5.5 If the temperature of the material as measured is abovethe standard temperature,divide the measured volume byfactor A(5.4).If the temperature of the material as measured isbelow the standard temperature,multiply the measured volumeby factor A(5.4).5.6 ExampleA tank of pitch contains 95 000 gal at 350F(177C).Calculate the volume at 60F(15.6C)as follows:The relative density 60/60F(15.6/15.6C)according to TestMethod D70 is 1.28.From Table 1 the coefficient is 280 106per F.The temperature difference of 350 60=290.290 280 106=0.0812A=1.0812The corrected volume is 95,000/1.0812=87 865 gal at 60F(15.6C).6.Keywords6.1 coal tar pitch;correction factor;pitch;relative density;volume-temperature correction1This practice is under the jurisdiction of ASTM Committee D02 on PetroleumProducts and Lubricants and is the direct responsibility of Subcommittee D02.02.07on Temperature Determination(API MPMS Chapter 7.0).Current edition approved Oct.1,2010.Published November 2010.Originallyapproved in 1971.Last previous edition approved in 2007 as D296297(2007).DOI:10.1520/D2962-10.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard.Users of this standard are expressly advised that determination of the validity of any such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,which you may attend.If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted by ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Individual reprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail);or through the ASTM website(www.astm.org).Permission rights to photocopy the standard may also be secured from the ASTM website(www.astm.org/COPYRIGHT/).TABLE 1 Expansion Coefficient Ve