ASTM_D_2083_-_92_1998.pdf

Designation:D 2083 92(Reapproved 1998)Standard Test Method forCalculation of Percent of Primary,Secondary,and TertiaryAmines in Fatty Amines1This standard is issued under the fixed designation D 2083;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(e)indicates an editorial change since the last revision or reapproval.This method was prepared jointly by the American Society for Testing and Materials and the American Oil Chemists Society.1.Scope1.1 This test method covers calculation of the percent ofprimary,secondary,and tertiary amines in the sample fromdeterminations of primary,secondary,and tertiary amine val-ues and percent of non-amine.1.2 This test method is applicable to materials containingonly fatty primary amines,difatty secondary amines,trifattytertiary amines,and nonamines.This method is not applicableto blends such as a mixture of coco primary amine and tallowdifatty secondary amine.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:D 2073 Test Methods for Total,Primary,Secondary,andTertiaryAmine Values of FattyAmines,Amidoamines,andDiamines by Referee Potentiometric Method2D 2074 Test Methods for Total,Primary,Secondary,andTertiary Amine Values of Fatty Amines by AlternativeIndicator Method2D 2082 Test Method for Percent of Non-Amines in FattyNitrogen Compounds23.Procedure3.1 Determine primary,secondary,and tertiary amine valuesin accordance with Test Methods D 2073 or D 2074.3.2 Determine the percent of non-amines in accordance withTest Method D 2082.4.Calculation4.1 Calculate the percent of amines as follows(Note):where:Let X=average molecular weight of the primary amine,PAV=primary amine value of the sample,SAV=secondary amine value of the sample,TAV=tertiary amine values of the sample,andPNA=%non-amine.then:X 5561100 2 PNA!1 17SAV!1 34TAV!PAV 1 2SAV!1 3TAV!(1)andPrimary amine,%5 PAVX!/561(2)Secondary amine,%5 SAV2X 2 17!/561Tertiary amine,%5 TAV3X 2 34!/561NOTE1The equations given in 4.1 are based upon the assumption thatthe alkyl chain lengths in the monofatty,difatty,and trifatty amines are thesame average length.5.Precision and Bias5.1 Precision and bias were not established at the time thistest method was written.An effort is being made to obtain theprecision and,if obtainable,it will be published in futurerevisions.This test method has been in use for many years,andits usefulness has been well established.6.Keywords6.1 amines;fatty amines1This test method is under the jurisdiction of ASTM Committee D-1 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.32 on Drying Oils.Current edition approved March 15,1992.Published May 1992.Originallypublished as D 2083 65 T.Last previous edition D 2083 66(1987).2Annual Book of ASTM Standards,Vol 06.03.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.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).D 2083 92(1998)2