1、Designation:D711115aStandard Test Method forDetermination of Trace Elements in Middle Distillate Fuelsby Inductively Coupled Plasma Atomic EmissionSpectrometry(ICP-AES)1This standard is issued under the fixed designation D7111;the number immediately following the designation indicates the year ofori
2、ginal 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 This test method covers the determination of selectedelements in mid
3、dle distillate fuels by inductively coupledplasma atomic emission spectrometry(ICP-AES).The specificelements are listed in Table 1.The concentration range of thistest method is approximately 0.1 mg kg to 2.0 mg/kg.The testmethod may be used for concentrations outside of this range;however,the precis
4、ion statements may not be applicable.Middle distillate fuels covered in this test method have alldistillation fractions contained within the boiling range of150 C to 390 C.This includes,but is not limited to,dieselfuels and aviation turbine fuels.1.2 This test method is not intended to analyze insol
5、ubleparticulates.However,very small particulate matter(smallerthan a micrometre)will be carried into the plasma and beincluded in the quantitative analysis.1.3 This test method may give a result that is higher than thetrue value if an analyte is present in the sample in a form whichis sufficiently v
6、olatile.For example,hexamethyldisiloxane willgenerate a biased high result for silicon.1.4 The values stated in SI units are to be regarded asstandard.1.5 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 st
7、andard 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:2D2880 Specification for Gas Turbine Fuel OilsD3605 Test Method for Trace Metals in Gas Turbine Fuelsby Atomic Absorption and
8、Flame Emission SpectroscopyD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4306 Practice for Aviation Fuel Sample Containers forTests Affected by Trace ContaminationD5185 Test Method for Multielement Determination ofUsed and Unused Lubricating Oils and Base Oils byInductively C
9、oupled Plasma Atomic Emission Spectrom-etry(ICP-AES)D6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD6792 Practice for Quality System in Petroleum Productsand Lubricants Testing LaboratoriesD7260 Practice fo
10、r Optimization,Calibration,and Valida-tion of Inductively Coupled Plasma-Atomic EmissionSpectrometry(ICP-AES)for Elemental Analysis of Petro-leum Products and Lubricants2.2 Military Standard:MIL-DTL-16884 Fuel,Naval Distillate33.Terminology3.1 Definitions:3.1.1 calibration,nthe determination of the
11、values of thesignificant parameters by comparison with values indicated bya set of reference standards.3.1.2 calibration curve,nthe graphical or mathematicalrepresentation of a relationship between the assigned(known)values of standards and the measured responses from themeasurement system.3.1.3 cal
12、ibration standard,na standard having an ac-cepted value(reference value)for use in calibrating a measure-ment instrument or system.3.1.4 detection limit,na stated limiting value that desig-nates the lowest concentration that can be determined withconfidence and that is specific to the analytical pro
13、cedure used.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.03 on Elemental Analysis.Current edition approved July 1,2015.Published August 2015.Originallyapproved in 2005.Last previ
14、ous edition approved in 2015 as D7111 15.DOI:10.1520/D7111-15A.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.3Av
15、ailable online at http:/quicksearch.dla.mil or http:/*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 3.1.5 emission spectroscopy,nmeasurement of the energyspectrum emitted b
16、y or from an object under some form ofenergetic stimulation;for example,light or electrical discharge.3.1.6 inductively coupled plasma,na high temperaturedischarge generated by passing an ionizable gas through amagnetic field induced by a radio frequency coil surroundingthe tubes that carry the gas.3.1.7 radio frequency,nthe range of frequencies between3 kHz and 300 GHz.3.1.8 standard,na physical or chemical reference used asa basis for comparison or calibration.3.2 Definitions of Terms Specific