1、Designation:D545212An American National StandardDesignation:423/97Standard Test Method forParticulate Contamination in Aviation Fuels by LaboratoryFiltration1This standard is issued under the fixed designation D5452;the number immediately following the designation indicates the year oforiginal adopt
2、ion 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 Department of Defense.1.Scope*1.
3、1 This test method covers the gravimetric determinationby filtration of particulate contaminant in a sample of aviationturbine fuel delivered to a laboratory.1.1.1 The sample is filtered through a test membrane and acontrol membrane using vacuum.The mass change differenceidentifies the contaminant l
4、evel per unit volume.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
5、 to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For specific hazardstatements,see 4.2,7.3,7.5,11.2,and X1.7.2.Before using thisstandard,refer to suppliers safety labels,material safety datasheets,and technical literature.
6、2.Referenced Documents2.1 ASTM Standards:2D56 Test Method for Flash Point by Tag Closed Cup TesterD93 Test Methods for Flash Point by Pensky-MartensClosed Cup TesterD1193 Specification for Reagent WaterD1535 Practice for Specifying Color by the Munsell SystemD2244 Practice for Calculation of Color T
7、olerances andColor Differences from Instrumentally Measured ColorCoordinatesD2276 Test Method for Particulate Contaminant in AviationFuel by Line SamplingD3828 Test Methods for Flash Point by Small Scale ClosedCup TesterD4306 Practice for Aviation Fuel Sample Containers forTests Affected by Trace Co
8、ntaminationD4865 Guide for Generation and Dissipation of Static Elec-tricity in Petroleum Fuel SystemsD6615 Specification for Jet B Wide-Cut Aviation TurbineFuel3.Terminology3.1 Definitions:3.1.1 bond,vto connect two parts of a system electricallyby means of a bonding wire to eliminate voltage diffe
9、rences.3.1.2 ground,vtto connect electrically with ground(earth).3.1.3 membrane filter,na porous article of closely con-trolled pore size through which a liquid is passed to separatematter in suspension.3.1.3.1 DiscussionResearch Report RR:D02-10123con-tains information on membrane filters that meet
10、 the require-ments therein.3.1.4 particulate,adjof or relating to minute separateparticles.3.1.4.1 DiscussionSolids generally composed of oxides,silicates,and fuel insoluble salts.3.1.5 volatile fuelsrelatively wide boiling range volatiledistillate.1This test method is under the jurisdiction of ASTM
11、 Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.J0.05 on Fuel Cleanliness.Current edition approved June 1,2012.Published October 2012.Originallyapproved in 1993.Last previous edition approved in 2008 as D545208.DOI:10.1520/D5452-12.This test met
12、hod has been separated from D2276 and has been modifiedprimarily to establish improved safety measures.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 Docu
13、ment Summary page onthe ASTM website.3Supporting data(including a list of suppliers who have provided data indicatingtheir membranes,field monitors,and field monitor castings)have been filed atASTM International Headquarters and may be obtained by requesting ResearchReport RR:D02-1012.*A Summary of
14、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 3.1.5.1 DiscussionThese are identified as Jet B in Speci-fication D6615 or the military grade known as JP-4.Any fuelor mixture having a fla
15、sh point less than 38C is considered tobe volatile.4.Summary of Test Method4.1 A known volume of fuel is filtered through a pre-weighed test membrane filter and the increase in membranefilter mass is weight determined after washing and drying.Thechange in weight of a control membrane located immedia
16、telybelow the test membrane filter is also determined.The objec-tive of using a control membrane is to assess whether the fuelitself influences the weight of a membrane.The particulatecontaminant is determined from the increase in mass of the testmembrane relative to the control membrane filter.4.2 In order to ensure safety in handling,the test methodrequires that volatile fuels be transferred from the samplecontainer to the funnel without pouring using a support standshown in Fig.1.Fuels having