1、Designation:D761922Standard Test Method forSizing and Counting Particles in Light and Middle DistillateFuels,by Automatic Particle Counter1,2This standard is issued under the fixed designation D7619;the number immediately following the designation indicates the year oforiginal adoption or,in the cas
2、e 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 U.S.Department of Defense.1.Scope*1.1 This test m
3、ethod uses a specific automatic particlecounter2(APC)to count and measure the size of dispersed dirtparticles,water droplets and other particles,in light and middledistillate fuel,and bio fuels such as biodiesel and biodieselblends,in the overall range from 4 m(c)to 100 m(c)and inthe size bands 4 m(
4、c),6 m(c),and 14 m(c).NOTE1ASTM and military specification fuels falling within thescope of this test method include Specifications:D975 grades 1D and 2D,D1655,D3699,D4814(see 14.1.1.1),D6751,D7467,distillate grades ofD396 and D2880,MIL-DTL-83133,and MIL-DTL-16884.NOTE2For the purposes of this test
5、method,water droplets arecounted as particles,and agglomerated particles are detected and countedas a single larger particle.Dirt includes biological particles.Although theprojected area of a particle is measured,this is expressed as the diameterof a sphere for the purposes of this test method.NOTE3
6、The notation(c),used with particle sizes,is used to denotethat the apparatus has been calibrated in accordance with ISO 11171.Strictly this only applies to particles up to 50 m.NOTE4This test method may be used for particle sizes bands up to100 m(c),however the precision has only been determined for
7、 the sizebands 4 m(c),6 m(c),and 14 m(c).All measurements are permillilitre.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its us
8、e.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 o
9、n 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:3D396 Specification for Fuel OilsD975 Specif
10、ication for Diesel FuelD1655 Specification for Aviation Turbine FuelsD2880 Specification for Gas Turbine Fuel OilsD3699 Specification for KerosineD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4175 Terminology Relating to Petroleum Products,LiquidFuels,and LubricantsD4177 Prac
11、tice for Automatic Sampling of Petroleum andPetroleum ProductsD4814 Specification for Automotive Spark-Ignition EngineFuelD5854 Practice for Mixing and Handling of Liquid Samplesof Petroleum and Petroleum ProductsD6300 Practice for Determination of Precision and BiasData for Use in Test Methods for
12、Petroleum Products,Liquid Fuels,and LubricantsD6751 Specification for Biodiesel Fuel Blend Stock(B100)for Middle Distillate FuelsD7467 Specification for Diesel Fuel Oil,Biodiesel Blend(B6 to B20)2.2 ASTM Adjuncts:4ADJ6300 D2PP Determination of Precision and Bias datafor Use in Test Methods for Petro
13、leum Products1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.14 on Stability,Cleanliness and Compatibility of Liquid Fuels.Current edition approved April 1,2022.Published May 2022.O
14、riginallyapproved in 2010.Last previous edition approved in 2017 as D7619 17.DOI:10.1520/D7619-22.2The sole source of the apparatus known to the committee at this time isSETA-AvCount,available from Stanhope-Seta,London Street,Chertsey,SurreyKT16 8AP UK.If you are aware of alternative suppliers,pleas
15、e provide thisinformation to ASTM International Headquarters.Your comments will receivecareful consideration of a meeting of the responsible technical committee,1whichyou may attend.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.
16、For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.4Out of print.*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 S