ASTM D7619-2010 4375 Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels by Automatic Particle Counter 《使用自动粒子计数器确定轻质和中间馏分燃料的粒度尺寸和颗粒数量的标准试验方.pdf
《ASTM D7619-2010 4375 Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels by Automatic Particle Counter 《使用自动粒子计数器确定轻质和中间馏分燃料的粒度尺寸和颗粒数量的标准试验方.pdf》由会员分享,可在线阅读,更多相关《ASTM D7619-2010 4375 Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels by Automatic Particle Counter 《使用自动粒子计数器确定轻质和中间馏分燃料的粒度尺寸和颗粒数量的标准试验方.pdf(9页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D7619 10Standard 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 t
2、he 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 test method uses a specific automatic particlecounter2(APC) to count and measure
3、 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(c), $6 m(c), and $14 m(c).NOTE 1ASTM specification fuels falling w
4、ithin the scope of this testmethod include Specifications: D975 grades 1D and 2D, D3699, D4814(see 14.1.1.1), D6751, D6985, D7467 and distillate grades of D396 andD2880.NOTE 2For the purposes of this test method, water droplets arecounted as particles, and agglomerated particles are detected and cou
5、ntedas 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.NOTE 3The notation (c), used with particle sizes, is used to denotethat the apparatus has been
6、calibrated in accordance with ISO 11171.Strictly this only applies to particles up to 50 m.NOTE 4This test method may be used for particle sizes bands up to100 m(c), however the precision has only been determined for the sizebands $4 m(c), $6 m(c), and $14 m(c).1.2 The values stated in SI units are
7、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 use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices a
8、nd determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3D396 Specification for Fuel OilsD975 Specification for Diesel Fuel OilsD2880 Specification for Gas Turbine Fuel OilsD3699 Specification for KerosineD4057 Practice for Manual Sampling of
9、Petroleum andPetroleum ProductsD4177 Practice 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
10、and BiasData for Use in Test Methods for Petroleum Products andLubricantsD6751 Specification for Biodiesel Fuel Blend Stock (B100)for Middle Distillate FuelsD6985 Specification for Middle Distillate Fuel OilMilitary Marine Applications4D7467 Specification for Diesel Fuel Oil, Biodiesel Blend(B6 to B
11、20)2.2 ASTM Adjuncts:5ADJ6300 D2PP Determination of Precision and Bias datafor Use in Test Methods for Petroleum Products2.3 ISO Standards:61This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and is the direct responsibility of SubcommitteeD02.14 on
12、Stability and Cleanliness of Liquid Fuels.Current edition approved May 1, 2010. Published August 2010.2The following equipment, as listed in RR:D02-1696, Seta-Avcount 91700-0available from Stanhope-Seta, London Street, Chertsey, Surrey KT16 8AP UK wasused to develop the precision statement. This lis
13、ting is not an endorsement orcertification by ASTM International.3For 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 webs
14、ite.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.5For referenced ASTM adjuncts contact ASTM Customer Service atserviceastm.org.6Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.
15、org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ISO 11171 Hydraulic Fluid PowerCalibration of Auto-matic Particle Counters for LiquidsISO 4406 Hydraulic Fluid PowerFluidsMethod forCoding Level of Contamination by Solid ParticlesI
16、SO 12103-A1 Specification for Ultra Fine Test Dust(UFTD)ISO 12103-A3 Specification for Medium Test Dust (MTD)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 particles, nsolid particles and dispersed water drop-lets which are detected and counted by this test method.3.1.2 parti
17、cle count, nthe sum of the number of solidparticles and dispersed water droplets.3.1.3 particle size, m(c), nthe projected area equivalentdiameter of spherical particles passing through the detectingcell in accordance with ISO 11171.3.1.4 particle size cumulative count, nthe total number ofparticles
18、 per mL, in size bands,$4 m(c),$6 m(c), and$14m(c),3.1.4.1 DiscussionAutomatic particle counters may alsocount the total number of particles per mL, in size bands, inaddition to those in 3.1.4,upto$100 m.3.1.5 ISO Codes, na standard method for coding the levelof contamination by particles.3.1.5.1 Di
19、scussionResults are expressed by ISO Codes asspecified by ISO 4406. These codes are written in the form ofx/y/z, where x, y and z are ISO Codes equivalent to thecumulative counts, per mL, for particle size bands $4 m(c),$6 m(c), and $14 m(c) respectively. An example of this isgiven in Appendix X1.NO
20、TE 5All particle counts are per mL.3.1.6 coincidence error limit, nthe highest concentrationof ISO ultrafine test dust (ISO 12103-A1 or ISO UFTD) thatcan be counted with an automatic particle counter with lessthan 5 % error resulting from the presence of more than oneparticle in the sensor/laser opt
21、ical path at a time.3.1.7 test specimen, nan aliquot of the test sample. (SeeSection 10.)4. Summary of Test Method24.1 The optical measurement cell comprises a light sourceand an optical sensor. The principle of operation is themeasurement of laser light obscuration. Particles/droplets en-trained wi
22、thin the test specimen cast shadows on the opticalsensor causing a reduction of the output voltage of the sensor.The voltage drop is a function of the particle/droplet size. Eachdetected particle is counted, sized and recorded. Upon comple-tion of the test the software calculates and displays the nu
23、mberof obscuration events for each of the predetermined size bands.4.2 The test specimen is mixed in its container to suspendthe particles. Upon initiation of a test, the automatic particlecounter (APC) draws the test specimen directly from a testspecimen container (see Fig. A1.1). The test sequence
24、 com-mences by flushing the optical measurement cell and pipeworkwith 30 mL of the test specimen. This is immediately followedby the test of a 10 mL test specimen where particles in each ofthe specified size bands are counted. This flushing and mea-surement is then repeated. If the size band $4 m(c)
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