ASTM D7619-2012b red 2500 Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels by Automatic Particle Counter《通过自动颗粒计数器在轻质和中间馏出燃料颗粒的粒度测量和计数方法的.pdf
《ASTM D7619-2012b red 2500 Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels by Automatic Particle Counter《通过自动颗粒计数器在轻质和中间馏出燃料颗粒的粒度测量和计数方法的.pdf》由会员分享,可在线阅读,更多相关《ASTM D7619-2012b red 2500 Standard Test Method for Sizing and Counting Particles in Light and Middle Distillate Fuels by Automatic Particle Counter《通过自动颗粒计数器在轻质和中间馏出燃料颗粒的粒度测量和计数方法的.pdf(11页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D7619 12aD7619 12bStandard 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
2、 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 uses a specific automatic particle counter2 (APC) to count
3、 and measure the size of dispersed dirt particles,water droplets and other particles, in light and middle distillate fuel, and bio fuels such as biodiesel and biodiesel blends, in theoverall range from 4 m(c) to 100 m(c) and in the size bands 4 m(c), 6 m(c), and 14 m(c).NOTE 1ASTM and military speci
4、fication fuels falling within the scope of this test method include Specifications: D975 grades 1D and 2D, D1655,D3699, D4814 (see 14.1.1.1), D6751, D6985, D7467 and , distillate grades of D396 and D2880., MIL-DTL-83133, and MIL-DTL-16884.NOTE 2For the purposes of this test method, water droplets ar
5、e counted as particles, and agglomerated particles are detected and counted as a singlelarger particle. Dirt includes biological particles. Although the projected area of a particle is measured, this is expressed as the diameter of a sphere forthe purposes of this test method.NOTE 3The notation (c),
6、 used with particle sizes, is used to denote that the apparatus has been calibrated in accordance with ISO 11171. Strictly thisonly applies to particles up to 50 m.NOTE 4This test method may be used for particle sizes bands up to 100 m(c), however the precision has only been determined for the size
7、bands4 m(c), 6 m(c), and 14 m(c). All measurements are per mL.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is
8、 the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:3D396 Specification for Fuel OilsD975 Specification for Diesel Fuel OilsD1655 Specifica
9、tion for Aviation Turbine FuelsD2880 Specification for Gas Turbine Fuel OilsD3699 Specification for KerosineD4057 Practice for Manual Sampling of Petroleum and Petroleum ProductsD4177 Practice for Automatic Sampling of Petroleum and Petroleum ProductsD4814 Specification for Automotive Spark-Ignition
10、 Engine FuelD5854 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum ProductsD6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and LubricantsD6751 Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distil
11、late FuelsD6985 Specification for Middle Distillate Fuel OilMilitary Marine Applications (Withdrawn 2010)4D7467 Specification for Diesel Fuel Oil, Biodiesel Blend (B6 to B20)2.2 ASTM Adjuncts:4ADJ6300 D2PP Determination of Precision and Bias data for Use in Test Methods for Petroleum Products1 This
12、test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.14 onStability and Cleanliness of Liquid Fuels.Current edition approved June 1, 2012Dec. 1, 2012. Published October 2012March 2013. Originally approve
13、d in 2010. Last previous edition approved in 2012 asD761912.12a. DOI: 10.1520/D7619-12A.10.1520/D7619-12B.2 The sole source of the apparatus known to the committee at this time is SETA-AvCount, available from Stanhope-Seta, London Street, Chertsey, Surrey KT16 8AP UK.If you are aware of alternative
14、suppliers, please provide this information toASTM International Headquarters. Your comments will receive careful consideration of a meetingof the responsible technical committee,1 which you may attend.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Servic
15、e at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.4 Out of print.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made t
16、o the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summ
17、ary 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 States12.3 ISO Standards:5ISO 11171 Hydraulic Fluid PowerCalibration of Automatic Particle Counters for LiquidsISO 4406 Hydraulic Fluid
18、 PowerFluidsMethod for Coding Level of Contamination by Solid ParticlesISO 12103-A1 Specification for Ultra Fine Test Dust (UFTD)ISO 12103-A3 Specification for Medium Test Dust (MTD)2.4 U.S. Dept. of Defense Specifications:6MIL-DTL-83133 Turbine Fuel, Aviation, Kerosene Type, JP-8 (NATO F-34), NATO
19、F-35, and JP-8+100 (NATO F-37)MIL-DTL-16884 Fuel, Naval Distillate3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 particles, nsolid particles and dispersed water droplets which are detected and counted by this test method.3.1.2 particle count, nthe sum of the number of solid p
20、articles and dispersed water droplets.3.1.3 particle size, m(c), nthe projected area equivalent diameter of spherical particles passing through the detecting cell inaccordance with ISO 11171.3.1.4 particle size cumulative count, nthe total number of particles per mL, in size bands, 4 m(c), 6 m(c), a
21、nd 14 m(c),3.1.4.1 DiscussionAutomatic particle counters may also count the total number of particles per mL, in size bands, in addition to those in 3.1.4, upto 100 m.3.1.5 ISO Codes, na standard method for coding the level of contamination by particles.3.1.5.1 DiscussionResults are expressed by ISO
22、 Codes as specified by ISO 4406. These codes are written in the form of x/y/z, where x, y and z areISO Codes equivalent to the cumulative counts, per mL, for particle size bands 4 m(c), 6 m(c), and 14 m(c) respectively.An example of this is given in Appendix X1.NOTE 5All particle counts are per mL.3
23、.1.6 coincidence error limit, nthe highest concentration of ISO ultrafine test dust (ISO 12103-A1 or ISO UFTD) that can becounted with an automatic particle counter with less than 5 % error resulting from the presence of more than one particle in thesensor/laser optical path at a time.3.1.7 test spe
24、cimen, nan aliquot of the test sample. (See Section 10.)4. Summary of Test Method24.1 The optical measurement cell comprises a light source and an optical sensor. The principle of operation is the measurementof laser light obscuration. Particles/droplets entrained within the test specimen cast shado
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