1、Designation: D8072 17Standard Classification forReporting Solids and Insoluble Water Contamination ofHydrocarbon-Based Petroleum Products When Analyzed byImaging Instrumentation1This standard is issued under the fixed designation D8072; the number immediately following the designation indicates the
2、year oforiginal 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. Scope1.1 This classification identifies a concise code which
3、canbe used by imaging instruments for reporting of solid particlesand insoluble water content in hydrocarbon-based petroleumproducts. The coding system includes the reporting of watercontent and particle counts in the 1 m range.NOTE 1 Calibration is not in accordance with ISO 11171. Compara-bility t
4、o ISO 4406 and its requirements is not inferred.1.2 It is valid for imaging instruments measuring particlesize by projected equivalent particle diameter (see 3.1.1), andwhich are calibrated and verified using particle size and countstandards traceable to NIST.21.3 Due to the variation of method and
5、instrument types andresolutions, the reporting of results will include the ASTMstandard used to conduct the analysis.1.4 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.5 This standard does not purport to address all of thesaf
6、ety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internat
7、ionally recognized principles on 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 ISO Standards:3ISO 3 Pre
8、ferred numbersSeries of preferred numbersISO 4406 Hydraulic Fluid PowerFluidsMethod for cod-ing the level of contamination by solid particlesISO 11171 Hydraulic fluid powerCalibration of automaticparticle counters for liquids3. Terminology3.1 Definitions:3.1.1 projected equivalent particle diameter,
9、 nthe diam-eter calculated from the projected area of a particle if that areaformed a circle, and in equation form is:Projected Equivalent Particle Diameter = =(projected area/0.785)4. Significance and Use4.1 The purpose of this code is to simplify the reporting ofsolid particle counts and water dro
10、plet concentrations presentin petroleum products when measured by imaging instruments.Industry is accustomed to using a three number code to reportcontamination levels and so this reporting method for imaginginstruments is presented to organize results in a similar format.4.2 Particle count results
11、as described by this classificationare reported per the preferred number ranges in Table 1.Preferred numbers were originally developed by Charles Re-nard and codified in ISO 3. This format is the preferredreporting format since ISO 4406 has no ability to report water.4.3 Imaging instruments are capa
12、ble of identifying insolublewater droplets separate from solids, and therefore a suffix codeis added after the three (or four) solid particle codes to reportwater content in parts per million (ppm (v). To report watercontent, detected droplets will be converted to ppm (v). Thedistribution of water d
13、roplet size may be reported if it is useful,but it is not required.1This classification is under the jurisdiction of ASTM Committee D02 onPetroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommittee D02.96.05 on In-Service Lubricants Particle Counting Practices an
14、dTechniques.Current edition approved May 1, 2017. Published May 2017. DOI: 10.1520/D8072-17.2Referenced standards must be certified by the manufacturer as prepared toappropriate National Institute of Standards and Technology (NIST) standards oftraceability. See http:/www.nist.gov.3Available from Ame
15、rican National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally re
16、cognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15. Basis of Classification5.1 The code converts particle coun
17、ts into a single numberidentifier, representing particle count ranges as shown in Table1, in each of three basic particle size ranges which are used toreport the result in the following example format:DXXXX 17 / 16 / 14 6where:DXXXX references the ASTM standard used to perform the analysis.17 repres
18、ents the particle count in the $4 m range,16 represents the particle count in the $6 m range,14 represents the particle count in the $14 m range,6 represents the water concentration in parts per million (ppm (v).5.2 An optional 5th digit may be added to report the 1mrange and would be displayed as s
19、hown in the followingexample format:DXXXX 20 / 17 /16 /14 6where the first numerical entry (20) represents the 1mrange with the other entries the same as in 5.1.6. Reporting6.1 For solids, the ranges of Table 1 represent particlecounts reported on a per millilitre basis and made by imaginginstrument
20、s measuring the projected equivalent particle diam-eter.6.2 Reporting Format:6.2.1 The basic code structure required for reporting is asfollows:DXXXX X / Y / Zwhere the DXXXX details the ASTM standard used toperform the analysis, and X, Y and Z are identifying numbersfrom Table 1 for particle counts
21、 in the 4 m, 6 m, and14 m ranges respectively.6.2.2 Optional expanded code formats for reporting include:DXXXX X /Y / Z Wwhere W is the identifying number for the water concentra-tion in ppm (v), andDXXXX V / X / Y / Z Wwhere V is the identifying number for the 1 m range.Reporting of water (W) remai
22、ns optional.7. Keywords7.1 imaging; particle count; waterASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such paten
23、t rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited eithe
24、r for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair he
25、aring you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standar
26、d may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Dan
27、vers, MA 01923, Tel: (978) 646-2600; http:/ 1 Particle Count Conversion TableGreater than Less than orequal toRange IdentifyingNumber2 500 000 281 300 000 2 500 000 28640 000 1 300 000 27320 000 640 000 26160 000 320 000 2580 000 160 000 2440 000 80 000 2320 000 40 000 2210 000 20 000 215000 10 000 202500 5000 191300 2500 18640 1300 17320 640 16160 320 1580 160 1440 80 1320 40 1210 20 1151002.5 5 91.3 2.5 80.64 1.3 70.32 0.64 60.16 0.32 50.08 0.16 40.04 0.08 30.02 0.04 20.01 0.02 100.010D8072 172
