ASTM D8127-2017 0000 Standard Test Method for Coupled Particulate and Elemental Analysis using X-ray Fluorescence (XRF) for In-Service Lubricants《利用X射线荧光(XRF)对在用润滑剂进行颗粒物和元素耦合分析的标准试.pdf
《ASTM D8127-2017 0000 Standard Test Method for Coupled Particulate and Elemental Analysis using X-ray Fluorescence (XRF) for In-Service Lubricants《利用X射线荧光(XRF)对在用润滑剂进行颗粒物和元素耦合分析的标准试.pdf》由会员分享,可在线阅读,更多相关《ASTM D8127-2017 0000 Standard Test Method for Coupled Particulate and Elemental Analysis using X-ray Fluorescence (XRF) for In-Service Lubricants《利用X射线荧光(XRF)对在用润滑剂进行颗粒物和元素耦合分析的标准试.pdf(8页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D8127 17Standard Test Method forCoupled Particulate and Elemental Analysis using X-rayFluorescence (XRF) for In-Service Lubricants1This standard is issued under the fixed designation D8127; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e 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 automatic wear particle analysis2test method forin-service lubricants describes u
3、sing a combination of poreblockage particle counting and energy dispersive X-ray fluo-rescence (EDXRF) spectrometry for the quantitative determi-nation of solid particle counts larger than four (4) micrometres,and elemental content of suspended particulate of iron (Fe) andcopper (Cu) in such lubrica
4、nts.1.2 This test method provides for the determination of theelemental content of suspended particulate of Fe greater than4 m in the range of 6 mg/kg to 223 mg/kg. Suspendedparticulate of copper greater than 4 m is determined in therange of 3.5 mg/kg to 92.4 mg/kg in the lubricant. Total particleco
5、unt greater than 4 m is determined in the range of11 495 particles mL greater than 4 m to 2 169 500 parti-cles mL greater than 4 m in the lubricant.1.3 This test method is applicable to all known in-servicelubricants (API Groups I-V) at any stage of degradation.1.4 This test method uses an empirical
6、 inter-element correc-tion methodology.1.5 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the
7、user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision
8、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:D4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD5854 Practice for
9、 Mixing and Handling of Liquid Samplesof Petroleum and Petroleum ProductsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD7669 Guide for Practical Lubricant Condition Data TrendAnalysisD7720 Guide for Statistically Evaluating Measurand AlarmLimits when Using Oil Analysis to M
10、onitor Equipmentand Oil for Fitness and ContaminationD7751 Test Method for Determination of Additive Elementsin Lubricating Oils by EDXRF AnalysisD7874 Guide for Applying Failure Mode and Effect Analy-sis (FMEA) to In-Service Lubricant TestingE1621 Guide for Elemental Analysis by Wavelength Disper-s
11、ive X-Ray Fluorescence Spectrometry2.2 ISO Standards:3ISO 21018:3 Hydraulic fluid powerMonitoring the levelof particulate contamination of the fluidPart 3: Use ofthe filter blockage technique3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 contaminant particles, nparticles intr
12、oduced froman extraneous source into the lubricant of a machine or engine.3.1.2 empirical inter-element correction, nlinear inter-element correction that is constructed from a matrix of cali-bration samples prepared with varying levels and amounts ofknown interferences. By diagonalizing the matrix o
13、f elementsand interferences, an equation for the inter-element correctionsfor each element of interest is obtained.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility ofSubcommittee D02.03 on Elemental
14、Analysis.Current edition approved July 1, 2017. Published August 2017. DOI: 10.1520/D8127-17.2Iron (Fe) and copper (Cu) alloy metals are common elements for machine loadbearing surfaces including bearings, gears, pistons, rings, valves, pins, couplings,and cylinders. This in-service lubricant analys
15、is method addresses common chal-lenges associated with extracting, counting, sizing, and elementally analyzingtelltale wear debris so that appropriate observations and actions may be recom-mended.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 100
16、36, 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 recognized principles on standardization established in the Decision on Principles for
17、theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13.1.3 filter active area, narea of the filter membranethrough which liquid is flowing.3.1.3.1 DiscussionAn example filter active area is 0.32squar
18、e centimetre (cm2).3.1.4 filter cartridge, ndisposable assembly consisting ofa plastic filter holder, and the filter membrane itself mountedover a sealing plastic feedthrough.3.1.4.1 Discussion On the back side of the plasticfeedthrough, against which the filter membrane is mounted, apiece of felt i
19、s mounted, through which the liquid exits thefilter cartridge. The felt is used to wick any remaining liquid offthe filter membrane once the syringing process is completed.3.1.5 filter membrane, na thin, flat, and smooth disposablemembrane with circular pores of approximately 4 m incapture diameter.
20、3.1.5.1 DiscussionAn example would be a polycarbonatetrack-etched membrane. There are approximately 32 000 ofsuch pores in the filter active area. Note that the nominal poresize is 5 m in diameter but the membrane manufacturingprocess yields an effective pore capture diameter of approxi-mately 4 m d
21、ue to observed edge material on the pores.3.1.6 interrogated material, nsolid material present on thefilter membrane that is analyzed by the EDXRF spectrometer.3.1.7 layering effect, ncomplex interferences to theEDXRF spectrometry due to the formation of multiple layersof particulate on sample that
22、is being analyzed.3.1.7.1 DiscussionWhen multiple layers are present, inci-dent X-rays are attenuated as they travel through multiplelayers of the sample, and interferences between X-rays emerg-ing from various layers of the sample may affect the analysis.3.1.8 neat sample, na sample of in-service l
23、ubricantdrawn directly from the machinery without further processing.3.1.9 suspended particulate, nparticles, includingcontaminant, wear, and soft particles, which can be trapped bya membrane filtration process.3.1.10 syringing, vprocess by which a syringe is emptiedthrough a filter by way of applie
24、d force using a linear actuatoron its plunger.3.1.10.1 DiscussionThe filter is sealed to the syringe toensure that fluid passes from the syringe and through the filteronly.3.1.11 wear, ndamage to a solid surface, usually involvingprogressive loss or displacement of material, due to relativemotion be
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