1、Designation: D4175 15b1D4175 15cStandard Terminology Relating toPetroleum, Petroleum Products, and Lubricants1This standard is issued under the fixed designation D4175; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st 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 NOTETerms were transferred and updated edito
3、rially in October 2015.1. Scope*1.1 This terminology standard covers the compilation of terminology developed by Committee D02 on Petroleum Products,Liquid Fuels, and Lubricants, except that it does not include terms/definitions specific only to the standards in which they appear.1.1.1 The terminolo
4、gy, mostly definitions, is unique to petroleum, petroleum products, lubricants, and certain products frombiomass and chemical synthesis. Meanings of the same terms outside of applications to petroleum, petroleum products, andlubricants can be found in other compilations and in dictionaries of genera
5、l usage.1.1.2 The terms/definitions exist in two places: (1) in the standards in which they appear and (2) in this compilation.2. Terminology2.1 Alphabetical listing of terms with definitions for each term showing attributions as to source and subcommittee jurisdictionis in bold print following the
6、definition. Those showing no attributes are under the jurisdiction of Subcommittee CS 95. Someabbreviations, acronyms, and symbols are included in the list.3-MPA, n3-methylphenylamine D02.J0 D6812AAS, natomic absorption spectrometry, an analytical technique for measuring metal content of solutions,
7、based on a combinationof flame source, hollow cathode lamp, photomultiplier, and a readout device. D02.03 D7876abrasion, nwear due to hard particles or hard protuberances forced against and moving along a solid surface.D02.B0 D4998abrasive wearwear due to hard particles or hard protuberances forced
8、against and moving along a solid surface. D02.L0D5182absolute filtration rating, nthe diameter of the largest hard spherical particle that will pass through a filter under specified testconditions. This is an indication of the largest opening in the filter element. D02.N0 D4174absorbance, nlogarithm
9、 to the base 10 of the ratio of the reciprocal of the transmittance. D02.03 D7740absorbance, A,nthe molecular property of a substance that determines its ability to take up radiant power, expressed by:A 5log10 1/T!52log10Twhere T is the transmittance.DISCUSSIONAbsorbance expresses the excess absorpt
10、ion over that of a specified reference or standard. It is implied that compensation has been affected forreflectance losses, solvent absorption losses, and refractive effects, if present, and that attenuation by scattering is small compared with attenuation byabsorption. D02.04 D20081 This terminolo
11、gy is under the jurisdiction ofASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of SubcommitteeD02.95 on Terminology.Current edition approved Aug. 1, 2015Oct. 15, 2015. Published August 2015November 2015. Originally approved in 1983. Last previo
12、us edition approved in 2015 asD4175 15a.D4175 15b1. DOI: 10.1520/D4175-15BE01.10.1520/D4175-15C.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 to the previous version. Becauseit may not be technically po
13、ssible 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 Summary of Changes section appears at the end of this standardC
14、opyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1absorptivity, a,nthe specific property of a substance to absorb radiant power per unit sample concentration and path length,expressed by:a 5Af/bcwhere:A = the absorbance,f = the dilution
15、factor,b = sample cell path length, andc = the quantity of absorbing substance contained in a volume of solvent.D02.04 D2008acceptance limit (AL), na numerical value that defines the point between acceptable and unacceptable quality.DISCUSSIONThe AL is not necessarily the specification limit. It is
16、the value that takes into account the specification value, the test method precision, and theconfidence level desired for defining minimum acceptable quality relative to the specification value.D02.94 D3244accepted reference value (ARV), nvalue that serves as an agreed-upon reference for comparison
17、and that is derived as (1) atheoretical or established value, based on scientific principles, (2) an assigned value, based on experimental work of somenational or international organization, such as the U.S. National Institute of Standards andTechnology (NIST), or (3) a consensusvalue, based on coll
18、aborative experimental work under the auspices of a scientific or engineering group.DISCUSSIONIn the context of this test method, accepted reference value is understood to apply to the ignition delay of specific reference materials determined underreproducibility conditions by collaborative experime
19、ntal work. D02.01 D6890, D02.94 D6299, D6792DISCUSSIONIn the context of this test method, accepted reference value is understood to apply to the Research octane number of specific reference materialsdetermined empirically under reproducibility conditions by the National Exchange Group or another rec
20、ognized exchange testing organization.D02.01 D2699, D2700DISCUSSIONIn the context of this method, accepted reference value is understood to apply to the ignition delay of specific reference materials determined underreproducibility conditions by collaborative experimental work. D02.01 D7170DISCUSSIO
21、NIn the context of this test method, accepted reference value is understood to apply to the Supercharge and octane number ratings of specific referencematerials determined empirically under reproducibility conditions by the National Exchange Group or another recognized exchange testingorganization.
22、D02.01 D909accepted reference value (ARV), na value that serves as an agreed-upon reference for comparison, and which is derived as:(1) a theoretical or established value, based on scientific principles, (2) an assigned or certified value, based on experimentalwork of some national or international
23、organization, or (3) a consensus or certified value, based on collaborative experimentalwork under the auspices of a scientific or engineering group. D02.25 D3764; D02.01 D613accuracy, nthe closeness of agreement between a test result and an accepted reference value. D02.94 D6792accuracy, nthe close
24、ness of agreement between an observed value and an accepted reference value.D02.94 D6299, D7372acid number, nthe quantity of a specified base, expressed in milligrams of potassium hydroxide per gram of sample, requiredto titrate a sample in a specified solvent to a specified endpoint using a specifi
25、ed detection system.DISCUSSIOND4175 15c2In this test method, acids or salts with dissociation constants greater than 109, are titrated to a green end point with p-naphtholbenzein indicator.D02.06 D3339DISCUSSIONIn this test method, the acid number is calculated from the number of drops required to p
26、roduce a change in solution color from blue-green to orange,compared to the number of drops required to produce an identical color change using a reference standard. Because this is a direct comparison method,the acid number value can be reported in milligrams of potassium hydroxide per gram of samp
27、le. D02.06 D5770DISCUSSIONIn this test method, the indicator is p-naphtholbenzein titrated to a green/green-brown end point in a toluene-water-isopropanol solvent. D02.06D974DISCUSSIONThis test method expresses the quantity of base as milligrams of potassium hydroxide per gram of sample, that is req
28、uired to titrate a sample in amixture of toluene and propan-2-ol to which a small amount of water has been added from its initial meter reading in millivolts to a meter readingin millivolts corresponding to an aqueous basic buffer solution or a well-defined inflection point as specified in the test
29、method. D02.06 D664DISCUSSIONThis test method provides additional information. The quantity of base, expressed as milligrams of potassium hydroxide per gram of sample, requiredto titrate a sample in the solvent from its initial meter reading in millivolts to a meter reading in millivolts correspondi
30、ng to a freshly prepared aqueousacidic buffer solution or a well-defined inflection point as specified in the test method shall be reported as the strong acid number. D02.06 D664DISCUSSIONThe causes and effects of the so-called strong acids and the causes and effects of the other acids can be very s
31、ignificantly different. Therefore, the userof this test method shall differentiate and report the two, when they are found. D02.06 D664acidity, nthe quality, state or degree of being acid.DISCUSSIONIn this test method, the criterion for acidity is a pink or red color when methyl orange indicator is
32、used. D02.06 D1093across (or against) grain, ndirection in a body with preferred orientation due to forming stresses that has the maximum c-axisalignment as measured in an X-ray diffraction test. D02.F0 C709activated sludge, nthe precipitated solid matter, consisting mainly of bacteria and other aqu
33、atic microorganisms, that is producedin a domestic wastewater treatment plant; activated sludge is used primarily in secondary sewage treatment to microbiallyoxidized dissolved organic matter in the effluent. D02.12 D6139activation energy (Ea)measure of temperature effects on the rate of oxidation i
34、n the kinetic, or chemical control, regime.Activation energy is calculated from the Arrhenius equation:OR5Zexp2Ea/RT!where:OR = oxidation rate,R = 8.314 J mole-1 K-1 is the universal gas constant,T = absolute temperature (in Kelvin), andZ = pre-exponential factor.The activation energy and pre-expone
35、ntial factor are calculated from linearized form of Arrhenius equation, that is, from theslope and intercept of the linear plot of the logarithm of oxidation rate versus the inverse of absolute temperature (1/T):log10 OR!5log10 Z 2Ea/2.303 RT!Activation energy is expressed in units of kJ/mol. Pre-ex
36、ponential factor is expressed in the same units as the oxidation rates,namely g h-1 m-2 (for Za calculated from area-normalized oxidation rates, ORa) or g g-1 h-1 (for Zw calculated from weight-normalized oxidation rates, ORw). D02.F0 D7542D4175 15c3active grease-sampling device, ndevice designed to
37、 take an active sample of a lubricating grease from a bearing, gear, or driveshaft located in a grease-lubricated component. D02.G0 D7718active sampling, vto use a sampling device to actively gather an in-service lubricating grease sample from a grease-lubricatedcomponent. D02.G0 D7718actuate, vto h
38、old the interior cylinder of the active grease-sampling device while pushing the exterior cylinder forward towardthe grease-lubricated component that is being sampled allowing lubricating grease to fill the sampling device. D02.G0 D7718acute ecotoxicity, nthe propensity of a material to produce adve
39、rse behavioral, biochemical, or physiological effects innon-human organisms or populations in a short period of time, usually not constituting a substantial portion of the life span ofthe organism. D02.N0 D6046acute ecotoxicity, nthe propensity of a test material to produce adverse behavioral, bioch
40、emical or physiological effects innon-human organisms or populations in a short period, usually not constituting a substantial portion of the life span. D02.12D6384acute ecotoxicity test, na comparative ecotoxicity test in which a representative subpopulation of organisms is exposed todifferent trea
41、t rates of a test material and is observed for a short period, usually not constituting a substantial portion of theirlife span. D02.12 D6384acute toxicity test, na comparative toxicity test in which a representative subpopulation of organisms is exposed to different treatrates of a test material an
42、d is observed for a short period usually not constituting a substantial portion of their life span. D02.12D6081additive, na material added to another, usually in small amounts, to impart or enhance desirable properties or to suppressundesirable properties. D02.B0 D5862additive, nsubstance added to a
43、 base aviation gasoline in relatively small amounts that either enables that base aviation gasolineto meet the applicable specification properties or does not alter the applicable specification properties of that base aviationgasoline beyond allowable limits. D02.J0 D7826adenosine monophosphate, nmo
44、lecule formed by the removal of two (2) molecules of phosphate (one pyrophosphate molecule)from ATP. D02.14 D7463adenosine triphosphate, nmolecule comprised of a purine and three phosphate groups, that serves as the primary energytransport molecule in all biological cells.D02.14 D7463adherent insolu
45、bles (formerly adherent gum), nmaterial that is produced in the course of stressing distillate fuel under theconditions of this test and which adheres to the glassware after fuel has been flushed from the system. D02.14 D7462adhesive wear(scuffing), nwear due to localized bonding between contacting
46、solid surfaces leading to material transfer betweenthe two surfaces or loss from either surface. D02.L0 D5182adiabaticity, nthe condition in which there is no significant gain or loss of heat throughout the length of the column.DISCUSSIONWhen distilling a mixture of compounds as is the case of crude
47、 petroleum, there will be a normal increase in reflux ratio down the column. In the casewhere heat losses occur in the column, the internal reflux is abnormally greater than the reflux in the head. The opposite is true when the column gainsheat, as with an overheated mantle. D02.08 D2892adjustment,
48、noperation of bringing the portable digital density meter to a state of performance suitable for its use, by settingor adjusting the instrument constants.D02.04 D7777aerobe, nan organism that requires oxygen to remain metabolically active.DISCUSSIONAerobes use oxygen as their terminal electron accep
49、tor in their primary energy-generating metabolic pathways. Aerobes require oxygen for survival,using aerobic metabolic processes to generate energy for growth and survival. D02.14 D6469aerobic, adj(1) taking place in the presence of oxygen; (2) living or active in the presence of oxygen.D02.N0 D6006, D6046D4175 15c4AETabbreviation for atmospheric equivalent temperature.agglomerate, nin manufactured carbon and graphite product te
