ASTM D4175-09ae3
(Terminology)Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
Standard Terminology Relating to Petroleum, Petroleum Products, and Lubricants
SCOPE
1.1 This terminology standard covers the compilation of terminology developed by Committee D02 on Petroleum Products and Lubricants, except that it does not include terms/definitions specific only to the standards in which they appear.
1.1.1 The terminology, mostly definitions, is unique to petroleum, petroleum products, lubricants, and certain products from biomass and chemical synthesis. Meanings of the same terms outside of applications to petroleum, petroleum products, and lubricants can be found in other compilations and in dictionaries of general usage.
1.1.2 The terms/definitions exist in two places: (1) in the standards in which they appear and (2) in this compilation.
General Information
Standards Content (Sample)
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Designation: D4175 − 09a
StandardTerminology Relating to
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Petroleum, Petroleum Products, and Lubricants
This standard is issued under the fixed designation D4175; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1
ε NOTE—Terms were transferred editorially in August 2010.
2
ε Note—Terms were transferred editorially in September 2011.
3
ε Note—Terms were transferred editorially in October 2012.
1. Scope* specified test conditions. This is an indication of the largest
opening in the filter element. [D02.N0] D4174
1.1 This terminology standard covers the compilation of
terminology developed by Committee D02 on Petroleum
absorbance, n—logarithm to the base 10 of the ratio of the
Products and Lubricants, except that it does not include
reciprocal of the transmittance. [D02.03] D7740
terms/definitions specific only to the standards in which they
absorbance, A, n—the molecular property of a substance that
appear.
determinesitsabilitytotakeupradiantpower,expressedby:
1.1.1 The terminology, mostly definitions, is unique to
petroleum,petroleumproducts,lubricants,andcertainproducts
A 5 log ~1/T!52log T
10 10
from biomass and chemical synthesis. Meanings of the same
where T is the transmittance.
termsoutsideofapplicationstopetroleum,petroleumproducts,
DISCUSSION—Absorbance expresses the excess absorption over that
and lubricants can be found in other compilations and in
ofaspecifiedreferenceorstandard.Itisimpliedthatcompensationhas
dictionaries of general usage.
been affected for reflectance losses, solvent absorption losses, and
1.1.2 The terms/definitions exist in two places: (1) in the
refractive effects, if present, and that attenuation by scattering is small
standards in which they appear and (2) in this compilation.
compared with attenuation by absorption. [D02.04] D2008
2. Terminology absorptivity, a, n—the specific property of a substance to
absorbradiantpowerperunitsampleconcentrationandpath
2.1 Alphabetical listing of terms with definitions for each
length, expressed by:
term showing attributions as to source and subcommittee
jurisdiction is in bold print following the definition. Those a 5 Af/bc
showing no attributes are under the jurisdiction of Subcommit-
where:
tee CS 95. Some abbreviations, acronyms and symbols are
A = the absorbance,
included in the list.
f = the dilution factor,
3-MPA, n—3-methylphenylamine [D02.J0] D6812 b = sample cell path length, and
c = the quantity of absorbing substance contained in a
abrasion, n—wear due to hard particles or hard protuberances
volume of solvent.
forced against and moving along a solid surface. [D02.B0]
[D02.04] D2008
D4998
acceptance limit (AL), n—a numerical value that defines the
abrasive wear—wear due to hard particles or hard protuber-
point between acceptable and unacceptable quality.
ances forced against and moving along a solid surface.
DISCUSSION—The AL is not necessarily the specification limit. It is
[D02.L0] D5182
thevaluethattakesintoaccountthespecificationvalue,thetestmethod
precision, and the confidence level desired for defining minimum
absolute filtration rating, n—the diameter of the largest hard
acceptable quality relative to the specification value. [D02.94]
spherical particle that will pass through a filter under
D3244
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accepted reference value (ARV, n—value that serves as an
This terminology is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
agreed-upon reference for comparison and that is derived as
D02.95 on Terminology.
(1) a theoretical or established value, based on scientific
Current edition approved Oct. 1, 2009. Published November 2009. Originally
principles, (2) an assigned value, based on experimental
approved in 1983. Last previous edition approved in 2009 as D4175–09. DOI:
10.1520/D4175-09AE03. work of some national or international organization, such as
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4175 − 09a
DISCUSSION—The causes and effects of the so-called strong acids and
the U.S. National Institute of Standards and Technology
the causes and effects of the other acids can be very significantly
(NIST), or (3) a consensus value, based on collaborative
different. Therefore, the user of this test method shall differentiate and
experimental work under the auspices of a scientific or
...
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