ASTM C859-92b
(Terminology)Standard Terminology Relating to Nuclear Materials (Withdrawn 2005)
Standard Terminology Relating to Nuclear Materials (Withdrawn 2005)
WITHDRAWN RATIONALE
This standard covers terminology relating to nuclear materials.
Formerly under the jurisdiction of Committee C26 on Nuclear Fuel Cycle, this terminology was withdrawn in May 2005, in accordance with the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:C859–92b
Standard Terminology Relating to
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Nuclear Materials
This standard is issued under the fixed designation C859; 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 (e) indicates an editorial change since the last revision or reapproval.
absorbance, A—in spectrochemical analysis, the logarithm to alpha activity—the spontaneous emission of doubly charged
the base 10 of the reciprocal of the transmittance. helium ions from the nucleus.
analysis (physical or chemical)—the determination of physi-
A 5log ~1/T! (1)
cal or chemical properties or composition of a material.
absorptivity, a—in spectrochemical analysis, the absorbance
analytical reagent grade—reagents of high purity that meet
(A) divided by the product of the cell path length (b) and the
ACS specifications, as published by theAmerican Chemical
concentration (c).
Society.
a 5 A/bc (2)
apparent density—the mass of a material divided by its
abundance sensitivity (isotopic measurement)—the ratio of
apparent volume including closed pores.
the ion beam intensity of the major isotope, M,tothe
archive sample—any sample retained for record or for future
background current at the adjacent mass positions.
use.
atomic absorption spectrometry—the measurement of the
ioncurrentatmass M
Abundancesensitivity 5 (3)
ioncurrentat M 61 light absorbed at the wavelength of resonance lines by the
accelerator—as used in a furnace, a material used to promote unexcited atoms of an element.
the rapid and complete reaction of a sample.
atomic weight—the mean weight of the atom of an element in
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accelerator (for pyrohydrolysis)—a substance that speeds a relation to C 512.000.
reaction, in this case, a pyrohydrolysis.
background intensity—in spectrochemical analyses, the op-
acceptance test—a test, or series of tests, conducted by the tical density or darkening of the photographic plate or film
procuring agency, or an agent thereof, to determine whether
near the spectrographic line being measured, or the intensity
anindividuallotofmaterialsconformstothepurchaseorder of light measured with a phototube near the spectrographic
or contract or to determine the degree of uniformity of the
line being measured.
material supplied by the vendor, or both. bagout port—in the nuclear industry, an opening in a glove-
box to which a bag is attached and in which material and
DISCUSSION—Specifications usually state sampling technique, test
equipment can be encased, then removed without possible
procedures, and minimum requirements for acceptance.
contamination of the surrounding environment.
−24 2
accountability—a term used to designate the internal control
barn—a unit of area equal to 10 cm , used to express the
system used for nuclear materials, but does not include
probability of the occurrence of a specific nuclear interac-
physical protection.
tion.
actinide series—the series of elements beginning with ac-
batch—a quantity of material made in a production sequence
tinium, Element No. 89, and continuing through lawren-
that is expected to be uniform in isotopic, physical, and
cium, Element No. 103.
chemical characteristics.
aliquant—a representative portion of a whole that divides the
beta activity—the spontaneous emission of electrons from a
whole leaving a remainder.
nucleus.
aliquant (solution)—a measured quantity of a homogeneous,
bias—apersistentpositiveornegativedeviationofthemethod
liquid mixture that, when taken by either weight or volume,
average from the correct value or accepted reference value.
is not an evenly divisible portion of the total mixture.
(Also referred to as “constant” or “systematic error.”)
aliquot—a representative portion of a whole that divides the
binder—a cementing medium; either a material added to the
whole exactly without leaving a remainder.
powder to increase the green strength of the compact, and
that is expelled during sintering; or a material (usually of
1 relatively low melting point) added to a powder mixture for
This terminology is under the jurisdiction of ASTM Committee C-26 on
the specific purpose of cementing together powder particles
NuclearFuelCycleandisthedirectresponsibilityofSubcommitteeC26.02onFuel
and Fertile Material Specifications.
that alone would not sinter into a strong body.
Current edition approved Dec. 15, 1992. Published May 1993. Originally
published as C859–77. Last previous edition C859–92a.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C859
boron equivalent—in the nuclear industry, the absorptive comparator, spectral—an instrument for the inspection and
ca
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