ASTM C859-10

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Designation:C859–09 Designation:C859–10
Standard Terminology Relating to
1
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. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This terminology standard contains terms, definitions, descriptions of terms, nomenclature, and explanations of acronyms
and symbols specifically associated with standards under the jurisdiction of Committee C26 on Nuclear Fuel Cycle. This
terminology may also be applicable to documents not under the jurisdiction of Committee C26, in which case this terminology may
be referenced in those documents.
2. Terminology
abundance sensitivity, n—in methods of chemical analysis, the ratio of the ion beam intensity of the major isotope, M,tothe
background current at the adjacent mass positions.
(1) Abundance sensitivity 5ion current at mass Mion current at M 6 1
–1
activity, A, [T ], n—the measure of the rate of spontaneous nuclear transformations of a radioactive material. The SI unit for
activity is the becquerel (Bq), defined as 1 transformation per second. The original unit for activity was the curie (Ci), defined
10
as 3.7 3 10 transformations per second.
alteration, n—any change in the form, state, or properties of materials.
analyte, n—im method of chemical analysis, a sample component whose presence and concentration is of interest.
–1
becquerel (Bq), [T ], n—the SI unit of measure for activity, defined as 1 transformation per second.
beta radiation, n—an electron that was generated in the atomic nucleus during decay and has a negative charge of one.
continuing calibration blank check solution (CCB)—in methods of chemical analysis, a standard solution that has no analyte
and is used to verify blank response and freedom from carryover.
continuing calibration verification check solution (CCV)—in methods of chemical analysis, a standard solution (or set of
solutions) used to verify freedom from excessive instrument drift; the concentration is to be near the midrange of a linear curve.
crushed glass, n—in a glass leach test, small particles of glass produced by mechanically fracturing larger pieces of glass.
–1 10
curie (Ci), [T ]—the original unit of measure for activity, defined as 3.7 3 10 transformations per second.
determination, n—the process of carrying out a series of operations specified in the test method whereby a single value is
obtained.
2 –3
dose rate, [L T ], n—a quantity of absorbed dose received in a given unit of time.
high density concrete, n—a concrete having a density greater than 2400 kg per cubic meter (150 lb per cubic foot).
initial calibration verification check solution (ICV)—in methods of chemical analysis, a standard solution (or a set of standard
solutions) used to verify calibration standard levels; the concentration of analyte is to be near mid-range of the linear curve that
is mad
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