ASTM E135-03d
(Terminology)Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
SCOPE
1.1 This is a compilation of terms commonly used in analytical chemistry for metals, ores, and related materials. Terms that are generally understood or defined adequately in other readily available sources are either not included or their sources are identified.
1.2 A definition is a single sentence with additional information included in a Discussion.
1.3 Definitions identical to those published by another standards organization or ASTM committee are identified with the name of the organization or the identifying document and ASTM committee.
1.4 Definitions specific to a particular field (such as emission spectrometry) are identified with an italicized introductory phrase.
General Information
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Standards Content (Sample)
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Designation: E 135 – 03d
Standard Terminology Relating to
Analytical Chemistry for Metals, Ores, and Related
1
Materials
This standard is issued under the fixed designation E 135; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Significance and Use
1.1 This is a compilation of terms commonly used in 3.1 Definitions given in Section 4 are intended for use in all
analytical chemistry for metals, ores, and related materials. standards on analytical chemistry for metals, ores, and related
Terms that are generally understood or defined adequately in materials. The definitions should be used uniformly and
other readily available sources are either not included or their consistently. The purpose of this terminology is to promote
sources are identified. clear understanding and interpretation of the standards in
1.2 A definition is a single sentence with additional infor- which definitions are used.
mation included in a Discussion.
4. Terminology Definitions
1.3 Definitions identical to those published by another
standards organization or ASTM committee are identified with
absorbance, n—in spectrometry, the logarithm to the base 10
the name of the organization or the identifying document and
of the reciprocal of the transmittance, T.
ASTM committee.
A 5 log ~1/T!52log T (1)
10 10
1.4 Definitions specific to a particular field (such as emis-
sion spectrometry) are identified with an italicized introductory
absorption (of electromagnetic radiation), n—a decrease in
phrase.
radiant energy when passing through matter, resulting in a
corresponding increase in the energy of the absorbing
2. Referenced Documents
system.
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2.1 ASTM Standards:
absorption spectrometry, n—the branch of spectroscopy
E 180 Practice for Determining the Precision of ASTM
pertaining to the absorption of electromagnetic radiation by
Methods for Analysis and Testing of Industrial and Spe-
atoms, ions, radicals, and molecules.
cialty Chemicals
analytical curve—see calibration curve.
E 876 Practice for Use of Statistics in the Evaluation of
analyte, n—in methods of chemical analysis, the component
Spectrometric Data
determined by a method.
E 1914 Practice for Use of Terms Relating to the Develop-
analytical gap, n—in atomic emission spectrometry, the re-
ment and Evaluation of Methods for Chemical Analysis
gion between two electrodes in which the specimen is
2.2 ISO Standard:
excited and from which radiant energy is used for analysis.
ISO Guide 30—Terms and Definitions Used in Connection
analytical line, n—the particular wavelength of an element
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with Reference Materials
used in determining the presence or concentration of that
element.
anneal, vt—in fire assay, to heat and then gradually cool a
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metal to remove internal stresses and make the material less
This terminology is under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
brittle.
responsibility of Subcommittee E01.23 on Terminology.
arc, condensed—see discharge, triggered capacitor.
Current edition approved October 10, 2003. Published December 2003. Origi-
continuous dc, n—a self-maintaining dc discharge.
nally approved in 1958. Last previous edition approved in 2003 as E 135 – 03c.
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noncapacitive ac, n—in atomic emission spectrometry,a
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
series of separate electrical discharges, individually self-
Standards volume information, refer to the standard’s Document Summary page on
initiating or initiated separately by another means, in which
the ASTM website.
3 each current pulse has a polarity that is reversed from the
Available from American Standards Institute, 25 W. 43rd St., 4th Floor, New
York, NY 10036. previous one.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E 135 – 03d
noncapacitive, intermittent dc, n—a series of electrical a unit quantity of sample.
discharges in which dc pulses are initiated by separate concentration range, n—in an analytical method, the concen-
means, either mechanically or electrically. trations within which a method has been tested and found
noncondensed, intermittent dc—see arc, noncapacitive, in- suitable for use.
termittent dc. counter electrode, n—in atomic emission spectrometry, the
arc line—not recommended, see atom line. electrode in an analytical pair that does not contain the
atom line, n—a spectral line r
...
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