ASTM D5708-05

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D5708–05
Standard Test Methods for
Determination of Nickel, Vanadium, and Iron in Crude Oils
and Residual Fuels by Inductively Coupled Plasma (ICP)
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Atomic Emission Spectrometry
This standard is issued under the fixed designation D5708; 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* D1548 Test Method for Vanadium in Navy Special Fuel
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Oil
1.1 These test methods cover the determination of nickel,
D4057 Practice for Manual Sampling of Petroleum and
vanadium, and iron in crude oils and residual fuels by
Petroleum Products
inductively coupled plasma (ICP) atomic emission spectrom-
D4177 Practice for Automatic Sampling of Petroleum and
etry. Two different test methods are presented.
Petroleum Products
1.2 Test Method A (Sections 7-11 and 18-22)—ICP is used
D5185 Test Method for Determination of Additive Ele-
to analyze a sample dissolved in an organic solvent. This test
ments, Wear Metals, and Contaminants in Used Lubricat-
method uses oil-soluble metals for calibration and does not
ing Oils and Determination of Selected Elements in Base
purport to quantitatively determine or detect insoluble particu-
Oils by Inductively Coupled Plasma Atomic Emission
lates.
Spectrometry (ICP-AES)
1.3 Test Method B (Sections 12-22)—ICPis used to analyze
D6299 Practice for Applying Statistical Quality Assurance
a sample that is decomposed with acid.
and Control Charting Techniques to Evaluate Analytical
1.4 The concentration ranges covered by these test methods
Measurement System Performance
are determined by the sensitivity of the instruments, the
amount of sample taken for analysis, and the dilution volume.
3. Summary of Test Method
A specific statement is given in 15.2. Typically, the low
3.1 Test Method A—Approximately 10 g of the sample are
concentration limits are a few tenths of a mg/kg. Precision data
dissolved in an organic solvent (Warning—Combustible. Va-
are provided for the concentration ranges specified in Section
por is harmful.) to give a specimen solution containing 10 %
21.
(m/m) of sample. The solution is nebulized into the plasma,
1.5 The values stated in SI units are to be regarded as
and the intensities of the emitted light at wavelengths charac-
standard. The values given in parentheses are for information
teristic of the analytes are measured sequentially or simultane-
only.
ously. The intensities are related to concentrations by the
1.6 This standard does not purport to address all of the
appropriate use of calibration data.
safety concerns, if any, associated with its use. It is the
3.2 Test Method B—One to 20 g of sample are weighed into
responsibility of the user of this standard to establish appro-
a beaker and decomposed with concentrated sulfuric acid
priate safety and health practices and determine the applica-
(Warning—Poison. Causes severe burns. Harmful or fatal if
bility of regulatory limitations prior to use.
swallowed or inhaled.) by heating to dryness. Great care must
2. Referenced Documents be used in this decomposition because the acid fumes are
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corrosive and the mixture is potentially flammable. The re-
2.1 ASTM Standards:
sidual carbon is burned off by heating at 525°C in a muffle
D1193 Specification for Reagent Water
furnace. The inorganic residue is digested with nitric acid
(Warning—Poison. Causes severe burns. Harmful or fatal if
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These test methods are under the jurisdiction of ASTM Committee D02 on
swallowed or inhaled.), evaporated to incipient dryness, dis-
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
solved in dilute nitric acid, and made up to volume. The
D02.03 on Elemental Analysis.
solution is nebulized into the plasma of an atomic emission
Current edition approved Nov. 1, 2005. Published November 2005. Originally
approved in 1995. Last previous edition approved in 2002 as D5708–02. DOI:
spectrometer. The intensities of light emitted at characteristic
10.1520/D5708-05.
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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
Standards volume information, refer to the standard’s Document Summary page on
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the ASTM website. Withdrawn.
*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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D5708–05
wavelengths of the metals are measured sequentially or simul- 7.2 Nebulizer—The use of a high-solids nebulizer is op-
taneously.These in
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