ASTM D6130-11

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Designation: D6130 − 11
Standard Test Method for
Determination of Silicon and Other Elements in Engine
Coolant by Inductively Coupled Plasma-Atomic Emission
1
Spectroscopy
This standard is issued under the fixed designation D6130; 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 2.2 US EPA Standards:
Method 6010, Inductively Coupled Plasma Method, SW-
1.1 This test method covers the determination of silicon in
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846, Test Methods for Evaluating Solid Waste
engine coolant by inductively coupled plasma-atomic emission
Method 200.7, Inductively Coupled Plasma - Atomic Emis-
spectroscopy (ICP-AES). Silicon can be determined as low as
sion Spectrometric Method for Trace ElementAnalysis of
the range of 5 ppm by this test method. Other elements also 3
Water And Wastes, EPA-600/4-79-020, revised 1984
found in engine coolant can be determined by this method.
3. Summary of Test Method
Thistestmethodisapplicabletothedeterminationofdissolved
or dispersed elements.
3.1 Elements in solution are determined, either sequentially
or simultaneously, by ICP-AES. New or used engine coolants
1.2 This test method is applicable to both new and used
are prepared by dilution. Samples and standards are introduced
engine coolant.
to the nebulizer using a peristaltic pump and the aerosol is
1.3 The values stated in SI units are to be regarded as
injected into an argon-supported inductively coupled plasma.
standard. No other units of measurement are included in this
The high temperature of the plasma atomizes the sample and
standard.
produces atomic emission intensities at wavelengths associated
with the desired elements. Emission intensity is proportional to
1.4 This standard does not purport to address all of the
concentration. Elemental determinations are made by compar-
safety concerns, if any, associated with its use. It is the
ing standard and sample emission intensities.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Significance and Use
bility of regulatory limitations prior to use.
4.1 Some engine coolants are formulated with silicon con-
taining additives. This test method provides a means of
2. Referenced Documents
determining the concentration of dissolved or dispersed ele-
2
ments which give an indication of this additive content in the
2.1 ASTM Standards:
engine coolant.
D1193 Specification for Reagent Water
D1176 Practice for Sampling and Preparing Aqueous Solu-
5. Interferences
tions of Engine Coolants orAntirusts forTesting Purposes
5.1 Interferences may be categorized as follows:
E177 Practice for Use of the Terms Precision and Bias in
5.1.1 Spectral—Light emission from spectral sources other
ASTM Test Methods
than the element of interest may contribute to apparent net
E691 Practice for Conducting an Interlaboratory Study to
signal intensity. Sources of spectral interference include direct
Determine the Precision of a Test Method
spectral line overlaps, broadened wings of intense spectral
lines, ion-atom recombination continuum emission, molecular
band emission and stray (scattered) light from the emission of
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This test method is under the jurisdiction ofASTM Committee D15 on Engine
elements at high concentrations. Avoid overlaps by selecting
Coolants and Related Fluids and is the direct responsibility of Subcommittee
alternate analytical wavelengths.
D15.04 on Chemical Properties.
5.1.2 Physical—Physical interferences are effects associated
Current edition approved Nov. 1, 2011. Published January 2012. Originally
approved in 1997. Last previous edition approved in 2009 as D6130–97a (2009).
with sample nebulization and transport processes such as
DOI: 10.1520/D6130-11.
viscosity and particulate contamination.
2
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
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Standards volume information, refer to the standard’s Document Summary page on Available from U. S. Environmental Protection Agency, Environmental Moni-
the ASTM website. toring and Support Laboratory, Cincinnati, OH 45268.
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D6130 − 11
5.1.3 Background—High background effects from scattered 9. Calibration and Standardization
light, etc., can be compensated for by background correction
9.1 Set the up instrument according to the manufacturer’s
adjacent to the analyte line.
instructions. Warm it up at
...