ASTM D6130-97a

Standard Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy

SCOPE
1.1 This test method covers the determination of silicon in engine coolant by inductively coupled plasma-atomic emission spectroscopy (ICP-AES). Silicon can be determined as low as the range of 5 ppm by this test method. Other elements also found in engine coolant can be determined by this method. This test method is applicable to the determination of dissolved or dispersed elements.  
1.2 This test method is applicable to both new and used engine coolant.  
1.3 The values stated in SI units are to be regarded as the standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Oct-1997
• ICS: 71.100.45 - Refrigerants and antifreezes
• Technical Committee: D15 - Engine Coolants and Related Fluids
• Drafting Committee: D15.04 - Chemical Properties

Relations

• Replaced By: ASTM D6130-97a(2003) - Standard Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7714-11(2021) - Standard Specification for Glycerin Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7388-23 - Standard Specification for Engine Coolant Grade 1,3-Propanediol (PDO)
• Effective Date: 10-Oct-1997
• Referred By: ASTM D8485-23 - Standard Test Method for Corrosion Test for Electric Vehicle Coolants in Glassware
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7518-20 - Standard Specification for 1,3 Propanediol (PDO) Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7713-18 - Standard Specification for Aqueous Engine Coolant Grade Glycol (53 % by Volume Nominal)
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7715-12(2021) - Standard Specification for Fully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines
• Effective Date: 10-Oct-1997
• Referred By: ASTM D2847-22 - Standard Practice for Testing Engine Coolants in Car and Light Truck Service
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7260-20 - Standard Practice for Optimization, Calibration, and Validation of Inductively Coupled Plasma-Atomic Emission Spectrometry (ICP-AES) for Elemental Analysis of Petroleum Products and Lubricants
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7640-16(2021) - Standard Specification for Engine Coolant Grade Glycerin
• Effective Date: 10-Oct-1997
• Referred By: ASTM D4985-10(2023) - Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA)
• Effective Date: 10-Oct-1997
• Referred By: ASTM E1177-23 - Standard Specification for Engine Coolant Grade Glycol
• Effective Date: 10-Oct-1997
• Referred By: ASTM D3306-21 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 10-Oct-1997
• Referred By: ASTM D7517-19 - Standard Specification for Fully-Formulated 1,3 Propanediol (PDO) Base Engine Coolant for Heavy-Duty Engines
• Effective Date: 10-Oct-1997
• Referred By: ASTM D8039-16(2023) - Standard Specification for Heat Transfer Fluids (HTF) for Heating and Air Conditioning (HVAC) Systems
• Effective Date: 10-Oct-1997

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
Designation:D6130–97a
Standard Test Method for
Determination of Silicon and Other Elements in Engine
Coolant by Inductively Coupled Plasma-Atomic Emission
Spectroscopy
This standard is issued under the fixed designation D 6130; 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. Summary of Test Method
1.1 This test method covers the determination of silicon in 3.1 Elements in solution are determined, either sequentially
engine coolant by inductively coupled plasma-atomic emission or simultaneously, by ICP-AES. New or used engine coolants
spectroscopy (ICP-AES). Silicon can be determined as low as are prepared by dilution. Samples and standards are introduced
the range of 5 ppm by this test method. Other elements also to the nebulizer using a peristaltic pump and the aerosol is
found in engine coolant can be determined by this method. injected into an argon-supported inductively coupled plasma.
Thistestmethodisapplicabletothedeterminationofdissolved The high temperature of the plasma atomizes the sample and
or dispersed elements. produces atomic emission intensities at wavelengths associated
1.2 This test method is applicable to both new and used with the desired elements. Emission intensity is proportional to
engine coolant. concentration. Elemental determinations are made by compar-
1.3 The values stated in SI units are to be regarded as the ing standard and sample emission intensities.
standard.
4. Significance and Use
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.1 Some engine coolants are formulated with silicon con-
taining additives. This test method provides a means of
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- determining the concentration of dissolved or dispersed ele-
ments which give an indication of this additive content in the
bility of regulatory limitations prior to use.
engine coolant.
2. Referenced Documents
5. Interferences
2.1 ASTM Standards:
D 1193 Specification for Reagent Water 5.1 Interferences may be categorized as follows:
5.1.1 Spectral—Light emission from spectral sources other
D 1176 Standard Practice for Sampling and Preparing
Aqueous Solutions of Engine Coolants or Antirusts for than the element of interest may contribute to apparent net
signal intensity. Sources of spectral interference include direct
Testing Purposes
E 691 Practice for Conducting an Interlaboratory Study to spectral line overlaps, broadened wings of intense spectral
lines, ion-atom recombination continuum emission, molecular
Determine the Precision of a Test Method
2.2 US EPA Standards: band emission and stray (scattered) light from the emission of
Method 6010, Inductively Coupled Plasma Method, SW- elements at high concentrations. Avoid overlaps by selecting
alternate analytical wavelengths.
846, Test Methods for Evaluating Solid Waste
Method 200.7, Inductively Coupled Plasma -Atomic Emis- 5.1.2 Physical—Physical interferences are effects associ-
ated with sample nebulization and transport processes such as
sion Spectrometric Method for Trace ElementAnalysis of
Water And Wastes, EPA-600/4-79-020, revised 1984 viscosity and particulate contamination.
5.1.3 Background—High background effects from scattered
light, etc., can be compensated for by background correction
This test method is under the jurisdiction ofASTM Committee D15 on Engine
adjacent to the analyte line.
Coolants and is the direct responsibility of Subcommittee D15.04 on Chemical
5.1.4 Chemical—Chemical interferences are caused by mo-
Properties.
lecular compound formation, ionization effects, and thermo-
Current edition approved Oct. 10, 1997. Published July 1998. Originally
published as D 6130–97. Last previous edition D 6130–97.
chemical effects associated with sample vaporization and
Annual Book of ASTM Standards, Vol 11.01.
atomization in the plasma. Normally these effects are not
Annual Book of ASTM Standards, Vol 15.05.
Annual Book of ASTM Standards, Vol 14.02.
Available from U. S. Environmental Protection Agency, Environmental Moni-
toring and Support Laboratory, Cincinnati, OH 45268.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
International (www.astm.org) for the latest information.
D6130
pronounced and can be minimized by careful selection of should be run for an additional 60 s after standards containing
operating conditions (incident power, plasma observation po- boron. Calibration should be validated and stability of stan-
sition, etc.). dards should be monitored.
6. Apparatus 10. Sample Preparation
6.1 Spectrometer—Aninductivelycoupledplasmaemission 10.1 Dilute the sample with deionized water so the concen-
spectrometer of the simultaneous or sequential type including tration of the element(s) of interest is in the linear detection
1 1
RF generator, torch, nebulizer, spray chamber, recommended range of the instrument. Generally a ⁄20 or ⁄50 dilution for used
peristaltic pump and host computer. engine coolant and a ⁄100 dilution for engine coolant concen-
trate are sufficient. Samples may be prepared by weight to
7. Reagents and Materials
volume or by volume to volume. Be certain when preparing
dilutions by volume that the entire sample aliquot is trans-
7.1 PurityofChemicals—Reagentgradeorbetterchemicals
shall be used for preparation of all standards and samples. ferred. Filter or centrifuge samples that contain particulate.
Other grades may be used provided it is first ascertained that
11. Procedure
the reagent is of sufficiently high purity to permit its use
11.1 Aspirate the prepared samples into the calibrated
without lessening the accuracy of the d
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