ASTM D5056-22
(Test Method)Standard Test Method for Trace Metals in Petroleum Coke by Atomic Absorption
Standard Test Method for Trace Metals in Petroleum Coke by Atomic Absorption
SIGNIFICANCE AND USE
5.1 The presence and concentration of various metallic elements in a petroleum coke are major factors in the suitability of the coke for various uses. This test method provides a means of measuring the amounts of those metallic elements in the coke sample.
5.2 The concentration of these elements is one factor in determining the economic value of the coke. Coke used for production of electrodes will have different specification requirements dependent on what service the electrodes will be used in. Generally the fuel cokes are highest in metallic element concentration and have the least economic value.
5.3 The test method provides a standard procedure for use by the purchaser and seller in the commercial transfer of petroleum coke to determine whether the lot of coke meets the specifications of the purchasing party.
SCOPE
1.1 This test method covers the analysis for the commonly determined trace metals (aluminum, calcium, iron, nickel, silicon, sodium, and vanadium) in laboratory analysis samples of raw and calcined petroleum coke by atomic absorption spectroscopy.
1.2 The elemental concentration ranges for which this test method is applicable and the limits of detection of this test method are listed in Table 1.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For warning statements, see Sections 9 – 11.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D5056 − 22
Standard Test Method for
1
Trace Metals in Petroleum Coke by Atomic Absorption
This standard is issued under the fixed designation D5056; 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* Measurement System Performance
D7740 Practice for Optimization, Calibration, and Valida-
1.1 This test method covers the analysis for the commonly
tion ofAtomicAbsorption Spectrometry for MetalAnaly-
determined trace metals (aluminum, calcium, iron, nickel,
sis of Petroleum Products and Lubricants
silicon, sodium, and vanadium) in laboratory analysis samples
of raw and calcined petroleum coke by atomic absorption
3. Terminology
spectroscopy.
3.1 Definitions:
1.2 The elemental concentration ranges for which this test
3.1.1 For definitions of terms used in this test method, refer
method is applicable and the limits of detection of this test
to Terminology D4175.
method are listed in Table 1.
4. Summary of Test Method
1.3 The values stated in SI units are to be regarded as the
standard.
4.1 A representative sample of the petroleum coke is ashed
at 525 °C under specified conditions. The ash is fused with
1.4 This standard does not purport to address all of the
lithium tetraborate (Li B O ), or lithium metaborate (LiBO ).
safety concerns, if any, associated with its use. It is the 2 4 7 3
Themeltisdissolvedindilutehydrochloricacid(HCl),andthe
responsibility of the user of this standard to establish appro-
resultant solution is analyzed by atomic absorption spectros-
priate safety, health, and environmental practices and deter-
copy for the following elements: aluminum, calcium, iron,
mine the applicability of regulatory limitations prior to use.
nickel, silicon, sodium, and vanadium.
For warning statements, see Sections9–11.
1.5 This international standard was developed in accor-
4.2 Standard practice for using atomic absorption spectrom-
dance with internationally recognized principles on standard-
etry for determination of metals in petroleum products and
ization established in the Decision on Principles for the
lubricants can be found in Practice D7740.
Development of International Standards, Guides and Recom-
5. Significance and Use
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5.1 The presence and concentration of various metallic
elementsinapetroleumcokearemajorfactorsinthesuitability
2. Referenced Documents
ofthecokeforvarioususes.Thistestmethodprovidesameans
2
2.1 ASTM Standards:
of measuring the amounts of those metallic elements in the
D346 Practice for Collection and Preparation of Coke
coke sample.
Samples for Laboratory Analysis
5.2 The concentration of these elements is one factor in
D1193 Specification for Reagent Water
determining the economic value of the coke. Coke used for
D4175 Terminology Relating to Petroleum Products, Liquid
production of electrodes will have different specification re-
Fuels, and Lubricants
quirements dependent on what service the electrodes will be
D6299 Practice for Applying Statistical Quality Assurance
used in. Generally the fuel cokes are highest in metallic
and Control Charting Techniques to Evaluate Analytical
element concentration and have the least economic value.
5.3 The test method provides a standard procedure for use
1
This test method is under the jurisdiction of ASTM Committee D02 on by the purchaser and seller in the commercial transfer of
Petroleum Products, Liquid Fuels, and Lubricantsand is the direct responsibility of
petroleum coke to determine whether the lot of coke meets the
Subcommittee D02.03 on Elemental Analysis.
specifications of the purchasing party.
Current edition approved Oct. 1, 2022. Published October 2022. Originally
approved in 1990. Last previous edition approved in 2017 as D5056 – 17. DOI:
6. Interferences
10.1520/D5056-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1 Spectral interferences can occur when using other than
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the recommended wavelength for analysis or when using
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. multi-elemental hollow cathode lamps.
*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
1
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...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5056 − 17 D5056 − 22
Standard Test Method for
1
Trace Metals in Petroleum Coke by Atomic Absorption
This standard is issued under the fixed designation D5056; 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 test method covers the analysis for the commonly determined trace metals (aluminum, calcium, iron, nickel, silicon,
sodium, and vanadium) in laboratory analysis samples of raw and calcined petroleum coke by atomic absorption spectroscopy.
1.2 The elemental concentration ranges for which this test method is applicable and the limits of detection of this test method are
listed in Table 1.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.For warning statements, see Sections 89 – 1011.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D346 Practice for Collection and Preparation of Coke Samples for Laboratory Analysis
D1193 Specification for Reagent Water
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measure-
ment System Performance
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricantsand is the direct responsibility of Subcommittee
D02.03 on Elemental Analysis.
Current edition approved May 1, 2017Oct. 1, 2022. Published May 2017October 2022. Originally approved in 1990. Last previous edition approved in 20152017 as
D5056 – 15. – 17. DOI: 10.1520/D5056-17.10.1520/D5056-22.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
1
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D5056 − 22
TABLE 1 Applicable Concentration Ranges and Limits of
Detection on a Dried Original Sample Basis
Concentration Limit
Element
Range (mg/kg) Detection (mg/kg)
Aluminum 15 to 105 5.0
Calcium 20 to 225 1.0
Iron 150 to 500 1.5
Nickel 5 to 200 1.5
Silicon 90 to 420 20
Sodium 15 to 115 0.2
Vanadium 5 to 500 2.0
D7740 Practice for Optimization, Calibration, and Validation of Atomic Absorption Spectrometry for Metal Analysis of
Petroleum Products and Lubricants
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminology D4175.
4. Summary of Test Method
4.1 A representative sample of the petroleum coke is ashed at 525 °C under specified conditions. The ash is fused with lithium
tetraborate (Li B O ), or lithium metaborate (LiBO ). The melt is dissolved in dilute hydrochloric acid (HCl), and the resultant
2 4 7 3
solution is analyzed by atomic absorption spectroscopy for the following elements: aluminum, calcium, iron, nickel, silicon,
sodium, and vanadium.
4.2 Standard practice for using atomic absorption spectrometry for determination of metals in petroleum products and lubricants
can be found in Practice D7740.
5. Significance and Use
5.1 The presence and concentration of various metallic elements in a petroleum coke are major factors in the suitability of the coke
for various uses. This test method provides a means of measuring the amounts of those metallic elements in the coke sample.
5.2 The concentration of these elements is one factor in determining the economic value of the coke. Coke used for production
of electrodes will have different specific
...
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