ASTM D5016-16

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Designation: D5016 − 08 D5016 − 16
Standard Test Method for
Total Sulfur in Coal and Coke Combustion Residues Using a
High-Temperature Tube Furnace Combustion Method with
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Infrared Absorption
This standard is issued under the fixed designation D5016; 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.
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ε NOTE—Table A1.1 was editorially revised in July 2009.
1. Scope
1.1 This test method describes a procedure using a high-temperature tube furnace and infrared detection for the determination
of sulfur in coal and coke combustion residues, including lab ashes and residues from coal and coke combustion.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
2. Referenced Documents
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2.1 ASTM Standards:
D121 Terminology of Coal and Coke
D3174 Test Method for Ash in the Analysis Sample of Coal and Coke from Coal
D3682 Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes
D3683 Test Method for Trace Elements in Coal and Coke Ash by Atomic Absorption
D4326 Test Method for Major and Minor Elements in Coal and Coke Ash By X-Ray Fluorescence
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D4621 Guide for Quality Management in an Organization That Samples or Tests Coal and Coke (Withdrawn 2010)
D5142 Test Methods for Proximate Analysis of the Analysis Sample of Coal and Coke by Instrumental Procedures (Withdrawn
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2010)
D6349 Test Method for Determination of Major and Minor Elements in Coal, Coke, and Solid Residues from Combustion of
Coal and Coke by Inductively Coupled Plasma—Atomic Emission Spectrometry
D6357 Test Methods for Determination of Trace Elements in Coal, Coke, and Combustion Residues from Coal Utilization
Processes by Inductively Coupled Plasma Atomic Emission Spectrometry, Inductively Coupled Plasma Mass Spectrometry,
and Graphite Furnace Atomic Ab
3. Terminology
3.1 For definitions of terms used in these test methods, refer to Terminology D121.
3.2 Throughout this test method the term ash is used to describe the sample being analyzed. The term ash is to be interpreted
as a combustion residue.
4. Summary of Test Method
4.1 A weighed test portion is mixed with a promoting agent and ignited in a tube furnace an operating temperature of
1450°C1450 °C in a stream of oxygen. The combustible sulfur contained in the test portion is oxidized to gaseous oxides of sulfur.
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This test method is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.29 on Major Elements in
Ash and Trace Elements of Coal.
Current edition approved Feb. 1, 2008Sept. 1, 2016. Published February 2008September 2016. Originally approved in 1989. Last previous edition approved 20072008
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as D5016 – 07a.D5016 – 08 . DOI: 10.1520/D5016-08E01.10.1520/D5016-16.
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volume information, refer to the standard’s Document Summary page on the ASTM website.
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The last approved version of this historical standard is referenced on www.astm.org.
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D5016 − 16
Moisture and particulates are removed by traps filled with anhydrous magnesium perchlorate. The gas stream is passed through
a cell in which sulfur dioxide is measured by an infrared absorption detector. Sulfur dioxide absorbs IR energy at a precise
wavelength within the IR spectrum. Energy is absorbed as the gas passes through the cell body in which the IR energy is being
transmitted; thus, at the detector, less energy is received. All other IR energy is eliminated from reaching the detector by a precise
wavelength filter. The absorption of IR energy can be attributed only to sulfur dioxide whose concentration is proportional to the
change in energy at the detector. One cell is used as bo
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