ASTM D8010-18

Standard Test Method for Determination of Water Soluble Alkali Content in Coal

SIGNIFICANCE AND USE
5.1 Results obtained from the test method are used to serve a number of interests, including the indication of possible boiler tube fouling and possible furnace corrosion problems.
SCOPE
1.1 This test method describes a procedure for the determination of water soluble sodium as sodium oxide (Na2O) and potassium as potassium oxide (K2O) in the analysis of coal samples prepared in accordance with Practice D2013.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.3 This test method is derived in part from the ASME procedure water soluble alkalis.2  
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.  
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.

General Information

• Status: Published
• Publication Date: 31-Aug-2018
• ICS: 73.040 - Coals
• Technical Committee: D05 - Coal and Coke
• Drafting Committee: D05.21 - Methods of Analysis

Relations

• Refers: ASTM D3180-15 - Standard Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
• Effective Date: 01-Jan-2015
• Refers: ASTM D121-15 - Standard Terminology of Coal and Coke
• Effective Date: 01-Sep-2015
• Refers: ASTM D7448-16 - Standard Practice for Establishing the Competence of Laboratories Using ASTM Procedures in the Sampling and Analysis of Coal and Coke
• Effective Date: 01-Mar-2016
• Refers: ASTM E832-81(2019) - Standard Specification for Laboratory Filter Papers
• Effective Date: 01-Jul-2019

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: D8010 − 18
Standard Test Method for
1
Determination of Water Soluble Alkali Content in Coal
This standard is issued under the fixed designation D8010; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D7448Practice for Establishing the Competence of Labora-
tories Using ASTM Procedures in the Sampling and
1.1 This test method describes a procedure for the determi-
Analysis of Coal and Coke
nation of water soluble sodium as sodium oxide (Na O) and
2
D7582Test Methods for Proximate Analysis of Coal and
potassium as potassium oxide (K O) in the analysis of coal
2
Coke by Macro Thermogravimetric Analysis
samples prepared in accordance with Practice D2013.
E691Practice for Conducting an Interlaboratory Study to
1.2 The values stated in SI units are to be regarded as
Determine the Precision of a Test Method
standard. The values given in parentheses after SI units are
E832Specification for Laboratory Filter Papers
providedforinformationonlyandarenotconsideredstandard. 4
2.2 ISO Standard:
1.3 This test method is derived in part from the ASME ISO 5725-6: 1994Accuracy of measurement methods and
2
procedure water soluble alkalis.
results—Part 6: Use in practice of accuracy values
1.4 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Fordefinitionsoftermsusedinthistestmethod,referto
responsibility of the user of this standard to establish appro-
Terminology D121.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Summary of Test Method
1.5 This international standard was developed in accor-
4.1 Sodiumandpotassiumsaltsareleachedfromthesample
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the during a lengthy digestion with water and a wetting agent.The
concentrations of sodium and potassium are measured in the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical filteredliquidbyanappropriatespectrometrictechniqueforthe
elements sodium and potassium.
Barriers to Trade (TBT) Committee.
2. Referenced Documents
5. Significance and Use
3
2.1 ASTM Standards:
5.1 Results obtained from the test method are used to serve
D121Terminology of Coal and Coke
a number of interests, including the indication of possible
D1193Specification for Reagent Water
boiler tube fouling and possible furnace corrosion problems.
D2013Practice for Preparing Coal Samples for Analysis
6. Interferences
D3173Test Method for Moisture in theAnalysis Sample of
Coal and Coke
6.1 Several types of interference effects may contribute to
D3302Test Method for Total Moisture in Coal
inaccuracies in the determination of sodium and potassium.
D3180Practice for Calculating Coal and Coke Analyses
Follow the manufacturer’s operating guide to develop and
from As-Determined to Different Bases
apply correction factors to compensate for the interferences.
7. Apparatus
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal
and Coke and is the direct responsibility of Subcommittee D05.21 on Methods of
7.1 Analytical balance, with sensitivity of 0.1mg.
Analysis.
7.2 Digestion Apparatus:
Current edition approved Sept. 1, 2018. Published October 2018. Originally
approved in 2015. Last previous edition approved in 2016 as D8010–16. DOI:
7.2.1 Stirring Hotplate and Bars, with operating tempera-
10.1520/D8010-18.
ture up to 200°C.
2
“Coal Fouling and Slagging Parameters.” ASME H-86. Editor E.C.
7.2.1.1 Erlenmeyer flask with cover, 250mL.
Winegartner, 1974.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D8010 − 18
7.2.1.2 Refluxing column (optional). 8.5 Blank Solutions—Two types of blank solutions are
7.2.2 Hot Block Digestion: required: a calibration blank of water that is used to establish
the analytical
...

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: D8010 − 16 D8010 − 18
Standard Practice Test Method for
1
Determination of Water Soluble Alkali Content in Coal
This standard is issued under the fixed designation D8010; 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 practice describes a procedure for the determination of water soluble sodium as sodium oxide (Na O) and potassium
2
as potassium oxide (K O) in the analysis of coal samples prepared in accordance with Practice D2013.
2
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2
1.3 This practice is derived in part from the ASME procedure water soluble alkalis.
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.
2. Referenced Documents
3
2.1 ASTM Standards:
D121 Terminology of Coal and Coke
D1193 Specification for Reagent Water
D2013 Practice for Preparing Coal Samples for Analysis
D3173 Test Method for Moisture in the Analysis Sample of Coal and Coke
D3302 Test Method for Total Moisture in Coal
D3180 Practice for Calculating Coal and Coke Analyses from As-Determined to Different Bases
D7448 Practice for Establishing the Competence of Laboratories Using ASTM Procedures in the Sampling and Analysis of Coal
and Coke
D7582 Test Methods for Proximate Analysis of Coal and Coke by Macro Thermogravimetric Analysis
E832 Specification for Laboratory Filter Papers
3. Terminology
3.1 For definitions of terms used in this practice, refer to Terminology D121.
4. Summary of Practice
4.1 Sodium and potassium salts are leached from the sample during a lengthy digestion with water and a wetting agent. The
concentrations of sodium and potassium are measured in the filtered liquid by an appropriate spectrometric technique for the
elements sodium and potassium.
5. Significance and Use
5.1 Results obtained from the practice are used to serve a number of interests, including the indication of possible boiler tube
fouling and possible furnace corrosion problems.
6. Interferences
6.1 Several types of interference effects may contribute to inaccuracies in the determination of sodium and potassium. Follow
the manufacturer’s operating guide to develop and apply correction factors to compensate for the interferences.
1
This test method is under the jurisdiction of ASTM Committee D05 on Coal and Coke and is the direct responsibility of Subcommittee D05.21 on Methods of Analysis.
Current edition approved Sept. 1, 2016Sept. 1, 2018. Published September 2016October 2018. Originally approved in 2015. Last previous edition approved in 20152016
as D8010D8010 – 16.–15. DOI: 10.1520/D8010-16.10.1520/D8010-18.
2
“Coal Fouling and Slagging Parameters.” ASME H-86. Editor E.C. Winegartner, 1974.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D8010 − 18
7. Apparatus
7.1 Analytical balance, with sensitivity of 0.1 mg.
7.2 Digestion Apparatus
7.2.1 Stirring Hotplate and Bars, with operating temperature up to 200 °C.
7.2.1.1 Erlenmeyer flask with cover, 250 mL.
7.2.1.2 Refluxing column (optional).
7.2.2 Hot Block Digestion
7.2.2.1 Polycarbonate Bottles, 250 mL capacity with an O-ring seal and screw cap, capable of withstanding temperatures up to
130 °C, the pressure that is developed during the digestion, and resistant to oxidation. Other types of bottles or vials may be used
provided they are capable of withstanding the temperatures and pressures developed during the digestion.
7.3 Filtering Apparatus
7.3.1 Filter Paper or 0.45 micron filter. The paper used must be ash-free, quantitative Type II filter paper, as described in
Specification E832.
7.3.2 Filter (gravity or vacuum).
7.3.3 Volumetric flask, 250 mL.
7.4 Spectrometer—Because of the differences between various m
...