ISO 17247:2020

Coal and coke - Ultimate analysis

This document establishes a practice for the ultimate analysis of coal and coke and is intended for general utilization by the coal and coke industries to provide a basis for comparison of coals and cokes.

Charbon et coke — Analyse élémentaire

General Information

• Status: Published
• Publication Date: 05-Aug-2020
• ICS: 73.040 - Coals
• Technical Committee: ISO/TC 27/SC 5 - Methods of analysis
• Drafting Committee: ISO/TC 27/SC 5/WG 2 - Carbon, hydrogen, nitrogen, oxygen and sulfur
• Current Stage: 9060 - Close of review
• Completion Date: 02-Dec-2030

Relations

• Revises: ISO 17247:2013 - Coal - Ultimate analysis
• Effective Date: 23-Apr-2020

Overview

ISO 17247:2020 outlines the ultimate analysis of coal and coke, providing standardized methods for determining their fundamental chemical composition. This third edition improves upon previous versions by updating references, refining test methods, and specifying constants for result calculations. Designed by ISO/TC 27 and its subcommittee SC 5, this international standard supports the coal and coke industries by establishing a uniform basis for comparing different samples through ultimate analysis.

Ultimate analysis refers to the quantification of carbon, hydrogen, nitrogen, sulfur, ash, moisture, and oxygen (calculated by difference) in coal and coke. Accurate and consistent analysis is crucial for quality control, fuel evaluation, and regulatory compliance across global markets.

Key Topics

• Scope and Application
  ISO 17247:2020 applies broadly within the coal and coke sectors, enabling reliable comparison of samples based on their elemental makeup.

• Sample Preparation
  Proper conditioning and preparation of coal/coke samples ensure valid and reproducible results according to the specified test methods.

• Test Methods
  The standard references classical and instrumental techniques for measuring key components:

  • Carbon and Hydrogen: ISO 609, ISO 625, ISO 29541
  • Nitrogen: ISO 29541
  • Total Sulfur: ISO 334, ISO 19579, ISO 20336
  • Ash: ISO 1171
  • Moisture: Various ISO methods depending on coal type and reporting basis

• Expression of Results
  Results may be reported on different bases (e.g., air-dried, as-received, dry) with precise formulae provided for converting between them, including handling of hydrogen and oxygen content related to moisture.

• Test Reporting
  Test reports must detail sample identification, reference to ISO 17247:2020, date of analysis, and method of result expression, promoting traceability and transparency.

• Definitions and Terminology
  Terms align with ISO 1213-2 for consistency in global communication. For example, oxygen content is determined by difference from measured elemental percentages.

Applications

ISO 17247:2020 is essential for:

• Quality Control in Coal and Coke Production
  Ensuring products meet required chemical profiles for combustion and industrial use.

• Comparative Analysis
  Allowing buyers, sellers, and regulators to assess coal and coke quality uniformly.

• Environmental and Compliance Monitoring
  Accurate sulfur and nitrogen content measurement helps manage emissions regulations.

• Research and Development
  Supporting innovation in coal processing, utilization, and alternative fuel formulation.

• Trade and Contracts
  Facilitating clear specifications and reliable product descriptions in international coal and coke markets.

Related Standards

ISO 17247:2020 works alongside multiple complementary ISO standards focused on mineral fuel analysis, including:

• ISO 334 – Determination of total sulfur in solid mineral fuels
• ISO 579 & ISO 589 – Determination of total moisture in coke and hard coal
• ISO 609 & ISO 625 – Carbon and hydrogen determination methods
• ISO 1171 – Ash determination in solid mineral fuels
• ISO 19579 & ISO 20336 – Infrared spectrometry and Coulomb titration methods for sulfur
• ISO 29541 – Instrumental method for total carbon, hydrogen and nitrogen content

Together, these standards provide a comprehensive framework for analyzing and reporting coal and coke properties, ensuring consistency and reliability across global industries.

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Keywords: ISO 17247, ultimate analysis, coal analysis, coke analysis, elemental composition, coal quality, sulfur determination, moisture content, carbon content, hydrogen content, nitrogen analysis, ash analysis, standardized testing, international coal standards.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 17247
Third edition
2020-08
Coal and coke — Ultimate analysis
Charbon et coke — Analyse élémentaire
Reference number
©
ISO 2020
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
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Published in Switzerland
ii © ISO 2020 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Preparation of sample . 2
6 Test methods . 2
7 Expression of results . 2
8 Test report . 4
Annex A (informative) Ultimate analysis example . 5
Foreword
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through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 27, Coal and coke, Subcommittee SC 5,
Methods of analysis.
This third edition cancels and replaces the second edition (ISO 17247:2013), of which it constitutes a
minor revision. This edition includes the following changes compared to the previous edition:
— amending the title and the scope;
— updating of referenced documents;
— updating of the standard test methods used for ultimate analysis in Table 1;
— defining of constants in Table 2.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved

INTERNATIONAL STANDARD ISO 17247:2020(E)
Coal and coke — Ultimate analysis
1 Scope
This document establishes a practice for the ultimate analysis of coal and coke and is intended for
general utilization by the coal and coke industries to provide a basis for comparison of coals and cokes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 334, Solid mineral fuels — Determination of total sulfur — Eschka method
ISO 579, Coke — Determination of total moisture
ISO 589, Hard coal — Determination of total moisture
ISO 609, Solid mineral fuels — Determination of carbo
...