ISO 17247-2020 PDF

Full title and description

ISO 17247:2020 — Coal and coke — Ultimate analysis. Establishes a practice for performing the ultimate (elemental/total) analysis of coal and coke to provide a consistent basis for comparison between samples and for reporting results to agreed bases.

Abstract

This International Standard defines the practice for ultimate analysis of coal and coke: determination/reporting of carbon, hydrogen, nitrogen, total sulfur, ash and moisture, with oxygen normally calculated by difference. It is intended for general use by coal and coke industries and testing laboratories to ensure comparable elemental data and reporting conventions.

General information

• Status: Published.
• Publication date: 6 August 2020 (Edition 3, 2020).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 73.040 (Coals).
• Edition / version: Edition 3 (2020).
• Number of pages: 5 pages (official ISO publication length).

Scope

The standard establishes a uniform practice for carrying out the ultimate analysis of coal and coke and for expressing/reporting the results (preferred reporting bases, conversions and conventions). It is applicable across the coal and coke sectors wherever elemental composition (C, H, N, S, O, ash, moisture) is required for quality control, commercial transactions or technical evaluation.

Key topics and requirements

• Parameters covered: carbon, hydrogen, nitrogen, total sulfur, ash and moisture; oxygen normally reported by difference.
• Requirements for sample conditioning and preparation to obtain representative and reproducible results.
• Reference to appropriate test methods (normative/related standards) for individual determinations (e.g., ash and moisture methods and elemental analysis techniques).
• Conventions for reporting results on different bases (as-received, air-dried, dry basis) and formulae for conversions.
• Specification of units, significant figures and rounding conventions for reporting ultimate-analysis data.

Typical use and users

Used by analytical laboratories, coal and coke producers and traders, power stations, steel and metallurgical plants, regulatory bodies and research organizations for fuel characterisation, quality control, commercial specification and process/feedstock evaluation.

Related standards

ISO 17247 is used alongside and references other ISO standards relevant to solid mineral fuels, for example ISO 1171 (ash), ISO 11722 (moisture in certain samples), ISO 1213‑2 (vocabulary for sampling/testing), and various ISO methods for elemental determinations and sulfur analysis; national/adopted versions (e.g., BS ISO 17247:2020, NEN‑ISO 17247:2020) reproduce the International Standard text where adopted.

Keywords

ultimate analysis; coal; coke; carbon; hydrogen; nitrogen; sulfur; oxygen by difference; ash; moisture; ISO 17247:2020; solid mineral fuels; elemental analysis.

FAQ

Q: What is this standard?

A: ISO 17247:2020 is the International Standard titled "Coal and coke — Ultimate analysis" that sets out practice and reporting conventions for elemental (ultimate) analysis of coal and coke.

Q: What does it cover?

A: It covers which elemental/total constituents are included in an ultimate analysis (C, H, N, total S, ash, moisture, with O by difference), requirements for sample preparation/conditioning, references to relevant test methods, and rules for reporting and converting results between bases.

Q: Who typically uses it?

A: Analytical laboratories, coal and coke producers and traders, power generation and metallurgical industries, standards bodies and regulatory agencies that require comparable elemental composition data for quality control, specifications and commercial exchange.

Q: Is it current or superseded?

A: ISO 17247:2020 supersedes ISO 17247:2013 and is the current published edition (Edition 3, 2020). A committee draft for a subsequent revision (ISO/CD 17247) has been published for development, indicating the standard is under periodic review and may be updated in a future edition.

Q: Is it part of a series?

A: It is part of the body of ISO work on solid mineral fuels maintained by ISO/TC 27 (Methods of analysis), SC 5 and is meant to be used in conjunction with other solid-fuel standards (proximate analysis, sampling and specific test methods) to provide full characterisation.

Q: What are the key keywords?

A: Ultimate analysis, elemental analysis, coal, coke, carbon, hydrogen, nitrogen, sulfur, oxygen by difference, ash, moisture, reporting bases, ISO 17247.