National foreword

This British Standard is the UK implementation of ISO 1170:2020. It supersedes BS ISO 1170:2013, which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee PTI/16, Solid mineral fuels.

A list of organizations represented on this committee can be obtained on request to its committee manager.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2020.

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out 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 organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. 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 patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).

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This document was prepared by Technical Committee ISO/TC 27, Coal and coke, Subcommittee SC 5, Methods of analysis.

This fourth edition cancels and replaces the third edition (ISO 1170:2013), of which it constitutes a minor revision. This edition includes the following changes compared to the previous edition:

updating of referenced documents;
adding Terms and Definitions to form Clause 3 “Terms, Definitions and Symbols”
use of “mass fraction” instead of “content”;
converting Annex A from normative to informative.

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.

1 Scope

This document gives equations that allow analytical data relating to coal and coke to be expressed on the various different bases in common use. Consideration is given to corrections that can be applied to certain determined values for coal prior to their calculation to other bases.

2 Normatives references

3 Terms, definitions and symbols

3.1 Terms and definitions

3.2 Symbols

4 Principle

5 Calculations for coal analyses

5.1 General

5.2 Procedure

5.3 Carbon

5.4 Hydrogen

5.5 Nitrogen

5.6 Sulfur

5.7 Oxygen

5.8 Chlorine

5.9 Volatile matter

5.10 Net calorific value

6 Calculations for coke analyses

7 Table for calculation to different bases

Bibliography

BS ISO 1170:2020

Coal and coke. Calculation of analyses to different bases

Current, Under Review

Published:

30 Sep 2020