Coal and coke -- Calculation of analyses to different bases

Charbon et coke -- Calculs pour les analyses par rapport à différentes bases

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INTERNATIONAL ISO
STANDARD 1170
Fourth edition
2020-09
Coal and coke — Calculation of
analyses to different bases
Charbon et coke — Calculs pour les analyses par rapport à
différentes bases
Reference number
ISO 1170:2020(E)
ISO 2020
---------------------- Page: 1 ----------------------
ISO 1170:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 1170:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normatives references ................................................................................................................................................................................... 1

3 Terms, definitions and symbols ............................................................................................................................................................ 1

3.1 Terms and definitions ....................................................................................................................................................................... 1

3.2 Symbols ......................................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 2

5 Calculations for coal analyses ................................................................................................................................................................. 2

5.1 General ........................................................................................................................................................................................................... 2

5.2 Procedure .................................................................................................................................................................................................... 2

5.3 Carbon ............................................................................................................................................................................................................ 3

5.4 Hydrogen ...................................................................................................................................................................................................... 3

5.5 Nitrogen ........................................................................................................................................................................................................ 3

5.6 Sulfur ............................................................................................................................................................................................................... 3

5.7 Oxygen ............................................................................................................................................................................................................ 4

5.8 Chlorine ......................................................................................................................................................................................................... 4

5.9 Volatile matter ......................................................................................................................................................................................... 4

5.10 Net calorific value ................................................................................................................................................................................. 5

6 Calculations for coke analyses ............................................................................................................................................................... 5

7 Table for calculation to different bases ........................................................................................................................................ 5

Annex A (informative) Mineral matter ............................................................................................................................................................... 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 1170:2020(E)
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).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

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 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.
iv © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 1170:2020(E)
Coal and coke — Calculation of analyses to different bases
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

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 602, Coal — Determination of mineral matter
3 Terms, definitions and symbols
3.1 Terms and definitions
No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.2 Symbols

The symbols used in the subsequent clauses are as follows, with suffixes (separated by a comma)

“ad” (air-dried), “ar” (as-received), “d” (dry), “daf” (dry, ash-free) or “dmmf” (dry, mineral-matter-free)

where appropriate.
w ash, expressed as percent mass fraction
w carbon mass fraction, expressed as percent
w chlorine mass fraction, expressed as percent
w inorganic chlorine mass fraction, expressed as percent
Cl,inorg
w carbon dioxide mass fraction, expressed as percent

w hydrogen mass fraction, excluding hydrogen in the moisture, but including the hydrogen from

water of hydration in minerals, expressed as percent
w moisture mass fraction, expressed as percent
H O
w water of hydration in the mineral matter mass fraction, expressed as percent
w mineral matter mass fraction, expressed as percent (see Annex A)
w nitrogen mass fraction, expressed as percent
© ISO 2020 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 1170:2020(E)

w oxygen mass fraction, excluding oxygen in the moisture but including the oxygen from water

of hydration in minerals, expressed as percent
w organic sulfur mass fraction, expressed as percent
S,o
w pyritic sulfur mass fraction, expressed as percent
S,p
w sulfate sulfur mass fraction, expressed as percent
S,s
w total sulfur mass fraction, expressed as percent
S,T
w volatile matter mass fraction, expressed as percent

F national correction factor for the estimation of the inorganic chlorine mass fraction

F national correction factor for the estimation of water of hydration

F national correction factor for the estimation of the mineral matter (see Annex A)

4 Principle

In order to convert an analytical result expressed on one basis to another basis, it is multiplied by a factor

calculated from the appropriate formulae (see Table 1) after insertion of the requisite numerical values.

5 Calculations for coal analyses
5.1 General

In International Standards covering the analysis of coal, it is generally specified that the determination

shall be carried out on an air-dried test sample. However, in making use of these analyses, it is

sometimes necessary to express or report the results on some other basis. The bases in common use

are “air-dried”, “as-received”, “dry”, “dry, ash-free”, and “dry, mineral-matter-free”.

5.2 Procedure

Any analytical value (except net calorific value) on a particular basis may be converted to any other

basis by multiplying it by the appropriate factor calculated from the formulae given in Table 1, after

insertion of the requisite numerical values for the symbols (for determination of moisture, see ISO 589,

ISO 5068-1, ISO 5068-2 or ISO 11722 (as appropriate); for ash, see ISO 1171).

However, in some determinations, there is a direct involvement of the mineral matter and, in these

cases, it is essential to apply a correction to the air-dried result prior to its calculation to the dry,

mineral-matter-free basis. This correction is dependent on the nature, as well as the quantity, of the

mineral matter present. The mineral matter is determined us
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 1170
ISO/TC 27/SC 5
Coal and coke — Calculation of
Secretariat: SA
analyses to different bases
Voting begins on:
2020­06­17
Charbon et coke — Calculs pour les analyses par rapport à
différentes bases
Voting terminates on:
2020­08­12
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 1170:2020(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. ISO 2020
---------------------- Page: 1 ----------------------
ISO/FDIS 1170:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© 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
CP 401 • Ch. de Blandonnet 8
CH­1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2020 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 1170:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normatives references ................................................................................................................................................................................... 1

3 Terms, definitions and symbols ............................................................................................................................................................ 1

3.1 Terms and definitions ....................................................................................................................................................................... 1

3.2 Symbols ......................................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 2

5 Calculations for coal analyses ................................................................................................................................................................. 2

5.1 General ........................................................................................................................................................................................................... 2

5.2 Procedure .................................................................................................................................................................................................... 2

5.3 Carbon ............................................................................................................................................................................................................ 3

5.4 Hydrogen ...................................................................................................................................................................................................... 3

5.5 Nitrogen ........................................................................................................................................................................................................ 3

5.6 Sulfur ............................................................................................................................................................................................................... 3

5.7 Oxygen ............................................................................................................................................................................................................ 3

5.8 Chlorine ......................................................................................................................................................................................................... 4

5.9 Volatile matter ......................................................................................................................................................................................... 4

5.10 Net calorific value ................................................................................................................................................................................. 4

6 Calculations for coke analyses ............................................................................................................................................................... 5

7 Table for calculation to different bases ........................................................................................................................................ 5

Annex A (informative) Mineral matter ............................................................................................................................................................... 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2020 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/FDIS 1170:2020(E)
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 non­governmental, 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. 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. www .iso .org/ patents

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

The committee responsible for this document is ISO/TC 27, Solid mineral fuels, 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.
iv © ISO 2020 – All rights reserved
---------------------- Page: 4 ----------------------
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 1170:2020(E)
Coal and coke — Calculation of analyses to different bases
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

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 602, Coal — Determination of mineral matter
3 Terms, definitions and symbols
3.1 Terms and definitions
No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.2 Symbols

The symbols used in the subsequent clauses are as follows, with suffixes (separated by a comma)

“ad” (air-dried), “ar” (as-received), “d” (dry), “daf” (dry, ash-free) or “dmmf” (dry, mineral-matter-free)

where appropriate.
w ash, expressed as percent mass fraction
w carbon mass fraction, expressed as percent
w chlorine mass fraction, expressed as percent
w inorganic chlorine mass fraction, expressed as percent
Cl,inorg
w carbon dioxide mass fraction, expressed as percent

w hydrogen mass fraction, excluding hydrogen in the moisture, but including the hydrogen from

water of hydration in minerals, expressed as percent
w moisture mass fraction, expressed as percent
H O
w water of hydration in the mineral matter, expressed as percent mass fraction
w mineral matter mass fraction, expressed as percent (see Annex A)
w nitrogen mass fraction, expressed as percent
© ISO 2020 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO/FDIS 1170:2020(E)

w oxygen mass fraction, excluding oxygen in the moisture but including the oxygen from water

of hydration in minerals, expressed as percent
w organic sulfur mass fraction, expressed as percent
S,o
w pyritic sulfur mass fraction, expressed as percent
S,p
w sulfate sulfur mass fraction, expressed as percent
S,s
w total sulfur mass fraction, expressed as percent
S,T
w volatile matter mass fraction, expressed as percent

F national correction factor for the estimation of the inorganic chlorine mass fraction

F national correction factor for the estimation of water of hydration

F national correction factor for the estimation of the mineral matter (see Annex A)

4 Principle

In order to convert an analytical result expressed on one basis to another basis, it is multiplied by a factor

calculated from the appropriate formulae (see Table 1) after insertion of the requisite numerical values.

5 Calculations for coal analyses
5.1 General

In International Standards covering the analysis of coal, it is generally specified that the determination

shall be carried out on an air-dried test sample. However, in making use of these analyses, it is

sometimes necessary to express or report the results on some other basis. The bases in common use

are “air-dried”, “as-received”, “dry”, “dry, ash-free”, and “dry, mineral-matter-free”.

5.2 Procedure

Any analytical value (except net calorific value) on a particular basis may be converted to any other

basis by multiplying it by the appropriate factor calculated from the formulae given in Table 1, after

insertion of the requisite numerical values for the symbols (for determination of moisture, see ISO 589,

ISO 5068­1, ISO 5068­2 or ISO 11722 (as appropriate); for ash, see ISO 1171).
However, in some determinations, there is a direct involveme
...

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