ISO 14404-2

Calculation method of carbon dioxide emission intensity from iron and steel production — Part 2: Steel plant with electric arc furnace (EAF)

This document specifies calculation methods to evaluate the total annual carbon dioxide (CO2) emissions, and the emission factor of CO2 per unit of steel production of the entire steel production process. This document applies to plants that produce mainly carbon steel. It can be used by companies using EAF to manufacture steel. It includes boundary definition, material and energy flow definition, and emission factor of CO2. Besides direct source import to the boundary, upstream and credit concept is applied to exhibit the plant CO2 intensity. This document supports steel producers to establish CO2 emissions attributable to a site. Conversion to energy consumption and to consumption efficiency can be obtained using Annex A.

Méthode de calcul de l'intensité de l'émission de dioxyde de carbone de la production de la fonte et de l'acier — Partie 2: Usine sidérurgique équipée d'un four électrique à arc (FEA)

Le présent document spécifie les méthodes de calcul permettant d'évaluer les émissions totales annuelles de dioxyde de carbone (CO2) et le facteur d'émissions de CO2 par unité d'acier produite sur l'intégralité du processus sidérurgique. Le présent document s'appliquent aux usines produisant essentiellement de l'acier au carbone. Il peut être utilisé par les entreprises qui utilisent un four électrique à arc pour fabriquer de l'acier. Il inclut une définition des périmètres, du flux des matériaux et de l'énergie, ainsi que le facteur d'émissions de CO2. Outre l’importation de sources directes à l’intérieur du périmètre, les concepts d'émissions en amont et contre crédits s'appliquent pour mieux cerner l'intensité de l'émission de CO2 de l'usine. Le présent document aide les producteurs d'acier à déterminer les émissions de CO2 attribuables à un site. La conversion en consommation énergétique et en efficacité de consommation peut être réalisée à l'aide de l'Annexe A.

General Information

• Status: Not Published
• ICS: 13.020.40 - Pollution, pollution control and conservation
• ICS: 77.080.01 - Ferrous metals in general
• Technical Committee: SC 21 - ISO/TC 17/SC 21
• Drafting Committee: SC 21 - ISO/TC 17/SC 21
• Current Stage: 6000 - International Standard under publication
• Completion Date: 17-Aug-2024

Relations

• Revises: ISO 14404-2:2013 - Calculation method of carbon dioxide emission intensity from iron and steel production — Part 2: Steel plant with electric arc furnace (EAF)
• Effective Date: 28-Oct-2023

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 14404-2
ISO/TC 17/SC 21
Calculation method of carbon
Secretariat: JISC
dioxide emission intensity from
Voting begins on:
iron and steel production —
2024-06-21
Part 2:
Voting terminates on:
2024-08-16
Steel plant with electric arc furnace
(EAF)
Méthode de calcul de l'intensité de l'émission de dioxyde de
carbone de la production de la fonte et de l'acier —
Partie 2: Usine sidérurgique équipée d'un four électrique à arc
(FEA)
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
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
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.
Reference number
ISO/FDIS 14404-2:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 14404-2:2024(en)
International
Standard
ISO/FDIS 14404-2
ISO/TC 17/SC 21
Calculation method of carbon
Secretariat: JISC
dioxide emission intensity from
Voting begins on:
iron and steel production —
Part 2:
Voting terminates on:
Steel plant with electric arc
furnace (EAF)
Méthode de calcul de l'intensité de l'émission de dioxyde de
carbone de la production de la fonte et de l'acier —
Partie 2: Usine sidérurgique équipée d'un four électrique à arc (FEA)
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.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 14404-2:2024(en) © ISO 2024

ii
ISO/FDIS 14404-2:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Emissions.1
3.2 Gas fuel .2
3.3 Liquid fuel .2
3.4 Solid fuel .3
3.5 Auxiliary material .3
3.6 Energy carriers .4
3.7 Ferrous containing materials .4
3.8 Alloys .5
3.9 Other imported/exported materials . .5
3.10 Others .5
4 Symbols . 6
5 Principles . 7
5.1 General .7
5.2 Relevance .7
5.3 Completeness .7
5.4 Consistency .7
5.5 Accuracy .7
5.6 Transparency .7
6 Boundary . . 8
6.1 General .8
6.2 Category 2 .8
6.3 Category 3 .9
6.4 Category 4 .9
7 Calculation . 9
7.1 General .9
7.2 Calculation procedure . .9
7.2.1 Data collection of crude steel production .9
7.2.2 Data collection direct and/or upstream CO emission sources .9
7.2.3 Data collection of credit CO emission sources .11
7.2.4 Calculation . 12
Annex A (informative) Calculation of energy consumption and intensity .15
Annex B (informative) Example of template for using different emission factors or emission
sources from Table 4 . 17
Annex C (informative) Example of CO emission and intensity calculations for steel plant —
Data of a steel plant . 19
Annex D (informative) Decarbonization strategies and its impact on CO calculation method .22
Bibliography .23

iii
ISO/FDIS 14404-2:2024(en)
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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 17, Steel, Subcommittee SC 21, Environment
related to climate change in the iron and steel industry.
This second edition cancels and replaces the first edition (ISO 14404-2:2013), which has been technically
revised.
The main changes are as follows:
— revision of Introduction, Terms and Definitions, and default emission factors;
— addition and revision of some emissions sources;
— clarification of the difference between "Boundary" and "Site boundary";
— addition a new informative annex, Annex D on “Decarbonization strategies and its impact in CO
Calculation Method” to give guidance on future relevant emission source categories as new materials
and processes become widely applicable at industrial level.
A list of all parts in the ISO 14404 series can be found on the ISO website.
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.
...

ISO/FDIS 14404-2:2024(E)
ISO/TC 17/SC 21/AHG 1
Secretariat: JISC
Date: 2024-05-2206-07
Calculation method of carbon dioxide emission intensity from iron
and steel production — —
Part 2:
Steel plant with electric arc furnace (EAF)

Méthode de calcul de l'intensité de l'émission de dioxyde de carbone de la production de la fonte et de l'acier —
Partie 2: Usine sidérurgique équipée d'un four électrique à arc (FEA)
FDIS stage
ISO/FDIS 14404-2:2024(Een)
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
EmailE-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii
ii
ISO/FDIS 14404-2:2024(Een)
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Emissions . 1
3.2 Gas fuel. 2
3.3 Liquid fuel . 2
3.4 Solid fuel . 3
3.5 Auxiliary material . 3
3.6 Energy carriers . 5
3.7 Ferrous containing materials . 5
3.8 Alloys . 6
3.9 Other imported/exported materials . 6
3.10 Others . 6
4 Symbols . 8
5 Principles . 8
5.1 General. 8
5.2 Relevance . 8
5.3 Completeness . 8
5.4 Consistency . 8
5.5 Accuracy . 9
5.6 Transparency . 9
6 Boundary . 9
6.1 General. 9
6.2 Category 2 . 11
6.3 Category 3 . 11
6.4 Category 4 . 12
7 Calculation . 12
7.1 General. 12
7.2 Calculation procedure . 12
7.2.1 Data collection of crude steel production . 12
7.2.2 Data collection direct and/or upstream CO emission sources . 12
7.2.3 Data collection of credit CO emission sources . 14
7.2.4 Calculation . 16
Annex A (informative) Calculation of energy consumption and intensity . 18
Annex B (informative) Example of template for using different emission factors or emission
sources from Table 4 . 20
Annex C (informative) Example of CO emission and intensity calculations for steel plant —
Data of a steel plant . 22
Annex D (informative) Decarbonization strategies and its impact on CO calculation method . 26
Bibliography . 27
iii
iii
ISO/FDIS 14404-2:2024(Een)
Forword . 4
Introduction . 5
1 Scope . 1
2 Terms and definitions . 1
2.1 Emissions . 1
2.2 Gas fuel . 2
2.3 Liquid fuel . 2
2.4 Solid fuel. 2
2.5 Auxiliary material . 3
2.6 Energy carriers . 4
2.7 Ferrous containing materials . 4
2.8 Alloys . 4
2.9 Product and by-product . 5
2.10 Others . 5
3 Symbols . 6
4 Principles . 6
4.1 General . 6
4.2 Relevance . 6
4.3 Completeness . 6
4.4 Consistency . 7
4.5 Accuracy . 7
4.6 Transparency . 7
5 Definition of boundary . 7
5.1 General . 7
5.2 Category 1 . 8
5.3 Category 2 . 8
5.4 Category 3 . 9
5.5 Category 4 . 9
6 Calculation . 9
6.1 General . 9
6.2 Calculation procedure . 9
Annex A (informative) Calculation of energy consumption and intensity . 15
Annex B (informative) An example of template for using different emission factors or emission
sources from Table 4 . 16
Annex C (informative) An example of CO emission and intensity calculations for steel plant . 18
iv
iv
ISO/FDIS 14404-2:2024(Een)
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).
ISO draws attention to the possibili
...