Direct reduced iron - Determination of apparent density and water absorption of hot briquetted iron (HBI)

This International Standard specifies a method of determining the apparent density and water
absorption of direct reduced iron by immersion in water.
This International Standard is applicable to hot briquetted iron (HBI).

Minerais de fer préréduits - Détermination de la masse volumique apparente et de l'absorption d'eau du fer briqueté à chaud

Neposredno reducirano železo - Ugotavljanje gostote in absorpcije vode v vroče briketiranem železu

Ta mednarodni standard navaja metodo za ugotavljanje gostote in absorpcije vode v neposrednem reduciranem železu s potapljanjem v vodo.
Ta mednarodni standard se uporablja za vroče briketirano železo (HBI).

General Information

Status
Published
Publication Date
28-Mar-2016
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Mar-2016
Due Date
29-May-2016
Completion Date
29-Mar-2016

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INTERNATIONAL ISO
STANDARD 15968
Second edition
2016-02-01
Direct reduced iron — Determination
of apparent density and water
absorption of hot briquetted iron (HBI)
Minerais de fer préréduits — Détermination de la masse volumique
apparente et de l’absorption d’eau du fer briqueté à chaud
Reference number
ISO 15968:2016(E)
ISO 2016
---------------------- Page: 1 ----------------------
ISO 15968:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 15968:2016(E)
Contents Page

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

Introduction ..................................................................................................................................................................................................................................v

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

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Sample, sample preparation and preparation of test portions ........................................................................... 1

5.1 Sampling and sample preparation ......................................................................................................................................... 1

5.2 Preparation of test portions ........................................................................................................................................................ 1

6 Apparatus ..................................................................................................................................................................................................................... 2

6.1 General ........................................................................................................................................................................................................... 2

7 Procedure..................................................................................................................................................................................................................... 3

7.1 Number of determinations for the test .............................................................................................................................. 3

7.2 Density determination ..................................................................................................................................................................... 3

8 Expression of results ........................................................................................................................................................................................ 3

8.1 Calculation of the apparent density (ρ ) .......................................................................................................................... 3

8.2 Calculation of the water absorption (a) ............................................................................................................................ 4

8.3 Repeatability and acceptance of test results ................................................................................................................. 4

9 Test report ................................................................................................................................................................................................................... 4

7 Verification ................................................................................................................................................................................................................. 5

Annex A (normative) Flowsheet of the procedure for the acceptance of test results ......................................7

© ISO 2016 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 15968:2016(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 on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 102, Iron ore and direct reduced iron,

Subcommittee SC 3, Physical testing.

This second edition cancels and replaces the first edition (ISO 15968:2000), which has been technically

revised with the following changes:
— to homogenize its structure and wording with other physical test standards;
— to contemplate the outcomes of the studies on mass definition.
iv © ISO 2016 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 15968:2016(E)
Introduction

This test method has been developed to determine the apparent density and water absorption of direct

reduced iron in the form of hot briquetted iron (HBI).

Results of this test have to be considered in conjunction with other tests used to evaluate the quality of

products from direct reduction processes.

This International Standard can be used to provide test results as part of a production quality control

system, as a basis of a contract or as part of a research project.

The apparent density measured in this test can be used to certify that the HBI meets the apparent

density requirements of the International Maritime Organization (IMO) Code of Safe Practice for Solid

Bulk Cargoes.
© ISO 2016 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 15968:2016(E)
Direct reduced iron — Determination of apparent density
and water absorption of hot briquetted iron (HBI)

CAUTION — This International Standard may involve hazardous operations and equipment. This

International Standard does not purport to address all of the safety issues associated with its use.

It is the responsibility of the user of this International Standard to establish appropriate safety

and health practices and determine the applicability of regulatory limitations prior to its use.

1 Scope

This International Standard specifies a method of determining the apparent density and water

absorption of direct reduced iron by immersion in water.
This International Standard is applicable to hot briquetted iron (HBI).
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth

ISO 3310-2, Test
...

SLOVENSKI STANDARD
SIST ISO 15968:2016
01-maj-2016
1DGRPHãþD
SIST ISO 15968:2002
1HSRVUHGQRUHGXFLUDQRåHOH]R8JRWDYOMDQMHJRVWRWHLQDEVRUSFLMHYRGHYYURþH
EULNHWLUDQHPåHOH]X

Direct reduced iron - Determination of apparent density and water absorption of hot

briquetted iron (HBI)
Minerais de fer préréduits - Détermination de la masse volumique apparente et de
l'absorption d'eau du fer briqueté à chaud
Ta slovenski standard je istoveten z: ISO 15968:2016
ICS:
73.060.10 Železove rude Iron ores
SIST ISO 15968:2016 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ISO 15968:2016
---------------------- Page: 2 ----------------------
SIST ISO 15968:2016
INTERNATIONAL ISO
STANDARD 15968
Second edition
2016-02-01
Direct reduced iron — Determination
of apparent density and water
absorption of hot briquetted iron (HBI)
Minerais de fer préréduits — Détermination de la masse volumique
apparente et de l’absorption d’eau du fer briqueté à chaud
Reference number
ISO 15968:2016(E)
ISO 2016
---------------------- Page: 3 ----------------------
SIST ISO 15968:2016
ISO 15968:2016(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland

All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2016 – All rights reserved
---------------------- Page: 4 ----------------------
SIST ISO 15968:2016
ISO 15968:2016(E)
Contents Page

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

Introduction ..................................................................................................................................................................................................................................v

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

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Sample, sample preparation and preparation of test portions ........................................................................... 1

5.1 Sampling and sample preparation ......................................................................................................................................... 1

5.2 Preparation of test portions ........................................................................................................................................................ 1

6 Apparatus ..................................................................................................................................................................................................................... 2

6.1 General ........................................................................................................................................................................................................... 2

7 Procedure..................................................................................................................................................................................................................... 3

7.1 Number of determinations for the test .............................................................................................................................. 3

7.2 Density determination ..................................................................................................................................................................... 3

8 Expression of results ........................................................................................................................................................................................ 3

8.1 Calculation of the apparent density (ρ ) .......................................................................................................................... 3

8.2 Calculation of the water absorption (a) ............................................................................................................................ 4

8.3 Repeatability and acceptance of test results ................................................................................................................. 4

9 Test report ................................................................................................................................................................................................................... 4

7 Verification ................................................................................................................................................................................................................. 5

Annex A (normative) Flowsheet of the procedure for the acceptance of test results ......................................7

© ISO 2016 – All rights reserved iii
---------------------- Page: 5 ----------------------
SIST ISO 15968:2016
ISO 15968:2016(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 on the meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical

Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 102, Iron ore and direct reduced iron,

Subcommittee SC 3, Physical testing.

This second edition cancels and replaces the first edition (ISO 15968:2000), which has been technically

revised with the following changes:
— to homogenize its structure and wording with other physical test standards;
— to contemplate the outcomes of the studies on mass definition.
iv © ISO 2016 – All rights reserved
---------------------- Page: 6 ----------------------
SIST ISO 15968:2016
ISO 15968:2016(E)
Introduction

This test method has been developed to determine the apparent density and water absorption of direct

reduced iron in the form of hot briquetted iron (HBI).

Results of this test have to be considered in conjunction with other tests used to evaluate the quality of

products from direct reduction processes.

This International Standard can be used to provide test results as part of a production quality control

system, as a basis of a contract or as part of a research project.

The apparent density measured in this test can be used to certify that the HBI meets the apparent

density requirements of the International Maritime Organization (IMO) Code of Safe Practice for Solid

Bulk Cargoes.
© ISO 2016 – All rights reserved v
---------------------- Page: 7 ----------------------
SIST ISO 15968:2016
---------------------- Page: 8 ----------------------
SIST ISO 15968:2016
INTERNATIONAL STANDARD ISO 15968:2016(E)
Direct reduced iron — Determination of apparent density
and water absorption of hot briquetted iron (HBI)

CAUTION — This International Standard may involve hazardous operations and equipment. This

International Standard does not purport to address all of the safety issues associated with its use.

It is the responsibility of the user of this International Standard to establish appropriate safety

and health practices and determine the applicability of regulatory limitations prior to its use.

1 Scope

This International Standard specifies a method of determining the apparent density and water

absorption of direct reduced iron by immersion in water.
This Intern
...

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