ISO 8371:2024
(Main)Iron ores for blast furnace feedstocks — Determination of the decrepitation index
Iron ores for blast furnace feedstocks — Determination of the decrepitation index
This document specifies a method to provide a relative measure for evaluating the degree of size degradation caused by rapid heating of iron ores. It specifies the determination of the decrepitation index. This document is applicable to lump ores for blast furnace feedstocks.
Minerais de fer pour charges de hauts fourneaux — Détermination de l'indice de décrépitation
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International
Standard
ISO 8371
Fourth edition
Iron ores for blast furnace
2024-03
feedstocks — Determination of the
decrepitation index
Minerais de fer pour charges de hauts fourneaux —
Détermination de l'indice de décrépitation
Reference number
ISO 8371:2024(en) © ISO 2024
---------------------- Page: 1 ----------------------
ISO 8371:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
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
© ISO 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO 8371:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Sampling, sample preparation and preparation of test portions . 1
5.1 Sampling and sample preparation .1
5.2 Preparation of test portions .2
6 Apparatus . 2
7 Procedure . 2
7.1 Number of determinations for the test .2
7.2 Heating.2
7.3 Sieving .3
8 Expression of results . 3
9 Test report . 3
10 Verification . 4
Bibliography .
...
International
Standard
ISO 8371
Fourth edition
Iron ores for blast furnace
feedstocks — Determination of the
decrepitation index
Minerais de fer pour charges de hauts fourneaux —
Détermination de l'indice de décrépitation
PROOF/ÉPREUVE
Reference number
ISO 8371:2024(en) © ISO 2024
---------------------- Page: 1 ----------------------
ISO 8371:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
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
PROOF/ÉPREUVE
© ISO 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO 8371:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Sampling, sample preparation and preparation of test portions . 1
5.1 Sampling and sample preparation .1
5.2 Preparation of test portions .2
6 Apparatus . 2
7 Procedure . 2
7.1 Number of determinations for the test .2
7.2 Heating.2
7.3 Sieving .3
8 Expression of results . 3
9 Test report . 3
10 Verification . 4
Bibliography .
...
ISO/DISPRF 8371.2:2023(E)
2023-11-17
ISO/TC 102/SC 3
Secretariat: ABNT
Date: 2024-01-05
Iron ores for blast furnace feedstocks — Determination of the
decrepitation index
Minerais de fer pour charges de hauts fourneaux — Détermination de l'indice de décrépitation
PROOF
---------------------- Page: 1 ----------------------
ISO/DISPRF 8371.2:2023:2024(E)
© ISO 20232024
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'sISO’s member body in the country of the requester.
ISO copyright office
Case postale 56 • CP 401 • Ch. de Blandonnet 8
CH-12111214 Vernier, Geneva 20
Tel.Phone: + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail: copyright@iso.org
Web www.iso.org
Website: www.iso.org
Published in Switzerland.
ii © ISO 2023 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO/DISPRF 8371.2:2023:2024(E)
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Sampling, sample preparation and preparation of test portions . 1
5.1 Sampling and sample preparation . 1
5.2 Preparation of test portions . 2
6 Apparatus . 2
7 Procedure . 2
7.1 Number of determinations for the test . 2
7.2 Heating . 2
7.3 Sieving . 3
8 Expression of results . 3
9 Test report . 3
10 Verification . 4
Bibliography . 5
Foreword . iv
Introduction . v
1 Scope .
...
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