ISO 9042:2024
(Main)Steels — Point counting method for statistically estimating the volume fraction of a constituent with a point grid
Steels — Point counting method for statistically estimating the volume fraction of a constituent with a point grid
This document specifies a point counting method for statistically estimating the volume fraction of a constituent through the microstructure of a steel by means of a point grid. It applies to constituents which are clearly identifiable. By default, counting is performed manually, but can be computer assisted or substituted by validated computer algorithms. NOTE In this document, the word "constituent" can designate a phase as well as a micrographic constituent composed of two or more phases.
Aciers — Méthode d'estimation statistique de la fraction volumique d'un constituant à l'aide de grilles de points
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International
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ISO 9042
Second edition
Steels — Point counting method for
2024-04
statistically estimating the volume
fraction of a constituent with a
point grid
Aciers — Méthode d'estimation statistique de la fraction
volumique d'un constituant à l'aide de grilles de points
Reference number
ISO 9042:2024(en) © ISO 2024
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ISO 9042:2024(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.
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2024 – All rights reserved
ii
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ISO 9042:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 1
5 Principle . 2
6 Apparatus . 2
6.1 Grid.2
6.2 Means of observation . .3
7 Sample . 3
7.1 Sampling and number of samples .3
7.2 Preparation of samples .3
8 Procedure . 4
8.1 Selection of the grid .4
8.2 Magnification selection .4
8.3 Selection of the number of observed fields .4
8.4 Array of the fields .5
8.5 Examination and estimation of the fields .
...
FINAL DRAFT
International
Standard
ISO/FDIS 9042
ISO/TC 17/SC 7
Steels — Point counting method for
Secretariat: AFNOR
statistically estimating the volume
Voting begins on:
fraction of a constituent with a
2024-01-23
point grid
Voting terminates on:
2024-03-19
Aciers — Méthode d'estimation statistique de la fraction
volumique d'un constituant à l'aide de grilles de points
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
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INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
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MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 9042:2024(en) © ISO 2024
---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/FDIS 9042:2024(en)
International
Standard
ISO/FDIS 9042
ISO/TC 17/SC 7
Steels — Point counting method for
Secretariat: AFNOR
statistically estimating the volume
Voting begins on:
fraction of a constituent with a
point grid
Voting terminates on:
Aciers — Méthode d'estimation statistique de la fraction
volumique d'un constituant à l'aide de grilles de points
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
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: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 9042:2024(en) © ISO 2024
© ISO 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO/FDIS 9042:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 1
5 Principle . 2
6 Apparatus . 2
6.1 Grid.2
6.2 Means of observation . .3
7 Sample . 3
7.1 Sampli
...
Style Definition
ISO/FDIS 9042:2023(E)
...
Formatted: Font: Bold, French (Switzerland)
ISO/TC 17/SC 7
Formatted: zzCover large
Secretariat: AFNOR
Formatted: Left: 1.9 cm, Right: 1.9 cm, Bottom: 1 cm,
Gutter: 0 cm, Section start: New page, Header distance
from edge: 1.27 cm, Footer distance from edge: 1.27
Date: 20232024-01-09
cm
Formatted: French (Switzerland)
Formatted
...
Formatted: Cover Title_A1
Steels — Point counting method for statistically estimating the
volume fraction of a constituent with a point grid
Aciers — Méthode d'estimation statistique de la fraction volumique d'un constituant à l'aide de grilles de
Formatted
...
points
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Formatted: Font: 11 pt
© ISO 2023 – All rights reserved
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ISO/FDIS 9042:20232024(E)
Formatted: Font: 11 pt, Bold
Formatted: HeaderCentered, Space After: 0 pt, Line
spacing: single
© ISO 2023 2024 Formatted: Font: 11 pt, Bold
Formatted: Default Paragraph Font
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
Formatted: French (Switzerland)
EmailE-mail: copyright@iso.org
Formatted: French (Switzerland)
Website: www.iso.orgwww.iso.org
Formatted: French (Switzerland)
Published in Switzerland
Formatted: French (Switzerland)
Formatted: English (United Kingdom)
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterPageRomanNumber, Space After: 0
pt, Line spacing: single
Formatted: Font: 11 pt
ii © ISO 2023 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO/FDIS 9042:20232024(E)
Formatted: Font: 11 pt, Bold
Formatted: HeaderCentered, Left, Space After: 0 pt,
Line spacing: single
Contents
Formatted: Font: 11 pt, Bold
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 1
5 Principle . 2
6 Apparatus . 2
6.1 Grid . 2
6.2 Means of observation . 4
7 Sample . 4
7.1 Sampling and number of samples . 4
7.2 Preparation of samples . 4
8 Procedure . 5
8.1 Selection of the grid. 5
8.2 Magnification selection . 5
8.3 Selection of the number of observed fields . 5
8.4 Array of the fields .
...
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