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CEN

prEN ISO 643

(Main)

Steels - Micrographic determination of the apparent grain size (ISO/DIS 643:2023)

Steels - Micrographic determination of the apparent grain size (ISO/DIS 643:2023)

Stahl - Mikrophotographische Bestimmung der erkennbaren Korngröße (ISO/DIS 643:2023)

Aciers - Détermination micrographique de la grosseur de grain apparente (ISO/DIS 643:2023)

Jekla - Mikrografsko določevanje navidezne velikosti kristalnih zrn (ISO/DIS 643:2023)

General Information

Status
Not Published
Publication Date
05-Jan-2025
ICS
77.040.99 - Other methods of testing of metals
Technical Committee
ECISS/TC 101 - Test methods for steel (other than chemical analysis)
Drafting Committee
ECISS/TC 101 - Test methods for steel (other than chemical analysis)
Current Stage
4599 - Dispatch of FV draft to CMC - Finalization for Vote
Start Date
03-May-2024
Completion Date
03-May-2024
Ref Project
oSIST prEN ISO 643:2023 - Steels - Micrographic determination of the apparent grain size (ISO/DIS 643:2023)

Relations

Revises
EN ISO 643:2020 - Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected version 2023-11)
Effective Date
19-Jan-2023

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SLOVENSKI STANDARD
oSIST prEN ISO 643:2023
01-september-2023
Nadomešča:
SIST EN ISO 643:2020
Jekla - Mikrografsko določevanje navidezne velikosti kristalnih zrn (ISO/DIS
643:2023)
Steels - Micrographic determination of the apparent grain size (ISO/DIS 643:2023)
Stahl - Mikrophotographische Bestimmung der erkennbaren Korngröße (ISO/DIS
643:2023)
Aciers - Détermination micrographique de la grosseur de grain apparente (ISO/DIS
643:2023)
Ta slovenski standard je istoveten z: prEN ISO 643
ICS:
77.040.99 Druge metode za Other methods of testing of
preskušanje kovin metals
77.080.20 Jekla Steels
oSIST prEN ISO 643:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 643:2023

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oSIST prEN ISO 643:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 643
ISO/TC 17/SC 7 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2023-07-17 2023-10-09
Steels — Micrographic determination of the apparent grain
size
Aciers — Détermination micrographique de la grosseur de grain apparente
ICS: 77.040.99
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 643:2023(E)
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 SUPPORTING DOCUMENTATION. © ISO 2023

---------------------- Page: 3 ----------------------
oSIST prEN ISO 643:2023
ISO/DIS 643:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 643
ISO/TC 17/SC 7 Secretariat: AFNOR
Voting begins on: Voting terminates on:

Steels — Micrographic determination of the apparent grain
size
Aciers — Détermination micrographique de la grosseur de grain apparente
ICS: 77.040.99
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 643:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

---------------------- Page: 4 ----------------------
oSIST prEN ISO 643:2023
ISO/DIS 643:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Grains .
...

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