ISO 8287:2021

INTERNATIONAL ISO
STANDARD 8287
Fourth edition
Magnesium and magnesium alloys —
Unalloyed magnesium — Chemical
composition
Magnésium et alliages de magnésium — Magnésium non allié —
Composition chimique
PROOF/ÉPREUVE
Reference number
ISO 8287:2021(E)
©
ISO 2021

---------------------- Page: 1 ----------------------
ISO 8287:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
ii PROOF/ÉPREUVE © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 8287:2021(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Information to be supplied by the purchaser. 1
5 Designation . 2
6 Manufacture . 2
7 Chemical composition . 2
8 General condition of the product . 3
9 Testing conditions . 3
9.1 Inspection and acceptance. 3
9.2 Batches . 3
10 Testing . 3
11 Rounding of results . 3
12 Declaration of conformity and inspection documents . 3
13 Marking . 3
14 Packing. 4
15 Transportation . 4
16 Storage . 4
17 Quality certificate . 4
18 Complaints . 4
© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii

---------------------- Page: 3 ----------------------
ISO 8287:2021(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 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 79, Light metals and their alloys,
Subcommittee SC 5, Magnesium and alloys of cast or wrought magnesium.
This fourth edition cancels and replaces the third edition (ISO 8287:2011), which has been technically
revised.
The main changes compared with the previous edition are as follows:
a) in the Introduction and Clause 2, EN 12421:1998 has been replaced by EN 12421:2017;
b) four new grades of cast unalloyed magnesium have been added in Table 1, namely ISO Mg99,95C,
ISO Mg99,995A, ISO Mg99,995B and ISO Mg99,995C.
iv PROOF/ÉPREUVE © ISO 2021 – All rights reserved

---------------------- Page: 4 ----------------------
ISO 8287:2021(E)

Introduction
This document classifies commercially available cast unalloyed magnesium into a number of grades
suitable for the applications for which they might be used. The grades listed in this document are
identical to those in EN 12421:2017.
© ISO 2021 – All rights reserved PROOF/ÉPREUVE v

---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 8287:2021(E)
Magnesium and magnesium alloys — Unalloyed
magnesium — Chemica
...