ISO/TR 6306:1989

TECHNICAL ISO
TR 6306
REPORT
First edition
1989-06-15
Chemical analysis of steel - Order of listing
elements
Analyse chimigue des aciers - Ordre de report des &ments
Reference number
ISO/TR 6306 : 1989 (EI
ISWT-R 6306 :1989 IE)
Foreword
ISO (the international Organization for Standardization) is a woridwide federation of
national Standards bodies (ISO member bodies). The work sf preparing international
Standards is normaiiy carried out through ISO technical committees. Esch member
body interested in a subject for which a technical committee has been estabiished has
the right to be represented on that committee. International organizations, govern-
mental and non-governmentai, in liaison with ISO, also take part in the work. ISO
coiiaborates cioseiy with the international Electrotechnical Commission (IEC) on all
matters of eiectrotechnical standardization.
The main task of ISO technicai committees is to prepare international Standards. In
exceptionai circumstances a technicai committee may propose the publication of a
technicai report of one of the foliowing types:
whe n the necessary support within the techni cal committee cannot be
- tYPe 1,
7s;
obtained fo r the pubiication of an International Standard, despite repeated effor
-
the subject is still under technical development requiring wider
when
tYPe 2,
exposure;
-
type 3, when a technical committee has coiiected data of a different kind from
that which is normaiiy published as an International Standard (“state of the art”, for
exampie).
Technicai reports are accepted for pubiication directly by ISO Councij. Technical
reports of types 1 and 2 are subject to review within three years of publication, to
decide whether they tan be transformed into International Standards. Technical
reports of type 3 do not necessariiy have to be reviewed until the data they provide are
considered to be no ionger vaiid or useful.
lSO/TR 6306, which is a technical report sf type 3, was prepared by Technical
Committee iSO/TC 17, See/.
0 ISO 1989
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronie or mechanical, including photocopying and microfiim, without Permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-121 1 Geneve 20 e Switzerland
Printed in Switzerland
ii
ISO/TR 6306: 1989 (EI
Introduction
The sequence in which elements are iisted in steel specifications and analysis reports
has never been standardized and varies considerably between different organizations.
Although this has always been a potential Source of confusion, the tost and temporary
inconvenience of standardizing the Order has not been considered worthwhile.
The modern tende
...