SIST EN ISO 10280:2025
(Main)Steel and iron - Determination of titanium content - Diantipyrylmethane spectrometric method (ISO 10280:2025)
Steel and iron - Determination of titanium content - Diantipyrylmethane spectrometric method (ISO 10280:2025)
This document specifies a diantipyrylmethane spectrophotometric method for the determination of titanium in steel and iron.
The method is applicable to titanium contents between 0,002 % (mass fraction) and 0,80 % (mass fraction).
Stahl und Eisen - Bestimmung von Titan - Spektralphotometrisches Verfahren mit Diantipyrylmethan (ISO 10280:2025)
Dieses Dokument beschreibt ein Verfahren zur Bestimmung von Titan in Stahl und Eisen mit Hilfe der Spektralphotometrie unter Verwendung von Diantipyrylmethan.
Das Verfahren ist für Titangehalte zwischen 0,002 (Massenanteil) und 0,8% {Massenanteil) anwendbar.
Aciers et fontes - Dosage du titane - Méthode spectrophotométrique au diantipyrylméthane (ISO 10280:2025)
Le présent document spécifie une méthode spectrophotométrique au diantipyrylméthane pour la détermination du titane dans les aciers et les fontes.
La méthode est applicable aux teneurs en titane comprises entre 0,002 % (en masse) et 0,80 % (en masse).
Jeklo in železo - Določanje titana - Spektrofotometrijska metoda z diantipirilmetanom (ISO 10280:2025)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2025
Jeklo in železo - Določanje titana - Spektrofotometrijska metoda z
diantipirilmetanom (ISO 10280:2025)
Steel and iron - Determination of titanium content - Diantipyrylmethane spectrometric
method (ISO 10280:2025)
Stahl und Eisen - Bestimmung von Titan - Spektralphotometrisches Verfahren mit
Diantipyrylmethan (ISO 10280:2025)
Aciers et fontes - Dosage du titane - Méthode spectrophotométrique au
diantipyrylméthane (ISO 10280:2025)
Ta slovenski standard je istoveten z: EN ISO 10280:2025
ICS:
77.080.01 Železne kovine na splošno Ferrous metals in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 10280
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2025
EUROPÄISCHE NORM
ICS 77.080.01 Supersedes EN ISO 10280:1995
English Version
Steel and iron - Determination of titanium content -
Diantipyrylmethane spectrophotometric method (ISO
10280:2025)
Aciers et fontes - Détermination du titane - Méthode Stahl und Eisen - Bestimmung von Titan -
spectrophotométrique au diantipyrylméthane (ISO Spektralphotometrisches Verfahren mit
10280:2025) Diantipyrylmethan (ISO 10280:2025)
This European Standard was approved by CEN on 21 September 2025.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10280:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 10280:2025) has been prepared by Technical Committee ISO/TC 17 "Steel" in
collaboration with Technical Committee CEN/TC 459/SC 2 “Methods of chemical analysis for iron and
steel” the secretariat of which is held by SIS.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by March 2026, and conflicting national standards shall
be withdrawn at the latest by March 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 10280:1995.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 10280:2025 has been approved by CEN as EN ISO 10280:2025 without any modification.
International
Standard
ISO 10280
Second edition
Steel and iron — Determination
2025-09
of titanium content —
Diantipyrylmethane
spectrophotometric method
Aciers et fontes — Détermination du titane — Méthode
spectrophotométrique au diantipyrylméthane
Reference number
ISO 10280:2025(en) © ISO 2025
ISO 10280:2025(en)
© ISO 2025
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
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or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 10280:2025(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 3
7 Sampling and preparation of the test samples . 3
8 Procedure . 3
8.1 Test portion .3
8.2 Blank test .3
8.3 Determination .3
8.3.1 Dissolution of the test portion .3
8.3.2 Treatment of insoluble residue .4
8.3.3 Colour development .4
8.3.4 Spectrophotometric measurements .5
8.4 Establishment of the calibration curves .5
8.4.1 Preparation of the calibration solutions .5
8.4.2 Spectrophotometric measurements .6
8.4.3 Calibration curves .6
9 Expression of results . 7
9.1 Method of calculation .7
9.2 Precision . . .7
10 Test report . 8
Annex A (informative) Additional information on the international precision tests. 9
Annex B (informative) Graphical representation of precision data .11
Bibliography .12
iii
ISO 10280:2025(en)
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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 17, Steel, Subcommittee SC 1, Methods of
determination of chemical composition, in collaboration with the European Committee for Standardization
(CEN) Technical Committee CEN/TC 459/SC 2, Methods of chemical analysis for iron and steel, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 10280:1991), which has been technically
revised.
The main changes are as follows:
— Clause 2, Normative references, has updated;
— the mandatory Clause 3, Terms and definitions has been added and subsequent clauses have been
renumbered;
— precision data has been re-evaluated.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete
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