CEN/TR 10261:2023

SLOVENSKI STANDARD
01-julij-2023
Železo in jeklo - Evropski standardi za določevanje kemijske sestave
Iron and steel - European standards for the determination of chemical composition
Eisen und Stahl - Europäische Normen für die Bestimmung der chemischen
Zusammensetzung
Aciers et fontes - Normes européennes pour la détermination de la composition chimique
Ta slovenski standard je istoveten z: CEN/TR 10261:2023
ICS:
77.040.30 Kemijska analiza kovin Chemical analysis of metals
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.

CEN/TR 10261
TECHNICAL REPORT
RAPPORT TECHNIQUE
April 2023
TECHNISCHER REPORT
ICS 77.040.30; 77.140.01 Supersedes CEN/TR 10261:2018
English Version
Iron and steel - European standards for the determination
of chemical composition
Aciers et fontes - Normes européennes pour la Eisen und Stahl - Europäische Normen für die
détermination de la composition chimique Bestimmung der chemischen Zusammensetzung

This Technical Report was approved by CEN on 17 April 2023. It has been drawn up by the Technical Committee CEN/TC 459/SC
2.
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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 10261:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 European Standards for the determination of the chemical composition of steels and
irons . 6
4.1 Mono-elemental methods . 6
4.2 Multi-elemental methods . 8
5 Range of application and principle of the methods . 9
5.1 Mono-elemental methods . 9
5.2 Multi-elemental methods . 25
Annex A (informative) List of other European Standards and CEN Technical Reports applicable
for the determination of the chemical composition of ferrous materials . 29
Annex B (informative) List of withdrawn Euronorms and of the corresponding replacement
European standards . 30
Annex C (informative) Graphical representation of the scope of methods described in this
technical report . 33
Annex D (informative) Trilingual key of the abbreviations used in the figures given in Annex C
.......................................................................................................................................................................... 36
European foreword
This document (CEN/TR 10261:2023) has been prepared by Technical Committee CEN/TC 459 “ECISS –
European Committee for Iron and Steel Standardization” , the secretariat of which is held by AFNOR.
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 CEN/TR 10261:2018.
In comparison with the previous edition, the following modifications have been made:
— Numbering of sub-paragraphs in Clause 4;
— In 3.1, addition of a Note;
— in 4.1, for calcium, reference of EN 10177 updated;
— in 4.1, for carbon, reference of EN ISO 15349-2 updated;
— in 4.1, for chromium, reference of CEN/TR 10367 updated;
— in 4.1, for cobalt, reference of EN ISO 11652 added;
— in 4.1, for copper, reference modified;
— in 4.1, for lead, reference of EN 10181 updated;
— in 4.1, for nickel, reference of EN 10136 updated;
— in 4.1, for nitrogen, reference of EN ISO 4945 updated;
— in 4.1, for silicon, reference of EN ISO 439 updated;
— in 4.1, for vanadium, reference of EN ISO 4947 updated;
— in 4.1, for vanadium, reference of EN ISO 9647 added;
— 5.1.4, information on EN 10177 revised;
— 5.1.6, reference of CEN/TR 10367 updated;
— 5.1.7, reference of EN ISO 11652 added;
— 5.1.9, information on EN 10181 revised;
— 5.1.11, information on EN 10136 revised;
— 5.1.13, information on EN ISO 4945 revised;
— 5.1.17, information on EN ISO 439 revised;

Through its sub-committee SC 2 “Methods of chemical analysis for iron and steel” (secretariat: SIS).
— 5.1.20, information on EN ISO 4947 revised;
— Annex A, reference of CEN/TR 10317 updated;
— Annex A, reference of CEN/TR 10364 updated;
— Annex C, CEN/TR 10362 moved from Figure C.1 to Figure C.2.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
1 Scope
This document lists, under Clause 4, the European Standards which are currently available for the
determination of the chemical composition of steels and cast irons.
In Clause 5, this document provides details on the range of application and gives the principle of the
method described in each standard.
Items which are under preparation as European Standards or as CEN Technical Reports by ECISS/TC 102
are available on the webpage of CEN, through the following link:
https://standards.cen.eu/dyn/www/f?p=204:22:0::::FSP_ORG_ID:733643&cs=123E58BF77E3DE921F
548B80C5FF2E5D4.
Annex A gives a list of other European Standards and CEN Technical Reports applicable for the
determination of the chemical composition of steels and cast irons.
Annex B gives a list of withdrawn Euronorms, together with the corresponding replacement European
Standards, if any.
Annex C shows graphical representations of the content ranges of the methods listed in this document.
Figure C.1 gives the content ranges of the referee methods, Figure C.2 gives the content ranges of the
routine methods and Figure C.3 represents the fields of application of all the methods described.
Annex D provides a trilingual key of the abbreviations used in the Figures given in Annex C.
NOTE Three methods applicable for the analysis of some ferro-alloys are listed in Annex A.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
referee method
stoichiometric method or a method calibrated against pure metals or stoichiometric compounds, which
is to be used for certification analysis or in case of arbitration
Note 1 to entry Due to lack of accuracy or to a low number of laboratories having participated to the related
validation tests, some stoichiometric methods or methods calibrated against pure metals or stoichiometric
compounds cannot be taken as "referee methods". They are published as CEN/TRs.
3.2
routine method
method calibrated against reference materials or certified reference materials, or against standard
solutions commercially available, which is widely used for control purposes (day to day analysis)
4 European Standards for the determination of the chemical composition of
steels and irons
4.1 Mono-elemental methods
4.1.1 Aluminium, Al
EN 29658:1991, Steel — Determination of aluminium content — Flame atomic absorption spectrometric
method (ISO 9658:1990)
4.1.2 Arsenic, As
EN 10212:1995, Chemical analysis of ferrous materials — Determination of arsenic in steel and iron —
Spectrophotometric method
4.1.3 Boron, B
EN 10200:2012, Chemical analysis of ferrous materials — Determination of boron in steels —
Spectrophotometric method
EN ISO 13900:2002, Steel — Determination of boron content — Curcumin spectrophotometric method after
distillation (ISO 13900:1997)
4.1.4 Calcium, Ca
EN 10177:2019, Steels - Determination of calcium content — Flame atomic absorption spectrometric
method (FAAS)
4.1.5 Carbon, C
EN ISO 15349-2:2021, Unalloyed steel — Determination of low carbon content — Part 2: Infrared
absorption method after combustion in an induction furnace (with preheating) (ISO 15349-2:2021)
EN ISO 9556:2001, Steel and iron — Determination of total carbon content — Infrared absorption method
after combustion in an induction furnace (ISO 9556:1989)
4.1.6 Chromium, Cr
CEN/TR 10367:2019, Alloyed steels — Determination of chromium content — Inductively coupled plasma
optical emission spectrometric method
EN 10188:1989, Chemical analysis of ferrous materials — Determination of chromium in steels and irons —
Flame atomic absorption spectrometric method
EN 24937:1990, Steel and iron — Determination of chromium content — Potentiometric or visual method
(ISO 4937:1986)
EN 24937:1990/AC:1991 (Editorial correction), Steel and iron — Determination of chromium content —
Potentiometric or visual method (ISO 4937:1986)
4.1.7 Cobalt, Co
EN ISO 11652:2022, Steel and iron — Determination of cobalt content — Flame atomic absorption
spectrometric method (ISO 11652:1997)
4.1.8 Copper, Cu
EN ISO 4943:2022, Steel and cast iron — Determination of copper content — Flame atomic absorption
spectrometric method (ISO 4943:2022)
EN ISO 4946:2016, Steel and cast iron — Determination of copper — 2,2’-Biquinoline spectrophotometric
method (ISO 4946:2016)
4.1.9 Lead, Pb
EN 10181:2019, Steels — Determination of lead content — Flame atomic absorption spectrometric method
(FAAS)
4.1.10 Manganese, Mn
EN 10071:2012, Chemical analysis of ferrous materials — Determination of manganese in steels and
irons — Electrometric titration method
EN ISO 10700:1995, Steel and iron — Determination of manganese content — Flame atomic spectrometric
method (ISO 10700:1994)
4.1.11 Nickel, Ni
EN 10136:2019, Steels and cast irons — Determination of nickel content — Flame atomic absorption
spectrometric method (FAAS)
EN 10361:2015, Alloyed steels — Determination of nickel content — Inductively coupled plasma optical
emission spectrometric method
EN ISO 4938:2016, Steel and iron — Determination of nickel content — Gravimetric or titrimetric method
(ISO 4938:2016)
4.1.12 Niobium, Nb
EN 10178:1989, Chemical analysis of ferrous materials — Determination of niobium in steels —
Spectrophotometric method
4.1.13 Nitrogen, N
EN 10179:1989, Chemical analysis of ferrous materials — Determination of nitrogen (trace amounts) in
steels — Spectrophotometric method
EN ISO 4945:2018, Steel — Determination of nitrogen — Spectrophotometric method (ISO 4945:2018)
EN ISO 10720:2007, Steel and iron — Determination of nitrogen content — Thermal conductimetric
method after fusion in a current of inert gas (ISO 10720:1997)
EN ISO 15351:2010, Steel and iron — Determination of nitrogen content — Thermal conductimetric
method after fusion in a current of inert gas (Routine method) (ISO 15351:1999)
4.1.14 Oxygen, O
EN 10276-1:2000, Chemical analysis of ferrous materials — Determination of oxygen in steel and iron —
Part 1: Sampling and preparation of steel samples for oxygen determination
EN 10276-2:2003, Chemical analysis of ferrous materials — Determination of oxygen content in steel and
iron — Part 2: Infrared method after fusion under inert gas
4.1.15 Phosphorus, P
EN 10184:2006, Chemical analysis of ferrous materials — Determination of phosphorus in non-alloyed
steels and irons — Molybdenum blue spectrophotometric method
EN ISO 10714:2002, Steel and iron — Determination of phosphorus content — Phosphovanadomolybdate
spectrophotometric method (ISO 10714:1992)
4.1.16 Selenium, Se
CEN/TR 10362:2014, Chemical analysis of ferrous materials — Determination of selenium in steels —
Electrothermal atomic absorption spectrometric method
4.1.17 Silicon, Si
EN ISO 4829-1:2018, Steel and cast iron — Determination of total silicon contents — Reduced
molybdosilicate spectrophotometric method — Part 1: Silicon contents between 0,05 % and 1,0 % (ISO
4829-1:2018)
EN I
...