CEN/TR 10261:2008

SLOVENSKI STANDARD
01-oktober-2008
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SIST CR 10261:1998
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Iron and steel - Review of available methods of chemical analysis
Eisen und Stahl - Übersicht über verfügbare Verfahren der chemischen Analyse
Aciers et fontes - Méthodes d´analyse chimique disponibles
Ta slovenski standard je istoveten z: CEN/TR 10261:2008
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.

TECHNICAL REPORT
CEN/TR 10261
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
July 2008
ICS 77.040.30 Supersedes CR 10261:1995
English Version
Iron and steel - Review of available methods of chemical
analysis
Aciers et fontes - Méthodes d´analyse chimique disponibles Eisen und Stahl - Übersicht über verfügbare Verfahren der
chemischen Analyse
This Technical Report was approved by CEN on 9 April 2007. It has been drawn up by the Technical Committee ECISS/TC 20.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 10261:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
2.1 Mono-elemental methods .4
2.2 Multi-elemental methods.7
3 Range of application and method principle.7
3.1 Mono-elemental methods .7
3.2 Multi-elemental methods.18
Annex A (informative) List of Standards, CEN reports and ECISS Information Circulars relevant
for chemical analysis of ferrous materials.21
Annex B (informative) List of withdrawn Euronorms in the field of chemical analysis of ferrous
materials .22
Annex C (informative) Graphical presentation of the concentration ranges for the methods
presented in this technical report.25

Foreword
This document CEN/TR 10261:2008 has been prepared by Technical Committee ECISS/TC 20 “Methods of
chemical analysis of ferrous products”, the secretariat of which is held by SIS.
This document supersedes CEN/CR 10261:1995.
This report is a review of European standards methods of chemical analysis of steel and iron. Principles and
fields of application for the methods are also indicated.

1 Scope
This CEN Technical Report lists, under Clause 2, the European Standards which are currently available for
the chemical analysis of steel and iron. In Clause 3, it also provides details of range of application and method
principle for each standard.
Items which are under preparation as European Standards or as CEN Technical Reports by ECISS/TC 20 are
available on the webpage of CEN, through the link
http://www.cen.eu/CENORM/Sectors/TechnicalCommitteesWorkshops/CENTechnicalCommittees/WP.asp?pa
ram=6357&title=ECISS%2FTC+20.
Annex A contains a list of European Standards, CEN Technical Reports and ECISS Information Circulars
relevant for chemical analysis of ferrous materials.
Annex B contains a list of withdrawn Euronorms, together with the corresponding replacement European
Standards.
Annex C is a graphical presentation of the concentration ranges for the methods presented in this Technical
Report.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
2.1 Mono-elemental methods
Aluminium, Al
EN 29658:1991, Steel — Determination of aluminium content — Flame atomic absorption spectrometric
method (ISO 9658:1990)
Arsenic, As
EN 10212:1995, Chemical analysis of ferrous materials — Determination of arsenic in steel and iron —
Spectrophotometric method
Boron, B
EN 10200:1991, Chemical analysis of ferrous materials — Determination of boron in steel —
Spectrophotometric method
EN ISO 13900:2002, Steel — Determination of boron content — Curcumin spectrophotometric method after
distillation (ISO 13900:1997)
Calcium, Ca
EN 10177:1989, Chemical analysis of ferrous materials — Determination of calcium in steels — Flame atomic
absorption spectrometric method
Carbon, C
EN 10036:1989, Chemical analysis of ferrous materials — Determination of total carbon in steels and irons —
Gravimetric method after combustion in a stream of oxygen
EN ISO 15349-2:2003, Unalloyed steel — Determination of low carbon content — Part 2: Infrared absorption
method after combustion in an induction furnace (with preheating) (ISO 15349-2:1999)
EN ISO 9556:2001, Steel and iron — Determination of total carbon content — Infrared absorption method
after combustion in an induction furnace (ISO 9556:1989)
Chromium, Cr
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, Steel and iron — Determination of chromium content — Potentiometric or visual
method
Copper, Cu
EN 24946:1990, Determination of copper content in steel and cast iron
EN 24946:1990/AC 1991 (Editorial correction), Steel and cast iron — Determination of copper content — 2,2'
diquinolyl spectrophotometric method (ISO 4946:1984)
EN 24943:1990, Chemical analysis of ferrous metal — Determination of copper content — Flame atomic
absorption spectrometric method (ISO 4943:1985)
EN 24943:1990/AC 1991 (Editorial correction), Steel and cast iron — Determination of copper content —
Flame atomic absorption spectrometric method (ISO 4943:1985)
Lead, Pb
EN 10181:1989, Chemical analysis of ferrous materials — Determination of lead in steels — Flame atomic
absorption spectrometric method
Manganese, Mn
EN 10071:1989, Chemical analysis of ferrous materials — Determination of manganese in steels and irons —
Electrometric titration method
EN 24159:1989, Ferromanganese and ferrosilicomanganese — Determination of manganese content —
Potentiometric method (ISO 4159:1978, ed .1)
EN 24159:1989/AC 1:1989 (Editorial correction), Ferromanganese and ferrosilicomanganese —
Determination of manganese content — Potentiometric method (ISO 4159:1978, ed. 1)
EN ISO 10700:1995, Steel and iron — Determination of manganese content — Flame atomic spectrometric
method (ISO 10700:1994)
Nickel, Ni
EN 10136:1989, Chemical analysis of ferrous materials — Determination of nickel in steels and irons —
Flame atomic absorption spectrometric method
EN 24938:1990, Steel and iron — Determination of nickel content — Gravimetric or titrimetric method
(ISO 4938:1988)
EN 24938:1990/AC 1991 (Editorial correction), Steel and iron — Determination of nickel content —
Gravimetric or titrimetric method (ISO 4938:1988)
Niobium, Nb
EN 10178:1989, Chemical analysis of ferrous materials — Determination of niobium in steels —
Spectrophotometric method
Nitrogen, N
EN 10179:1989, Chemical analysis of ferrous materials — Determination of nitrogen (trace amounts) in
steel — Spectrophotometric method
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)
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
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 10714:2002)
Silicon, Si
EN 24829-1:1990, Steel and cast iron – Determination of total silicon content — Reduced molybdosilicate
spectrophotometric method — Part 1: Silicon content between 0,05 and 1 % (ISO 4829-1:1986)
EN 24829-1:1990/AC 1991(Editorial correction), Determination of total silicon content — Reduced
molybdosilicate spectrophotometric method — Part 1: Silicon content between 0,05 and 1,0 % (ISO 4829-
1:1986)
EN 24829-2:1990, Steel and cast iron — Determination of total silicon content — Reduced molybdosilicate
spectrophotometric method — Part 2: Silicon content between 0,01 and 0,05 % (ISO 4829-2:1988)
EN 24829-2:1990/AC 1991 (Editorial correction), Steel and cast iron — Determination of total silicon
content — Reduced molybdosilicate spectrophotometric method — Part 2: Silicon content between 0,01 and
0,05 % (ISO 4829-2:1988)
Sulphur, S
EN 24935:1991, Steel and iron — Determination of sulphur content — Infrared absorption method after
combustion in an induction furnace (ISO 4935:1989)
EN ISO 4934:2003, Steel and iron — Determination of sulphur content — Gravimetric method
(ISO 4934:2003)
Titanium, Ti
EN ISO 10280:1995, Steel and iron — Determination of titanium content — Diantipyrylmethane
spectrophotometric method (ISO 10280:1991)

Vanadium, V
EN 24947:1991, Steel and cast iron — Determination of vanadium content — Potentiometric titration method
(ISO 4947:1986)
2.2 Multi-elemental methods
Aluminium, Al; Lead, Pb; Nickel, Ni; Silicon, Si and Zinc, Zn
EN 10318:2005, Determination of thickness and chemical composition of zinc- and aluminium-based metallic
coatings — Routine method
Silicon, Si; Manganese, Mn; Phosphorus, P; Chromium, Cr; Nickel, Ni; Molybdenum, Mo; Copper, Cu;
Cobalt, Co; Vanadium, V; Titanium, Ti and Niobium, Nb
EN 10315:2006, Routine method for analysis of high alloy steel by X-ray Fluorescence Spectrometry (XRF) by
using a near by technique
Carbon, C; Silicon, Si; Sulphur, S; Phosphorus, P; Manganese, Mn; Chromium, Cr; Nickel, Ni and
Copper, Cu
CR 10320:2004, Optical emission analysis of low alloy steels (routine method) - Method for determination of C,
Si, S, P, Mn, Cr, Ni and Cu
3 Range of application and method principle
3.1 Mono-elemental methods
3.1.1 Aluminium, Al
3.1.1.1 EN 29658:1991, Steel — Determination of aluminium content — Flame atomic absorption
spectrometric method (ISO 9658:1990)
Range of application:
 determination of aluminium contents between 0,005 % (m/m) and 0,20 % (m/m) in non-alloyed steel.
Method principle:
a) dissolution of a test portion in dilute hydrochloric and nitric acids;
b) fusion of the acid-insoluble material with a mixture of orthoboric acid and potassium carbonate;
c) spraying of the solution into a dinitrogen monoxide-acetylene flame;
d) spectrometric measurement of the atomic absorption of the 309,3 nm spectral line emitted by an
aluminium hollow cathode lamp.
3.1.2 Arsenic, As
3.1.2.1 EN 10212:1995, Chemical analysis of ferrous materials — Determination of arsenic in steel
and iron — Spectrophotometric method
Range of application:
 determination of arsenic contents from 0,001 % to 0,08 % (m/m) in all types of steel and iron.
Method principle:
a) dissolution of a test portion in a mixture of nitric and hydrochloric acids followed by evaporation to dryness
and prolonged heating of the dried residue;
b) extraction of the residue with acid, reduction of the arsenic (As V to As III) by addition of potassium iodine,
ascorbic acid and tin (II) chloride. Conversion of the arsenic to arsenic hydride (arsine) with zinc;
c) absorption of the evolved arsine in a solution of silver diethyldithiocarbamate and l-ephedrin in
trichloromethane;
d) spectrophotometric measurement of the reddish-violet coloured colloid at a wavelength between 500 nm
and 520 nm.
3.1.3 Boron, B
3.1.3.1 EN 10200:1991, Chemical analysis of ferrous materials — Determination of boron in steel —
Spectrophotometric method
Range of application:
 determination of boron content from 0,0004 % to 0,0120 % (m/m) in non-alloyed and alloyed steels.
Method principle:
a) dissolution of a test portion with hydrochloric and nitric acids;
b) decomposition of boron compoun
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