CR 10317:2002

European certified reference materials (EURONORM-CRMs) for the determination of the chemical composition of iron and steel products prepared under the auspices of the European Committee for Iron and Steel Standardization (ECISS)

Introduction and procedures for preparation and classification of EURONORM-CRMs.

Zertifizierte Europäische Referenzmaterialien (EURONORM-ZRM) für die Ermittlung der chemischen Zusammensetzung von Eisen- und Stahlerzeugnissen, hergestellt unter der Schirmherrschaft des Europäischen Komitees für Eisen- und Stahlnormung (ECISS)

Matériaux de référence certifiés européenne (EURONORM-MRC) pour la détermination de la composition chimique des produits sidérurgiques, préparés sous les auspices du Comité Européen de Normalisation du Fer et de l'Acier (ECISS)

Evropski certificirani referenčni materiali (EURONORM-CRMs) za ugotavljanje kemijske sestave železnih in jeklenih izdelkov, pripravljeni pod okriljem Evropskega komiteja za standardizacijo železa in jekla (European Committee for Iron and Steel Standardization - ECCISS)

General Information

• Status: Withdrawn
• Publication Date: 22-Oct-2002
• Withdrawal Date: 14-Jul-2009
• ICS: 77.040.30 - Chemical analysis of metals
• Technical Committee: ECISS/TC 102 - Methods of chemical analysis for iron and steel
• Drafting Committee: ECISS/TC 20 - Methods of chemical analysis of ferrous products
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 15-Jul-2009
• Completion Date: 15-Jul-2009
• Ref Project: SIST CR 10317:2003 - European certified reference materials (EURONORM-CRMs) for the determination of the chemical composition of iron and steel products prepared under the auspices of the European Committee for Iron and Steel Standardization (ECISS)

Relations

• Replaced By: CEN/TR 10317:2009 - European certified reference materials (EURONORM-CRMs) for the determination of the chemical composition of iron and steel products prepared under the auspices of the European Committee for Iron and Steel Standardization
• Effective Date: 18-Jul-2009

Standards Content (Sample)

SLOVENSKI STANDARD
SIST CR 10317:2003
01-april-2003
(YURSVNLFHUWLILFLUDQLUHIHUHQþQLPDWHULDOL(8521250&50V]DXJRWDYOMDQMH
NHPLMVNHVHVWDYHåHOH]QLKLQMHNOHQLKL]GHONRYSULSUDYOMHQLSRGRNULOMHP
(YURSVNHJDNRPLWHMD]DVWDQGDUGL]DFLMRåHOH]DLQMHNOD(XURSHDQ&RPPLWWHHIRU
,URQDQG6WHHO6WDQGDUGL]DWLRQ(&&,66
European certified reference materials (EURONORM-CRMs) for the determination of the
chemical composition of iron and steel products prepared under the auspices of the
European Committee for Iron and Steel Standardization (ECISS)
Zertifizierte Europäische Referenzmaterialien (EURONORM-ZRM) für die Ermittlung der
chemischen Zusammensetzung von Eisen- und Stahlerzeugnissen, hergestellt unter der
Schirmherrschaft des Europäischen Komitees für Eisen- und Stahlnormung (ECISS)
Matériaux de référence certifiés européenne (EURONORM-MRC) pour la détermination
de la composition chimique des produits sidérurgiques, préparés sous les auspices du
Comité Européen de Normalisation du Fer et de l'Acier (ECISS)
Ta slovenski standard je istoveten z: CR 10317:2002
ICS:
77.040.30 Kemijska analiza kovin Chemical analysis of metals
77.080.01 Železne kovine na splošno Ferrous metals in general
SIST CR 10317:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST CR 10317:2003

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SIST CR 10317:2003
CEN REPORT
CR 10317
RAPPORT CEN
CEN BERICHT
October 2002
ICS
English version
European certified reference materials (EURONORM-CRMs) for
the determination of the chemical composition of iron and steel
products prepared under the auspices of the European
Committee for Iron and Steel Standardization (ECISS)
Matériaux de référence certifiés européenne (EURONORM-
MRC) pour la détermination de la composition chimique
des produits sidérurgiques, préparés sous les auspices du
Comité Européen de Normalisation du Fer et de l'Acier
(ECISS)
This CEN Report was approved by CEN on 21 January 2001. It has been drawn up by the Technical Committee ECISS/TC 20.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. CR 10317:2002 E
worldwide for CEN national Members.

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SIST CR 10317:2003
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Contents
Foreword.3
1 Introduction.3
2 EURONORM-CRMs of cast and wrought materials - Preparation of samples .5
3 EURONORM-CRMs of non-metallic materials - Preparation of samples.6
4 List of laboratories participating in the certification analysis .6
5 Distribution of EURONORM-CRMs .11
6 Details of current EURONORM-CRMs.11
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Foreword
This document (CR 10317:2002) has been prepared by Technical Committee CEN/TC 20 "Methods of chemical
analysis of ferrous products", the secretariat of which is held by SIS.
1 Introduction
In accordance with the definition in ISO Guide 30:1992 (Terms and definitions used in connection with reference
materials) the Certified Reference Materials (CRMs) described in this CEN Report are ”homogeneous materials or
substances, one or more of whose property values are certified by a procedure which establishes its traceability to
an accurate realization of the unit in which the property values are expressed, and for which each certified value is
accompanied by an uncertainty value at a stated level of confidence.” Furthermore, they are accompanied by a
certificate issued by the producing organisation on behalf of the Co-ordinating Committee (COCOR) of ECISS after
approval by the participating laboratories and the producing organisations [France - Institut de Recherches de la
Sidérurgie Française (IRSID), Centre Technique des Industries de la Fonderie (CTIF); Germany - Iron and Steel
CRM Working Group (AGZRM) comprising Bundesanstalt für Materialforschung und -prüfung (BAM), Max-Planck-
Institut für Eisenforschung (MPI), Verein Deutscher Eisenhüttenleute (VDEh); Sweden - Nordic CRM Working
Group, (NCRMWG) comprising Swedish Institute for Metals Research and Jernkontoret; United Kingdom - Bureau
of Analysed Samples Limited (BAS)].
They may therefore be used for the following purposes:
- to establish the validity of a new analytical method;
- to control the accuracy of execution of an analysis;
- to calibrate analytical instruments which cannot be calibrated with primary substances;
- to establish values for secondary reference materials.
The use of CRMs is recommended to check the correct application of standard methods of analysis.
Since 1968 EURONORM-CRMs have been analysed by laboratories in most countries in the European Union (EU)
or former European Community (EC). Pending their eventual replacement by EURONORM-CRMs, a number of
former national CRMs prepared, analysed and certified by laboratories in Germany, France and the United
Kingdom respectively, were accepted as EURONORM-CRMs after their accuracy had been checked by other
European laboratories. This procedure ceased in 1990.
EURONORM-CRMs are classified into the following categories:
- Cast and wrought materials: irons, steels, special alloys and ferro-alloys;
- Non-metallic materials: raw materials (ores, concentrates, additives and refractories) and by-products (slags,
dusts and similar materials).
In each case there is a brief description of the method of sample preparation.
This information is followed by a list of all the laboratories which have participated in the certification analysis of
these EURONORM-CRMs and then a list of the producers or their distributors.
The certification of these EURONORM-CRMs requires a considerable amount of analytical work. This is carried out
with the collaboration of numerous laboratories (producers, users and government laboratories) in close liaison with
standardizing bodies in the European countries.
Each EURONORM-CRM is analysed by approximately 20 laboratories in Europe. At present laboratories from the
following countries participate in the analyses: Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy,
Luxembourg, the Netherlands, Norway, Spain, Sweden and the United Kingdom. Each laboratory is requested to
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analyse the elements to be determined four times on separate portions of the sample using a reference method of
its choice.
A statistical evaluation is carried out on all the individual values obtained for each element in order to confirm that
they are distributed normally about the overall mean and to identify any outlying values. It is a normal condition for
certification of all elements or constituents that, after elimination of statistical outliers, there remain at least 14
acceptable mean values. In certain cases, for instance relating to elements or constituents which are difficult to
analyse, or where their contents are very low (less than 10 mm/g), the minimum number of acceptable mean values
to enable certification may be reduced to 10.
The overall mean value, M , the standard deviation of the individual mean values, S , the between-laboratory
M M
, and the within-laboratory standard deviation, S , are then calculated and noted on the
standard deviation, S
b W
certificate. Using this information the half-width confidence interval C (95 %) of the certified mass content can be
calculated from the equation:
t·S
M
C()95% =
n
where
n is the number of acceptable mean values;
t is the Student's value at the desired probability with n-1 degrees of freedom.
The finely divided EURONORM-CRMs are supplied in glass bottles containing 100 g. These are annotated by the
suffix “(C)”.
Some EURONORM-CRMs are also available in the form of solid discs normally approximately 38 mm in diameter x
25 mm to 30 mm thick. These are annotated by the suffix ”(D)”.
Each sample is packed in a cardboard carton of different colour according to the producer, as follows:
BAM (Germany): White
BAS (UK): Blue
CTIF (France): Salmon
IRSID (France): Green
NCRMWG (Sweden): Yellow
Certificates for BAS, CTIF, IRSID and NCRMWG samples are placed in the carton, together with the sample, and
the BAM certificates are sent separately.
1.1 Classification of EURONORM-CRMs
EURONORM-CRMs, prepared under the auspices of ECISS, are grouped into the following categories:
From 001 to 099 - high purity irons and unalloyed steels:
Normally no element has a mass content greater than the limit values in the following list:
- silicon, limit value 1,0 %
- manganese, limit value 1,5 %
- chromium and nickel, limit value for each 0,5 %
- cobalt, copper and tungsten, limit value for each 0,3 %
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- other elements, limit value for each 0,10 %
- boron, carbon, phosphorus, lead and sulphur, no limit value.
From 101 to 199 - alloy steels:
The content of one or more elements is greater than the limit for unalloyed steels but none exceeds 5 %. The sum
of these alloying elements remains under 10 %.
From 201 - 299 - highly alloyed steels:
The content of one or more elements is greater than 5 % or the sum of all these alloying elements is at least 10 %.
Nevertheless the iron content will normally be greater than 50 %.
From 301 to 399 - special alloys:
The iron content is less than 50 %.
From 401 to 499 - pig irons and cast irons:
From 501 to 599 - ferro-alloys:
From 601 to 699 - ores, concentrates, sinters and miscellaneous materials:
From 701 to 799 - additives and refractories:
From 801 to 899 - by-products, such as
...