EN ISO 12677:2011

SLOVENSKI STANDARD
01-december-2011
1DGRPHãþD
SIST EN ISO 12677:2003
Kemijska analiza ognjevzdržnih izdelkov z XRF - Metoda z vlito talino (ISO
12677:2011)
Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead
method (ISO 12677:2011)
Chemische Analyse von feuerfesten Erzeugnissen durch RFA - Schmelzaufschluss-
Verfahren (ISO 12677:2011)
Analyse chimique des matériaux réfractaires par fluorescence de rayons X - Méthode de
la perle fondue (ISO 12677:2011)
Ta slovenski standard je istoveten z: EN ISO 12677:2011
ICS:
81.080 Ognjevzdržni materiali Refractories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 12677
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2011
ICS 81.080 Supersedes EN ISO 12677:2003
English Version
Chemical analysis of refractory products by X-ray fluorescence
(XRF) - Fused cast-bead method (ISO 12677:2011)
Analyse chimique des matériaux réfractaires par Chemische Analyse von feuerfesten Erzeugnissen durch
fluorescence de rayons X - Méthode de la perle fondue Röntgenfluoreszenz-Analyse (RFA) - Schmelzaufschluss-
(ISO 12677:2011) Verfahren (ISO 12677:2011)
This European Standard was approved by CEN on 10 September 2011.

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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12677:2011: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 12677:2011) has been prepared by Technical Committee ISO/TC 33 "Refractories" in
collaboration with Technical Committee CEN/TC 187 “Refractory products and materials” the secretariat of
which is held by BSI.
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 April 2012, and conflicting national standards shall be withdrawn at the
latest by April 2012.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 12677:2003.
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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 12677:2011 has been approved by CEN as a EN ISO 12677:2011 without any modification.

INTERNATIONAL ISO
STANDARD 12677
Second edition
2011-10-01
Chemical analysis of refractory products
by X-ray fluorescence (XRF) — Fused
cast-bead method
Analyse chimique des matériaux réfractaires par fluorescence de
rayons X — Méthode de la perle fondue

Reference number
ISO 12677:2011(E)
©
ISO 2011
ISO 12677:2011(E)
©  ISO 2011
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ii © ISO 2011 – All rights reserved

ISO 12677:2011(E)
Contents Page
Foreword . v
1  Scope . 1
2  Normative references . 1
3  Types of material . 1
4  Principle . 2
5  Apparatus . 2
6  Sample grinding . 3
7  Loss on ignition (and/or drying) . 4
8  Flux . 4
8.1  Choice of flux and ratio of flux to sample . 4
8.2  Compensations for moisture in flux . 5
9  Fusion casting procedures. 5
9.1  Fusion of samples and casting of beads . 5
9.2  Automatic bead preparation . 7
9.3  Storage . 7
9.4  Special problems . 8
10  Calibration . 8
10.1  Calibration standards . 8
10.2  Reagents and series reference materials (SeRMs) . 8
10.3  Calibration using reagents . 10
10.4  Calibration using SeRMs . 15
11  Corrections . 17
11.1  Line-overlap correction . 17
11.2  Background correction . 17
11.3  Drift correction . 18
11.4  Calculation of results . 18
11.5  Software requirements . 19
12  Reproducibility and repeatability . 20
12.1  Fusion tests . 20
12.2  Frequency of instrument tests . 20
12.3  Maximum allowance differences of sample holders . 20
12.4  Sample measuring positions . 21
12.5  Instrument repeatability . 21
12.6  Sequential systems . 21
12.7  Dead time . 22
12.8  Other tests . 22
12.9  Flow gas . 22
13  Accuracy determined by certified reference materials . 22
13.1  Validation of synthetic calibrations . 22
13.2  Validation of SeRM calibrations . 22
13.3  Fresh beads of the CRMs or synthetic standards used to check SeRM calibrations . 22
14  Definitions of limits of detection . 23
15  Test report . 23
ISO 12677:2011(E)
Annex A (normative) Calibration range and required detection limits .24
Annex B (normative) Corrections for tungsten carbide grinding media .28
Annex C (informative) Examples of fluxes/flux ratios .30
Annex D (normative) Examples of CRM to be used to check synthetic calibrations .32
Annex E (normative) Examples of SeRM .38
Annex F (normative) Equation for theoretical calculations .43
Annex G (normative) Certified reference materials (CRMs) .44
Annex H (normative) Method of inter-element correction used to compensate for the effects of
co-existing components when using SeRM for calibration .47
Annex I (normative) Standard deviations achieved with certified reference materials .68
Bibliography .75

iv © ISO 2011 – All rights reserved

ISO 12677:2011(E)
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft Interna
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