EN ISO 26845:2008

SLOVENSKI STANDARD
01-julij-2008
Kemijska analiza ognjevzdržnih izdelkov - Splošne zahteve za mokro kemijsko
analizo, atomsko absorpcijsko spektrometrijo (AAS) in induktivno sklopljeno
plazemsko atomsko emisijsko spektrometrijo ( ICP-AES) (ISO 26845:2008)
Chemical analysis of refractories — General requirements for wet chemical analysis,
atomic absorption spectrometry (AAS) and inductively coupled plasma atomic emission
spectrometry (ICP-AES) methods (ISO 26845:2008)
Chemische Analyse feuerfester Erzeugnisse —

Allgemeine Anforderungen an die nasschemische Analyse,
Atomabsorptionsspektrometrie-(AAS-)Verfahren und Verfahren

mit induktiv gekoppeltem Plasma (ICP) (ISO 26845:2008)
Analyse chimique des matériaux réfractaires — Exigences générales pour les méthodes
d'analyse chimique par voie humide, par spectrométrie d'absorption atomique (AAS) et
par spectrométrie d'émission atomique avec plasma induit par haute fréquence (ICP-
AES) (ISO 26845:2008)
Ta slovenski standard je istoveten z: EN ISO 26845:2008
ICS:
81.080 Ognjevzdržni materiali Refractories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 26845
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2008
ICS 81.080 Supersedes ENV 955-4:1997
English Version
Chemical analysis of refractories - General requirements for wet
chemical analysis, atomic absorption spectrometry (AAS) and
inductively coupled plasma atomic emission spectrometry (ICP-
AES) methods (ISO 26845:2008)
Analyse chimique des matériaux réfractaires - Exigences Chemische Analyse feuerfester Erzeugnisse - Allgemeine
générales pour les méthodes d'analyse chimique par voie Anforderungen an die nasschemische Analyse,
humide, par spectrométrie d'absorption atomique (AAS) et Atomabsorptionsspektrometrie-(AAS-)Verfahren und
par spectrométrie d'émission atomique avec plasma induit Verfahren mit induktiv gekoppeltem Plasma (ICP) (ISO
par haute fréquence (ICP-AES) (ISO 26845:2008) 26845:2008)
This European Standard was approved by CEN on 16 February 2008.
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 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 Management Centre has the same status as the
official versions.
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. EN ISO 26845:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 26845:2008) 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 September 2008, and conflicting national standards shall be
withdrawn at the latest by September 2008.
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 ENV 955-4:1997.
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, 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 26845:2008 has been approved by CEN as a EN ISO 26845:2008 without any modification.
INTERNATIONAL ISO
STANDARD 26845
First edition
2008-03-01
Chemical analysis of refractories —
General requirements for wet chemical
analysis, atomic absorption spectrometry
(AAS) and inductively coupled plasma
atomic emission spectrometry (ICP-AES)
methods
Analyse chimique des matériaux réfractaires — Exigences générales
pour les méthodes d'analyse chimique par voie humide, par
spectrométrie d'absorption atomique (AAS) et par spectrométrie
d'émission atomique avec plasma induit par haute fréquence (ICP-AES)

Reference number
ISO 26845:2008(E)
©
ISO 2008
ISO 26845:2008(E)
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ii © ISO 2008 – All rights reserved

ISO 26845:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope .1
2 Normative references .1
3 Terms and definitions .2
4 Apparatus .2
5 Reagents.6
6 Sampling.11
7 Sample mass.12
8 Basic procedure.12
9 Determination of loss on ignition (gravimetric).12
10 Expression of test results.13
11 Examination and adoption of test results .13
12 Test report .14

ISO 26845:2008(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 International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 26845 was prepared by Technical Committee ISO/TC 33, Refractories.
It is to be used in conjunction with ISO 10058-1, ISO 10058-2 and ISO 10058-3, ISO 20565-1, ISO 20565-2
and ISO 20565-3, ISO 21079-1, ISO 21079-2 and ISO 21079-3, and ISO 21587-1, ISO 21587-2 and
ISO 21587-3.
iv © ISO 2008 – All rights reserved

ISO 26845:2008(E)
Introduction
This International Standard gives the general requirements common to the standards used for the chemical
analysis of refractories and refractory products, i.e.:
ISO 10058, Chemical analysis of magnesite and dolomite refractory products (alternative to the X-ray
fluorescence method):
⎯ Part 1: Apparatus, reagents, dissolution and gravimetric silica
⎯ Part 2: Wet chemical analysis
⎯ Part 3: Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma emission
spectrometry (ICP-AES)
ISO 20565 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials
(alternative to the X-ray fluorescence method) —
⎯ Part 1: Apparatus, reagents, dissolution and gravimetric silica
⎯ Part 2: Wet chemical analysis
⎯ Part 3: Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma emission
spectrometry (ICP-AES)
ISO 21079 Chemical analysis of refractories containing alumina, zirconia and silica — Refractories containing
5 % to 45 % of ZrO2 (alternative to the X-ray fluorescence method) —
⎯ Part 1: Apparatus, reagents and dissolution
⎯ Part 2: Wet chemical analysis
⎯ Part 3: Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma emission
spectrometry (ICP-AES)
ISO 21587 Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence
method) —
⎯ Part 1: Apparatus, reagents, dissolution and gravimetric silica
⎯ Part 2: Wet chemical analysis
⎯ Part 3: Inductively coupled plasma and atomic absorption spectrometry methods
These International Standards give wet chemical, AAS and ICP methods for the analysis of refractory
materials and products. They are to be used as an alternative to ISO 12677, when the laboratory does not
have an XRF instrument or its instrument does not meet the requirements of ISO 12677: Chemical analysis of
refractory products by XRF — Fused cast bead method.

INTERNATIONAL STANDARD ISO 26845:2008(E)

Chemical analysis of refractories — General requirements for
wet chemical analysis, atomic absorption spectrometry (AAS)
and inductively coupled plasma atomic emission spectrometry
(ICP-AES) methods
1 Scope
This International Standard specifies apparatus, reagents, sampling, sample preparation, terms and
definitions, basic procedures, loss on ignition and reporting of results applicable to the following standards,
which are used for the chemical analysis of refractory products and raw materials by wet chemical, AAS and
ICP-AES:
ISO 10058-1, ISO 10058-2 and ISO 10058-3;
ISO 20565-1, ISO 20565-2 and ISO 20565-3;
ISO 21079-1, ISO 21079-2 and ISO 21079-3;
ISO 21587-1, ISO 21587-2 and ISO 21587-3.
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.
ISO 31-0, Quantities and units — Part 0: General principles
ISO 836, Terminology for refractories
ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
ISO 5022, Shaped refractory products — Sampling and acceptance testing
ISO 6286, Molecular absorption spectrometry — Vocabulary — General — Apparatus
ISO 6353-1:1982, Reagents for chemical analysis — Part 1: General test methods
ISO 6353-2, Reagents for chemical analysis — Par
...