ISO 9516-1:2003
(Main)Iron ores — Determination of various elements by X-ray fluorescence spectrometry — Part 1: Comprehensive procedure
Iron ores — Determination of various elements by X-ray fluorescence spectrometry — Part 1: Comprehensive procedure
ISO 9516-1:2003 sets out a wavelength dispersive X-ray fluorescence procedure for the determination of iron, silicon, calcium, manganese, aluminium, titanium, magnesium, phosphorus, sulfur, potassium, tin, vanadium, chromium, cobalt, nickel, copper, zinc, arsenic, lead and barium in iron ores. The method has been designed to cope with iron ores having high ignition losses. The method is applicable to iron ores regardless of mineralogical type.
Minerais de fer — Dosage de divers éléments par spectrométrie de fluorescence de rayons X — Partie 1: Procédure détaillée
Železove rude - Določevanje različnih elementov z rentgensko fluorescentno spektrometrijo - 1. del: Celovit postopek
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2006
äHOH]RYHUXGH'RORþHYDQMHUD]OLþQLKHOHPHQWRY]UHQWJHQVNRIOXRUHVFHQWQR
VSHNWURPHWULMRGHO &HORYLWSRVWRSHN
Iron ores - Determination of various elements by X-ray fluorescence spectrometry - Part
1: Comprehensive procedure
Minerais de fer - Dosage de divers éléments par spectrométrie de fluorescence de
rayons X - Partie 1: Procédure détaillée
Ta slovenski standard je istoveten z: ISO 9516-1:2003
ICS:
73.060.10 Železove rude Iron ores
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL ISO
STANDARD 9516-1
First edition
2003-04-01
Iron ores — Determination of various
elements by X-ray fluorescence
spectrometry —
Part 1:
Comprehensive procedure
Minerais de fer — Dosage de divers éléments par spectrométrie de
fluorescence de rayons X —
Partie 1: Procédure détaillée
Reference number
©
ISO 2003
PDF disclaimer
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© ISO 2003
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
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Tel. + 41 22 749 01 11
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Published in Switzerland
ii © ISO 2003 — All rights reserved
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 2
3 Principle . 2
4 Reagents and materials. 2
5 Apparatus. 6
6 Sampling and samples . 7
7 Procedure. 7
8 Calculation of results. 17
9 General treatment of results . 20
10 Test report. 24
Annex A (normative) Preparation of flux A. 25
Annex B (normative) Preparation of flux B or flux C . 27
Annex C (normative) Preparation of synthetic calibration standard . 28
Annex D (normative) Standard deviation of specimen preparation. 30
Annex E (normative) Spectrometer precision tests. 35
Annex F (normative) Determination of the dead time and maximum count rate of the equipment. 39
Annex G (informative) Air cooling block for fused discs . 46
Annex H (informative) Computer program for calculation of results. 47
Annex I (informative) Sample of data for use with calculation program . 60
Annex J (normative) Flowchart for acceptance of results . 65
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 9516-1 was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron,
Subcommittee SC 2, Chemical analysis.
This first edition, together with ISO 9516-2, cancels and replaces ISO 9516:1992 by the augmentation of the
range of elements under analysis and the diversification into two procedures.
ISO 9516 consists of the following parts, under the general title Iron ores — Determination of various elements
by X-ray fluorescence spectrometry:
Part 1: Comprehensive procedure
Part 2: Simplified procedure
iv © ISO 2003 — All rights reserved
Introduction
In this part of ISO 9516, Table 1 indicates that some determinations may be used for referee purposes and
others for routine analysis only.
A simplified procedure for routine use with all determination will be published in ISO 9516-2.
INTERNATIONAL STANDARD ISO 9516-1:2003(E)
Iron ores — Determination of various elements by X-ray
fluorescence spectrometry —
Part 1:
Comprehensive procedure
WARNING — This part of ISO 9516 may involve hazardous materials, operations and equipment. This
part of ISO 9516 does not purport to address all of the safety problems associated with its use. It is
the responsibility of the user of this part of ISO 9516 to establish appropriate health and safety
practices and determine the applicability of regulatory limitations prior to use.
1 Scope
This part of ISO 9516 sets out a wavelength dispersive X-ray fluorescence procedure for the determination of
iron, silicon, calcium, manganese, aluminium, titanium, magnesium, phosphorus, sulfur, potassium, tin,
vanadium, chromium, cobalt, nickel, copper, zinc, arsenic, lead and barium in iron ores. The method has been
designed to cope with iron ores having high ignition losses.
The method is applicable to iron ores regardless of mineralogical type. The concentration range covered for
each of the component elements is given in Table 1. The determination of total iron cannot be used for referee
purposes.
Table 1 — Range of application of the method
Component Concentration range for Concentration range for
element referee purposes analysis
% %
Fe 38 to 72
Si 0,2 to 6,5 0,2 to 6,5
Ca 0,019 to 12,7 0,019 to 12,7
Mn 0,02 to 0,82 0,02 to 0,82
Al 0,1 to 3,5 0,1 to 3,5
Ti 0,016 to 4,7 0,016 to 4,7
Mg 0,2 to 2,0 0,2 to 2,0
P 0,006 to 0,6 0,006 to 0,6
S 0,04 to 0,6 0,007 to 0,6
K 0,008 to 0,45 0,012 to 0,45
Sn 0,006 to 0,015
V 0,001 7 to 0,3 0,001 7 to 0,3
Cr 0,006 to 0,024
Co 0,006 to 0,018
Ni 0,011 to 0,013
Cu 0,012 to 0,061
Zn 0,006 9 to 0,166 0,005 to 0,166
As 0,008 to 0,06
Pb 0,018 to 0,32 0,018 to 0,32
Ba 0,036 to 0,4
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 3082:1998, Iron ores — Sampling and sample preparation procedures
ISO 7764:1985, Iron ores — Preparation of predried test samples for chemical analysis
3 Principle
The glass discs for X-ray fluorescence measurement are prepared by incorporating the test portion of the iron
ore sample, via fusion, into a borate glass disc using a casting procedure. By using a fused glass disc, particle
size effects are eliminated. Sodium nitrate is added to the flux to ensure complete oxidation of all components,
particularly iron and sulfur. Any of three methods for glass disc preparation may be used: two use lithium
borate as flux; the other uses sodium borate.
X-ray fluorescence measurements are based on the “line only” principle. It is not necessary to measure
backgrounds on each glass disc, as background equivalent concentrations (BEC) are determined on several
blank glass discs at the line position using concentration-based line-overlap corrections. If desired,
backgrounds can be measured to obtain net line intensities. The method is applicable to data from
simultaneous and sequential X-ray fluorescence spectrometers.
The method relies on measuring all components of the sample, other than volatiles. If some components are
not measured, then errors will result in the measured components (see 7.2.2).
Calibration is carried out using pure chemicals. Results are obtained after matrix corrections for inter-element
effects.
4 Reagents and materials
During analysis, only reagents of recognized high purity shall be used.
NOTE 1 Where reagents have been ignited, they should be covered during cooling in the desiccator and weighed as
soon as possible.
NOTE 2 Reagents 4.2, 4.5, 4.7, 4.8, 4.9, 4.11, 4.13, 4.15, 4.16, 4.18 and 4.20 are used only for the preparation of the
synthetic calibration standard, and are not required if the synthetic calibration standard is available commercially.
4.1 Silicon dioxide, (SiO ), nominally 99,999 % SiO
2 2
The silicon dioxide shall contain less than 3 µg/g of each of the other elements listed in Table 1. It shall be
heated to 1 000 °C in a platinum crucible for a minimum of 2 h and cooled in a desiccator.
4.2 Aluminium oxide, (Al O ), analytical reagent grade, α form
2 3
If the α form is used, it shall be heated to 1 000 °C in a platinum crucible for a minimum of 2 h. If the
aluminium oxide is not the α form, it shall be converted to the α form by heating to 1 250 °C in a platinum
crucible for a minimum of 2 h. It shall be cooled in a desiccator and weighed as soon as it is cool.
2 © ISO 2003 — All rights reserved
4.3 Iron(III) oxide, (Fe O ), nominally 99,999 % Fe O
2 3 2 3
The iron(III) oxide shall contain less than 3 µg/g of each of the other elements listed in Table 1. It shall be
heated at 1 000 °C in a platinum crucible for a minimum of 1 h and cooled in a desiccator.
4.4 Titanium dioxide, (TiO )
Analytical grade titanium dioxide shall be heated at 1 000 °C in a platinum crucible for a minimum of 1 h and
cooled in a desiccator.
Phosphorus is a common impurity in TiO and a reagent low in phosphorus shall be selected. The selected
reagent shall be checked, as even nominally high-purity reagents can be significantly contaminated, e.g. a
supposed 99,99 % TiO grade reagent has been found to contain about 0,5 % P O .
2 2 5
4.5 Potassium dihydrogen orthophosphate, (KH PO )
2 4
Analytical grade potassium dihydrogen orthophosphate shall be dried at 105 °C for 1 h and cooled in a
desiccator.
4.6 Calcium carbonate, (CaCO )
Analytical grade calcium carbonate shall be dried at 105 °C for 1 h and cooled in a desiccator.
.
4.7 Calcium sulfate, (CaSO 2H O)
4 2
Analytical grade calcium sulfate dihydrate shall be dehydrated at 700 °C for 1 h and cooled in a desiccator.
4.8 Manganese oxide, (Mn O )
3 4
Manganese oxide shall be prepared by heating analytical grade manganese oxide (MnO , MnO or Mn O ) for
3 4
15 h at 1 000 °C in a platinum crucible and then cooling. The lumpy material shall be crushed to a fine powder,
heated for 1 h at 20
...
INTERNATIONAL ISO
STANDARD 9516-1
First edition
2003-04-01
Iron ores — Determination of various
elements by X-ray fluorescence
spectrometry —
Part 1:
Comprehensive procedure
Minerais de fer — Dosage de divers éléments par spectrométrie de
fluorescence de rayons X —
Partie 1: Procédure détaillée
Reference number
©
ISO 2003
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2003
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2003 — All rights reserved
Contents Page
Foreword. iv
Introduction . v
1 Scope. 1
2 Normative references . 2
3 Principle . 2
4 Reagents and materials. 2
5 Apparatus. 6
6 Sampling and samples . 7
7 Procedure. 7
8 Calculation of results. 17
9 General treatment of results . 20
10 Test report. 24
Annex A (normative) Preparation of flux A. 25
Annex B (normative) Preparation of flux B or flux C . 27
Annex C (normative) Preparation of synthetic calibration standard . 28
Annex D (normative) Standard deviation of specimen preparation. 30
Annex E (normative) Spectrometer precision tests. 35
Annex F (normative) Determination of the dead time and maximum count rate of the equipment. 39
Annex G (informative) Air cooling block for fused discs . 46
Annex H (informative) Computer program for calculation of results. 47
Annex I (informative) Sample of data for use with calculation program . 60
Annex J (normative) Flowchart for acceptance of results . 65
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 9516-1 was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron,
Subcommittee SC 2, Chemical analysis.
This first edition, together with ISO 9516-2, cancels and replaces ISO 9516:1992 by the augmentation of the
range of elements under analysis and the diversification into two procedures.
ISO 9516 consists of the following parts, under the general title Iron ores — Determination of various elements
by X-ray fluorescence spectrometry:
Part 1: Comprehensive procedure
Part 2: Simplified procedure
iv © ISO 2003 — All rights reserved
Introduction
In this part of ISO 9516, Table 1 indicates that some determinations may be used for referee purposes and
others for routine analysis only.
A simplified procedure for routine use with all determination will be published in ISO 9516-2.
INTERNATIONAL STANDARD ISO 9516-1:2003(E)
Iron ores — Determination of various elements by X-ray
fluorescence spectrometry —
Part 1:
Comprehensive procedure
WARNING — This part of ISO 9516 may involve hazardous materials, operations and equipment. This
part of ISO 9516 does not purport to address all of the safety problems associated with its use. It is
the responsibility of the user of this part of ISO 9516 to establish appropriate health and safety
practices and determine the applicability of regulatory limitations prior to use.
1 Scope
This part of ISO 9516 sets out a wavelength dispersive X-ray fluorescence procedure for the determination of
iron, silicon, calcium, manganese, aluminium, titanium, magnesium, phosphorus, sulfur, potassium, tin,
vanadium, chromium, cobalt, nickel, copper, zinc, arsenic, lead and barium in iron ores. The method has been
designed to cope with iron ores having high ignition losses.
The method is applicable to iron ores regardless of mineralogical type. The concentration range covered for
each of the component elements is given in Table 1. The determination of total iron cannot be used for referee
purposes.
Table 1 — Range of application of the method
Component Concentration range for Concentration range for
element referee purposes analysis
% %
Fe 38 to 72
Si 0,2 to 6,5 0,2 to 6,5
Ca 0,019 to 12,7 0,019 to 12,7
Mn 0,02 to 0,82 0,02 to 0,82
Al 0,1 to 3,5 0,1 to 3,5
Ti 0,016 to 4,7 0,016 to 4,7
Mg 0,2 to 2,0 0,2 to 2,0
P 0,006 to 0,6 0,006 to 0,6
S 0,04 to 0,6 0,007 to 0,6
K 0,008 to 0,45 0,012 to 0,45
Sn 0,006 to 0,015
V 0,001 7 to 0,3 0,001 7 to 0,3
Cr 0,006 to 0,024
Co 0,006 to 0,018
Ni 0,011 to 0,013
Cu 0,012 to 0,061
Zn 0,006 9 to 0,166 0,005 to 0,166
As 0,008 to 0,06
Pb 0,018 to 0,32 0,018 to 0,32
Ba 0,036 to 0,4
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 3082:1998, Iron ores — Sampling and sample preparation procedures
ISO 7764:1985, Iron ores — Preparation of predried test samples for chemical analysis
3 Principle
The glass discs for X-ray fluorescence measurement are prepared by incorporating the test portion of the iron
ore sample, via fusion, into a borate glass disc using a casting procedure. By using a fused glass disc, particle
size effects are eliminated. Sodium nitrate is added to the flux to ensure complete oxidation of all components,
particularly iron and sulfur. Any of three methods for glass disc preparation may be used: two use lithium
borate as flux; the other uses sodium borate.
X-ray fluorescence measurements are based on the “line only” principle. It is not necessary to measure
backgrounds on each glass disc, as background equivalent concentrations (BEC) are determined on several
blank glass discs at the line position using concentration-based line-overlap corrections. If desired,
backgrounds can be measured to obtain net line intensities. The method is applicable to data from
simultaneous and sequential X-ray fluorescence spectrometers.
The method relies on measuring all components of the sample, other than volatiles. If some components are
not measured, then errors will result in the measured components (see 7.2.2).
Calibration is carried out using pure chemicals. Results are obtained after matrix corrections for inter-element
effects.
4 Reagents and materials
During analysis, only reagents of recognized high purity shall be used.
NOTE 1 Where reagents have been ignited, they should be covered during cooling in the desiccator and weighed as
soon as possible.
NOTE 2 Reagents 4.2, 4.5, 4.7, 4.8, 4.9, 4.11, 4.13, 4.15, 4.16, 4.18 and 4.20 are used only for the preparation of the
synthetic calibration standard, and are not required if the synthetic calibration standard is available commercially.
4.1 Silicon dioxide, (SiO ), nominally 99,999 % SiO
2 2
The silicon dioxide shall contain less than 3 µg/g of each of the other elements listed in Table 1. It shall be
heated to 1 000 °C in a platinum crucible for a minimum of 2 h and cooled in a desiccator.
4.2 Aluminium oxide, (Al O ), analytical reagent grade, α form
2 3
If the α form is used, it shall be heated to 1 000 °C in a platinum crucible for a minimum of 2 h. If the
aluminium oxide is not the α form, it shall be converted to the α form by heating to 1 250 °C in a platinum
crucible for a minimum of 2 h. It shall be cooled in a desiccator and weighed as soon as it is cool.
2 © ISO 2003 — All rights reserved
4.3 Iron(III) oxide, (Fe O ), nominally 99,999 % Fe O
2 3 2 3
The iron(III) oxide shall contain less than 3 µg/g of each of the other elements listed in Table 1. It shall be
heated at 1 000 °C in a platinum crucible for a minimum of 1 h and cooled in a desiccator.
4.4 Titanium dioxide, (TiO )
Analytical grade titanium dioxide shall be heated at 1 000 °C in a platinum crucible for a minimum of 1 h and
cooled in a desiccator.
Phosphorus is a common impurity in TiO and a reagent low in phosphorus shall be selected. The selected
reagent shall be checked, as even nominally high-purity reagents can be significantly contaminated, e.g. a
supposed 99,99 % TiO grade reagent has been found to contain about 0,5 % P O .
2 2 5
4.5 Potassium dihydrogen orthophosphate, (KH PO )
2 4
Analytical grade potassium dihydrogen orthophosphate shall be dried at 105 °C for 1 h and cooled in a
desiccator.
4.6 Calcium carbonate, (CaCO )
Analytical grade calcium carbonate shall be dried at 105 °C for 1 h and cooled in a desiccator.
.
4.7 Calcium sulfate, (CaSO 2H O)
4 2
Analytical grade calcium sulfate dihydrate shall be dehydrated at 700 °C for 1 h and cooled in a desiccator.
4.8 Manganese oxide, (Mn O )
3 4
Manganese oxide shall be prepared by heating analytical grade manganese oxide (MnO , MnO or Mn O ) for
3 4
15 h at 1 000 °C in a platinum crucible and then cooling. The lumpy material shall be crushed to a fine powder,
heated for 1 h at 200 °C and cooled in a desiccator.
4.9 Magnesium oxide, (MgO)
Analytical grade magnesium oxide shall be dried in a platinum crucible by slowly heating from room
temperature to 1 000 °C. After 1 h at 1 000 °C, the crucible containing the magnesium oxide shall be placed in
a desiccator and weighed as soon as it is cool, as magnesium oxide readily absorbs carbon dioxide from the
atmosphere.
4.10 Sodium nitrate, (NaNO )
Analytical grade sodium nitrate shall be dried at 105 °C for 1 h and cooled in a desiccator.
4.11 Tin oxide, (SnO )
Analytical grade tin oxide shall be heated at 400 °C for a minimum of 1 h and cooled in a desiccator.
4.12 Vanadium(V) oxide, (V O )
2 5
Analytical grade vanadium(V) oxide shall be heated at 400 °C for a minimum of 1 h and cooled in a desiccator.
4.13 Chromium(III) oxide, (Cr O )
2 3
Analytical grade chromium(III) oxide shall be heated at 400 °C for a minimum of 1 h and cooled in a desiccator.
ISO
...
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