SIST EN ISO 11494:2019
(Main)Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES method using an internal standard element (ISO 11494:2019)
Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES method using an internal standard element (ISO 11494:2019)
This document describes an analytical procedure for the determination of platinum in platinum alloys with a nominal content up to 990 ‰ (parts per thousand), including alloys according to ISO 9202.
Schmuck und Edelmetalle - Bestimmung von Platin in Platinschmucklegierungen - ICP-OES-Verfahren unter Verwendung eines internen Standardelements (ISO 11494:2019)
Joaillerie et métals précieux - Dosage du platine dans les alliages de platine - Méthode par l'ICP-OES, utilisant un étalon interne (ISO 11494:2019)
Le présent document décrit un mode opératoire analytique pour le dosage du platine dans les alliages de platine, d'une teneur nominale allant jusqu'à 990 ? (millièmes), notamment pour les alliages conformes à l'ISO 9202.
Nakit in plemenite kovine - Določevanje platine v zlitinah platine - Metoda ICP-OES z uporabo notranjega standardnega elementa (ISO 11494:2019)
Ta dokument opisuje analitski postopek za določevanje platine v zlitinah platine z nominalno vsebnostjo do 990 ‰ (delov na tisoč), vključujoč zlitine v skladu s standardom ISO 9202.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 11494:2019
01-november-2019
Nadomešča:
SIST EN ISO 11494:2016
Nakit in plemenite kovine - Določevanje platine v zlitinah platine - Metoda ICP-OES
z uporabo notranjega standardnega elementa (ISO 11494:2019)
Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES
method using an internal standard element (ISO 11494:2019)
Schmuck und Edelmetalle - Bestimmung von Platin in Platinschmucklegierungen - ICP-
OES-Verfahren unter Verwendung eines internen Standardelements (ISO 11494:2019)
Joaillerie et métals précieux - Dosage du platine dans les alliages de platine - Méthode
par l'ICP-OES, utilisant un étalon interne (ISO 11494:2019)
Ta slovenski standard je istoveten z: EN ISO 11494:2019
ICS:
39.060 Nakit Jewellery
SIST EN ISO 11494:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 11494:2019
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SIST EN ISO 11494:2019
EN ISO 11494
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 39.060 Supersedes EN ISO 11494:2016
English Version
Jewellery and precious metals - Determination of platinum
in platinum alloys - ICP-OES method using an internal
standard element (ISO 11494:2019)
Joaillerie, bijouterie et métaux précieux - Dosage du Schmuck und Edelmetalle - Bestimmung von Platin in
platine dans les alliages de platine - Méthode par l'ICP- Platinschmucklegierungen - ICP-OES-Verfahren unter
OES, utilisant un étalon interne (ISO 11494:2019) Verwendung eines internen Standardelements (ISO
11494:2019)
This European Standard was approved by CEN on 26 April 2019.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11494:2019 E
worldwide for CEN national Members.
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SIST EN ISO 11494:2019
EN ISO 11494:2019 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 11494:2019
EN ISO 11494:2019 (E)
European foreword
This document (EN ISO 11494:2019) has been prepared by Technical Committee ISO/TC 174 "Jewellery
and precious metals" in collaboration with Technical Committee CEN/SS M21 “Precious metals -
Applications in jewellery and associated products” the secretariat of which is held by CCMC.
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 February 2020, and conflicting national standards
shall be withdrawn at the latest by February 2020.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11494:2016.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 11494:2019 has been approved by CEN as EN ISO 11494:2019 without any modification.
3
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SIST EN ISO 11494:2019
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SIST EN ISO 11494:2019
INTERNATIONAL ISO
STANDARD 11494
Third edition
2019-07
Jewellery and precious metals —
Determination of platinum in
platinum alloys — ICP-OES method
using an internal standard element
Joaillerie et métaux précieux — Dosage du platine dans les alliages de
platine — Méthode par ICP-OES utilisant un étalon interne
Reference number
ISO 11494:2019(E)
©
ISO 2019
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SIST EN ISO 11494:2019
ISO 11494:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 11494:2019
ISO 11494:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Equipment . 2
7 Sampling . 2
8 Procedure. 2
8.1 Internal standard solution . 2
8.2 Calibration solutions . 2
8.3 Sample solutions . 2
8.4 Preparation of the platinum alloy solution containing ruthenium, iridium, or tungsten . 3
8.5 Measurements . 3
9 Calculation and expression of results . 3
9.1 Calculation . 3
9.2 Repeatability . 5
10 Test report . 5
Bibliography . 6
© ISO 2019 – All rights reserved iii
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SIST EN ISO 11494:2019
ISO 11494:2019(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see
www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 174, Jewellery and precious metals.
This third edition cancels and replaces the second edition (ISO 11494:2014), which has been technically
revised.
The main changes compared to the previous edition are as follows:
a) the definition of bracketing in Clause 3 has been removed;
b) the recommended lines in Clause 4 have been removed;
c) reagents in Clause 5 have been changed and removed, and the requirements a
...
SLOVENSKI STANDARD
oSIST prEN ISO 11494:2019
01-marec-2019
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]XSRUDERQRWUDQMHJDVWDQGDUGQHJDHOHPHQWD ,62',6
Jewellery and precious metals - Determination of platinum in platinum alloys - ICP-OES
method using an internal standard element (ISO/DIS 11494:2018)
Schmuck und Edelmetalle - Bestimmung von Platin in Platinschmucklegierungen - ICP-
OES-Verfahren unter Verwendung eines internen Standardelements (ISO/DIS
11494:2018)
Joaillerie et métals précieux - Dosage du platine dans les alliages de platine - Méthode
par l'ICP-OES, utilisant un étalon interne (ISO/DIS 11494:2018)
Ta slovenski standard je istoveten z: prEN ISO 11494
ICS:
39.060 Nakit Jewellery
oSIST prEN ISO 11494:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 11494:2019
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oSIST prEN ISO 11494:2019
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11494
ISO/TC 174 Secretariat: DIN
Voting begins on: Voting terminates on:
2018-12-31 2019-03-25
Jewellery and precious metals — Determination of
platinum in platinum alloys — ICP-OES method using an
internal standard element
Joaillerie et métals précieux — Dosage du platine dans les alliages de platine — Méthode par l'ICP-OES,
utilisant un étalon interne
ICS: 39.060
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 11494:2018(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2018
---------------------- Page: 3 ----------------------
oSIST prEN ISO 11494:2019
ISO/DIS 11494:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
---------------------- Page: 4 ----------------------
oSIST prEN ISO 11494:2019
ISO/DIS 11494:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Equipment . 2
7 Sampling . 2
8 Procedure. 2
8.1 Internal standard solution . 2
8.2 Calibration solutions . 2
8.3 Sample solutions . 2
8.4 Preparation of the platinum alloy solution containing ruthenium, iridium, or tungsten . 3
8.5 Measurements . 3
9 Calculation and expression of results . 3
9.1 Calculation . 3
9.2 Repeatability . 5
10 Test report . 5
© ISO 2018 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 11494:2019
ISO/DIS 11494:2018(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 174, Jewellery and precious metals.
This third edition cancels and replaces the second edition (ISO 11494:2014), which has been technically
revised.
The main changes compared to the previous edition are as follows:
a) removed the definition of bracketing in clause 3;
b) removed the recommended lines in clause 4;
c) changed and removed reagents in clause 5 and changed the requirements about yttrium in 5.4;
d) changed the preparation of the preparation of the internal standard solution in 8.1;
e) changed the list of standards to be prepared and precisions about qualification of them by linearity
as well as way to choose the low and high standards in 8.2;
f) removed the way of preparation by aliquots for both standard and sample solutions in 8.2 and 8.3;
g) changed the preparation of both standard and sample solutions in 8.2 and 8.3;
h) added precisions about quantity of acids to be used in case of dissolution under pressure in 8.4;
i) added of the definition of bracketing and recommended lines in 8.5;
j) adapted of the formulas in 8.6 after having removed the way of preparation by aliquots;
k) removed the emission line as an information to be mentioned in the test report in clause 10;
l) document editorially revised.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved
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oSIST prEN ISO 11494:2019
ISO/DIS 11494:2018(E)
Introduction
The following definitions apply in understanding how to implement an ISO International Standard and
other normative ISO deliverables (TS, PAS, IWA):
— “shall” indicates a requirement;
— “should” indicates a recommendation;
— “may” is used to indicate that something is permitted;
— “can” is used to indicate that something is possible, for example, that an organization or individual
is able to do something.
ISO/IEC Directives, Part 2 (sixth edition, 2011), 3.3.1 defines a requirement as an “expression in the
content of a document conveying criteria to be fulfilled if compliance with the document is to be claimed
and from which no deviation is permitted.”
ISO/IEC Directives, Part 2 (sixth edition, 2011), 3.3.2 defines a recommendation as an “expression in the
content of a document conveying that among several possibilities one is recommended as particularly
suitable, without mentioning or excluding others, or that a certain course of action is preferred but not
necessarily required, or that (in the negative form) a certain possibility or course of action is deprecated
but not prohibited.”
© ISO 2018
...
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