EN ISO 11494:2016

SLOVENSKI STANDARD
01-december-2016
1DNLW'RORþHYDQMHSODWLQHY]OLWLQDK]DQDNLWL]SODWLQH0HWRGD,&32(6]
XSRUDERLWULMDNRWQRWUDQMHJDVWDQGDUGQHJDHOHPHQWD,62
Jewellery - Determination of platinum in platinum jewellery alloys - ICP-OES method
using yttrium as internal standard element (ISO 11494:2014)
Schmuck - Bestimmung von Platin in Platinschmucklegierungen - ICP-OES Verfahren
unter Verwendung von Yttrium als Internem Standardelement (ISO 11494:2014)
Joaillerie, bijouterie - Dosage du platine dans les alliages de platine pour la joaillerie,
bijouterie - Méthode par ICP-OES utilisant l'yttrium comme étalon interne (ISO
11494:2014)
Ta slovenski standard je istoveten z: EN ISO 11494:2016
ICS:
39.060 Nakit Jewellery
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11494
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2016
EUROPÄISCHE NORM
ICS 39.060
English Version
Jewellery - Determination of platinum in platinum
jewellery alloys - ICP-OES method using yttrium as
internal standard element (ISO 11494:2014)
Joaillerie, bijouterie - Dosage du platine dans les Schmuck - Bestimmung von Platin in
alliages de platine pour la joaillerie, bijouterie - Platinschmucklegierungen - ICP-OES Verfahren unter
Méthode par ICP-OES utilisant l'yttrium comme étalon Verwendung von Yttrium als Internem
interne (ISO 11494:2014) Standardelement (ISO 11494:2014)
This European Standard was approved by CEN on 26 August 2016.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11494:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 11494:2014 has been prepared by Technical Committee ISO/TC 174 “Jewellery” of the
International Organization for Standardization (ISO) and has been taken over as EN ISO 11494:2016.
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 2017, and conflicting national standards shall be
withdrawn at the latest by April 2017.
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.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11494:2014 has been approved by CEN as EN ISO 11494:2016 without any modification.

INTERNATIONAL ISO
STANDARD 11494
Second edition
2014-12-01
Jewellery — Determination of
platinum in platinum jewellery alloys
— ICP-OES method using yttrium as
internal standard element
Joaillerie, bijouterie — Dosage du platine dans les alliages de platine
pour la joaillerie, bijouterie — Méthode par ICP-OES utilisant
l’yttrium comme étalon interne
Reference number
ISO 11494:2014(E)
©
ISO 2014
ISO 11494:2014(E)
© ISO 2014
All rights reserved. Unless otherwise specified, 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
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 2014 – All rights reserved

ISO 11494:2014(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 . 3
8.3 Sample solution . 3
8.4 Preparation of the platinum alloy solution containing ruthenium, iridium, or tungsten . 3
8.5 Measurements . 3
8.6 Calculation and expression of results. 4
9 Repeatability . 7
10 Test report . 7
Bibliography . 8
ISO 11494:2014(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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 174, Jewellery.
This second edition cancels and replaces the first edition (ISO 11494:2008), which has been technically
revised with the following changes:
a) change in the scope that this method is the referee method;
b) addition of a warning in Clause 8 that suitable health and safety procedures should be followed;
c) addition of a standard solution in 8.1;
d) addition of an alternative calibration solution in 8.2.2;
e) addition of an alternative sample solution in 8.3.2;
f) addition of an alternative route for calculation in 8.6.4;
g) International Standard editorially revised.
iv © ISO 2014 – All rights reserved

ISO 11494:2014(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.”
INTERNATIONAL STANDARD ISO 11494:2014(E)
Jewellery — Determination of platinum in platinum
jewellery alloys — ICP-OES method using yttrium as
internal standard element
1 Scope
This International Standard describes a method for the determination of platinum in platinum jewellery
alloys, preferably within the range of fineness specified in ISO 9202, by means of inductively coupled
plasma optical emission spectrometry (ICP-OES).
This method applies to platinum jewellery alloys that might contain silver, indium, iridium, gallium,
copper,
...