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

Status
Published
Public Enquiry End Date
24-Mar-2019
Publication Date
16-Sep-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Sep-2019
Due Date
11-Nov-2019
Completion Date
17-Sep-2019

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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

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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.

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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
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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
...

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