Jewellery and precious metals - Determination of silver in silver alloys - Potentiometry using potassium bromide (ISO/DIS 11427:2023)

This document specifies a volumetric method for the determination of silver on a material considered homogeneous. The silver content of the sample lies preferably between (100 and 999,0) parts per thousand (‰) by mass. Fineness above 999,0 ‰ can be determined using a spectroscopy method by difference (e.g. ISO 15096).
This method is intended to be used as the reference method for the determination of fineness in alloys covered by ISO 9202.

Schmuck und Edelmetalle - Bestimmung von Silber in Silberlegierungen - Potentiometrie unter Verwendung von Kaliumbromid (ISO/DIS 11427:2023)

Joaillerie, bijouterie et métaux précieux - Dosage de l’argent dans les alliages d’argent - Méthode potentiométrique utilisant le bromure de potassium (ISO/DIS 11427:2023)

Le présent document spécifie une méthode volumétrique de dosage de l'argent sur un matériau considéré comme homogène. La teneur en argent des échantillons est de préférence comprise entre 100 et 999,0 millièmes (‰) en masse. Les titres supérieurs à 999,0 ‰ peuvent être déterminés à l’aide d’une méthode de spectroscopie par différence (par exemple, ISO 15096).
Cette méthode est destinée à être utilisée comme méthode de référence pour la détermination du titre dans les alliages couverts par l’ISO 9202.

Nakit in plemenite kovine - Določevanje srebra v zlitinah srebra - Potenciometrična metoda z uporabo kalijevega bromida (ISO/DIS 11427:2023)

General Information

Status
Not Published
Public Enquiry End Date
04-Jun-2023
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
27-Mar-2023
Due Date
14-Aug-2023
Completion Date
05-Jun-2023

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SLOVENSKI STANDARD
oSIST prEN ISO 11427:2023
01-maj-2023
Nakit in plemenite kovine - Določevanje srebra v zlitinah srebra - Potenciometrična
metoda z uporabo kalijevega bromida (ISO/DIS 11427:2023)
Jewellery and precious metals - Determination of silver in silver alloys - Potentiometry
using potassium bromide (ISO/DIS 11427:2023)
Schmuck und Edelmetalle - Bestimmung von Silber in Silberlegierungen - Potentiometrie
unter Verwendung von Kaliumbromid (ISO/DIS 11427:2023)
Joaillerie, bijouterie et métaux précieux - Dosage de l’argent dans les alliages d’argent -
Méthode potentiométrique utilisant le bromure de potassium (ISO/DIS 11427:2023)
Ta slovenski standard je istoveten z: prEN ISO 11427
ICS:
39.060 Nakit Jewellery
oSIST prEN ISO 11427:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 11427:2023

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oSIST prEN ISO 11427:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11427
ISO/TC 174 Secretariat: DIN
Voting begins on: Voting terminates on:
2023-03-14 2023-06-06
Jewellery and precious metals — Determination of silver in
silver alloys — Potentiometry using potassium bromide
ICS: 39.060
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
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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 11427:2023(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 2023

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oSIST prEN ISO 11427:2023
ISO/DIS 11427:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11427
ISO/TC 174 Secretariat: DIN
Voting begins on: Voting terminates on:

Jewellery and precious metals — Determination of silver in
silver alloys — Potentiometry using potassium bromide
ICS: 39.060
This document is circulated as received from the committee secretariat.
COPYRIGHT PROTECTED DOCUMENT
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
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CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 11427:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
  © ISO 2023 – All rights reserved
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

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oSIST prEN ISO 11427:2023
ISO/DIS 11427:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle .
...

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