ISO 6893

Jewellery and precious metals — Inspection of batches of small diamonds — Terminology, classification and test methods

Joaillerie, bijouterie et métaux précieux — Contrôle des lots de petits diamants — Terminologie, classification et méthodes d’examen

General Information

• Status: Not Published
• ICS: 01.040.39 - Precision mechanics. Jewellery (Vocabularies)
• ICS: 39.060 - Jewellery
• Technical Committee: ISO/TC 174 - Jewellery and precious metals
• Drafting Committee: ISO/TC 174 - Jewellery and precious metals
• Current Stage: 6000 - International Standard under publication
• Completion Date: 12-Mar-2024

Standards Content (Sample)

International
Standard
ISO 6893
First edition
Jewellery and precious metals —
Inspection of batches of small
diamonds — Terminology,
classification and test methods
Joaillerie, bijouterie et métaux précieux — Contrôle des lots
de petits diamants — Terminologie, classification et méthodes
d’examen
PROOF/ÉPREUVE
Reference number
ISO 6893:2024(en) © ISO 2024

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ISO 6893:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO 2024 – All rights reserved
ii

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ISO 6893:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General . 3
4.1 Batch specifications and characteristics .3
4.2 Inspection .3
5 Authentication . 4
6 Sieving . 4
6.1 General .4
6.2 Estimating the total mass of a small diamond batch by sieving and counting .4
6.3 Estimating a batch size by sieving and weighing .4
6.4 Sieving small diamonds .4
6.4.1 Method . .4
6.4.2 Using sieving plates in a correct order .5
6.4.3 Maximum size of a sieved batch .5
6.4.4 Preventing damages of sieved diamonds .5
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ISO/PRF 6893:2024(en)
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Date: 2024-01-22
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ISO/TC 174/WG 2
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Secretariat: DIN
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Date: 2024-xx
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Jewellery and precious metals — Inspection of batches of small
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diamonds — Terminology, classification and test methods
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St l D fi iti

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ISO 6893:2024(en) Formatted: Left
Formatted: Right: 1.5 cm, Bottom: 1 cm, Gutter: 0 cm,
© ISO 2024
Header distance from edge: 1.27 cm, Footer distance
from edge: 0.5 cm
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,
Commented [eXtyles1]: The reference "ISO 2024" is to a
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO withdrawn standard
at the address below or ISO’s member body in the country of the requester.
Formatted: Default Paragraph Font
ISO copyright office Formatted: Default Paragraph Font
CP 401 • Ch. de Blandonnet 8
Formatted: Adjust space between Latin and Asian text,
CH-1214 Vernier, Geneva
Adjust space between Asian text and numbers
Phone: + 41 22 749 01 11
Formatted: French (Switzerland)
EmailE-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Formatted: French (Switzerland)
Formatted: French (Switzerland)
Published in Switzerland
Formatted: Footer, Left, Space After: 0 pt, Tab stops:
Not at 17.2 cm
© ISO 2024 – All rights reserved
ii

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ISO/PRF 6893:2024(en)
Formatted: Font: 11 pt, Bold, Font color: Auto
Formatted: Font: 11 pt, Bold, Font color: Auto
Formatted: Font: 11 pt, Bold
Contents
Formatted: HeaderCentered, Left, Space After: 0 pt,
Line spacing: single
Foreword . vii
Introduction . viii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General . 3
4.1 Batch specifications and characteristics . 3
4.2 Inspection . 4
5 Authentication . 4
6 Sieving . 5
6.1 General .
...