AS 2140-2008

1 - AS 2140-2008 JEWELLERY-FINENESS OF PRECIOUS METAL ALLOYS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
6 - 3.1 Alloy
6 - 3.2 Base metal
6 - 3.3 Fineness
6 - 3.4 Precious metal
7 - 3.5 Range of fineness
7 - 4 COMPOSITION
7 - 5 DESIGNATION OF PRECIOUS METAL CONTENT
7 - 5.1 Method
7 - 5.2 Symbol
8 - 6 BASE METALS
8 - 6.1 General
8 - 6.2 Use of base metals in jewellery
8 - 7 SOLDERS
8 - 7.1 General
8 - 7.2 Gold alloy solder
8 - 7.3 Silver alloy solder
8 - 7.4 Platinum alloy solder
9 - 7.5 Palladium alloy solder
9 - 7.6 Cadmium bearing solders
9 - 8 SYMBOLS
9 - 8.1 General
9 - 8.2 Gold symbol
9 - 8.3 Silver symbol
9 - 8.4 Platinum symbol
10 - 8.5 Palladium symbol
10 - 9 MARKING REQUIREMENTS
10 - 9.1 General
10 - 9.2 Location of marking
10 - 9.3 Marking of mixed metal articles
10 - 9.4 Marking of small articles
11 - 10 DETERMINATION OF PRECIOUS METAL CONTENT
11 - 10.1 General
11 - 11 ELEMENTS AND METALS TO BE RESTRICTED IN JEWELLERY ALLOYS
11 - 11.1 General
11 - 11.2 Hazardous materials
11 - 11.3 Metals causing allergies
13 - APPENDIX A - USE OF SYMBOLS
14 - APPENDIX B - GUIDE TO COMPARING THE MILLESIMAL FINENESS OF GOLD WITH PREVIOUS CARAT DESIGNATION
15 - APPENDIX C - MIXED METAL AND ALLOY MARKING RECOMMENDATIONS
15 - C1 EXAMPLE 1-Gold, titanium and platinum
15 - C2 EXAMPLE 2-Titanium, silver and gold

Specifies the composition and marking requirements of articles made from precious metals and the marking requirements for mixed metal articles.

This Standard sets out the composition and marking requirements for precious metal articles, including articles of jewellery.NOTE: This specification does not apply to articles intended for industrial purposes.

Originated in part as AS 2140-1978 and AS 2141-1978.
Revised, amalgamated and designated as AS 2140-2008.