The legal titles of gold works and the legal titles of silver or platinum works are as follows:
a) 999 thousandths, 916 thousandths, 750 thousandths, 585 thousandths and 375 thousandths for gold articles;
b) 999 thousandths, 925 thousandths and 800 thousandths for silver articles;
c) 999 thousandths, 950 thousandths, 900 thousandths and 850 thousandths for platinum articles.
Iridium associated with platinum is counted as platinum.
No negative tolerance of title is allowed.
The title of articles is guaranteed by the State, by State-approved control bodies or by professionals authorised by an agreement concluded with the customs and indirect rights administration.