_
Our laboratory is OCA approved. In this context, we support you in your efforts to comply with French regulations on the guarantee of precious metals.

_
If you are the representative of the guarantee mark, you are required to have a quota of your works analyzed by an OCA laboratory.

_
Mechanical punching is the economical and traditional solution.

The laser punching allows an unequaled fineness of engraving without any risk of deformation for your works. The punching service is accompanied by a touch control. This touch control is included in the count of your non-destructive controls if you are delegated.

_
We specialize in the analysis of gold by cupellation (NF ISO EN 11426), silver by potentiometry (NF EN ISO 11427) and platinum by ICP-bracketing (NF EN ISO 11494).

_
We can reliably determine the composition of any type of object, and on any type of matrix (solid, liquid, powder).

_
For this, we use state-of-the-art equipment (ICP-AES, X-ray fluorescence spectrometry, etc.), which allows us to adapt to your requests, from the simplest to the most elaborate.

_
We carry out compliance tests according to the European REACH regulation, relating to the restriction of nickel, lead, cadmium and chromium in jewelry.

_
These analyzes can be done separately or as a package of a complete service. These tests are compulsory for imports from countries outside the European Union.

_
We also offer various physical tests such as measuring the plating thickness or measuring the hardness of an alloy.