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  Corrosion
Salt spray test

The purpose of this test is to expose the surfaces of the items to a salt spray produced by a 5% Sodium Chloride solution at 35°C.
According to SN EN ISO 9227, tests can be performed in 3 different conditions :
 

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NSS :

 Neutral Salt Spray

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AASS :

 Acetic Acid Salt Spray

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CASS :

 Cupro Acetic Salt Spray

Such test allows to simulate environmental exposure conditions such as on sea side, in industrial surroundings, etc…


Rust building on a screw

Thioacetamide corrosion test

The purpose here is to qualify the behaviour of an item when exposed to sulphur products.

Typical interests are for :

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Behaviour of silver coated jewels (silver plated / rhodium plated)

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Behaviour of bulk alloys, such as precious metals

   

Thioacetamide test

Sulphurizing of a particle on a bulk gold jewel
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