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  Jewellery
Possibility to assess jewellery and accessories such as :

n

Trendy jewellery (gold flashed, gold plated, silver plated, rhodium plated..)

n

Buttons, closing devices (clasps)

n

Piercings

n

Metallic components for leather goods

n

Medals, badges

n

Cutlery

n

Gold plate

n Packaging for luxury goods
   
   

 

Pitting corrosion (on plated piece)

Specific tests for jewellery and accessories

n

Coating thickness and adhesion

n

Composition and fineness of precious coatings

n

Sunlight test (UV)

n

Corrosion tests (artificial sweat, salt spray, tropical climate)

n

Thioacetamide corrosion test

n

Wear test

n

Mechanical behaviour (tensile, bend, impact)

n

Mechanical resistant of glued bonds

n

Nickel release test (allergy)

n

Agreement with national and international regulations on allergenics and toxical substances (Hexavalent chromium, azo dyes, PCP, TCP, formaldehyde)

n

Accelerated ageing tests (corrosion, wear, sulphurizing)

   

Sulphurizing on silver

Corrosion

Our sections : 
- Consultancy in
electroplating
- Chemistry
- Chronofiable
- Leathers and polymers
- Materials
- Tribology

Our main services : 

- Allergenics and toxics
- Technical assistance
- Jewellery
- Chronofiable®
- Contaminants, cleanliness
- Corrosion
- Leathers
- JPR Kit
- Electroplating
- Climate tests
- Reliability
- Training
- Horological exterior
- Materials
- SEM
- Metallography
- Watch movements and watch heads
- Polymers, elastomers
- Coatings
- Wear tests

About nickel : 

- Nickel allergy
- Nickel allergy caused by jewels
- European regulation and standards
 
 
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