Nickel Release

Allergy to nickel is a common cause of contact dermatitis and about 10% of people in the Western Europe and North America are sensitive to nickel. Initial sensitization frequently occurs from jewellery such as ear studs and other body piercings. Once sensitised, an individual can develop contact dermatitis even in short-term contact with nickel-containing products.
 
 
Testing Standards & Regulations:
 

Standards	Standard requirements
GB11887	1、Pierced ears or other pierced human body parts, shall NOT exceed 0.05% 2、Direct and prolonged contact with the skin should be less than 0.5µg/cm²/week
GB28480	Metal： 1.  Body pierced：0.2 μg/cm 2 /week 2.  Direct contact with the skin：0.5 μg/cm 2 /week
REACH XVII	1、Pierced ears or other pierced human body parts, shall NOT exceed 0.2µg/cm2/week 2、Direct and prolonged contact with the skin should be less than 0.5µg/cm²/week
ASTM F2999	Metal： 1.  Body pierced：No limit（refer to 0.2 μg/cm 2 /week） 2.  Direct contact with the skin：No limit（refer to 0.5 μg/cm 2 /week）
ASTM F2923	1、Pierced ears or other pierced human body parts, shall NOT exceed 0.2µg/cm2/week 2、Direct and prolonged contact with the skin should be less than 0.5µg/cm²/week