2023UNE-EN 1811:2023 Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin
2016UNE-EN 1811:2011+A1:2016 Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin
2008UNE-EN 1811:1999+A1:2008 Reference test method for release of nickel from products intended to come into direct and prolonged contact with the skin
1999UNE-EN 1811:1999 REFERENCE TEST METHOD FOR RELEASE OF NICKEL FROM PRODUCTS INTENDED TO COME INTO DIRECT AND PROLONGED CONTACT WITH THE SKIN