The leaching of nickel from new and used metal spectacle frames.
Fifty "used" and 373 new spectacle frames were tested for evidence of nickel release using dimethylglyoxime and ammonia. Nearly all the "used" frames (96%) tested positive. A lower proportion (24.5%) of new frames showed evidence of nickel leaching. It is suggested that this is evidence of non-conformance with the current British Standard although all our suppliers believed that their frames conformed with BS 6625 (1985).
Walsh
G
G
Department of Vision Sciences, Glasgow Caledonian University.
Mitchell
J W
JW
D003877:Dermatitis, Contact / Q000209:etiology; D017453:Dermatitis, Irritant / Q000209:etiology; D005139:Eyeglasses / Q000592:standards; D006801:Humans; D009532:Nickel / Q000032:analysis*
D009532:Nickel