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The leaching of nickel from new and used metal spectacle frames
Author(s) -
Walsh Glyn,
Mitchell John W. C.
Publication year - 1998
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1046/j.1475-1313.1998.00384.x
Subject(s) - dimethylglyoxime , nickel , spectacle , leaching (pedology) , chemistry , environmental science , economics , metallurgy , materials science , soil science , market economy , soil water
Summary 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 (British Standard 6625, 1985) although all our suppliers believed that their frames conformed with BS 6625 (1985).