Lead migration from lead crystal stemware has been determined by square wave stripping voltammetry. The article under test is filled with 4% (v/v) acetic acid, the solution recommended by ISO 7086:1, and allowed to stand for 24 hours at 22 deg C. The deposition is carried out at -07V vs an Ag/AgCl reference electrode for three minutes. Time of deposition may be varied depending on the quantity of lead leached. Lead is determined using the method of standard additions.
Origin
National University Of Ireland
Journal Title
Michael.J.Hynes@Ucg.Ie
Sector
Domestic glass
Class
D 747