A method of reducing the quantity of lead released by bronze and/or brass water-system components into liquids that are intended for human consumption

摘要

A method of reducing the quantity of lead released by water-system components made of metal alloys containing lead when they are in contact with liquids intended for making beverages for human use comprises at least the following steps in sequence:- preliminary reduction of the quantity of lead contained in the material constituting the components,- coating of the components thus treated, at least on the surface which is to come into contact with the liquids, by the chemical deposition of a tin layer,- coating of the water-system components, at least on their surface that was treated by the deposition of the tin layer, by the electrolytic deposition of a covering metal alloy.