November 1998 Issue
In our September issue, in an article on water filters that contain lead, we said that brass is an alloy of copper and lead. It is, of course, principally an alloy of copper and zinc, though other metals are also added. Until recently, the brass used in plumbing typically contained 85% copper, 5% zinc, 5% tin and 5% lead, according to the Environmental Quality Institute at the University of North Carolina in Asheville.
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