U.S. Safe Drinking Water Act (1996) and the Lead and Copper Rule (1991) - HENCE, before 1991 all copper may be potentially tainted. Tell all those distilleries that have their pots before 1991, oh but they are grandfathered in...
ANSI/NSF 61: Drinking Water System Components-Health Effects
This is the health standard for all plumbing products and materials that come in contact with potable water. Copper water tube, copper fittings, and copper and brass plumbing valves and fixtures are covered by NSF Standard 61. The...