Arsenic (as As), not more than 3 milligrams per kilogram (mg/kg) (3 parts per million (ppm)).
Lead (as Pb), not more than 5 mg/kg (5 ppm).
Mercury (as Hg), not more than 1 mg/kg (1 ppm).
Arsenic (as As), not more than 5 parts per million.
Lead (as Pb), not more than 20 parts per million.
Mercury (as Hg), not more than 3 parts per million.
21 C.F.R. §73.200