To meet European standards for purity, Jost Chemical Co. (Overland, MO) manufactures mineral salts with very low levels of Heavy Metals. Each of the 25 plus chemical salts has a specification for Pb, Cd, and As of 1 ppm maximum and Hg of 0.1 ppm maximum. For a complete list of products and specifications, visit www.jostchemical.com/uplhm.html.


