B.O.D. Aerator, Wheaton
Useful in determining inorganic forms of mercury and organic mercurials in drinking, surface and saline waters, as well as domestic and industrial wastes. The aerator has a 40 - 60 micron porosity cylindrical glass frit that provides even bubble distribution. Manufactured from Wheaton "200" low extractable borosilicate glass (meets ASTM Type I, Class A and USP Type I standards). Reference: U.S. EPA Method 245.1, "Manual Cold Vapor Technique."