Low-Yield Clays 1
Low-Yield Clays 1 : Commercial clays chiefly of the calcium montmorillonite type having a yield in the range of 15 to 30 bbl/ton (2.63 to 5.25 m3/t) usually refers to per cent by weight. If per cent by volume is means, it should be so stated. (Bul 10C)