Test No. 106: Adsorption -- Desorption Using a Batch Equilibrium Method

According to FAO and the US system (85).§ The respective variables should preferably show values within the range given.If, however, difficulties in finding appropriate soil material occur, values below the indicated minimum are accepted.‡ Soils with less than 0.3% organic carbon may disturb correlation between organic content and adsorption.Thus, it is recommended the use of soils with a minimum organic carbon content of 0.3%.