FIG. 1.

MTS resistometer. A, Main vessel; B, agitation motor; C, cooling coil; D, fraction collector; E, pH meter; F, MTS resistometer main unit; G, ultrasound generator; 1 and 3, top and bottom caps, respectively; 2, pH electrode; 4, vacuum inlet; 5, pressure inlet; 6, pH electrode pressurized housing; 7, main agitation shaft; 8, temperature sensor; 9, heating element; 10, temperature sensor; 11, manometer; 12, automatic injection syringe; 13, sonication horn and housing; 14, treatment chamber; 15, filling-emptying tube; 16, one-way inverted sense valve; 17, solenoid sampling valve; 18, photocell detector.