СПОСОБ КАЛИБРОВКИ РН-МЕТРОВ

摘要

FIELD: thermal and nuclear power stations; meter calibration in extremely pure water of condensate type and power unit feedwater. ^ SUBSTANCE: for pH-meter calibration ammonia whose concentration varies by 1.5 - 2 times is dosed in working medium. Electric conductivity and temperature of working-medium H-cationized sample are measured. Measurement results are processed in computer with aid of set of equations characterizing ionic equilibrium in source sample and H-cationized samples. Calculated pH value is compared with measurement results. ^ EFFECT: enhanced precision and reliability of meter calibration in extremely pure waters. ^ 1 cl, 1 dwg, 1 tbl