FIELD: chemistry.
SUBSTANCE: method includes the operations of immersing the metal equipment in a solution of the reagent in the bottom part of the sealed container, filling the upper part of the sealed container with inert gas, ageing the equipment in the reagent, dosing the oxidant in the reagent, and ageing the metal equipment in the solution of reagent and oxidant. At the same time, after the termination of supplying oxidant to the reagent, the concentration of oxygen emitted from a solution of the reagent and oxidant is measured, and the process of cleaning the metal equipment is completed after reducing the oxygen concentration to a time-constant value.
EFFECT: minimization of the cleaning time of the metal equipment from contamination containing lead.
8 cl, 3 tbl, 2 ex
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