A 46-year-old patient complains of mastication disorder caused by the lack of the 34, 35, and 36 teeth. The antecedent anamnesis is as follows: the teeth were extracted 3 months ago due to complication of cariosity. The patient anamnesis: the history of tonsillitis, rheumatoid arthritis and Botkin’s disease. After the appointment with this patient the instruments should be sterilized in the following way: