Cleaning steps: Clean with purified water, and then rinse with purified water;
Soak the ceramic pump with 1-3%NAOH for 5-15 minutes, which is equivalent to pyrogen removal, and then rinse with injected water.
Sterilization steps: Use high-pressure humid heat steam for sterilization. The sterilization temperature is 121℃, the pressure is 0.1MPA, and the time is 30 minutes (recommended time).
Precautions for cleaning and sterilization:
(I)shall not use fluorine containing chemical solution and stainless steel war, to prevent corrosion of stainless steel parts; When washing, do not pull the ceramic column or plug of the ceramic metering component in the hot water higher than 40℃. The ceramic plug should be removed for washing. Ceramic rod and ceramic plug cannot be exchanged during the washing process; During sterilization, the rotary valve, ceramic plug and metering rod should be placed away in the special washing sterilization box, and the ceramic rod and ceramic plug should be vertically hung for humid heat sterilization; After sterilization, the pump body temperature should be reduced to room temperature before placement operation; Before the pump body temperature drops to room temperature, it should refrain from sudden cooling resulting in pump body cracking and deformation.
(II) If there is yellow dirt in the ceramic pump body and the liquid part, it can be soaked in 10% oxalic acid for 0.5-1 hours, and then washed with water for injection; Because the hardness of ceramic is greater than stainless steel, ceramic and stainless steel war can make the ceramic appearance adhesion to stainless steel, can not be processed clean, probably lead to the filling pump is not smooth or can not move, resulting in damage. Initiate washing and sterilization using non-metallic materials (such as tetrafluoroethylene) as storage containers; When the plunger sleeve, plunger, and slot valve are removed from the mechanical preparation, please put the plunger sleeve vertically, and the plunger slot valve is tied with a rope in the air vertically by gravity to prevent deformation.