How to use the lower exhaust sterilizer?

The lower exhaust pressure steam sterilizer is suitable for the sterilization of various cotton cloth, metal, enamel, glass and other products and aqueous solutions Some articles, such as grease, wax, paraffin, Vaseline, ointment, powder, etc., are not easy to be sterilized by this method because of their poor sterilization effect due to their hard steam penetration If this method must be used, the sterilization time shall be extended Some articles are easy to be damaged under high temperature, high pressure or humidity, such as gelatin sponge, fur, heat-resistant plastics, chemical fiber products, precision instruments, etc., so this method is not suitable for sterilization The following is a brief introduction of how to operate the lower exhaust pressure steam sterilizer, as follows: 1 Put the items to be sterilized into the sterilization cabinet room, close the cabinet door and fasten it; 2 Open the air inlet valve and preheat the steam through the interlayer 3 When the mezzanine pressure reaches 102.9kpa (1.05kg / cm2), adjust the control valve to the "sterilization" position and steam into the sterilization room The cold air and condensate in the cabinet will be discharged automatically through the air stopper in the cabinet room The pressure in the 4 cabinets is 102.9kPa (1.05kg/cm2), the temperature is up to 121C, and the temperature is maintained at 20 to 30min 5 dry articles are needed After sterilization, the control valve is adjusted to the "dry" position, the steam is drawn out, the chamber is negative pressure, and the drying requirement is maintained for a certain period of time 6 For liquid articles, wait for natural cooling to below 60 ~ C then open the door to collect the articles, and do not use the quick exhaust steam method to prevent sudden decompression, violent boiling of liquid or explosion of container: