The use methods and precautions of high-pressure steam sterilization

2012-02-01

The use methods and precautions of high-pressure steam sterilization.

Use

(1) in the outer pot and add the right amount of water, will require sterilization of goods into inner pot, cover the lid and symmetrically twisted tight spiral.

(2) to heat the pan to create steam, when the pressure gauge pointer to 33.78kPa, open exhaust valve, the cold air discharge, pressure gauge pointer down at this time, when the pointer down to zero, will soon exhaust valve closed.

(3) continue to heat, steam pot increased pressure gauge pointer to rise to the required pressure when the pressure pot, it will reduce the fire, according to the characteristics of the sterilized items, so that the pressure required to maintain a certain vapor pressure of time , then the sterilizer power or off the fire, let it cool and then slowly open the exhaust valve to exclude the residual gas before opening the lid extract.

2. Note:

(1) Place the items to be sterilized should not be too tight.

(2) must be fully ruled out the cold air, or pot to a temperature of less than the required temperature, affect the sterilization effect.

(3) after sterilization, can not put gas decompression, or bottle of liquid will be intense boiling, wash away the cork and cause spills or even burst the container. Subject to the pressure sterilizer reduced to atmospheric pressure before opening the lid after the same.

(4) loading the tube or bottle of medium cotton stuffed, should be oiled paper or brown paper bag to prevent condensation water from entering.

(5) In order to ensure sterilization, and should regularly check the sterilization effect of common method is to sulfur powder (melting point 115 ¡æ), or benzoic acid (melting point 120 ¡æ) placed in a test tube, then sterilization test. If the material melts, it indicates high-pressure steam sterilizer has reached the temperature required, sterilization effect is reliable. Can also detect sterilization effect of tape (on which there are temperature-sensitive indicator) affixed to the packaging of items to be sterilized, such as adhesive tape color indicator also indicates that sterilization effect is reliable.

(6) now has microcomputer control of the high-pressure steam sterilizer, just put to air, the instrument automatically constant time, the time comes will automatically cut off power and whistle, easy to use.

3. Application: for the most commonly used sterilization methods, generally 101.33kPa handle 15 ~ 20min, can achieve the purpose of sterilization of the items. Where the temperature and humidity of items, such as the common medium, normal saline, clothing, gauze, glass and equipment are all available sterilization law.

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