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Dry information sharing | Ultraviolet sterilization operation guide

Publish Time: 2024-07-29     Origin: Site

Ultraviolet (UV) sterilization is a common sterilization method without chemical pollution that uses short-wavelength ultraviolet radiation (especially UVC wavelength between 200-280 nm) to prevent the reproduction and growth of microorganisms by destroying their DNA or RNA.


Preparation

Before UV sterilization, the following preparations need to be performed:
Cleaning: Clean the surface or space to be sterilized to remove dust and organic matter that will protect microorganisms from UV light.
Safety: Ensure that all personnel understand the procedures and hazards of ultraviolet sterilization and avoid direct exposure to UVC light, which is harmful to skin and eyes.

Determine the sterilization area

Depending on the sterilization objects, choose the appropriate sterilization method:
Space sterilization: Confirm that the UV lamp is positioned to cover the entire laboratory space.
Object surface sterilization: Place the object under an ultraviolet light source to ensure that the light can directly illuminate the object surface.

Use UV light

Choose the appropriate UV lamp (usually UVC lamp) and determine the time required for sterilization based on the intensity of the lamp, distance, and the material and shape of the object to be sterilized. Routine sterilization time usually ranges from a few minutes to half an hour.


Sterilize

Turn on the UV light and make sure no one is in the room or can directly see the UV light. Keep the UV lamp on and set the sterilization time. For large rooms or complex objects, it may be necessary to move the lamp or object to ensure that all areas are fully illuminated.


Operation after sterilization

After the scheduled sterilization time, turn off the UV lamp. If UV lamps are used in enclosed spaces, they should be ventilated after sterilization to remove any ozone that may have been produced.


security measures

Protective clothing, goggles and gloves must be worn when operating UV lamps. During the operation of the UV lamp, a warning sign should be placed outside the door or in a conspicuous position to prevent accidental entry.



UV sterilization is an effective sterilization method, but please be aware of its limitations! UV light cannot penetrate objects and therefore is only effective at killing microorganisms directly exposed to the light. Sterilization may not be effective for objects that are shaded or opaque. In addition, the sterilization effect of ultraviolet lamps decreases with time, so the bulbs need to be checked and replaced regularly.

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