10. Wearing slippers
Wearing slippers on any occasions: near acid tanks, low-temperature laboratories, slippery places with plenty of water, and when climbing up and down stairs, it is easy to fall and get injured.
WHO Laboratory Biosafety Manual Version 2: Preventive Measures for Laboratory Transmission 10. No sandals, slippers or high-heeled shoes are allowed in the laboratory.
Laboratory safety system of East China Normal University: 10. It is forbidden to work bareback or wear vests, flat bottoms, slippers (except for waxed floors indoors)
Safety system of Tianjin Pharmaceutical Research Institute: 6. It is prohibited to wear slippers during work to prevent unsafe accidents.
11. Centrifuge bomb
Irregular instrument operation
Centrifuge rotating head is not balanced, not axisymmetric, and the cover is not tightened
The cover of the pressure cooker was not tightened diagonally, enough deionized water was not injected, and the non automatic pressure cooker disinfection process was not present
Put paper/gauze/rubber/plastic products in the high-temperature oven
Long time exposure to ultraviolet light due to failure to turn off the ultraviolet light
When using quartz distiller to prepare triple distilled water, turn on the power first and then turn on the cooling water…
Combustion and explosion accidents and preventive measures
The three conditions for combustion and explosion of centrifuge are combustible, oxidant and ignition source. The temperature of materials has an important influence on combustion and explosion.
2. Preventive measures
Use inert gas or other gases for protection; The flow monitoring method and pressure monitoring method can be used to control the oxygen concentration. If the operation is under positive pressure, the pressure monitoring method is preferred. Generally, the oxygen concentration monitoring method can be used to strictly control the oxygen concentration.
Mechanical injury accidents of centrifuge and preventive measures
In the personal safety accidents of centrifuges, most of them are caused by misoperation or violation of operating procedures.
1. Cause of accident
When the centrifuge is feeding, the materials in the drum cannot reach an absolute uniform distribution, that is, there will be imbalance. Therefore, when the drum rotates at high speed, this imbalance will cause the vibration of the drum.
2. Preventive measures
An effective interlocking cover plate protection device can be installed at the feed inlet of the safety protection casing to eliminate the potential accident hazard, that is, if the cover plate is in the open position, the interlocking protection device must ensure that the machine cannot be started; On the contrary, as long as the machine is still running, the cover plate cannot be opened until the drum safely stops rotating.
Post time: Oct-14-2022