Three important things -- Safe practice for laboratory centrifuges

"The laboratory is an important base for teaching and scientific research, and the safety management of the laboratory is the basic guarantee for the normal operation of the experiment. With the rapid development of China's economy and the requirements of the domestic food safety situation, all kinds of laboratories have mushroomed, both in terms of the number of scientific research hardware have great development, but laboratory safety problems also followed. (Laboratory fire, explosion, casualties and poisoning accidents frequent) sounded the laboratory safety problem

According to @Nanjing Fire news - October 24 at 15:54, Nanjing fire 119 received a report: Jiangning District general Avenue 29 Nanjing University of Aeronautics and Astronautics General Road campus a laboratory explosion, a total of 2 people died, 9 people were injured. The cause of the accident is under investigation. At present, the scene rescue work has all ended.

Laboratory centrifuge in the operation of the link, with a lot of uncertainty and insecurity, this uncertainty and insecurity once met the appropriate situation, will cause safety accidents, how to prevent laboratory safety accidents caused by centrifuges is every experimental workers must be skilled in the ability! Then the safety operation specifications of laboratory centrifuges need to pay attention to the following points:

The centrifugal before

(1) Ensure that the centrifuge is placed on the horizontal platform, visual balance, gently shake with your hand, check whether the centrifuge is placed smoothly;

(2) Plug in the power socket and press the power switch (the power switch is on the lower right side of the centrifuge). ;

(3) It is strictly forbidden to run beyond the maximum speed set by the rotor. If cracks occur in the rotor body or the hanging cup, it is strictly forbidden to use it, otherwise it is easy to crack.

(4) according to the key of "stop and open the door, open the door, will gently rotor on the motor shaft, screw the nut with rotor motor axis tightly together, pay attention to the movements should be gentle, avoid swung sharply and pull up and down pressure, flexible supporting) in order to avoid damage to the motor, and then put on the hanging cup or adapter with a tube rotor, turn away gently rotating a daughter, The rotor should rotate flexibly, the hanging cup (adapter) should tilt freely on the rotor, without block and rubbing phenomenon;

(5) The test liquid in the centrifugal tube must be uniform and balanced on the electronic scale to ensure the balanced operation of the instrument;

(6) Put the centrifugal tube into the hanging cup (test tube) on the rotor. The centrifugal tube must be placed symmetrically and the empty casing that is not needed must be removed;

(7) Close the door cover, pay attention to the door cover must be locked, hand check whether the door cover is closed, otherwise the centrifuge can not work.

After centrifugal

(1)After the operation, ensure that the rotor is in a static state, and pay attention to personal protection when opening the lid.

(2) Take out the centrifugal tube carefully and do not shake the centrifugal tube;

(3) After the centrifugal tube sample inspection, it is necessary to handle the sample strictly in accordance with the laboratory safety rules to avoid environmental pollution;

(4) After cleaning the centrifugal tube, it is necessary to put it upside down to dry it.

(5)When the instrument is not used for a long time, the main power plug should be removed. When the main power plug is not removed, the instrument still has electricity.

(6) Daily cleaning and maintenance of laboratory centrifuges.