Views: 0 Author: Site Editor Publish Time: 2021-11-25 Origin: Site
In biochemical laboratories, they often come into direct contact with very toxic, corrosive, flammable and explosive chemicals, and often use fragile glass and porcelain utensils, as well as high-temperature electric heating equipment such as gas, water, and electricity. In the environment, there is intense and meticulous work. Therefore, we must pay great attention to safety work.
1. Before entering the laboratory and starting work, you should know where the gas main valve, water valve and electric gate are located. When leaving the laboratory, be sure to check the room again, turn off the water, electricity, and gas switches, and lock the doors and windows.
2. When using a gas lamp, light the match first, hold the match close to the lamp with one hand, and slowly open the gas door with the other. You cannot open the gas door first and then light the match. The size of the flame and firepower should be adjusted according to the needs of the experiment. When using fire, you should make sure that the fire is on and the fire is on and the fire is extinguished.
3. When using electrical equipment (such as ovens, constant temperature water baths, centrifuges, electric furnaces, etc.), take care to prevent electric shock; never switch electric switches and electrical switches with wet hands or when looking away from the eyes. A test pencil should be used to check whether electrical equipment is leaking. Any leaking instrument cannot be used.
4. The use of concentrated acid and alkali must be handled with extreme care to prevent splashing. When measuring these reagents with a pipette, a rubber ball must be used, and it must not be pipetted by mouth. If it accidentally splashes on the test bench or the ground, it must be wiped clean with a damp cloth in time. If it touches the skin, it should be treated immediately.
5. When using combustibles, especially combustibles (such as ether, acetone, ethanol, benzene, sodium metal, etc.), you should be especially careful. Don't put a lot on the table, let alone near the flame. Only when away from the fire source, or after the flame is extinguished, can a large amount of flammable liquid be poured. Organic solvents with low boiling points are not allowed to be heated directly on the fire, and can only be heated or distilled on a water bath using a reflux condenser.
6. If a considerable amount of flammable liquid is accidentally poured out, it should be handled as follows:
(1) Turn off all fire sources and electric heaters in the room immediately.
(2) Close the door, open the small windows and windows.
(3) Wipe the spilled liquid with a towel or rag, twist the liquid into a large container, and then pour it into a glass bottle with a stopper.
7. When operating in an oil bath, you should heat it carefully and measure it continuously with a thermometer, and do not make the temperature exceed the burning temperature of the oil.
8. Residues of flammable and explosive substances (such as metallic sodium, white phosphorus, match heads) shall not be poured into the dirt bucket or sink, and should be collected in designated containers.
9. Waste liquid, especially strong acids and alkalis, cannot be poured directly into the sink. It should be diluted first, then poured into the sink, and then rinse the sink and sewer with a large amount of tap water.
Xunling filtered storage cabinets provide a safety storing solution for these toxic, corrosive, flammable and explosive chemicals. It helps you maintain a safe and clean lab room.
