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eight defenses of chemical laboratory safety management regulations

Oct 29, 2018

According to the characteristics of the laboratory, the safety of the laboratory includes waterproof, fireproof, anti-virus, anti-corrosion, anti-shock, explosion-proof, anti-environmental pollution, anti-barbarism and other aspects. The following is a brief description of these aspects, I believe that by doing these points, it will effectively reduce and eliminate the occurrence of security incidents.


First, waterproof.


Each laboratory is equipped with disposable water, pure water, high-purity water or water-making equipment such as distillers and water purifiers. The operator has forgotten to turn off the faucet during the use, or if the faucet is forgotten to close after suddenly stopping the water, the laboratory will be seriously flooded, and the water-making equipment should be checked regularly to prevent water leakage.


Second, fire prevention.


The laboratory has a variety of fire tools such as alcohol lamps, electric stoves, and FID gas chromatographs that generate fire. These may bring safety hazards. When using these things, we must combine the three elements of combustion - ignition sources, combustibles, and combustion aids. When using fire, we must eliminate the combustion aids near the fire source to avoid causing them. Fire accident.


When a fire breaks out, it is also necessary to combine the three elements of combustion, and removing one can stop the combustion.


Fires are divided into four categories: A, B, C, and D. Fire extinguishers used in each type of fire are separated and fire extinguishers must be installed in each laboratory, and fire extinguishers should be inspected regularly.

Third, anti-virus.

Every laboratory uses toxic reagents. When using toxic substances, you should understand the physical and chemical properties, use methods and emergency measures of toxic substances.


All medicines and reagents must have labels that match their contents. Poisonous items must strictly abide by the "five pairs" system (double custody, double release, double lock, double account, double acceptance).


For example, when preparing a sulfuric acid solution, wear anti-corrosion latex gloves and safety glasses, use a glass container, add acid to water instead of adding water to the acid, stir while adding, and then put it into the reagent bottle after cooling. If the sulfuric acid splashes on the skin, wipe it off with a rag and rinse with plenty of water. As with the preparation of sulfuric acid solution, it is necessary to consider the precautions before, during and after the operation.


Fourth, anti-corrosion.

Reagents commonly used in laboratories such as sulfuric acid solution, sodium hydroxide solution, etc. are corrosive. The use of corrosive solutions will corrode the test bench and laboratory equipment. Then, when using these solutions, the protective measures should be done well. If the solution is dripped on the test bench and the experimental equipment, wipe it with a rag in time. The used waste liquid should be recycled in a container instead of being disordered.

Fifth, prevent electric shock.

Protect yourself from electric shock, whether at work or at home.


First of all, from the point of view of the electrical facilities, the power outlet must be grounded. The high-power instruments and electrical equipment must be connected to the air switch. The entire power supply of the laboratory must have a leakage protection switch.


Secondly, when using electrical equipment, you can't touch the electrical switch and power supply with wet hands. In the process of using the equipment strictly in accordance with the operating procedures of the electrical equipment, you must do a "three-step" when you are repairing or repairing the instrument. , power off, listing;


Finally, after using it, turn off the power of the instrument and return it to the state before use.


Six, explosion-proof.

Explosive drugs include picric acid, perchloric acid, hydrogen peroxide, etc. Drugs such as these should be stored separately and should not be placed together with other flammable materials. When using a glass instrument to heat the electric furnace, the water on the outer wall of the glassware should be wiped clean. It is necessary to put glass beads on the glass beads to prevent the glassware from rupturing. When performing explosive operations, such as when analyzing explosive gases with an austenitic gas analyzer, a protective net must be installed outside the explosive bottle. It is strictly forbidden to bake inflammable and explosive items in the oven.


Seven, to prevent environmental pollution.

The waste generated by the general laboratory has waste liquid, waste gas and waste. The most waste generated in the laboratory belongs to the waste liquid. After use, the unused solution cannot be directly discharged into the waste liquid pool. The barrels are collected and concentrated, for example, the pH of the waste liquid. The waste liquid containing heavy metals is replaced with another waste liquid and then discharged to the waste liquid pool, which will reduce the difficulty of sewage treatment and reduce the treatment cost. It also protects the environment; waste includes discarded drugs, discarded reagent bottles, etc., and discarded drugs should be collected and disposed of separately, but not directly into the trash can. The discarded reagent bottles should be rinsed with water before being discarded.


Exhaust gas treatment is more difficult, but there are some simple ways to protect the environment, such as placing activated carbon in the laboratory and placing some bonsai that absorbs exhaust gas. Some small moves can make a big contribution to protecting the environment.


Eight, against barbaric operations.

Barbaric work is not working according to the operating procedures. Barbarism is the biggest safety hazard, so the biggest factor in preventing barbarism is to strictly enforce the operating procedures. The three elements of an accident are the unsafe behavior of people, the unsafe state of things, and environmental factors. Controlling these three elements will prevent accidents.


The safety of the laboratory should not be underestimated. To enter the laboratory, it is necessary to strictly abide by the management regulations of the laboratory. In the laboratory we have to do three steps of harm - not hurting ourselves, not hurting others, not being hurt by ourselves, not only a responsibility to ourselves but also a responsibility to others and the family.