In the daily operation of the laboratory, safety protection is crucial, covering the labor protection of experimenters, the protection of the experimental environment and the protection of experimental equipment. The following focuses on the experimental protection facilities and safety measures.
Experimental protection facilities
dustproof
Dust is a very small particle in the air with a complex composition, which will directly affect the accuracy of the instrument and the purity of the sample. Laboratories with low dust protection requirements can clean the room regularly; those with strict requirements need to be equipped with special dust-proof facilities, such as closed doors and windows, air purification equipment, etc., to ensure the cleanliness of the experimental environment.
antisepsis
Instrument corrosion is mostly caused by harmful gases and other factors, isolation is an effective prevention method, special anti-corrosion cover can be set up, or the surface of the instrument can be treated with anti-corrosion. At the same time, the storage area needs to be ventilated to discharge harmful gases in time to reduce the risk of corrosion.
moistureproof
Instruments often contain metal parts, which can easily cause rust when wet. Moisture-proof needs to take into account the air drying of the room and the moisture-proof of the instrument itself, a dehumidifier can be installed to control the indoor humidity, put desiccant in the instrument, and sensitive precision instruments can be placed in the moisture-proof box.
Anti-vibration
Vibration protection involves the environment and the instrument itself. To reduce the impact of environmental vibration on the instrument, an anti-vibration table or anti-vibration base can be built. To prevent the vibration of the instrument itself, the stability can be enhanced by fastening the instrument and adding pads, suction cups, etc., to ensure the stable operation of the instrument.
Fire prevention and extinguishing
It is necessary to be vigilant against fire hazards, prepare fire extinguishing materials such as fire extinguishing sand, asbestos cloth, fire extinguishers, etc., and keep the fire extinguishing sand dry. If the wire catches fire, the power supply should be cut off first, and the fire should be extinguished with a carbon tetrachloride fire extinguisher, and water or foam fire extinguishers should be strictly prohibited. Different fire extinguishers are suitable for different scenarios, and regular inspection and maintenance are required to ensure that the nozzle is unobstructed before use.
Explosion proof
Explosions are very harmful and have various triggers. Explosion-proof should be considered in the planning and construction of the laboratory, reasonable layout, explosion-proof equipment, and ventilation system. Daily operations must comply with regulations, regular safety inspections, and eliminate hidden dangers.
Experimental protection safety measures
Prevent the harm of bacteria and viruses
Biological laboratories need to establish a strict biosafety system, and experimenters wear protective equipment, operate in biological safety cabinets, and follow the principle of sterility. Properly dispose of waste after the experiment, autoclaved or chemically disinfected to prevent transmission.
Prevent dust hazards
Experimenters should wear masks with good filtration when entering the laboratory, and wear protective glasses when grinding and other operations. At the same time, clean the laboratory regularly to reduce dust accumulation and keep the environment tidy.
Prevent the harm of poison gas
The laboratory should be well ventilated, and toxic gas operation should be carried out in a fume hood. Experimenters choose appropriate gas masks according to the type and concentration of poisonous gas and ensure that they are worn correctly. Regularly inspect and maintain ventilation systems, and strictly manage toxic gas storage and use.
Prevent harmful light hazards
When exposed to harmful light such as ultraviolet rays and lasers, experimenters need to wear special protective glasses. The ultraviolet experimental area is equipped with warning signs, and the operation of laser equipment should be standardized, and the equipment position should be reasonably arranged to reduce the impact of light reflection and scattering.
In short, laboratory safety protection is a systematic work, from facility allocation to measure implementation, from environmental control to personnel operation specifications, every link is indispensable. Only by implementing various protection requirements and maintaining safety vigilance at all times can we minimize risks, build a solid safety line of defense for the smooth development of experimental activities, and ensure the health of experimenters, equipment and the safety of the environment.
