(1) No eating, drinking, or storing food, beverages, or other personal items in the laboratory. Do not conduct any activities unrelated to experiments and research.
(2) Smoking is prohibited in all laboratory areas (including indoors, corridors, elevators, etc.).
(3) No outsiders are permitted to enter the laboratory without permission from laboratory management.
(4) Be familiar with emergency escape routes and response measures. Know the location of first aid kits, fire extinguishers, emergency eye wash stations, and showers. Remember emergency numbers 119/120/110.
(5) Keep laboratory doors and aisles clear. Minimize the amount of reagents stored in labs. Do not store highly toxic chemicals without permission.
(6) Wash hands before leaving the laboratory. Do not wear lab coats or gloves in public areas like restaurants, libraries, conferences, or offices.
(7) Maintain clean and tidy laboratories. After experiments, wash, dry, and store glassware promptly. Do not accumulate excessive materials on benches or floors.
(8) Consult laboratory supervisors or instrument specialists promptly with any experimental questions or concerns. Do not operate equipment blindly.
(9) Never leave experiments unattended for extended periods.
(10) When conducting hazardous experiments at night or on holidays, have at least two people present to ensure safety.
(1) All chemical containers must be clearly and permanently labeled with contents and hazard information.
(2) Safety data sheets must be available for all chemicals.
(3) Be familiar with the properties and potential hazards of all chemicals used.
(4) Special hazard labels are required for unstable chemicals or those prone to peroxide formation during storage.
(5) Store chemicals at appropriate heights. Do not store in fume hoods.
(6) Store corrosive liquid containers as low as possible with spill trays padded underneath to prevent accidents.
(7) Store unstable chemicals separately and label them with purchase dates.
(8) Store incompatible chemicals that could generate toxic fumes, fire, or explosions separately.
(9) Highly toxic chemicals should not be stored in laboratories without permission.
(1) Electricity
Pulling wires in the laboratory is strictly prohibited. Before using sockets, understand the rated voltage and power.
Do not overload.
Do not daisy chain socket boards in series.
Do not use multiple appliances simultaneously on one board long term. Large instruments require independent sockets.
Do not use temporary power strips long term. Conserve electricity.
Turn off air conditioners, lights, computers, and other appliances when leaving the laboratory after work or holidays.
Even on work days, turn off unnecessary electronics whenever possible.
(2) Water Usage
Laboratory water includes tap water, purified water, and ultrapure water.
Select the appropriate grade of water for experiments. Use tap water for initial glassware rinsing, finishing with purified water.
Use ultrapure water for chromatography, mass spectrometry, and biological experiments.
Do not store ultrapure or purified water.
Take needed amounts as used. If not used for an extended time, flush lines for several minutes before reuse. Turn off faucets after use.
(3) Liquid Nitrogen Usage
Liquid nitrogen is commonly used as a cryogenic refrigerant. Contact can cause frostbite. Small splashes in the eyes can result in blindness. Rapid evaporation can lead to oxygen deprivation. When handling:
l Wear insulated gloves.
l Wear a long lab coat covering past knees.
l Wear shoes covering ankles, safety goggles, and masks if needed. Ensure proper ventilation.
(4) Cleaning Reagents
Acidic solutions contain sodium/potassium dichromate and sulfuric acid. Alkaline solutions contain sodium hydroxide and ethanol. Neutral cleaners are common detergents.
Store acidic solutions in glass. Alkaline solutions can be kept in plastic.
When using alkaline solutions, disassemble and remove ground glass joints to prevent fusion by alkali corrosion.
All precautions have been taken throughout the whole project to ensure the safety. No animals or hazardous materials were used. There is no environmental impact since all experiments were conducted inside the laboratory.