Safety

As a group of high school students entering a biology lab for the first time, we carefully studied some safety precautions in the lab. On the first day of the experiment, our teacher first introduced to us some basic knowledge of the biological laboratory, including personal operation standards during the experiment and treatment after the experiment. In addition to the teacher's introductions, we had a further understanding of the safety standards of the biological laboratory. The following is a collection of safety compiled by our members, which includes personal operation details during the experiment, the reduction of errors in data analysis, and the finishing work before leaving the laboratory. This not only deepens our impression of the correct operation of experimental equipment, but also always alerts us to the standardization of biological experimental operations. With the help and instruction of our instructors, at the end of the experiment, we have grown from a complete group of novices to people with a basic framework and knowledge of the professional operation of the biology laboratory.

 

Good habits of individuals during the experiment:

1 Wear work clothes when entering the laboratory.

2 Wash hands before and after the experiment.

3 When volatile or toxic substances are involved, be sure to operate in a fume hood.

4 Be sure to dispose of the waste liquid.

5 Close windows and lock doors after getting off work.

6 Do not shake the pipette.

7 When putting a rubber stopper on the glass tube and the condenser tube, be careful to use force, and do not cause blood to flow from your hands.

8 Preparation before the experiment is very important.

9 After the experiment is completed, the medicines are returned to their original positions, and the used instruments are restored to their original state.

10 Don't rush to throw away the boiled stock solution.

11 No matter what solution or container is used, write a label on it or mark it with a marker, so as not to get it wrong.

12 After the microbial test, the culture medium should not be discarded with domestic waste and should be sterilized.

13 The data should be processed immediately after the test is completed..

14 When the balance is used up, clean it in time.

15 Repeatedly freezing and thawing in the refrigerator will blur the marked text on the sample, so you can stick it on the outside of the word with scotch tape.

16 Immediately after taking the liquid, remove the tip from the pipette.

17 You can do more in a limited time by designing the experimental schedule.

 

Attention should be paid to leaving the laboratory every day:

1. Whether the things that should be put back in the refrigerator have been put back, and whether the refrigerator door is tightly closed.

2. Whether the public things have been restored.

3. The instrument to be cleaned, whether the bottle is soaked.

4. Whether the power of the instrument is turned off.

5. Whether the test table is cleaned.

6. Whether the test records are written in time.

7. Do you have any idea of what to do tomorrow?

8. Are the doors and windows closed?

 

Biological Laboratory Safety Code

1. Safe water

Faucets, especially the easy-to-forget condensing faucets, should be turned off when they are used, and should be checked once after getting off work; it is forbidden to discharge strong corrosive and highly toxic waste liquids in laboratory sinks and sewers; if leakage or rupture of pipes is found, measures must be taken and repaired in time.

2. Electricity safety

The electrical wiring in the laboratory is standardized, and it is not allowed to dismantle or pull it without authorization. If it is found that the line is blocked and leaks, it must be repaired in time; overloading is strictly prohibited; it is ensured that the switches in the laboratory are easy to switch; when off work every day, the frequently used electrical appliances must be checked.

When get off work, the frequently used electrical appliances must be checked.

3. Safe use of open flames

When using open flames such as gas and alcohol lamps, you must keep away from flammable and explosive materials, and use them at any time.

4. Use medicines safely

Flammable, explosive, and strong corrosive chemicals should be stored in categories and files, and should not be stored together with conventional chemicals; highly toxic drugs, valuable drugs, and materials should be stored on special counters.

5. Safe use of doors and windows

Laboratory doors and windows should be left intact to prevent theft; at the end of each day, the last person to leave must be fully inspected.

6. Use a fume hood safely to prevent toxic fumes from escaping

1.The exhaust system of the fume hood must be efficient and reliable and regularly inspected.

2.Sort and dispose garbage properly. Biological samples must be sterilized before being discarded after the end of the experiment.

3.Waste classification includes gloves and soft wastes, waste glass, waste liquid, solid wastes and sharp objects. After the experiment, the waste will be classified and disposed.

 

Implement a safety responsibility system

The responsibility for laboratory safety and security rests with people, and the last person to leave should make a safety record.

 

COVID-19 prevention measures

1. Pay attention to body temperature, above 37.3 °C immediately reported to the captain and instructor.  

2. Less access to crowded places.  

3. Posting is prohibited during the epidemic period.  

4. Test nucleic acids as required.  

5. Maintain a safe distance of 1 meter.  

6. Wash your hands frequently, ventilate more, and pay attention to personal hygiene.  

7. Wear a mask when entering and leaving.