1.  Students are not allowed to be in the laboratory without a teacher.

2.  Before entering the laboratory, students are required to put on a lab coat and soft footwear.

3.  Be careful, avoid unnecessary conversations and keep your workplace clean at the lab.

4.  Please read the warning signs and symbols on the reagents prepared for experiments.

5.  Never try to taste or smell any preparations or reagents.

6.  Eating and drinking is not allowed in the laboratory.

7.  Do not waste distilled water, electricity or gas.

8.  Handle concentrated acids, bases, poisons and flammable liquids very carefully. The only acceptable way of retrieving a concentrated acid, base or poisonous  substance is with a pipette. Acid/base waste to be disposed to the sink, avoiding burns by liquid splash (keep the mouth of the vessel as close as possible to the drain, then rinse carefully with water). Flammable liquids cannot be used near active burners or other sources of open flames. Store such liquids in sealed vessels.

9.  Use the gas installation with caution. To light a gas burner, first you have to shut off air supply, then light a match and place it near the chimney outlet. Slowly open the gas tap. Adjust the air supply (no flame roar, no smoke). Stop the burner immediately when not in use.

10. Test tubes can only be filled with liquid to ¼ of the total tube volume.

11. In the case of burns to the skin, mouth or eyes, immediately wash off the corrosive liquid with plenty of tap water and alert the teacher. Neutralize acids with 5% sodium bicarbonate, and bases with 1% acetic acid. Compounds used for neutralization can be found in every laboratory. Make sure they are available before starting an experiment.

12. If the reaction mixture, the table or the student’s lab coat catches fire, put out the fire using a fibreglass fire retardant blanket (hanging on a lab wall) or a fire extinguisher (located in the room), and alert the teacher.

13. The workplace, reagents and equipment should be put in order before you leave the lab. Wash the lab glass. Shut the gas valves and taps.