Instructions on labor protection during laboratory experiments and practical classes in chemistry

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OCCUPATIONAL SAFETY AND HEALTH
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Instructions on labor protection during laboratory experiments and practical exercises in chemistry. Full Document

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. Students from the 8th grade who have been instructed in labor protection, a medical examination and have no contraindications for health reasons are allowed to conduct laboratory experiments and practical classes in chemistry.

1.2. Students must comply with the rules of conduct, the schedule of training sessions, the established work and rest regimes.

1.3. When conducting laboratory experiments and practical classes in chemistry, students may be exposed to the following hazardous and harmful production factors:

chemical burns when caustic chemicals come into contact with the skin or eyes;
thermal burns due to inaccurate use of alcohol lamps and heating of liquids;
hand cuts due to careless handling of laboratory glassware;
poisoning with vapors and gases of highly toxic chemicals;
the occurrence of a fire due to careless handling of flammable and combustible liquids.

1.4. The chemistry room should be equipped with a first aid kit with a set of necessary medicines and dressings in accordance with the Rules for first aid for injuries.

1.5. Students are required to comply with fire safety rules, know the location of primary fire extinguishing equipment. The chemistry cabinet must be equipped with primary fire extinguishing equipment: two fire extinguishers, a box of sand and two capes made of fire-retardant fabric.

1.6. The victim or eyewitness of the accident must immediately inform the teacher (teacher) about each accident. In the event of a malfunction of equipment, fixtures and tools, stop work and inform the teacher (teacher) about this.

1.7. In the process of work, students must follow the procedure for conducting laboratory experiments and practical exercises, the rules of personal hygiene, and keep the workplace clean.

1.8. Students who have failed to comply with or violate the instructions on labor protection are held accountable and unscheduled instruction on labor protection is carried out with all students.

2. Labor protection requirements before starting work

2.1. To study the content and procedure for conducting a laboratory experiment or practical lesson, as well as safe methods for its implementation.

2.2. When carrying out work related to heating liquids to the boiling point, using corrosive solutions, prepare goggles.

2.3. Prepare the workplace for work, remove all unnecessary, remove briefcases and bags from the aisles.

2.4. Check the serviceability of equipment, instruments, the integrity of laboratory glassware.

3. Labor protection requirements during work

3.1. Follow all the instructions of the teacher (teacher) on the safe handling of reagents and solutions, the order of work.

3.2. Show the device prepared for work, the installation to the teacher (teacher) or laboratory assistant.

3.3. It is forbidden to independently conduct any experiments that are not provided for in this work.

3.4. It is forbidden to take out of the office and bring into it any substances without the permission of the teacher (teacher).

3.5. Constantly maintain order in the workplace, immediately report all spills of solutions, as well as spilled solid reagents, to the teacher (teacher) or laboratory assistant. It is forbidden to remove any chemical reagents on your own.

3.6. All malfunctions in the operation of the equipment must be reported to the teacher (teacher) or laboratory assistant, it is forbidden to fix the malfunctions on your own.

3.7. Before carrying out work with heating liquids, using caustic solutions, wear protective goggles. Do not leave heaters running unattended.

3.8. For heating liquids, use only thin-walled vessels filled with liquid by no more than a third. In the process of heating, do not point the neck of the vessels at yourself and your comrades, do not bend over the vessels and do not look into them.

3.9. It is forbidden to taste any solutions and reagents, as well as to eat and drink in the chemistry room.

4. Labor protection requirements in emergency situations

4.1. When spilling an aqueous solution of acid or alkali, as well as when spilling solid reagents, immediately inform the teacher (teacher) or laboratory assistant about it. Do not clean up any substances yourself.

4.2. When spilling flammable liquids or organic substances, immediately extinguish the open fire of the spirit lamp and inform the teacher (teacher) or laboratory assistant about it.

4.3. In the event of a spill of a flammable liquid and its ignition, immediately inform the teacher (teacher) about this and, at his direction, leave the room.

4.4. If laboratory glassware is broken, do not collect its fragments with unprotected hands, but use a brush and a dustpan for this purpose.

4.5. In case of injury, inform the teacher (teacher) about it, who should immediately provide first aid to the victim and inform the administration of the institution.

5. Labor protection requirements at the end of work

5.1. Extinguish the spirit lamp with a special cap, do not blow out the flame of the spirit lamp with your mouth, and do not extinguish it with your fingers.

5.2. Tidy up the workplace, hand over all equipment, instruments, reagents to the teacher (teacher) or laboratory assistant, drain the spent aqueous solutions into a glass vessel with a capacity of at least 3 liters. Ventilate the room and wash your hands thoroughly with soap.

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