Instructions for labor protection when working in the chemistry room

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OCCUPATIONAL SAFETY AND HEALTH
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Instructions on labor protection when working in the chemistry room. 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. Persons aged at least 18 years who have been instructed in labor protection, a medical examination and have no contraindications for health reasons are allowed to work in the chemistry room.

1.2. Persons admitted to work in the chemistry room must comply with the internal labor regulations, the schedule of training sessions, the established work and rest regimes.

1.3. When working in a chemistry classroom, workers and 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. When working in the chemistry room, the following overalls and personal protective equipment should be used: cotton gown, rubberized apron, goggles, rubber gloves.

1.5. 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.

1.6. The chemistry room should be equipped with a fume hood for demonstration experiments.

1.7. Personnel 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.

1.8. The victim or eyewitness of the accident must immediately inform the administration of the institution about each accident. In case of malfunction of equipment, fixtures and tools, stop work and inform the administration of the institution.

In the process of work, personnel must comply with the rules for wearing overalls, using personal and collective protective equipment, observe the rules of personal hygiene, and keep the workplace clean.

1.10. Persons who have failed to comply with or violate the instructions on labor protection are subject to disciplinary liability in accordance with the internal labor regulations and, if necessary, are subjected to an extraordinary examination of knowledge of the norms and rules of labor protection.

2. Labor protection requirements before starting work

2.1. Put on overalls, when working with toxic and aggressive substances, prepare personal protective equipment for use.

2.2. Check that the fume hood ventilation is working properly.

2.3. Prepare the necessary equipment and fixtures for work.

3. Labor protection requirements during work

3.1. It is forbidden to use the chemistry room as a classroom for classes in other subjects and after-school groups.

3.2. The stay of students in the laboratory is prohibited, and in the room of the chemistry room is allowed only in the presence of a teacher (teacher).

3.3. Students are not allowed to perform the duties of a laboratory assistant in the chemistry classroom.

3.4. It is forbidden to taste any reagents and solutions, eat and drink drinks in the chemistry room.

3.5. It is forbidden to use home-made devices and heating devices with an open spiral in work.

3.6. Joint storage of reagents that differ in chemical nature is not allowed.

3.7. It is forbidden to store reagents and solutions in unlabeled containers, alkali solutions in bottles with ground stoppers, and flammable and combustible liquids in polymer containers | materials.

3.8. Issuance of reagents to students for laboratory and practical work is carried out in masses and volumes not exceeding those necessary for this experiment, and solutions with a concentration not exceeding 5%.

3.9. It is not allowed to throw reagents into the sewer, pour solutions, flammable and combustible liquids into it. They must be collected for subsequent disposal in a glass container with a lid with a capacity of at least 3 liters.

3.10. Do not store any equipment on cabinets or in close proximity to reagents and solutions.

3.11. It is allowed to prepare solutions from solid alkalis, concentrated acids and an aqueous solution of ammonia only with the use of personal protective equipment in a fume hood with ventilation turned on in porcelain laboratory glassware. Moreover, a liquid of higher density should be poured into a liquid of lower density.

3.12. Solid bulk reagents are allowed to be taken from bottles only with the help of scoops, spoons, spatulas, test tubes.

4. Labor protection requirements in emergency situations

4.1. Pour the spilled aqueous solution of acid or alkali with dry sand, move the adsorbent from the edges of the spill to the middle with a scoop, collect it in a plastic bag and tie tightly. Treat the spill site with a neutralizing solution and then rinse with water.

4.2. When spilling flammable liquids or organic substances up to 0,05 l, extinguish the open fire of the spirit lamp and ventilate the room. If more than 0,1 l is spilled, remove students from the classroom, extinguish the open fire of the spirit lamp and turn off the power supply system of the room with a device from outside the room. Pour the spilled liquid with dry sand or sawdust, collect the wet adsorbent with a wooden scoop in a resealable container and ventilate the room until the smell disappears completely.

4.3. In the event of a spill of a flammable liquid and its ignition, immediately inform the nearest fire department and proceed with extinguishing the source of ignition with primary fire extinguishing equipment.

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, immediately provide first aid to the victim, inform the administration of the institution, if necessary, send the victim to the nearest medical institution.

5. Labor protection requirements at the end of work

5.1. Tidy up the workplace, put away all chemical reagents in their places in the laboratory in lockable cabinets and safes.

5.2. Pour the spent reagent solutions into a glass container with a lid with a capacity of at least 3 liters for subsequent destruction.

5.3. Turn off the ventilation of the fume hood. Remove overalls, personal protective equipment and wash hands thoroughly with soap and water.

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