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Instructions for labor protection during transportation, storage and operation of cylinders with compressed and liquefied gas

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. This instruction provides general labor protection requirements for workers involved in the transportation, storage and operation of compressed and liquefied gas cylinders (hereinafter referred to as cylinders) in organizations.

1.2. When using cylinders, workers may be susceptible to mechanical injuries and burns (during explosions, fires), and if harmful and toxic substances are released into the air of the work area, poisoning.

1.3. Persons at least 18 years of age who have undergone a medical examination, training in safe working methods and have passed a commission exam with the participation of an inspector from the regional body of the Gosgortekhnadzor of Russia are allowed to service cylinders.

The results of the examinations are documented in a protocol indicating what types of work workers who have passed the knowledge test are allowed to perform. Based on the protocol of the commission, employees are issued certificates. In addition, each employee, when allowed to work independently, must undergo training on labor safety in the workplace.

1.4. All employees are provided with special clothing, safety footwear and personal protective equipment in accordance with current standards. Personal protective equipment is stored in a specially equipped room.

1.5. Warehouse premises for storing cylinders must be provided with natural ventilation and explosion-proof lighting.

1.6. The windows of rooms for storing cylinders should be painted over with white paint or equipped with sun-protection, non-flammable devices.

1.7. Premises for storing cylinders must be equipped with gas analyzers, and in their absence, the facility manager should establish a procedure for collecting and monitoring air samples.

1.8. Cylinders stored outdoors must be protected from exposure to precipitation and sunlight; protective structures should be made of non-combustible materials.

1.9. Storage areas, as well as loading and unloading of cylinders, must be provided with primary fire extinguishing means.

1.10. When using compressed and liquefied gas cylinders for laboratory purposes, they must be installed outside the laboratory building in metal cabinets. These requirements do not apply to cylinders that are structurally an integral part of the devices.

1.11. Placement of group cylinder installations (the installation includes more than two cylinders) is allowed near the blank external walls of buildings.

1.12. In cabinets and booths where cylinders are located, it is necessary to have slots or louvered grilles for natural ventilation, which prevents the formation of an explosive mixture in the cabinets.

2. Labor protection requirements before starting work

2.1. Wear the appropriate work clothing.

2.2. Do not enter the warehouse where cylinders are stored wearing shoes lined with metal nails or horseshoes. If necessary, use rubber galoshes.

2.3. Check the availability and serviceability of primary fire extinguishing equipment.

3. Labor protection requirements during work

3.1. Store and accept into warehouse only cylinders whose valves are closed with safety caps.

3.2. Cylinders with shoes must be stored in a vertical position in nests, cages and other devices that prevent them from falling.

Cylinders without shoes should be stored horizontally on special wooden frames or racks. The height of the stack in this case should not exceed 1,5 m, and the valves should face one direction.

3.3. It is not allowed to store cylinders with faulty valves or a damaged body (with cracks, dents, severe corrosion).

3.4. Joint storage in the same room of cylinders with flammable gases, oxygen, compressed air, chlorine, fluorine, as well as calcium carbide, paints, oils and fats is not allowed.

3.5. It is not allowed to store any flammable materials or carry out work with open fire at a distance of less than 10 m from the warehouse with cylinders.

3.6. When storing, transporting and operating cylinders, measures should be taken to prevent them from falling, damaging and becoming dirty. Do not allow cylinders to hit each other or allow oxygen cylinders and their fittings to come into contact with oily materials.

3.7. Move cylinders to the loading site and from the unloading site only on special trolleys, the design of which allows you to protect the cylinders from shaking and shock. Carrying cylinders on the arms and shoulders is not allowed.

3.8. Cylinders are moved during loading and unloading operations using devices designed for this purpose and ensuring safe operation (conveyors and other special devices). Lifting cylinders using magnetic cranes is not permitted.

3.9. In the absence of lifting mechanisms, loading and unloading operations should be carried out by at least two workers.

3.10. During loading and unloading operations, it is not allowed to unload cylinders with the caps down, and also to load cylinders onto vehicles if there is dirt, debris, or traces of oil in the body.

3.11. Transport cylinders only with safety caps screwed onto their necks.

It is not allowed to transport cylinders with attached reducers.

3.12. Cylinders should be transported in cage-type vehicles or vehicles with a special body that eliminates the possibility of the cylinders falling and hitting each other. Transportation of cylinders in vehicles with a regular body is permitted with the use of special devices. Protective rubber rings (two per cylinder) are usually used as such devices. Instead of rubber rings, it is permissible to use gaskets made from boards with cut-out nests for cylinders (the nests must be lined with felt), and also use hemp rope with a thickness of at least 25 mm. It is not allowed to use hay, straw or other flammable materials as spacers between cylinders.

3.13. When transporting cylinders in a horizontal position, turn the safety caps of the cylinders in one direction. Cylinders should be loaded across the vehicle body within the height of its sides.

In a vertical position, cylinders can be loaded only if they are tightly loaded, eliminating the possibility of the cylinders moving or falling. Doorways should be fenced with boards at least 40 mm thick to prevent loads from falling on the door.

3.14. For vehicles intended for transporting cylinders, the engine exhaust pipe with a removable spark arrester installed on it should be routed to the front of the vehicle.

3.15. Each vehicle must have two carbon dioxide or powder fire extinguishers with a capacity of at least 2 liters each and a red identification flag in the front corner of the left side.

3.16. Cars with gas-filled cylinders parked for more than 1 hour are allowed to be parked at a distance of at least:

10 m from residential buildings and 25 m from public buildings - for cars of the "cage" type;

20 m from residential buildings and 40 m from public buildings - for onboard vehicles.

3.17. When transporting gas cylinders, the following are not allowed: jolts, sudden braking when driving; transportation of cylinders without safety caps; leaving a car unattended.

3.18. When loading and unloading a vehicle, turn off its engine, unless the vehicle has an engine-driven device for loading and unloading cylinders.

3.19. Gas cylinders installed indoors must be located at a distance of at least 1 m from radiators and other heating devices and stoves and at least 5 m from heat sources with open fire.

3.20. Installation of cylinders with liquefied gases in basements, basements and underground areas is not permitted.

3.21. Cylinders filled with liquefied gases received by the enterprise for production purposes are not allowed to be used in municipal installations.

3.22. When replacing cylinders installed indoors, it is not allowed to use open fire or turn on and off electric lighting.

It is not allowed to replace cylinders while heating stoves and other devices with open fire are running. These devices should be turned off until the cylinders are replaced.

3.23. If it is impossible to vent gas at the point of consumption due to faulty valves, the cylinders should be returned to the filling station.

3.24. Re-attachment of shoes and rings for caps, replacement of valves and their repairs should be carried out at cylinder inspection points.

3.25. The gas contained in the cylinders is not allowed to be completely exhausted. The residual pressure in the cylinder must be at least 0,05 MPa (0,5 kgf/cm2).

3.26. When using cylinders, they should be protected from contact with live wires.

3.27. It is allowed to transport oxygen and acetylene cylinders together to the welding site on a special trolley.

4. Labor protection requirements in emergency situations

4.1. In the event of a fire in the warehouse, simultaneously with extinguishing the fire, intensively cool the cylinders with water and, if possible, remove them from the danger zone.

If the cylinders are very hot or are located in a fire, then supply water to cool them from behind the shelter.

4.2. If a gas leak from a cylinder is detected during storage in a warehouse, the cylinder must be removed from the warehouse to a safe place.

4.3. If a gas leak is detected while transporting cylinders, take the leaking cylinder to the leeward side and open the valve to release the gas.

4.4. In the event of an accident, it is necessary to provide the victim with first aid, call an ambulance, report the incident to the immediate superior, and take measures to preserve the entire situation of the accident (accident), if this does not pose a danger to people’s lives and does not cause further development of a dangerous situation.

5. Labor protection requirements at the end of work

5.1. Tidy up the workplace.

5.2. Remove the cylinders to a specially designated place for storage.

5.3. Put the tool in the place intended for storage.

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