Instructions on labor protection during dosimetric control during the reception of scrap metal

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Instructions on labor protection during dosimetric control during the reception of scrap metal

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. To carry out dosimetric control when accepting scrap metal, personnel at least 18 years old, who have passed a medical commission and have no contraindications, training in the prescribed manner, as well as special instruction at the workplace, are allowed.

1.2. When conducting dosimetric monitoring, the recommendations of the standard instructions for radiation protection of personnel, as well as safety measures when conducting individual dosimetric monitoring with radiation-contaminated materials, must be strictly observed.

1.3. Ensuring radiation safety requires the implementation of a set of protective measures that depend on the specific conditions of work with sources of ionizing radiation, and, first of all, on the type of radiation source and the technology of the work performed.

1.4. The production activities of employees of enterprises for the acceptance of scrap metal can be associated with radioactively contaminated waste from industrial enterprises, both with open and sealed sources of ionizing radiation.

1.5. The application of appropriate measures for the radiation protection of personnel makes it possible to significantly reduce the doses of personnel exposure, contamination of the area and the environment with radionuclides.

1.6. When accepting scrap metal, there may be a man-made source of ionizing radiation, which is a by-product of technical activities.

1.7. When working with sealed sources, workers can only be exposed to external radiation, so all protective measures in this case are carried out taking into account the absence of radioactive substances entering the human body.

1.8. The equipment for radiation protection of personnel when accepting scrap metal depends on the intensity of the radiation source, the use of special protective materials, and personal protective equipment.

1.9. The basic principles of radiation protection are;

time protection;
distance protection;
shielding protection;
protection by limiting the intake of radionuclides into the human body.

1.10. Measures for personal protection include regulation of access to work, use of personal protective equipment, control of personnel exposure and compliance with personal hygiene standards.

1.11. When working with sealed sources, dosimetric control is mandatory.

1.12. Scrap metal acceptance personnel are provided with the following personal protective equipment: a dosimeter, a cotton suit, leather boots, combined gloves, a protective helmet, in addition - a jacket and trousers with an insulating lining in winter.

2. Labor protection requirements before starting work

2.1. Put on overalls, special footwear and a helmet of the established sample.

2.2. Check the workplace and approaches to it for compliance with safety requirements.

2.3. Prepare the dosimeter for work.

3. Labor protection requirements during work

3.1. When scrap metal is received by road or rail transport, before it is unloaded onto the territory of the base, the scrap metal receiver measures it for the presence of radiation. Permissible rate - 20 microdistrict.

3.2. In case of exceeding the radiation content of more than 20 mcr, scrap metal must be sent back with a notification to the management of the enterprise and civil defense workers of the city.

3.3. In order to prevent the ingress of radioactive substances into the gastrointestinal tract, smoking is prohibited in the working area, storage and consumption of food products, and overalls.

4. Labor protection requirements in emergency situations

4.1. If a level of radiation in the scrap metal is more than 20 microns, a sign of radiation hazard is obligatory posted, indicating the dose of radiation.

4.2. In case of detection of contamination of the skin of workers with radionuclides, immediate sanitization is carried out. Human skin is well cleansed with soap and warm water.

5. Labor protection requirements at the end of work

5.1. At the end of the work, the staff must:

when using lifting mechanisms, set the boom to the position determined by the manufacturer's instructions for installation and operation;
turn off the switch on the switchboard and lock the switchboard;
clean up the workplace;
wash hands, face and other contaminated areas of the body with soap, take a shower.

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