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RESOLUTION OF THE MINISTRY OF EMERGENCY SITUATIONS OF THE REPUBLIC OF BELARUS

of January 21, 2021 No. 4

About procedure and criteria of reference of sources of ionizing radiation to categories on degree of radiation hazard

Based on Item 2 of article 22 of the Law of the Republic of Belarus of June 18, 2019 No. 198-Z "About radiation safety", subitem 7.4 of Item 7 of the Regulations on the Ministry of Emergency Situations of the Republic of Belarus approved by the Presidential decree of the Republic of Belarus of December 29, 2006 No. 756, the Ministry of Emergency Situations of the Republic of Belarus DECIDES:

1. Approve the Instruction about procedure and criteria of reference of sources of ionizing radiation to categories on degree of radiation hazard it (is applied).

2. This resolution becomes effective after its official publication. 

Minister

V. A. Vashchenko

It is approved

Ministry of Health of the Republic of Belarus

 

Ministry of Natural Resources and Environmental Protection of the Republic of Belarus

 

National academy of Sciences of Belarus

 

 

Approved by the Resolution of the Ministry of Emergency Situations of the Republic of Belarus of January 21, 2021 No. 4

The instruction about procedure and criteria of reference of sources of ionizing radiation to categories on degree of radiation hazard

1. This Instruction establishes procedure and criteria of reference of sources of ionizing radiation (further - III) to categories on degree of radiation hazard.

2. For the purposes of this Instruction terms and their determinations in the values established by the Law of the Republic of Belarus "About radiation safety" are used.

3. Criteria of reference of III to categories are determined by degree of radiation hazard according to appendix 1.

4. Criteria of classification of III by degree of radiation hazard are the activity of III given to indicator of danger of radionuclide (A/D) according to appendix 2, and scope of III taking into account the potential danger following from predictable defects and variations from normal working hours of III.

5. The single category of danger to set of the closed III which are in close proximity from each other, including when using in single production process (in one installation, the device or the block), transportation of the closed III in one vehicle, storage in one storage, for the purpose of establishment of single complex of organizational and technical measures for safety and safety of these III is determined by formula

Формула 2 к ПП№4

where

ФОрмула 3 к ПП№3

- the Greek letter "sigma" meaning the amount;

Ai, n - activity of i-go III with n-m radionuclide, TBK;

Dn - indicator of danger of n-go of radionuclide, TBK, according to appendix 2.

6. For the projectible (designed) radiation devices category III on degree of radiation hazard is established by the legal entity or the individual entrepreneur performing their designing (designing) and it is specified in project and (or) design documentation, technical (operational) documentation III.

If for the radiation devices operated before entry into force of the resolution which approved this Instruction, category III on degree of radiation hazard was not established when designing (designing), then it is established by the user of III and it is specified in its local legal acts.

The category of the radiation device containing the closed III is determined by category of the closed III.

7. Producers (manufacturers) of the closed III shall specify category of the closed III on degree of radiation hazard in passports (certificates) of the closed III according to activity of the radionuclides containing in the closed III date of execution of the specified passports (certificates).

8. If for the closed III imported into the Republic of Belarus the category on degree of radiation hazard in passports (certificates) of the closed III is not specified, then the seller (supplier) of the closed III in the Republic of Belarus shall establish category of the closed III imported into the Republic of Belarus on degree of radiation hazard and specify this category in the passport (certificate) of the closed III or in the document attached to it.

Appendix 1

to the Instruction about procedure and criteria of reference of sources of ionizing radiation to categories on degree of radiation hazard

Criteria of reference of III to categories on degree of radiation hazard

Category

Classification of III depending on scope

The relation of activity of the closed III to indicator of danger of radionuclide, A/D1

Category III type on degree of radiation hazard

1

2

3

4

The first

Irradiators technology. Equipment for remote radiation therapy

A/D > 1000

III of the highest danger

Works with open III on the I class

The second

Radio nuclide defectoscopes. Equipment for brachytherapy of high/average capacities of doses

1000> A/D > 10

III of high danger

Accelerators of charged particles, including inspection customs accelerating complexes. Works with open III on the II class

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