А.3 Expertise requirements to officers carrying out the verification tests
Persons certified as State Verification Officers are allowed to carry out verification
tests and/or to interpret the results obtained.
А.4 Safety requirements
The following safety requirements should be observed when verification tests are
carried out by the officers:
- works involving the use of radioactive sources should be carried out in conformity
with the requirements cited in "Major health rules for treating radioactive materials
and other sources of ionizing radiation" and "Standards of radiation safety – SRS
2000", as well as with the instructions for the accident prevention that are in force in
the site where verification tests are carried out;
- the verification process should be considered as work under special conditions.
А.5 Verification conditions
The following conditions are required for carrying out verification tests:
temperature of the environment, °C 20 ± 5;
relative air humidity, % 60 ± 15;
atmospheric pressure, kPa 101.3 ± 4;
background gamma radiation, µSv/h not more than 0.20.
А.6 Preparation for verification tests
Verification officers should do the following preparatory work before the verification
tests:
- study the Operating Manual of the dosimeter;
- prepare the dosimeter for operation according to the section 2 of the Operating
Manual.
А.7 Verification procedure
А.7.1 During the external examination the dosimeter should be tested against the
following requirements:
- the delivery kit of the tested dosimeter should be the same as described in the
manual;
- the initial or last verification test should be recorded in the manual;
- the dosimeter should be marked with clear inscriptions;
- pollution and mechanical damages that may influence the work of the dosimeter
should be eliminated.
If the above requirements are not satisfied, the dosimeter cannot be accepted for
further verification.
А.7.2 During testing it is necessary:
- to check the operation of the dosimeter as described in the section 2 of the manual;
- to set the maximum individual dose equivalent rate (DER) and individual dose
equivalent (DE) threshold values as described in the section 2 of the manual.
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