Mo. Code Regs. tit. 19 § 20-10.050

Current through Register Vol. 49, No. 23, December 2, 2024

Section 19 CSR 20-10.050 - Personnel Monitoring and Radiation Surveys

PURPOSE: This rule lists requirements for personnel monitoring and radiation surveys. Conditions under which routine monitoring of individuals occupationally exposed to radiation shall not be required are also listed.

(1) The user shall provide for radiation surveys and monitoring sufficient to assure compliance with other rules of this chapter. The radiation survey and monitoring shall be performed by, or under the direction of, a qualified expert using suitable instruments and methods for measuring radiation.

(2) Until an actual radiation survey can be performed, a written statement made by a qualified expert based on his/her analysis of the situation shall be acceptable as evidence of the absence of radiation hazard in a given area.

(3) Personnel monitoring shall be required for each individual for whom there is any reasonable possibility of receiving a weekly dose of all radiation exceeding fifty (50) millirems, taking into consideration the use of protective gloves, aprons or other radiation-limiting devices.

(4) Routine monitoring of individuals occupationally exposed to radiation from radiation machines shall not be required if-

(A) A qualified expert has specified the operating conditions under which there is no reasonable chance that any individual will be subjected to a dose of either more than twenty-five (25) millirems in any seven (7) consecutive days or more than three hundred twenty-five (325) millirems in any thirteen (13) consecutive weeks;

(B) The operating conditions in subsection (4)(A) of this rule are made known to all individuals who may be occupationally exposed to the radiation; and

(C) The installation continues to operate only under the specified conditions.

(5) Radiation surveys of sealed sources and sealed storage areas shall be made at least semiannually to insure the integrity of the containment. The survey shall be capable of detecting the presence of 0.005 microcurie of removable contamination. If the survey reveals the presence of 0.005 microcurie or more of removable contamination, the user shall immediately withdraw the sealed source from use and shall cause it to be decontaminated and repaired, or disposed of, in accordance with procedures established by a qualified expert.

19 CSR 20-10.050

AUTHORITY: section 192.420, RSMo 1986.* This rule was previously filed as 13 CSR 50-90.050. Original rule filed Nov. 9, 1964, effective Dec. 9, 1964.

*Original authority: 194.420, RSMo 1963.