Section 325.5298. Class C installations.

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(1) Class C installations shall comply with all requirements of rule 296 except for a permissible exposure rate of 50 milliroentgens per hour at any accessible external point.

(2) The maximum weekly exposure time of sources of radiation within the enclosure shall be established by the department under the conditions specified by the licensee or registrant at the time of application.

(3) Warning signs shall be posted in those areas outside the enclosure in which the radiation exposure rate in air at any accessible external point exceeds 2 milliroentgens per hour with the source of radiation placed in the shortest source-to-wall radiographically usable position under conditions of maximum radiation output permitted by the design or limited operating characteristics of the radiographic exposure device or radiation machine.

History: 1979 AC.

                    
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