DHS 157.36(1)(a)2.2. Radiographic exposure devices intended for use as type B packages shall meet the applicable transportation requirements of subch. XIII.

DHS 157.36(1)(a)3.3. Modification of radiographic exposure devices, source changers and source assemblies and associated equipment is prohibited, unless the design of any replacement component, including source holder, source assembly, controls or guide tubes would not compromise the design safety features of the system.

DHS 157.36(1)(b)(b) The following additional requirements apply to radiographic exposure devices, source assemblies and associated equipment that allow the source to be moved out of the device for radiographic operations or to source changers:

DHS 157.36(1)(b)1.1. The coupling between the source assembly and the control cable shall be designed so that the source assembly will not become disconnected if cranked outside the guide tube. The coupling shall be constructed so that it cannot be unintentionally disconnected under normal and reasonably foreseeable abnormal conditions.

DHS 157.36(1)(b)2.2. The device must automatically secure the source assembly when it is cranked back into the fully shielded position within the device. This securing system may only be released by means of a deliberate operation on the exposure device.

DHS 157.36(1)(b)3.3. The outlet fittings, lock box and drive cable fittings on each radiographic exposure device shall be equipped with safety plugs or covers installed during storage and transportation to protect the source assembly from water, mud, sand or other foreign matter.

DHS 157.36(1)(b)4.4. Each sealed source or source assembly shall have attached to it or engraved on it a durable, legible, visible label with the words: “DANGER — RADIOACTIVE.”

DHS 157.36(1)(b)6.6. The guide tube shall be able to withstand a crushing test that closely approximates the crushing forces that are likely to be encountered during use and be able to withstand a kinking resistance test that closely approximates the kinking forces that are likely to be encountered during use.

DHS 157.36(1)(b)8.8. An exposure head or similar device designed to prevent the source assembly from passing out of the end of the guide tube shall be attached to the outermost end of the guide tube during industrial radiography operations.

DHS 157.36(1)(b)9.9. The guide tube exposure head connection shall be able to withstand the tensile test for control units specified in ANSI N432 - 1980.

DHS 157.36(1)(b)10.10. Source changers shall provide a system for ensuring that the source will not be accidentally withdrawn from the changer when connecting or disconnecting the drive cable to or from a source assembly.

DHS 157.36(1)(c)(c) All radiographic exposure devices and associated equipment in use after January 10, 1996 shall comply with the requirements of this section.

DHS 157.36(2)(2) Exception. Equipment used in industrial radiographic operations need not comply with 6.6.2 of the Endurance Test in ANSI N432 - 1980 “Radiological Safety for the Design and Construction of Apparatus for Gamma Radiography” if the prototype equipment has been tested using a torque value representative of the torque that an individual using the radiography equipment may reasonably exert on the lever or crankshaft of the drive mechanism.

DHS 157.36 NoteNote: The publication N432-1980 “Radiological Safety for the Design and Construction of Apparatus for Gamma Radiography”, ANSI, published by the ANSI, may be consulted at the Department of Health Services, Radiation Protection Section, 1 West Wilson St, Room 150, Madison WI 53702-0007 or at the Secretary of State’s Office or the Legislative Reference Bureau.

DHS 157.36 HistoryHistory: CR 01-108: cr. Register July 2002 No. 559, eff. 8-1-02; CR 06-021: am. (1) (a) (intro.), 1. (intro.), 3., (b) 9. and (2) Register October 2006 No. 610, eff. 11-1-06.

DHS 157.37(1)(1) Maximum exposure rate limits. The maximum exposure rate limits for storage containers and source changers are 2 millisieverts (200 mrem) per hour at any exterior surface and 0.1 millisieverts (10 mrem) per hour at one meter from any exterior surface with the sealed source in the shielded position.

DHS 157.37(2)(a)(a) A radiographic exposure device shall have a lock or outer locked container designed to prevent unauthorized or accidental removal of the sealed source from its shielded position. The exposure device and its container shall be kept locked when not under direct surveillance by a radiographer or a radiographer’s assistant, except at permanent radiographic installations. If a keyed lock, the key shall be removed at all times except to open or close the lock on the device or container. In addition, during radiographic operations the sealed source assembly shall be secured in the shielded position each time the source is returned to that position.

DHS 157.37(2)(b)(b) Each sealed source storage container and source changer shall have a lock or outer locked container designed to prevent unauthorized or accidental removal of the sealed source from its shielded position. Storage containers and source changers shall be kept locked when containing sealed sources except when under the direct surveillance of a radiographer or a radiographer’s assistant. If a keyed lock, the key shall be removed at all times.

DHS 157.37(2)(c)(c) The control panel of all portable radiation machines shall be equipped with a lock that will prevent the unauthorized use of an x-ray system or the accidental production of radiation. The radiation machine shall be kept locked and the key removed at all times except when under the direct visual surveillance of a radiographer or a radiographer’s assistant.

DHS 157.38(1)(1) Requirement. A licensee shall keep sufficient calibrated and operable radiation survey instruments at each location where sources of radiation are present to make the radiation surveys required by this subchapter and subch. III. Instrumentation required by this subchapter shall be capable of measuring a range from 0.02 millisieverts (2 mrem) per hour through 0.01 sievert (1 rem) per hour.