Section 157.36. Performance requirements for industrial radiography equipment.

 

(1)   Equipment. Equipment used in industrial radiographic operations shall meet all the following minimum criteria:

(a) Except as provided in sub. (2) , each radiographic exposure device, source assembly or sealed source and all associated equipment shall meet the requirements specified in ANSI N432-1980 "Radiological Safety for the Design and Construction of Apparatus for Gamma Radiography".

1. A licensee shall ensure that each radiographic exposure device has attached to it a durable, legible, clearly visible label bearing all the following information:

a. Chemical symbol and mass number of the radionuclide in the device.

b. Activity and the date on which activity was last measured.

c. Model or product code and serial number of the sealed source.

d. Name of the manufacturer of the sealed source.

e. Licensee's name, address and telephone number.

2. Radiographic exposure devices intended for use as type B packages shall meet the applicable transportation requirements of subch. XIII .

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.

(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:

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.

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.

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.

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."

5. The label in subd. 4. may not interfere with the safe operation of the exposure device or associated equipment.

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.

7. Guide tubes shall be used when moving the source out of the device.

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.

9. The guide tube exposure head connection shall be able to withstand the tensile test for control units specified in ANSI N432 - 1980.

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.

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

(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.

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.

Note

The publication ANSI N432-1980 "Radiological Safety for the Design and Construction of Apparatus for Gamma Radiography" 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 Legislative Reference Bureau. Microsoft Windows NT 6.1.7601 Service Pack 1 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. Microsoft Windows NT 6.1.7601 Service Pack 1