DHS 157.27(3)(f)(f) A licensee or registrant shall ensure that no objects, materials or substances, such as facial hair, or any conditions that interfere with the face to facepiece seal or valve function, and that are under the control of the respirator wearer, are present between the skin of the wearer’s face and the sealing surface of a tight-fitting respirator facepiece.

DHS 157.27(3)(g)(g) In estimating the dose to individuals from intake of airborne radioactive materials, the concentration of radioactive material in the air that is inhaled when respirators are worn is initially assumed to be the ambient concentration in air without respiratory protection, divided by the assigned protection factor. If the dose is later found to be greater than the estimated dose, the corrected value must be used. If the dose is later found to be less than the estimated dose, the corrected value may be used.

DHS 157.27(4)(a)(a) A licensee or registrant shall obtain authorization from the department before using assigned protection factors in excess of those specified in ch. DHS 157 Appendix D.

DHS 157.27(4)(b)(b) The department may authorize a licensee or registrant to use higher assigned protection factors on receipt of an application that meets the following criteria:

DHS 157.27(4)(b)2.2. Demonstrates that the respiratory protection equipment provides these higher protection factors under the proposed conditions of use.

DHS 157.27 HistoryHistory: CR 01-108: cr. Register July 2002 No. 559, eff. 8-1-02; correction in (4) (a) made under s. 35.17, Stats., Register January 2018 No. 745.

DHS 157.28(1)(a)(a) Security of stored radioactive material. A licensee or registrant shall secure licensed or registered radioactive material that is stored in an unrestricted area from unauthorized removal or access.

DHS 157.28(1)(b)(b) Control of radioactive material not in storage. A licensee or registrant shall maintain constant surveillance, or use devices or administrative procedures, to prevent unauthorized use of licensed or registered radioactive material that is in an unrestricted area and that is not in storage.

DHS 157.28(2)(a)(a) A registrant shall secure registered radiation machines from unauthorized removal.

DHS 157.28(2)(b)(b) A registrant shall use devices or administrative procedures to prevent unauthorized use of registered radiation machines.

DHS 157.28 HistoryHistory: CR 01-108: cr. Register July 2002 No. 559, eff. 8-1-02; CR 06-021: am. (1) (a) Register October 2006 No. 610, eff. 11-1-06.

DHS 157.29(1)(a)(a) Standard radiation symbol. Unless otherwise authorized by the department, the standard radiation symbol shall use the colors magenta, purple or black on a yellow background and shall be the 3-bladed design depicted in Figure DHS 157.29.

DHS 157.29(1)(b)(b) Exception to color requirements for standard radiation symbol. Notwithstanding the requirements of par. (a), a licensee or registrant is authorized to label sources, source holders or device components containing sources of radiation that are subjected to high temperatures with conspicuously etched or stamped radiation caution symbols and without a color requirement.

DHS 157.29(1)(c)(c) Additional information on signs and labels. In addition to the contents of signs and labels prescribed in this section, a licensee or registrant may provide, on or near the required signs and labels, additional information, as appropriate, to make individuals aware of potential radiation exposures and to minimize the exposures.

DHS 157.29(2)(a)(a) Posting of radiation areas. A licensee or registrant shall post a conspicuous sign or signs bearing the radiation symbol and the words “CAUTION, RADIATION AREA” in each radiation area.