Final answer:
The question seeks information on the minimum requirements for lead aprons as mandated by 22 CFR, which generally details federal regulations. Protective lead aprons are used in dental radiography to shield patients from unnecessary radiation, and multiple safety measures are implemented to protect both patients and technicians. The exact specification from 22 CFR was not provided but would be available in the latest edition of the CFR.
Step-by-step explanation:
The question inquires about the minimum requirements for lead aprons according to 22 CFR. While the context provided does not specify the exact section of 22 CFR that details the requirements for lead aprons, the provided information emphasizes the importance of using lead aprons in dental radiography for protective purposes. When X-rays are used, the lead apron is placed over the patient to shield the body parts not being imaged from radiation. Additionally, other safety measures are employed such as using fast films to reduce exposure time, shielding the X-ray tube, and having the technician stand behind lead-lined protection to minimize occupational exposure.
However, to find the specific minimum requirements according to 22 CFR, one would need to consult the latest edition of the Code of Federal Regulations (CFR), which outlines various provisions for occupational safety, public health, and other areas that might include radiation protection.