1.4 practices and facilities in line with the x-ray radiation protection limits the exemption set out in Appendix C may be exempted from the formalities prescribed in 1.3. 1.5 before proceeding engage in the following practices must be approved in advance. A. Construction administered to humans or radiation protection to human injection of radioactive material, as well as the implementation of human radiation exposure. B. toys containing radioactive substances. C. Adding radioactive substances in medical products, cosmetics and household goods (excluding listed in Appendix C3) processing production. D. Sales irradiated fresh or preserved foods. In the normal course of operation may be some special cases of radiation protection project, which requires a small number of staff members to accept irradiated exceed the annual dose equivalent limit. This irradiation must first go through careful planning, leadership and protection by the unit responsible for approval, the effective dose equivalent in a single event is not greater than 100mSv (10rem), life is not more than 250mSv (25rem) and meet 2.2.1 paragraph. Effective dose equivalent to accept this preplanned special exposure under medical observation and detailed due credited to individual doses and health records. Radiation protection construction, Hebei Ericsson (certified), radiation protection provided by the Hebei Medical Engineering Co., Ericsson. Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) Hebei Hengshui, a leader in medical device manufacturing equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hebei Ericsson leadership with the staff warmly welcome all inquiries negotiations to create a better future Hebei Ericsson.