At present, the ray device is widely used in people's daily life, whether the radiation of the security inspection equipment is safe, and whether the medical X-ray is harmful to the human body are all issues of great public concern. Recently, the Ministry of Environmental Protection and the National Health and Family Planning Commission have formulated and released a new version of "Classification of Radiation Devices" (hereinafter referred to as "Classification") to further clarify related issues. According to the potential harm to human health and environment of the ray device, the "Classification" classifies the ray device into Class I, Class II, and Class III from high to low. Short-term exposure in the case of Class â… ray device can cause severe radiation damage to the irradiated person, and its safety and protection requirements are high; in case of Class â…¡ ray device, it can cause severe radiation damage to the irradiated person, and its safety and protection requirements It is relatively high; Class III ray devices generally do not cause radiation damage to exposed persons, and their safety and protection requirements are relatively simple. According to the "Classification", the ray devices belonging to category III include medical X-ray computed tomography (CT) devices; X-ray devices for human body safety inspection; medical diagnostic X-ray devices; X-ray luggage inspection devices; oral (dental) X-rays Device; X-ray diffractometer; radiotherapy simulation positioning device; X-ray fluorometer; X-ray blood irradiator; other various types of radiation detection devices (thickness measurement, weighing, aperture measurement, density measurement, etc.); ion injection (plant ) Into the device; veterinary X-ray device; electron beam welding machine, etc. It can be seen that the ray device is widely used in medical, security and other fields, and is closely related to the daily life of the public. Therefore, its safety and reliability have always been highly concerned. The "Classification" released this time further clarifies the potential hazards of ray devices to human health and the environment, which will help the public to further understand the ray devices, eliminate related rumors, and eliminate unnecessary panic. The "Classification" shall be effective as of the date of promulgation, and the former State Environmental Protection Administration Announcement No. 26 of 2006 shall be repealed at the same time.
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The desktop adopts a secure rounded corner design,Hidden school bag hook.
The front edge of the seat and cushion adopts a wave design, which effectively reduces the pressure on the hips and waist.