GB 8281-2000

This standard establishes the diagnostic criteria and management principles for chronic radiation sickness caused by prolonged external exposure to ionizing radiation. It is applied in occupational health settings, particularly for medical surveillance of workers in nuclear facilities, radiology departments, and industrial radiography who may receive cumulative low-dose radiation over time. The standard guides physicians in diagnosing the condition based on clinical symptoms, exposure history, and laboratory findings, while outlining treatment and work-restriction protocols.