GB/T 31835-2015

This standard specifies the technical requirements, test methods, and performance criteria for pocket-sized personal radiation devices (PRDs) used to detect and alert users to the presence of radioactive materials. It is applied in contexts such as nuclear security, border control, emergency response, and industrial radiation safety, where personnel require portable, wearable instruments for real-time monitoring of gamma radiation exposure and threat detection. The standard ensures these devices meet minimum sensitivity, alarm accuracy, and durability benchmarks for reliable operation in field environments.