GB/T 4835.1-2012

Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 1: Portable workplace and environmental meters and monitors

辐射防护仪器 β、X和γ辐射周围和/或定向剂量当量（率）仪和/或监测仪 第1部分：便携式工作场所和环境测量仪与监测仪