CEI EN 60846-1:2015 輻射防護儀器 β、X 和伽馬輻射的環境和/或定向劑量當量(率)計和/或監視器 第1部分:便攜式工作場所和環境儀表和監視器
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