China 'GB/T 4835.2-2013
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 4835.2-2013
Radiation protection instrumentation - Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation - Part 2: High range beta and photon dose and dose rate portable instruments for emergency radiation protection 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2部分：应急辐射防护用便携式高量程β和光子剂量与剂量率仪
Issued Date:2013-10-10
Implemented Date:2014-02-01
Issued by:
The Standardization Administration of the People's Republic of China
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