X and gamma reference radiation for calibrating dose meters and doserate meters and for determining their response as a function of photon energy--Part 1:Radiation characteristics and production methods
NORMA vydaná dňa 11.12.2000
Označenie normy: GB/T 12162.1-2000
Dátum vydania normy: 11.12.2000
Krajina: Čínska technická norma
Kategória: Technické normy GB