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
NORM herausgegeben am 11.12.2000
Designation standards: GB/T 12162.1-2000
Publication date standards: 11.12.2000
Country: Chinese technical standard
Kategorie: Technische Normen GB