X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy—Part 1:Radiation characteristics and production methods
NORMA vydaná dňa 31.10.2025
Designation standards: GB/T 12162.1-2025
Note: K dispozici od: květen 2026
Publication date standards: 31.10.2025
Country: Chinese technical standard
Kategória: Technické normy GB