GB/T 39733-2020 Recycling iron-steel materials

GB/T 39733-2024 Recycling iron-steel materials

GB 5085.1 GB 5085.2 GB 5085.3 GB 5085.4 GB 5085.5 GB 5085.6 GB/T 5202-1985 Alpha, beta and alpha-beta surface contamination meters and monitors GB/T 5202-2008 Radiation protection instrumentation—Alpha, beta and alpha/beta(beta energy＞60 keV) contamination meters and monitors GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 12162.3-2004 X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy—Part 3:Calibration of area and personal dosemeters and the measurement of their response as a function of energy and angle of incidence GB 18871-2002 Basic standards for protection against ionizing radiation and for the safety of radiation sources GB/T 12162.3-2025 X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy—Part 3:Calibration of area and personal dosemeters and the measurement of their response as a function of energy and angle of incidence