DZ/T 0101.12-1994
Active
JJG 521-2024
Active
National Metrology and Inspection Regulations JJG
JJG 521-2024 Verification Regulation of X and Gamma Radiation Air Kerma Ratemeters for Environmental Monitoring
JJG 521-2024 Verification Regulation of X and Gamma Radiation Air Kerma Ratemeters for Environmental Monitoring
Basic Information
Standard Code:
JJG 521-2024
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2024-09-18
Implement Date:
2025-03-18
Pages:
20 pages
Scope
This procedure is applicable to the initial verification, subsequent verification, and in-use inspection of portable, mobile, and fixed instruments used to measure the ambient X and γ radiation air kerma rate. The air kerma rate K·a is generated by external X and γ radiation, with the X and γ radiation energy range being 80 keV to 15 MeV; the air kerma rate range is not less than 30 nGy/h to 30 μGy/h. This procedure is not applicable to the verification of instruments used to measure the ambient X and γ radiation air kerma (cumulative dose), nor to the verification of passive detection devices such as film dosimeters, thermoluminescent dosimeters (TLDs), optically stimulated luminescence (OSL) dosimeters, radium-platinum-luminous (RPL) dosimeters, or quartz wire electrometers. It is also not applicable to measurement systems for β and neutron radiation.
Development Information
Replace the following standards
Referenced Standards
JJF 1001-1998 General Terms in Metrology and Their Definitions
JJF 1001-2011 General Terms in Metrology and Their Definitions
JJF 1035-2006 Metrological Terms and Their Definitions for Ionizing Radiation
GB/T 4835.1-2012 Radiation protection instrumentation—Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta,X and gamma radiation—Part 1:Portable workplace and environmental meters and monitors
GB/T 4960.1-1996 Glossary of terms:nuclear science and technology—Nuclear physics and nuclear chemistry
GB/T 4960.1-2010 Glossary of nuclear science and technology terms—Part 1:Nuclear physics and nuclear chemistry
GB/T 4960.6-1996 Glossary of terms:nuclear science and technology—Nuclear instrumentation
GB/T 4960.6-2008 Glossary of terms for nuclear science and technology—Part 6:Nuclear instrumentation
GB/T 12162.1-2000 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
GB/T 12162.2-2004 X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy—Part 2:Dosimetry for radiation protection over the energy ranges 8keV to 1.3 MeV and 4MeV to 9MeV
IEC 61017:2016
GB/T 12162.2-2025 X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy—Part 2:Dosimetry for radiation protection over the energy ranges from 8 keV to 1.3 MeV and 4 MeV to 9 MeV
GB/T 12162.1-2025 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
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