HJ 1149-2020
Determination of gamma radionuclides in ambient air aerosol by filter membrane pressing/gamma spectrometry (English Version)
- Standard No.
- HJ 1149-2020
- Language
- Chinese, Available in English version
- Release Date
- 2020
- Published By
- Professional Standard - Environmental Protection
- Latest
- HJ 1149-2020
- Scope
- This standard specifies a method for the determination of gamma radionuclides in ambient air aerosols using filter membrane tableting/gamma energy spectroscopy. This standard is applicable to routine monitoring of radiation environments and determination of gamma radionuclides in ambient air aerosols. 3 When the sampling volume is 10000 m (standard state) and the measurement time is 24 hours, the detection 3 3 lower limit of each gamma radionuclide measured in this standard is 5 μBq/m ~ 100 μBq/m. The lower detection limit is shown in Appendix A.
HJ 1149-2020 Referenced Document
- GB/T 11713 General analytical methods of high-purity germanium gamma spectrometer
- GB/T 11743 Determination of radionuclides in soil by gamma spectrometry
- HJ 1009 Technical specification for operation of radiation environmental air automatic monitoring station
HJ 1149-2020 history
- 2020 HJ 1149-2020 Determination of gamma radionuclides in ambient air aerosol by filter membrane pressing/gamma spectrometry
