WS/T 614-2018 in English

VALID

Rapid analysis method of radionuclides by gamma spectrometry under emergency

Issued on:2018-06-15
Implemented on:2018-12-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $250.00
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Standard No:	WS/T 614-2018
Document status:	VALID
Title in English:	Rapid analysis method of radionuclides by gamma spectrometry under emergency
Title in Chinese:	应急情况下放射性核素的γ能谱快速分析方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2018-06-15
Implemented on:	2018-12-01
ICS Classification:	13.280-Radiation protection
Chinese Classification:	C57-Radiological sanitation protection
Professional Classification:	WS-Hygiene
Related Keywords:	rapid analysis method gamma energy spectrum analysis emergency introduction analysis accurate quantitative analysis gamma spectrometry
Related Topics:	nuclide radionuclide energy spectrum Nuclear Spectrum Analyzer Radionuclide Analysis Instruments Food rapid analysis method radioactive analysis method Sulfide rapid analysis method In case of phase change Rapid analysis flash column chromatography Spectrum Analysis Quick Spectrum Samples for radionuclide analysis energy spectrum Rapid Mass Spectrometry Source energy spectrum Spectroscopy elements h3 nuclide analysis method Rapid Environmental Analysis Elemental Analysis Spectroscopy Elemental Spectroscopy Elemental Spectroscopy radionuclide method Spectroscopy elements Rapid identification of radioactivity Energy spectrometer analysis method emergency inorganic gas fast radioactive beam accelerator Spectroscopy and Elemental Analysis Transmission Spectroscopy Elemental Analysis of Energy Spectroscopy xrf fast analysis method Nucleic acid rapid analysis Qualitative analysis of energy spectrum radionuclide measurement mass spectrometry Qualitative analysis of energy spectrum radionuclide fast spectrum fast energy spectrum analysis Rapid Analysis Method for Viscosity Situation gas phase analysis General method for high-purity germanium energy spectrum analysis fast particle analysis Rapid Nucleic Acid Extraction Method Vitamin Rapid Analysis Rapid detection method for tuberculosis Scenario Tuberculosis rapid detection method WS/T404-2018 Chromatography Rate Equation WS T 586 2018 radioactivity Common energy spectrum analysis methods Methods of analyzing the psychology of things Abandoned Analyzer Verification Method wst 614-2018 Scenario for revalidation of analytical methods

本标准规定了应急情况下样品放射性核素γ能谱仪快速分析方法。
本标准适用于应急状态、紧急事件或在短时间内定性识别原始样品中的γ放射性核素种类以及定量分析样品中γ放射性核素活度浓度。

Introduction

Analysis of the core content of the standard

This standard establishes a complete technical framework for gamma energy spectrum analysis of radionuclides under emergency conditions, focusing on solving the two core problems of rapid qualitative identification and accurate quantitative analysis. The technical system includes three key links:

Simplified pre-treatment process (≤30 minutes)
High-purity germanium γ spectrometer rapid measurement
Triple calibration mechanism for quality control

Instrument configuration requirements

Equipment type	Technical parameters	Key points for emergency application
High-purity germanium detector	Energy range 40-2000keV Relative efficiency ≥15%	Marin cup sample box is preferred
Standard source	Covering Appendix A/B nuclides	Efficiency calibration must be completed in advance
Passive efficiency software	Deviation ≤ 15%	Requires actual measurement verification

Typical Sample Processing Solution

Food Sample Processing Case

Using leafy vegetables as an example: Remove inedible portion → Chop to 1cm³ → Weigh 500g → Package in a Marlin cup. The entire process takes less than 15 minutes. Compared to the conventional 48-hour processing time, this emergency method improves efficiency by 96%.

Innovative points in quality control

DER repetition error rate: quantitative evaluation of result reliability is achieved through formula (1)
Dual-track verification mechanism: active calibration data + passive software simulation cross-validation
Background dynamic monitoring: background spectrum must be collected before and after measurement

Standard implementation suggestions

1. Plan construction phase: the detector efficiency calibration library must be completed, and calibration data for at least 5 media (water/soil/milk, etc.) must be stored

2. Staff training focus: master the relationship between the minimum detectable activity concentration and measurement time in Appendix C, such as the LOD of I-131 measured in 2L of water for 10 minutes is 18Bq/L

3. Equipment maintenance cycle: high purity germanium The energy resolution of the gamma spectrometer should be calibrated quarterly to maintain FWHM ≤ 2.0keV @ 1332keV.

More samples: GB 50021-2001(2009) JC/T 2453-2018 GB 18306-2015

Sample only — not a preview of WS/T 614-2018