Comparison of different approaches of soil sampling uncertainty determination.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine(2023)
摘要
The ISO/IEC 17025 standard requires that all significant contributions have to be propagated to the measurement uncertainty, including also sampling uncertainties. We evaluated soil sampling uncertainties for gamma-ray spectrometry by using in-house and split-sample methods. By in-house method, the sampling uncertainty was determined by comparing standard deviations of measurement results and average analytical uncertainty. With split-sample method, it was calculated using between-sample and between-analysis variances. If analytical uncertainty is reliably determined, the in-house method is recommended because fewer measurements are needed.
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关键词
ANOVA,Between-analysis variance,Between-sample variance,Environmental samples,High resolution gamma-ray spectrometry,ISO/IEC 17025:2017,Radioactivity,Radionuclides,Sampling,Sampling uncertainty,Soil samples,Uncertainty,Uncertainty budget
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