calculation of the “decision threshold”, the “detection limit” and the “limits of the coverage interval” for a non-negative ionizing radiation measurand when counting measurements with preselection of time or counts are carried out. The measurand results from a gross count rate and a background count rate as well as from further quantities on the basis of a model of the evaluation. In particular, the measurand can be the net count rate as the difference of the gross count rate and the background count rate, or the net activity of a sample. It can also be influenced by calibration of the measuring system, by sample treatment and by other factors. applications on the basis of the ISO/IEC Guide 98-3-1 in ISO 11929-2, applications to unfolding methods in this document, and guidance to the application in ISO 11929-4. radiation metrology. It is restricted to applications for which the uncertainties can be evaluated on the basis of the ISO/IEC Guide 98-3 (JCGM 2008). In Annex A of ISO 11929-1:2019, the special case of repeated counting measurements with random influences is covered, while measurements with linear analogous ratemeters, are covered in Annex B of ISO 11929-1:2019. according to the ISO/IEC Guide 98-3-1. ISO 11929-2 also presents some explanatory notes regarding general aspects of counting measurements and on Bayesian statistics in measurements. This document deals with the evaluation of measurements using unfolding methods and counting spectrometric multi-channel measurements if evaluated by unfolding methods, in particular, for alpha- and gamma-spectrometric measurements. Further, it provides some advice on how to deal with correlations and covariances. procedure and then presents a wide range of numerical examples. similar model of the evaluation is involved. Further practical examples can be found, for example, NOTE A code system, named UncertRadio, is available for calculations according to ISO 11929- 1 to //www .thuenen .de/en/fi/fields -of -activity/marine -environment/coordination -centre -of -radioactivity/uncertradio/. The download contains a setup installation file which copies all files and folders into a folder specified by the user. After installation one has to add information to the PATH of Windows as indicated by a pop-up window during installation. English language can be chosen and extensive “help” information is available.
ISO 11929-3:2019由国际标准化组织 IX-ISO 发布于 2019-02-13。
ISO 11929-3:2019在国际标准分类中归属于: 17.240 辐射测量。
* 在 ISO 11929-3:2019 发布之后有更新,请注意新发布标准的变化。
3 术语和定义 本部分对常见的术语进行了定义,包括:方法确认、方法验证、实验室内方法确认、实验室间方法确认、定性方法、定量方法、确证方法、筛选方法、容许限、检出限、定量限、精密度、灵敏度、测量区间、自由度、准确度等。 ...
2 规范性引用文件 参考了ISO/IEC 指南99:2007国际计量学词汇-基本和通用概念及相关术语等文件。 3 术语和定义 本部分对常见的术语进行了定义,包括:方法确认、方法验证、实验室内方法确认、实验室间方法确认、定性方法、定量方法、确证方法、筛选方法、容许限、检出限、定量限、精密度、灵敏度、测量区间、自由度、准确度等。 ...
2 规范性引用文件参考了ISO/IEC 指南99:2007国际计量学词汇-基本和通用概念及相关术语等文件。 3 术语和定义 本部分对常见的术语进行了定义,包括:方法确认、方法验证、实验室内方法确认、实验室间方法确认、定性方法、定量方法、确证方法、筛选方法、容许限、检出限、定量限、精密度、灵敏度、测量区间、自由度、准确度等。 ...
3术语和定义本部分对常见的术语进行了定义,包括:方法确认、方法验证、实验室内方法确认、实验室间方法确认、定性方法、定量方法、确证方法、筛选方法、容许限、检出限、定量限、精密度、灵敏度、测量区间、自由度、准确度等。 ...
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号