ISO 18589-6:2019 环境中辐射的测量 土壤 第6部分：总α和β活性的测量 用气体流量比例计数的试验方法

标准编号：ISO 18589-6:2019

中文名称：环境中辐射的测量 土壤 第6部分：总α和β活性的测量 用气体流量比例计数的试验方法

英文名称：Measurement of radioactivity in the environment — Soil — Part 6: Gross alpha and gross beta activities — Test method using gas-flow proportional counting

发布日期：2019-12

标准范围

该文件提供了一种方法，允许估计土壤样品中存在的α-和β-发射体的总放射性。它基本上适用于基于比较测量的系统检查或初步现场研究，以指导测试人员选择优先测量的土壤样品和实施的具体分析方法。总α或β放射性通常不同于存在的放射性核素的有效放射性的总和，因为按照惯例，对所有α发射分配相同的α计数效率，对所有β发射分配相同的β计数效率。土壤包括基岩和矿石中的岩石以及建筑材料和产品、陶器等。使用天然放射性物质（NORM）或涉及技术增强天然放射性物质的工艺流程（TENORM），例如矿砂的开采和加工或磷肥的生产和使用。遵循适当的取样程序[2][3][4][5][7][8]，本文件中描述的测试方法也可用于评估污泥、沉积物、建筑材料和产品中α-和β-发射体的总放射性。为简化起见，本文件中使用的术语“土壤”涵盖了上述元素的集合。

This document provides a method that allows an estimation of gross radioactivity of alpha- and beta-emitters present in soil samples. It applies, essentially, to systematic inspections based on comparative measurements or to preliminary site studies to guide the testing staff both in the choice of soil samples for measurement as a priority and in the specific analysis methods for implementation.The gross α or β radioactivity is generally different from the sum of the effective radioactivities of the radionuclides present since, by convention, the same alpha counting efficiency is assigned for all the alpha emissions and the same beta counting efficiency is assigned for all the beta emissions.Soil includes rock from bedrock and ore as well as construction materials and products, potery, etc. using naturally occurring radioactive materials (NORM) or those from technological processes involving Technologically Enhanced Naturally Occurring Radioactive Materials (TENORM), e.g. the mining and processing of mineral sands or phosphate fertilizer production and use.The test methods described in this document can also be used to assess gross radioactivity of alpha- and beta-emitters in sludge, sediment, construction material and products following proper sampling procedure^{[2][3][4][5][7][8]}.For simplification, the term "soil" used in this document covers the set of elements mentioned above.

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