ISO 18589-6:2019
环境中放射性的测量.土壤.第6部分:总α和总β放射性.用气体流量比例计数的试验方法

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

标准号

ISO 18589-6:2019

发布

2019年

发布单位

国际标准化组织

当前最新

ISO 18589-6:2019

 

 

引用标准

ISO 11074 ISO 18589-1 ISO 18589-2 ISO 18589-4 ISO 80000-10 ISO/IEC 17025

适用范围

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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