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
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 hosphate 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 .
For simplification, the term “soil” used in this document covers the set of elements mentioned above.
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