ISO 22515:2021 水质 铁-55.使用液体闪烁计数的试验方法

标准编号：ISO 22515:2021

中文名称：水质 铁-55.使用液体闪烁计数的试验方法

英文名称：Water quality — Iron-55 — Test method using liquid scintillation counting

发布日期：2021-05

标准范围

This document specifies a test method for the determination of iron-55 ^{(-55 Fe)} activity concentration in samples of all types of water using liquid scintillation counting (LSC). Using currently available 55 liquid scintillation counters, this test method can measure the ⁵⁵Fe activity concentrations in the -1 range from the limit of detection up to 120 mBq ^-1. These values can be achieved with a counting time between 7 200 s and 10 800 s for a sample volume from 0,5 l to 1,5 l. Higher activity concentrations can be measured by either diluting the sample or using smaller sample aliquots or both.

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