ISO 18990:2025

Published (Edition 1, 2025)

ISO 18990:2025

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Abstract

This document specifies approaches for the determination of plutonium isotopes (²³⁸Pu, ²³⁹Pu and ²⁴⁰Pu) in urine using alpha spectrometry or inductively coupled plasma mass spectrometry (ICP-MS).

It is applicable to the measurement of plutonium isotopes at levels which are appropriate for

— workers handling plutonium in planned exposure situations, where detection limits are sufficiently low to be in accordance with dose limits, and

— workers, members of the public and emergency responders in emergency exposure situations, where required detection limits can be much higher, and results need to be reported in a short timescale.

This document does not provide information on when monitoring is carried out or the interpretation of the results in terms of dose or biological effects.

General information

Status
: Published

Publication date
: 2025-12

Stage
: International Standard published [60.60]
Edition
: 1

Number of pages
: 37
Technical Committee :
ISO/TC 85/SC 2

ICS :
17.240
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