BS ISO 18990:2025 - Measurement of Radioactivity in Urine

Introducing the BS ISO 18990:2025, a comprehensive standard that provides a meticulous test method for measuring radioactivity in urine, specifically focusing on isotopes ²³⁸Pu, ²³⁹Pu, and ²⁴⁰Pu. This standard is an essential tool for laboratories and professionals involved in radiological assessments, ensuring precise and reliable results through advanced methodologies.

Key Features

• Standard Number: BS ISO 18990:2025
• Pages: 46
• Release Date: December 17, 2025
• ISBN: 978 0 539 25382 5
• Status: Standard

Advanced Testing Methods

This standard outlines two sophisticated techniques for the measurement of radioactivity in urine samples:

1. Alpha Spectrometry: A highly sensitive method that allows for the precise detection and quantification of alpha-emitting isotopes. This technique is renowned for its ability to provide detailed insights into the isotopic composition of samples, making it invaluable for accurate radiological assessments.
2. Inductively Coupled Plasma Mass Spectrometry (ICP-MS): Known for its exceptional sensitivity and accuracy, ICP-MS is a powerful tool for detecting trace levels of plutonium isotopes. This method is particularly effective in handling complex matrices, ensuring reliable results even in challenging analytical scenarios.

Why Choose BS ISO 18990:2025?

The BS ISO 18990:2025 standard is designed to meet the highest industry standards, providing a robust framework for the measurement of radioactivity in biological samples. Here are some reasons why this standard is indispensable:

• Comprehensive Guidance: With 46 pages of detailed instructions, this standard offers thorough guidance on the preparation, execution, and interpretation of tests, ensuring that users can achieve consistent and accurate results.
• Up-to-Date Information: Released on December 17, 2025, this standard incorporates the latest advancements in radiological testing, ensuring that users have access to cutting-edge methodologies.
• Global Recognition: As an ISO standard, BS ISO 18990:2025 is recognized and respected worldwide, making it a valuable asset for laboratories and professionals operating in international contexts.

Applications

The BS ISO 18990:2025 standard is applicable in a variety of settings, including:

• Environmental Monitoring: Essential for assessing the impact of nuclear activities on the environment, this standard helps in monitoring and managing radioactive contamination in biological samples.
• Health and Safety: Critical for occupational health and safety, particularly in industries where workers may be exposed to radioactive materials. This standard aids in the assessment of internal contamination levels, ensuring compliance with safety regulations.
• Research and Development: A valuable resource for scientific research, this standard supports studies on the behavior and effects of plutonium isotopes in biological systems.

Conclusion

The BS ISO 18990:2025 standard is an indispensable resource for professionals involved in the measurement of radioactivity in urine. With its detailed methodologies and comprehensive guidance, it ensures accurate and reliable results, supporting a wide range of applications from environmental monitoring to occupational health and safety. By adhering to this standard, laboratories and professionals can maintain the highest levels of precision and compliance in their radiological assessments.

BS ISO 18990:2025

This standard BS ISO 18990:2025 Measurement of radioactivity in urine-²³⁸Pu, ²³⁹Pu and ²⁴⁰Pu - Test method using alpha spectrometry or ICP-MS is classified in these ICS categories:

• 17.240 Radiation measurements