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Homepage>BSI Standards >17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA>17.240 Radiation measurements>BS EN ISO 19361:2025 Measurement of radioactivity. Determination of beta emitters activities. Test method using liquid scintillation counting
immediate downloadReleased: 2025-08-21
BS EN ISO 19361:2025 Measurement of radioactivity. Determination of beta emitters activities. Test method using liquid scintillation counting

BS EN ISO 19361:2025

Measurement of radioactivity. Determination of beta emitters activities. Test method using liquid scintillation counting

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Standard number:BS EN ISO 19361:2025
Pages:34
Released:2025-08-21
ISBN:978 0 539 28634 2
Status:Standard

BS EN ISO 19361:2025 - Precision in Measuring Radioactivity: Determination of Beta Emitters Activities

Introducing the BS EN ISO 19361:2025, a comprehensive standard that sets the benchmark for the measurement of radioactivity, specifically focusing on the determination of beta emitters activities using the advanced technique of liquid scintillation counting. This standard is an essential resource for professionals in the field of radiochemistry, environmental science, and nuclear physics, providing a detailed methodology to ensure accurate and reliable results.

Key Features of BS EN ISO 19361:2025

  • Standard Number: BS EN ISO 19361:2025
  • Pages: 34
  • Release Date: August 21, 2025
  • ISBN: 978 0 539 28634 2
  • Status: Standard

Comprehensive Coverage

This standard spans 34 pages of in-depth information, meticulously detailing the procedures and protocols necessary for the precise measurement of beta emitters. It is designed to guide users through the complexities of liquid scintillation counting, a technique renowned for its sensitivity and accuracy in detecting low levels of radioactivity.

Why Choose BS EN ISO 19361:2025?

The BS EN ISO 19361:2025 is not just a document; it is a vital tool for ensuring the integrity and accuracy of radioactivity measurements. Here’s why it stands out:

1. Precision and Accuracy

With the increasing need for precise measurement in various scientific and industrial applications, this standard provides a robust framework for achieving high accuracy in the determination of beta emitters. It ensures that your measurements are not only reliable but also reproducible, which is crucial for scientific research and regulatory compliance.

2. Advanced Methodology

The standard employs liquid scintillation counting, a sophisticated method that enhances the detection capabilities for beta particles. This technique is particularly effective in measuring low-energy beta emitters, making it indispensable for laboratories and research facilities focused on environmental monitoring, health physics, and nuclear safety.

3. Up-to-Date and Relevant

Released on August 21, 2025, this standard reflects the latest advancements and best practices in the field of radioactivity measurement. It is aligned with international standards, ensuring that your methodologies are globally recognized and respected.

Applications of BS EN ISO 19361:2025

The applications of this standard are vast and varied, making it a critical resource across multiple sectors:

  • Environmental Monitoring: Essential for assessing the radioactivity levels in soil, water, and air, ensuring environmental safety and compliance with regulatory standards.
  • Health Physics: Vital for protecting human health by accurately measuring radiation exposure in medical and occupational settings.
  • Nuclear Industry: Crucial for the safe operation of nuclear facilities, including power plants and research reactors, by monitoring and controlling radioactive emissions.
  • Research and Development: Supports scientific research by providing a reliable method for studying radioactive materials and their behavior.

Conclusion

The BS EN ISO 19361:2025 is an indispensable standard for anyone involved in the measurement of radioactivity. Its detailed guidance on the determination of beta emitters activities using liquid scintillation counting ensures that you can achieve the highest levels of precision and accuracy in your work. Whether you are in environmental science, health physics, or the nuclear industry, this standard is your key to maintaining excellence and compliance in radioactivity measurement.

Equip your laboratory or research facility with the BS EN ISO 19361:2025 and stay at the forefront of radioactivity measurement technology. Embrace the future of precision and reliability in your scientific endeavors.

DESCRIPTION

BS EN ISO 19361:2025


This standard BS EN ISO 19361:2025 Measurement of radioactivity. Determination of beta emitters activities. Test method using liquid scintillation counting is classified in these ICS categories:
  • 17.240 Radiation measurements
This document applies to the determination of beta emitters activity concentration using liquid scintillation counting. The method requires the preparation of a scintillation source, which is obtained by mixing the test sample and a scintillation cocktail. The test sample can be liquid (aqueous or organic), or solid (particles or filter or planchet). NOTE            Planchet are samples, described in 8.5, out of solid material e.g. small metal, plastic or glass pans or support material made of these materials This document describes the conditions for measuring the activity concentration of beta emitter radionuclides by liquid scintillation counting[2]. The choice of the test method using liquid scintillation counting involves the consideration of the potential presence of other beta-, alpha- and gamma emitter radionuclides in the test sample. In this case, a specific sample treatment by separation or extraction is implemented to isolate the radionuclide of interest in order to avoid any interference with other beta-, alpha- and gamma-emitting radionuclides during the counting phase. This document is applicable to all types of liquid samples having an activity concentration ranging from about 1 Bq·l?1 to 106 Bq·l?1. For a liquid test sample, it is possible to dilute liquid test samples in order to obtain a solution having an activity compatible with the measuring instrument. For solid samples, the activity of the prepared scintillation source shall be compatible with the measuring instrument. The measurement range is related to the test method used: nature of test portion, preparation of the scintillator - test portion mixture, measuring assembly as well as to the presence of the co-existing activities due to interfering radionuclides. Test portion preparations (such as distillation for 3H measurement, or benzene synthesis for 14C measurement, etc.) are outside the scope of this document and are described in specific test methods using liquid scintillation[3][[4][5][6][7][8][9][10].