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>BSI Standards >17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA>17.240 Radiation measurements>BS EN ISO 19581:2025 Measurement of radioactivity. Gamma emitting radionuclides. Rapid screening method using scintillation detector gamma-ray spectrometry
immediate downloadReleased: 2025-10-07
BS EN ISO 19581:2025 Measurement of radioactivity. Gamma emitting radionuclides. Rapid screening method using scintillation detector gamma-ray spectrometry

BS EN ISO 19581:2025

Measurement of radioactivity. Gamma emitting radionuclides. Rapid screening method using scintillation detector gamma-ray spectrometry

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Standard number:BS EN ISO 19581:2025
Pages:32
Released:2025-10-07
ISBN:978 0 539 28633 5
Status:Standard

BS EN ISO 19581:2025 - Measurement of Radioactivity: Gamma Emitting Radionuclides

Introducing the BS EN ISO 19581:2025, a comprehensive standard that sets the benchmark for the measurement of radioactivity, specifically focusing on gamma-emitting radionuclides. This standard is an essential resource for professionals in the field of radiological science, environmental monitoring, and nuclear safety, providing a rapid screening method using scintillation detector gamma-ray spectrometry.

Key Features of BS EN ISO 19581:2025

  • Standard Number: BS EN ISO 19581:2025
  • Pages: 32
  • Release Date: October 7, 2025
  • ISBN: 978 0 539 28633 5
  • Status: Standard

Comprehensive Coverage

This standard provides a detailed methodology for the rapid screening of gamma-emitting radionuclides, utilizing the advanced technology of scintillation detector gamma-ray spectrometry. With 32 pages of in-depth information, it serves as a crucial guide for ensuring accurate and reliable measurements in various applications, from environmental assessments to nuclear facility monitoring.

Why Choose BS EN ISO 19581:2025?

The BS EN ISO 19581:2025 standard is designed to meet the needs of professionals who require precise and efficient methods for measuring radioactivity. Here are some reasons why this standard is indispensable:

1. Precision and Accuracy

Utilizing scintillation detector gamma-ray spectrometry, this standard ensures high precision and accuracy in detecting gamma-emitting radionuclides. This technology is renowned for its sensitivity and ability to provide rapid results, making it ideal for both routine monitoring and emergency response situations.

2. Rapid Screening Method

The rapid screening method outlined in this standard allows for quick and efficient assessment of radioactivity levels. This is particularly beneficial in scenarios where time is of the essence, such as in the aftermath of a nuclear incident or during environmental surveys.

3. Comprehensive Guidelines

With clear and detailed guidelines, the BS EN ISO 19581:2025 standard provides users with the necessary tools to implement effective radioactivity measurement protocols. It covers everything from equipment setup to data interpretation, ensuring that users can achieve consistent and reliable results.

4. International Recognition

As an ISO standard, BS EN ISO 19581:2025 is recognized internationally, making it a valuable resource for organizations operating in multiple countries. It facilitates compliance with global safety and environmental standards, enhancing the credibility and reliability of your operations.

Applications of BS EN ISO 19581:2025

This standard is applicable across a wide range of industries and sectors, including:

  • Environmental Monitoring: Essential for assessing the impact of radioactive substances on the environment and ensuring public safety.
  • Nuclear Industry: Critical for monitoring and controlling radioactivity levels in nuclear power plants and research facilities.
  • Healthcare: Used in the management of radioactive materials in medical settings, ensuring patient and staff safety.
  • Emergency Response: Provides rapid assessment capabilities in the event of a radiological emergency, aiding in effective decision-making and response planning.

Stay Ahead with BS EN ISO 19581:2025

In an ever-evolving world where safety and precision are paramount, the BS EN ISO 19581:2025 standard is your trusted partner in the measurement of radioactivity. By adopting this standard, you ensure that your operations are aligned with the latest advancements in radiological science, providing peace of mind and confidence in your measurement processes.

Whether you are involved in environmental monitoring, nuclear safety, or healthcare, the BS EN ISO 19581:2025 standard is an invaluable resource that empowers you to achieve excellence in radioactivity measurement. Embrace the future of radiological assessment with this cutting-edge standard and ensure the highest levels of safety and accuracy in your operations.

DESCRIPTION

BS EN ISO 19581:2025


This standard BS EN ISO 19581:2025 Measurement of radioactivity. Gamma emitting radionuclides. Rapid screening method using scintillation detector gamma-ray spectrometry is classified in these ICS categories:
  • 17.240 Radiation measurements
This document specifies a screening test method to quantify rapidly the activity concentration of gamma-emitting radionuclides, such as 131I, 132Te, 134Cs and 137Cs, in solid or liquid test samples using gamma-ray spectrometry with lower resolution scintillation detectors as compared with the HPGe detectors (see IEC 61563[7]). This test method can be used for the measurement of any potentially contaminated environmental matrices (including soil), food and feed samples as well as industrial materials or products that have been properly conditioned[8]. Sample preparation techniques used in the screening method are not specified in this document, since special sample preparation techniques other than simple machining (cutting, grinding, etc.) should not be required. Although the sampling procedure is of utmost importance in the case of the measurement of radioactivity in samples, it is out of scope of this document; other International Standards for sampling procedures that can be used in combination with this document are available (see References [9] [10] [11] [12] [13] [14]). The test method applies to the measurement of gamma-emitting radionuclides such as 131I, 134Cs and 137Cs. Using sample sizes of 0,5 l to 1,0 l in a Marinelli beaker and a counting time of 5 min to 20 min, decision threshold of 10 Bq·kg?1 can be achievable using a commercially available scintillation spectrometer [e.g. thallium activated sodium iodide (NaI(Tl)) spectrometer 2” ? × 2” (50,8 mm Ø x 50,8 mm) detector size, 7 % resolution (FWHM) at 662 keV, 30 mm lead shield thickness]. This test method also can be performed in a “makeshift” laboratory or even outside a testing laboratory on samples directly measured in the field where they were collected. During a nuclear or radiological emergency, this test method enables a rapid measurement of the activity concentration of potentially contaminated samples to check against operational intervention levels (OILs) set up by decision makers that would trigger a predetermined emergency response to reduce existing radiation risks[2]. Due to the uncertainty associated with the results obtained with this test method, test samples requiring more accurate test results can be measured using high purity germanium (HPGe) detectors gamma-ray spectrometry in a testing laboratory, following appropriate preparation of the test samples[15][16]. This document does not contain criteria to establish the activity concentration of OILs.
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