NF ISO 2889, M62-236 (08/2023)

This document specifies performance criteria and recommendations for the design and use of systems for collecting samples of airborne radioactive materials from ducts and outfalls of nuclear installations. The requirements and recommendations in this document relate to samples taken for the purposes of verifying regulatory compliance and monitoring systems. If existing bleed air systems have not been designed in accordance with the performance requirements and recommendations of this document, a system performance evaluation is advised. If performance gaps are noted, it is recommended to determine the necessity and feasibility of a posteriori modification of the sampling system. It may not be possible to comply with the requirements of this document under all conditions with a sampling system designed only for normal operation. In abnormal conditions, the criteria or recommendations in this document still apply. But, in accident conditions, specific measurements or air sampling systems can be used. This document does not cover outdoor air sampling, radon measurements, or the monitoring of airborne radioactive substances in nuclear facility workplaces. NOTE Reference [1] deals with instruments frequently used for air monitoring in a nuclear environment. Reference [5] deals with air sampling in the workplace of nuclear installations. References [6] and [7] describe the performance characteristics of air monitors.
(Automatic translation from French)