ISO 20041-1:2022 PDF

Scope: This document presents the methods and provisions for sampling tritium and carbon-14 in the gaseous effluents generated by nuclear facilities during operation and decommissioning. Specifically included are sample withdrawal location, extraction, transport flow measurement, and collection for later analysis. This document doesn’t address to real time measurements of tritium activity and carbon-14 activity in the effluent air of stacks and ducts. Information about real time measurements can be found in Sample processing, analysis and calculations of tritium and carbon-14 emissions will be addressed in future parts of ISO 20041.

ISO 20041-1:2022 Referenced Document

ISO 10780:1994 Stationary source emissions - Measurement of velocity and volume flowrate of gas streams in ducts
ISO 2889 Sampling airborne radioactive materials from the stacks and ducts of nuclear facilities*， 2023-06-01 Update
ISO 5667-3 Water quality*， 2024-02-01 Update

2022 ISO 20041-1:2022 Tritium and carbon-14 activity in gaseous effluents and gas discharges of nuclear installations — Part 1: Sampling of tritium and carbon-14