BS EN 61577-2 is a European standard on radon and radon decay product measuring instruments that discuss the specific requirements for 222Rn and 220Rn measuring instruments to ensure protection against radiation hazards.
BS EN 61577-2 is the second part of a multi-part series that describes the specific requirements for instruments measuring the activity concentration of airborne 222Rn and 220Rn outdoors, in dwellings, and workplaces including underground mines.
BS EN 61577-2 applies practically to all types of electronic measuring instruments that are based on either spot or continuous measurements. The activity concentration can be measured by pumping or by diffusing the air containing 222Rn and/or 220Rn into the sensitive volume of the detection unit or at a particular moment by taking an air sample (grab sampling).
Note: BS EN 61577-2 does not apply to instruments using charcoal adsorption, electrets, or solid-state nuclear track detectors.
BS EN 61577-2 on specific requirements for 222Rn and 220Rn measuring instruments is useful for:
Radiation protection is to prevent the occurrence of harmful deterministic effects and to reduce the probability of occurrence of stochastic effects (e.g., cancer and hereditary effects). Radon is a radioactive trace gas produced by the decay of 226Ra, 223Ra, and 224Ra, respectively decay products of 238U, 235U, and 232Th which are present in the earth's crust. BS EN 61577-2 provides you with design considerations for measurements, effects caused by physical properties of 222Rn and 220Rn, design considerations for handling and maintenance, technical components, and much more.
The requirements provided by BS EN 61577-2 assist in improving the performance and quality of 222Rn and 220Rn measuring instruments and ensure reducing unnecessary radiation exposure to minimize the harmful effects of ionizing radiation.
With obedience and compliance of BS EN 61577-2, you can enhance the efficacy of the 222Rn and 220Rn measuring instruments and manufacture a standardized product.
BS EN 61577-2:2017 supersedes BS EN 61577-2:2000, which is withdrawn. BS EN 61577-2:2017 has made some technical changes compared to the previous edition BS EN 61577-2:2000. These include:
IEC 61577-2:2014