scope:

Is applicable to equipment intended for simultaneous. delayed or discrete sequential measurement of radioactive noble gas in gaseous effluents discharged into the environment. It is applicable to radioactive noble gas effluent monitors intended to fulful the following functions: - the measurements of the volume activity of radioactive gases in the gaseous effluents at the discharge point and its variation with time; - the actuation of an alarm when a predetermined volumic activity or a predetermined total released radioactivity is exceeded; - the determination of the gas activity discharged over a given period and/or information on the composition of a mixture of different gases in the discharge.