BS EN 60761-4 considers both the use of iodine collection media such as activated charcoal and the direct measurement of iodine in stacks or ventilation ducts.
The object of BS EN 60761-4 is to lay down specific standard requirements, including technical characteristics and general test conditions, and to give examples of acceptable methods for iodine monitors as defined in clause 4.
BS EN 60761-4 is applicable to equipment intended for the simultaneous, delayed or discrete sequential measurement of radioactive iodine in all forms. When the effluent is sampled for measurement, iodine bound on aerosols is generally collected on a prefilter which should be analyzed separately in a laboratory to provide a complete measurement.
BS EN 60761-4 is applicable to equipment designed to fulfill the following functions:
BS EN 60761-4 on Equipment for continuous monitoring radioactivity in gaseous effluentsis relevant to:
This equipment is intended for measurement over a wide range of activity in the presence of other radionuclides in the gaseous effluent, including naturally occurring radioactive nuclides. Discrimination against other radionuclides can be important in measuring low levels of radioactive iodine.
BS EN 60761-4 provides you with the procedure and necessary equipment for the continuous monitoring of radioactivity in gaseous effluents and provides specific requirements for iodine monitors. BS EN 60761-4 assists in standardizing a procedure for monitoring the radioactivity to achieve comparability of data.
With compliance and obedience to guidance under BS EN 60761-4, you can accurately estimate radioactive emissions using iodine monitors so that it is safe for use.
EN 60761-4:2004
IEC 60761-4:2002