The present standard is applicable to equipment for measuring and monitoring airborne tritium. Such equipment includes:
— meters for airborne tritium;
— monitors for airborne tritium.
The radiation measuring assemblies here indicated as "meters" and "monitors" are defined in Amendment No. 1 to IEC Publication 181: Index of Electrical Measuring Apparatus Used in Connection with Ionizing Radiation, as follows:*
1.1 Radiation meter (radiation measuring assembly)
An assembly designed to measure quantities concerned with ionizing radiation (activity, exposure r?te, etc.) and including one or more radiation detectors and associated sub-assemblies or basic function units.
1.2 (Radiation) monitor
A radiation meter also provided with means for giving a warning, usually visual or audible, that the quantity connected with ionizing radiation exceeds some predetermined value or that the measured value is not within some predetermined limits.