DANSK DS/ISO 16000-8 PDF

This International Standard describes the use of single tracer gas for determining the local mean age of air as an indicator of ventilation conditions in a building. The procedures include concentration decay and homogeneous constant emission.
The described methods are intended for air quality studies, for example to determine whether poor air quality is caused by high emissions or inadequate ventilation. In principle, the methods can be applied to all indoor spaces, regardless of the ventilation principle and the state of mixing of air between zones in the measurement object. The prevailing ventilation conditions need not be disturbed by the measurement.
NOTE: This part of ISO 16000 does not address the details of the analytical methods for tracer gases. The availability of such analysis services should be checked before planning actual field measurements.