Collet P F, Egedorf M
Bibliographic info:
Air Infiltration Review, Vol 9, No 2, February 1988, pp 2-3, 5 figs, 1 ref.

Ten years ago the automated constant concentration tracer gas (CCTG) method was conceived at the Technological Institute, Tastrup, Denmark. This technique is now used by researchers toexamine a wide variety of air infiltration and ventilation related problems. At this juncture it would seem appropriate to summarise the development of the CCTG system and examine its use in present day research.