Sandberg M, Sundberg J
Bibliographic info:
Air Infiltration Review, Vol 8, No 3, May 1987, p6-7, 2 figs, 1 tab, 2 refs.

Tracer gas concentrations are often analysed by using infrared spectroscopy. Infrared gas analysers have a fast response time and are accurate. Howener, this type of instrumentation is relatively expensive and can only be used for this type