Inside this report the reader can find explanation regarding analysis, concentration measurement, precision, and measurement period. The report contains information such as the measurement period, air infiltration measurement, error, and measurement.
There are many info regarding measurement system, measurement techniques, infiltration measurement techniques, and concentration are explained in the report. These are some excerpt from this report:
The basic principle involved is that of conservation of mass (of tracer gas) as expressed in the continuity equation; by monitoring the injection and concentration of the tracer, one can infer the exchange of air. Although there is only one continuity equation, there are many different experimental injection strategies and analytical approaches. These different techniques may result in different estimates of infiltration due to uncertainties and biases of the procedures.
Furthermore, this report tells you more around injection, equation, infiltration, and infiltration measurement.