Mobile calibration system as transfer standard to determine the correction values for losses along the sampling path.
A gas bag is used to add the known span gas concentration at the sampling of the measuring station. The analysis system can be calibrated to compensate for the losses due to sampling.
The modular calibration system MK10 is used to compound span gas. The use of a span gas dampener is recommended to approximate the span gas with the real conditions of a sampling with ambient air.