Section 66 Wet Bath Simulator

• Library: DWI Experts and the Science of Chemical Tests 2014

Calibration is never performed using an internal standard. The simulator is just a jar with a lid, thermometer, and stirring mechanism, and is partially filled with a liquid of known alcohol concentration. The liquid in the jar is heated to 34°C +/- 0.2, and the vapor in the headspace in the sealed jar is pumped into the machine and analyzed. The reading in the machine must match the vapor concentration of the solution, as determined by Henry’s...