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What kind of sampling system are needed for the measurement?


We recommend Teflon tubes or SUS tubes for measuring low dew points over -40deg C. In the case of measuring high dew points, since condensation is highly influential to the accuracy of the measurement, temperature control for the pluming will be required (e.g. heating up the sample plumbing, etc…) . Silicon and vinyl chloride are not suitable materials since these tubes tend to absorb and permeate moisture.