Educational screening of the maximum allowable condensable-contaminant concentration in a gas feeding a fixed adsorbent bed (mercury guard bed, molecular sieve, catalyst guard) before capillary condensation floods the sorbent pores. USE WHEN: a task needs a public, screening-level contaminant ppmv limit from the Kelvin equation and a sorbent pore radius, or needs to explain why a bed degrades with no free liquid at the inlet.
