     This document is part of your ASTM Compass® subscription.
Determining the Transport Through Geomembranes of Various
Permeants in Different Applications      Published: Jan 1990
  Format Pages Price       PDF () 20 $25   ADD TO CART
Complete Source PDF (7.1M) 20 $55   ADD TO CART       The widely
different uses of geomembranes as barriers to the transport and
migration of different gases, vapors, and liquids under
different service conditions require a determination of
permeability by test methods appropriate to the service.
Geomembranes are nonporous and homogeneous materials that
permeate gases, vapors, and liquids on a molecular scale by
dissolution in the geomembrane and diffusion through the
geomembrane. The rate of transmission of a given species,
whether as a single permeant or in mixtures, is driven by its
chemical potential or concentration gradient. Various methods to
assess the permeability of geomembranes to single component
permeants, such as individual gases, vapors, and liqui