Figure 3.
Panel a shows a cylindrical canister with a compressed air line connected to a pneumatic valve and a large diameter pipe leading to an F C T filter at the base. Panel b shows an underground setup with gas supply cylinders arranged in frames and a water supply unit placed nearby, alongside a lasgit retaining lid covering the experimental area.The full canister test arrangement. (a) Schematic diagram showing the filter assembly located in the base of the canister, and (b) the addition of a pallet of 12 gas cylinders of nitrogen and a water bowser was necessary to perform the full canister test