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• <br /> <br />HUMIDITY CELL KINETIC TEST PROCEDURE <br />(WASTE ROCK EXAMPLE) <br />- SAMPLE <br />• 12008 at minus 6.3mm (1/4") <br />• Plsce into 6amidity cell & saturate with DI H,O <br />- SEVEN DAY CYCLE <br />• Dry air cycle <br />Pump dry air up through sample for 3 days <br />• Humid air cycle <br />With 6umidi(ier (30°C, air sparge), pump humid <br />air up througb sample for 3 days <br />• Saturation cycle (1 day) <br />Flood sample with DI H,O <br />Soak for 1 hour <br />Drain to obtain eYlract <br />- EXTRACT ANALYSES <br />• pH, acidity, SO„ EM[, conductivity, alkalinity, Fe", Fe" <br />• Metal as required (As, Hg, Se, Pb, Cd, Cr, others) <br />- TERM <br />• Variable depending on weekly results <br />• Initially, 5-10 weeks <br />• Currently, 20 or more weeks <br />m <br />N <br />u <br />P <br />u <br />u <br />a <br />m <br />N <br />u <br />m <br />Y <br />a <br />P <br />u <br /> <br />.., .. <br />