“…The recipes used to prepare the PEP Simulant and the CrOOH component are based on the simulant development work of Russell et al (2009a;2009b;2009c) and Smith et al (2009). The final simulant recipe of material used in the PEP was modified to remove selected chemical constituents such as barium, cadmium, copper, lead, and ruthenium from the Filtration Inerts and formate, acetate, tungstate, and metasilicate from the Specific Supernate.…”