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~ - « a ” , S FD-302a (Rev. 10-6-95) oD ON CO ~ 279A-WPF-222936-USAMRIID Continuation of FD-302 of [oo ,On O1 / 28/2005 » Page 2 ch in the hotside, but after October 2001, most of thel__| were stripped away to conduct testing on unknown mail stated that on many € present during the challenges, but not during all of these experiments. For challenge experiments, [___|ana otherL__| a begin preparation for testing the week prior to the actual start of testing by decontaminating the work areas. Normal decontamination procedures involved the use of paraformaldahyde to decontaminate all work areas. At the start of testing, received all samples and animals into the hot area and transported them to the test area. For challenge experiments, agent samples were placed into all-glass impingers (AGI) and aerosolized into the test animal cages. Co would regularly collect air samples for later plating, to determine the quantity of agent the animals were exposed to during the testin remembers using anti-foam in aerosol challenges, but could not remember its brand-name or whether it contained silicone. Anti-foam was added to the AGI to keep materials inside the nebulizer from bubbling over. [J couta not provide any information concerning _ added materials since solutions for challenges were pre-mixed before being provided to the testers. ss mnowledge of any substitutes for anti- Oam used in ese aerosol challenges. conducted tests for BRUCE IVINS, employment at USAMRIID, bu ing anti-foam or olive oil to their . as already gone from USAMRIID when started working there. believed there was spore materials left over