This afternoon, the re-entry of HAM-10 was completed for two purposes: to re-sample the "hot spot" on the floor and to remove the dust barrier that was left in for extra protection of the chamber while BSC-4 was being cleaned. The "hot spot" was FTIR-ed prior to any other activity in the chamber. Then the dust barrier was removed after being wiped down. The nozzle area that held the barrier was also cleaned up. On examination, the side of the barrier toward BSC-4 did not show any visual evidence of extraneous particulate accumulation nor did a wipe turn up anything worrisome. This supports other evidence that the in-chamber cleaning process does not allow the liberated oxide material to travel far. The "hot spot" was then wiped down and re-sampled. The chamber was exited and the door blank was reinstalled.