How sensitive is the kit?
Laboratory tests found the kit can detect particles as small as 20 nanograms. Such small particles can be found on hands, on working surfaces (tables, desk) and on the outer side of envelopes or parcels in which explosives were sent. Even after an explosion, unexploded particles can be found in the area, which can give an immediate clue about the nature of the explosion. Refer to the links provide to see published test results.
