Gunpowder particle test kit

Details Gunpowder particle test kit Gunpowder particle test kit

2003-12-04

2008-08-12

Warden, Jill (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Sample mechanical transport means in or for automated...

C422S051000, C422S068100, C436S110000, C436S165000, C436S808000, C436S810000

Reexamination Certificate

active

07410612

ABSTRACT:
A gunpowder particle test kit for determining gunpowder residue includes a transparent sleeve having a closed end and an open folded end sealed with a clip forming a sealed cavity carrying a test strip and a crushable ampoule carrying a diphenylamine solution. The test strip has an adhesive area on a front surface. An opaque label is provided on a rear surface on the sleeve opposite the adhesive area. In use, the clip is removed to open the cavity, the test strip removed and applied to possible residue areas on a subject. The strip is returned to the cavity; the clip reapplied to seal the cavity. Thereafter, the ampoule is crushed to release the solution, which develops a distinctive coloration observable against the label to indicate the presence of possible gunpowder residue.

REFERENCES:
patent: 5709838 (1998-01-01), Porter et al.
patent: 6613576 (2003-09-01), Rodacy et al.

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