Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Lowest mass detected in all replicate measurements for each explosive material for swab spray and paper spray for a 30 s acquisition.
| Lowest detected mass (pg) |
||
|---|---|---|
| Paper Spray | Swab Spray | |
| TNT | 25 | 25 |
| RDX | 25 | 25 |
| HMX | 25 | 25 |
| PETN | 25 | 25 |
| Tetryl | 25 | 25 |
| NG | 25 | 50 |
| PA | 25 | 25 |
