Expray is a unique, aerosol-based field test kit for the detection and identification of Group A explosives (e.g. TNT, TNB, etc.), Group B explosives (e.g. Semtex H, RDX, C4, etc.) and compounds containing nitrates that are used in imporovised explosives (e.g. ANFO). Expray is commonly used as a pre-blast, analytical tool, post-blast investigative tool, and screen against potential terrorist elements and as a technical evaluation test in soil remediation on hazardous material "clean-up" sites. When used as a post-blast investigative tool, the product is field proven to speed up crucial investigations.
The Expray testing process consists of three separate test reagents;
Expray #2 (Model #1520) for Group B explosives
Expray #3 (Model #1530) for improvised explosives containing nitrates.
Expray is chemically cumulative. First wipe the suspected surface with the collection paper (Model #530). Spray the collection paper with Expray #1 and observe for a dark violet to brown color reaction indicating the presence of Group A explosives. Next, Spray the same collection paper with Expray #2 and observe for a pink color reaction indicating the presence of Group B explosives. Finally, spray the same collection paper with Expray #3 and observe for a crimson pink color reaction indicating the presence of nitrate compounds. It is recommended that all three Expray cans be sprayed during a testing process even if a positive reaction is observed in either step #1 or #2. If the environmental surface or package being tested is light in color, the collection paper my be omitted.
The level of sensitivity surpasses that of other currently available products. Sensitivity - less than 1 microgram. The testing process is fast and efficient. No glass ampules, spatulas or waiting time required. Results appear in seconds. No additional tools or equipment required. The identification / detection process requires no special training and testing can be performed "on the spot".
For both enforcement and investigative personnel, Expray is a proven tool for increasing the accuracy, efficiency and number of interdictions. For forensic laboratories, it has proven to reduce the number of false samples submitted for testing, saving both time and money.
Other Erez Forensic Products:
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