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 inorganic nitrates that are used in improvised
explosives (e.g. ANFO). Expray™™ is used as a
pre-blast, analytical tool, and post-blast investigative tool,
to 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 proven to speed up crucial investigations.
The level of sensitivity (20 nanograms or less) surpasses
that of other currently available products. The testing process
is fast and efficient. No glass ampoules, spatulas or waiting
period 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 law enforcement and investigative personnel, Expray™
is a proven tool for increasing the accuracy, efficiency and
number of interdictions. For forensic and environmental laboratories,
it has been proven to reduce the number of samples submitted
for testing, saving both time and money.
Expray™ is sold in a kit configuration, which provides
all three aerosol sprays, collection papers, and an RDX-impregnated
verification pad (verification pad is useful for ensuring
that the spray still contains active reagents, and for demonstrating
how a positive reaction will appear) in a convenient plastic
carry case. Expray™ kits are available in both regular
size (100 tests) and mini-size (50 tests).
Expray™ provides a low "per test"
cost and poses no risk to you or the environment.
"E": Expray™-1 for
Expray™-1 is used to search for GROUP A type explosives
which include TNT, Tetryl, TNB, DNT, picric acid and its salts.
To use, wipe suspected surface with special collector test
paper. Spray with Expray™-1. If a dark brown-violet
color appears, this indicates the presence of TNT; An orange
color indicates the presence of Tetryl and other GROUP A explosives.
"X": Expray™-2 for
Expray™-2 is used to search for GROUP B type explosives
which include Dynamite, Nitroglycerine, RDX, PETN, SEMTEX,
Nitrocellulose and smokeless powder. If after spraying Expray™-1
there is no color change, spray Expray™-2. The almost
immediate appearance of a pink color change indicates the
presence of GROUP B explosives. Most plastic types of explosives
belong to this group, including C-4 and Semtex.
"I": Expray™-3 for
Expray™-3 is used to search for nitrate-based explosives
which includes ANFO (ammonium nitrate-fuel oil), commercial
and improvised explosives based on inorganic nitrates, black
powder, flash powder, gun powder, potassium chlorate and nitrate,
sulfur (powder), and ammonium nitrate (both fertilizer and
aluminum). If there is still no reaction after using the Expray™
cans 1 and 2, but presence of explosives is still suspected,
spray the same paper with Expray™-3. A pink reaction
indicates the presence of nitrates, which could be part of
an improvised explosive.
Plus is our latest Explosive Detection and Identification
Kit. Drop-Ex is actually an extension of the popular DROP-EX
Kit and detects the widest possible range of explosive types,
due to its ability to detect the additional explosive categories
for improvised explosives: Chlorate and Peroxide-based explosives.
Peroxide-based explosives are powerful explosive substances
that can be prepared from several over the counter materials.
This well-known explosive type is currently in use by terrorist
groups. This explosive material is usually known by its abbreviation
TATP (Tri Acetone Tri Peroxide).
This system is based on the same reagents in Expray™,
but in a dropper bottles, for ease of use during field and
laboratory investigation. The first sample can be tested using
Drop-Ex 1, 2 and 3. The test for chlorates, bromides and the
peroxide based explosives must be a separate test using Drop-Ex
A and Drop-Ex B.
The detection range of the
Drop-Ex # 1 for Group A
(Nitroaromatics) - this type of explosives includes TNT, Tetryl,
TNB, DNT, picric acid and its salts.
Drop-Ex # 2 for Group B
(Nitrate esters and nitramines) - this type of explosives
includes Dynamite, Nitroglycerine, RDX, C4, PETN, Semtex H,
Nitrocellulose and smokeless powder. NOTE: Most plastic types
of explosives belong to this group.
Drop-Ex # 3 for Inorganic nitrates
- the nitrates based explosives include ANFO (ammonium
nitrate-fuel oil), commercial and improvised explosives based
on inorganic nitrates, black powder, flash powder, gun powder,
potassium nitrate, and ammonium nitrate.
Drop-Ex A for Chlorates and Bromates
– this type of explosives includes potassium
chlorate and sodium chlorate. Drop-Ex # A is used for detection
of chlorates and bromates and can be used by itself.
Drop-Ex B for Peroxide-based
explosive compounds – includes TATP (Tri Acetone
Tri Peroxide) and HMTD Drop-Ex # B requires that Drop-Ex #
A be used first. If you are not sure what type of explosive
you are testing for, you will need two samples.