TM 3-6665-320-10
WARNING
NOTE
The heater produces hot vapors and
The student can compare the BLOOD
is hot to the touch. Keep away from
AGENT
and
LEWISITE
tests
face and bare skin after the
immediately after the prescribed
ampoules are broken.
time. The BLISTER AGENTS (H and
CX) develop color immediately after
all the ampoules are broken. The
(11) Being sure NOT TO use pads, finger-
NERVE AGENT test requires a
crush one of the two green ampoules (marked 4).
waiting period of approximately two
Immediately swing the hinged heater assembly over the
minutes.
test spot. Vent vapor away from operator's body.
Leave the hinged heater assembly in place for 2
minutes.
Disregard small blue areas under the
plastic rim of the nerve agent spot.
(12) Swing the hinged heater assembly (after
two minutes have passed) and hinged protective strip
Nerve spot may become difficult to
away from test spots.
wet with solutions as the sampler-
(13) Hold the sampler-detector by the hinged
detectors age. Work solutions to
protective strip.
spot carefully.
(14) Expose test spots to air (while shielding
from direct sunlight) for 10 minutes.
At low concentrations, a change in
(15) Finger-crush the second green ampoule
the lewisite tablet rub mark may be
(marked 4). Swing the hinged heater assembly over the
very slight. Compare with a second
test spot. Vent vapor away from operator's body. Leave
mark before making judgment.
hinged heater assembly in place for approximately 1
minute.
Yellow and orange sometimes occur
(16) Swing hinged heater assembly (after
on blood spot when no agent is
approximately 1 minute has passed) away from the test
present. Pink or blue color must be
spot.
present for a positive test.
(17) Hold sampler-detector with arrow pointing
down.
Any combination of colors, or
"rainbow effect," which includes
WARNING
pink or blue should be considered as
Be careful when breaking the glass
a positive blood agent test.
ampoules. Small pieces of glass
may cut through the plastic and
b. Operation Under Unusual Conditions (Climate
could cut gloves or hands.
Extremes).
(1) Temperatures between + 50F (10 ) and
C
(18) Finger-crush the two remaining ampoules
+ 32 (0 ). Wait 5 minutes before making color
F
C
(marked 5) with pads. Force the liquid from the two
comparison when temperature is between + 50 (10 )
F
C
ampoules through the formed channels to the test spots
and + 32 (0 ).
F
C
to ensure wetting.
(19) Rerub the lewisite detecting tablet on the
WARNING
bottom half of the rubbing tab next to the first rub mark.
Do not heat sampler-detector over
(20) Immediately turn the sampler-detector
flame or high heat source, such as
over to determine safe or danger conditions. Observe
engine exhaust, to thaw the
for a difference in color between the two rub marks on
contents. It may explode or ignite.
the lewisite tablet rubbing tab. Color comparisons can
also be made by the operator using those shown on the
(2) Temperatures between - 25 (- 32 )
F
C
operational instruction cards.
and + 32 F (0 ).
C
Perform the following when
temperature is between - 25 (- 32 ) and + 32
F
C
F
(0 ):
C
2-4
