Testing Procedures for H, NA, and L Vapor Agents

TM 3-6910-227-10

b. Hold the M256 kit with one hand at the bottom

You can run more than one test using one

case with the top case fastener facing away from you.

test bottle without introducing more simulant.

c. With the other hand, grasp the loose end of the

If necessary additional simulant can be added

to continue test without washing test bottle.

top case fastener. Using one continuous motion, pull

upward on the top case fastener which separates the

a. Perform the procedure of paragraphs 2-4 and

hook and pile fastener tape. Continue to pull up on the

2-5.

top case fastener until the top case stops its upward

b. Pull off and discard the pull tab (marked 1) to

motion.

d. Pull the top case fastener away from you until

expose the lewisite detecting tablet (fig. 2-2).

c. Rub the top half of white paper side of lewisite

the top case is completely open.

tablet rubbing tab (marked 2) on lewisite detecting tablet.

e. Remove a sampler-detector from M256 kit.

Repeat rubbing until mark is visible.

Read the instructions on both sides of protective bag

d. Hold the sampler-detector in the vertical position

before proceeding.

so that the ampoules are down.

f. Check the discard date on protective bag to.

e. Finger-crush the two reagent ampoules (marked

make sure the discard date has not expired. If discard

3) one on each side of the center pockets. Do not crush

date has expired, discard the sampler-detector. Obtain

the two center ampoules in the center pocket (marked

another sampler-detector.

3). The ampoules to crush are indicated by asterisks on

g. Carefully tear open protective bag along the tear

figure 2-2.

line marked with arrows.

h. Remove sampler-detector from protective bag.

f. Rotate the sampler-detector until the test spots

are in a down position. Force the liquid from the two

Hold sampler-detector by hinged protective strip (fig. 2-2)

crushed ampoules through the formed channels to the

in the closed position.

test spots. Doing this makes sure that the test spots get

wet.

CAUTION

g. Check that hinged protective strip that is over the

Be careful not to touch the test spots.

test spots. Hold the sampler-detector horizontal with left

Touching the test spots could result in a

thumb over the center test spot.

false test.

h. Swing the hinged heater assembly away from

the blister agent test spot.

i. Swing the hinged heater assembly away from test

spots. Discard two loose protective strips under the

WARNING

hinged heater assembly.

Wear your protective mask when operating the

j. Thoroughly inspect the sampler-detector for

sampler-detector. The heater ampoules, when

damage; such as, missing components, broken or empty

broken, produce hot vapors which may cause

ampoules, obstructed formed channels, or cracked

injury to your eyes. Hold the sampler-detector at

plastic pockets. If any of these has occurred, discard

arms length, down, and away from your body

sampler-detector and repeat this preparation procedure

when breaking heater ampoules to prevent hot

with a new sampler-detector.

k. Swing the hinged heater assembly back over the

vapors from reaching your eyes.

test spots.

CAUTION

2-6. Testing Procedures for H, NA, and L Vapor Agents

Break only one green ampoule at a time

because, if two ampoules are broken, the blister

test cannot be completed.

NOTES

The following procedure is intended to

i. Finger-crush one of the two green ampoules

instruct the user by providing him with an

(marked 4).

Immediately swing the hinged heater

unknown simulant on which to perform all the

assembly over the blister agent test spot. Vent vapor

tests on one sampler-detector. If desired,

away from the operator's body. Leave the hinged heater

the instructor may elect to demonstrate one

assembly in place for 2 minutes.

test at a time. He should, therefore, prepare

j. Swing the hinged heater assembly (after 2

only the appropriate test spot by following the

minutes has passed) and the hinged protective strip

applicable steps for that particular test.

away from the test spots.

Change 1 2-3