Lesson 2/Learning Event 1
Sampler
The components of the sampler are shown in figure 9. The eight glass ampoules on the sampler are
protected by a molded plastic cover. The six reagent ampoules can be crushed inside the plastic,
and the reagents can then be channeled to the three test spots. The reagents are substances used to
detect chemical agents. When they are absorbed by the test spots, a color change will occur if
chemical agents are present in the air. The hinged chemical heater strip is placed over the blister
agent test spot to heat the reagent for the blister agent test.
The hinged protective strip protects the blood agent test spot and the nerve agent test spot when they
are not in use. The protective strip also is used as a handle for holding the sampler (figure 9). The
pull tab protects the lewisite detecting tablet. The lewisite tablet marking pad is used with the
lewisite tablet to detect the presence of lewisite, a blister agent.
FIGURE 9. SAMPLER.
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