Temperatures Between +31 F (-1 C) and -25 F (-32 C).
When using the M256-Series Chemical Agent Detector Kit at temperatures
between +31€ F (-1€ C) and -25€ F (-32€ C), the next steps will be followed:
a. Perform procedure for preparing the sampler for use in
paragraph 1a through 1g (Steps 1 through 7).
b. Place unopened sampler in a warm place for at least five minutes.
c. After five minutes, open sampler and check to see if reagent
ampoules are thawed.
If reagent ampoules are still frozen, return to warm
place and wait until they are thawed completely.
d. Perform procedure for using the sampler in Part C, paragraph 2a
through 2i (Steps 1 through 9).
e. Expose sampler outdoors for 10 minutes.
Shield sampler from direct
f. Bring sampler into a warm place.
g. Wait for any frozen reagent ampoules to thaw.
h. Perform procedure for using the sampler in Part C, paragraph 2k
through 2p (Steps 11 through 16).
Desert Conditions (High Temperature and Low Humidity).
Using heater pads, squeeze approximately half of the liquid
in Ampoule No. 3 on the Nerve Agent test spot as in Step 4
(Part C, paragraph 2d).
After about five minutes exposure of the Nerve Agent test
spot, it must be rewet. Using Heater Pads, squeeze the
remaining liquid in Ampoule No. 3 onto the Nerve Agent
Tropic Conditions (High Temperature and High Humidity).
Operation of the sampler is the same as it is for usual conditions. When
judging the results, special care must be taken with Lewisite rub marks.
Change in color may be very slight under tropic conditions. Compare with a
second rub mark before making a decision.