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TM 5-6640-214-14
(12) Exercise caution when handling a 30 percent, or stronger, solution of hydrogen peroxide, H202 to prevent
its contaminating the skin. If skin is contaminated, immediately wash the area thoroughly with water.
Tetraethyl lead is a powerful poison. It can enter the body by inhalation or absorption through
the skin. Tetraethyl lead exposed to sunlight or allowed to evaporate forms triethyl lead, which
is also poisonous. Any open receptacle, container, clothing, or other object in contact with
these materials must be kept clean, or personnel may be subject to serious lead poisoning.
(13) If a strong solution of tetraethyl lead is spilled, cover the spill with dry chloride of lime, CaOC12; wait 5
minutes for reaction to be completed; then flush off with water and wash area with soap and water. If the solution is
spilled on clothing, remove clothing and discard contaminated articles. Do not attempt to wash contaminated clothing for
(14) Keep all sample containers that are in use capped or stoppered at all times except when pouring out test
portions. Always replace the same cap or stopper in the container from which it was removed.
(15) Never handle mercury with bare hands; never heat mercury in an open container; and never shake more
than 20 milliliters of mercury in a glass container.
(16) Make certain that a supply of dilute (18%X) acetic acid is available when Doctor test is being performed.
Use the dilute acetic acid freely on any part of the body, except the eyes, that may be contaminated with Doctor or
caustic solution. If Doctor solution or caustic should contaminate the eyes, immediately wash out with water and report to
(17) Never taste laboratory chemicals. Smell a chemical only when necessary and then only by wafting a small
amount of vapor with the hand toward the nose.
(18) Dispose of all unlabeled chemicals.
e. Controlling Pressure and Vacuum.
(1) Handle cylinders of compressed gas with particular care. Never allow cylinders to drop or bounce or to
come in contact with fire, sparks, or electrical circuits, as explosions may result. As compressed-gas cylinders are made
of steel, such explosions have the same destructive effect as a bomb burst. Make sure that all stored cylinders are
capped, are supported to prevent rolling or falling, and are stored away from heat.

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