9.
MATCH a list of containers and chemicals with the proper method of storage for each.
10.
STATE three ways photo lab personnel could become poisoned when working with
photographic chemicals.
11.
MATCH the chemical classification with the potential hazard of each class.
CREDIT HOURS...........................................................................................
hrs
MATERIAL REQUIRED..............................................................................None
SECTION I
1-1.
WHY CHEMICALS SHOULD BE STORED IN AIRTIGHT CONTAINERS.
a. If chemicals are exposed to air for any great length of time, they will deteriorate and be of no
further use. To prevent this, they should be kept in airtight containers.
b. There are three ways chemicals deteriorate. Either they give off moisture to the air, termed
efflorescence, or they absorb moisture from the air, called hydroscopic or deliquescence, or they combine
with oxygen, known as oxidation. The following six frames of programmed text, will help to explain the
storage of chemicals.
(1) If chemicals are exposed to air for
any great length of time, they will
deteriorate and be of no further
use.
Chemicals should not be ___________
to air for any great length of
time.
exposed
(2) Chemicals should be stored in
airtight storage containers to pre-
vent their deterioration. Chemicals
exposed to air will _______________.
deteriorate
(3) (Chemicals may deteriorate for one
of the following reasons:
4
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