TM 5-6630-215-12
Replace:
To replace unserviceable items with serviceable like
items.
Repair:
Those maintenance operations necessary to restore an item
to serviceable condition through correction of material damage or a
specific failure.
Reagent Powder Pillows:
These are chemicals in dry powder from
usually premeasured and packaged individually to service one test.
Service:
To clean, to preserve, to charge, and to add fuel, lubri-
cants, cooling agents, and air.
(If it is desired that elements, such
as painting and lubricating, be defined separately, they may be so
listed).
Shelf Life:
Shelf life is the expected duration of time, under
specified conditions,
in which a chemical substance will react with a
predetermined result.
Standard Additions:
This is when a known value in a solution is
added to the sample being tested as a check on previous test results.
Standard Solutions:
A standard solution is a known concentration
of an element in water.
Standard Solutions may be furnished as part
of a kit or made up prior to the test.
Stoichiometric Point:
That point in a solution when chemcial equi-
valent quantities are present and balanced.
Test:
To verify serviceability and to detect electrical, mechani-
cal or chemical failure by use of test equipment or chemical evalu-
ation.
Thermoset:
This is a term used to indicate an end point in chemi-
cal manufacturing of plastics.
Its shape cannot be changed, stretched,
diluted, or softened without breakage or destruction.
Titration:
Titration is the process of determining the constituent
in a known volume of solution by the measured addition of a reacting
chemical solution of known concentration to completion of the reaction
as signal led by observation of a end point.
Turpidity:
The cloudy or opaque appearance of water due to partic-
les in suspension.
Untreated Water Sample:
The term “Untreated Water” or “Original
Water Sample” appearing in some procedures indicates that the raw
water is to be used without the addition of chemicals.
Volumetric Measurement:
The determination of the concentration of
an unknown solution by the addition of measured volumes of a chemical
solution of know concentration.
Water Samples:
This is a measured amount of raw water which is to
be analyzed.
G-3 (G-4 Blank)
