This method
is intended for use in
the determination of water in
bituminous products which
would include asphaltic
residua used as exposed gear
lubricants. A sample of the
product in question is diluted
with a solvent and
distilled the water
being caught in a graduated trap. Water in gear oils should only be present
as a contaminant. A qualitative test
for moisture in gear
lubricants consists of holding
a sample in
a beaker or can on
a hot
plate and when
the temperature reaches
about 212 degree F,
observing if foaming
takes place.
Tests for Other Characteristics of Lubricating
Oils. Before lubricating oils
are selected for use
in compounding specific
types of gear lubricants, other
characteristics may need to
be considered. For example,
compatibility with the other ingredients of a composition is very
important. This and other qualities will be mentioned as need arises.
