Clear & Bright
Although recognised
as being very
subjective, the
Clear and Bright
test is still used
to determine
particulate
and water
contamination
levels in fuel.
Problems with thismethod are the visual
variations from one person
to the next. Also the human eye can
only see objects bigger than 30-40 μ(c). Anything above that
is
really of no concern as these relatively large particles are easily
removed by current filtration methods.
Gravimetric Millipore
More widely used across the
industry and considered to be much more reliable. But is it? As
with all the current methods, we have to ask are we looking at
those parts of the contamination that cause damage in our fuel
systems? No! Gravimetric Millipore filters out all particles greater
than 0.8μ. Large particles of dirt impact greatly on the results
but,
as with C&B, they have no real importance. It is the small particles
that we cannot see and the concentration of those particles that
are of real concern, especially when taking into consideration the
critical tolerance in today's aero derived Gas turbines.
ACM20 data
sheet
Icount data
sheet
Fuel Monitoring Equipment ![]() Icount PD - Online Particle Detecor
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