Current state-of-the-art surface finishing applications call
for super fine air filtration of the air supply side of paint
spray plants and down draft paint booths. The most important
criterion in this technology is to prevent paint damaging particles
15 microns and larger from migrating downstream after collection,
due to vibration in the system.
The usual air conditioning industry test methods cannot adequately
test and evaluate such performance requirements, and will
group air filters by arrestance or dust spot efficiency without
separating out those that do not perform to the 15 micron
and larger migration test criteria.
FILTRAIR is continually testing its super fine filtration
medium for surface finishing applications according to the
FILTRAIR Test Norm under vibrating conditions with clean air
side rated and counted particles larger than 15 microns to
ensure performance and safety in the latest high-tech engineered
applications.
The FILTRAIR Test Norm migration test uses a predetermined
dust consisting of non-adhesive, free running aluminum oxide
particles, which closely match the particle sizes that cause
visible paint damage (15-40 microns).
Investigations in practice and in research laboratories have
proven over the years that an air filter medium which collects
this type of fused aluminum oxide dust, without unloading
under vibration, will fulfill the efficiency requirements
for today's ever more demanding surface finishing standards.
The more efficiently these adhesive properties are built into
each fiber of the FILTRAIR CC-600 G air filter medium, the fewer
particles can be found behind the filter and the longer the
life of the filter will turn out to be.
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For measuring purposes more than 300,000 particles per M3 are
fed into the intake air stream during the FILTRAIR Test Norm
Vibration Test. Particle concentrations evident in real-life
air entry situations are approximately 1,000 times smaller for
similarly adhering, equally penetrating dust particles, as carried
out in this test.
The dust composition of this fused aluminum oxide test dust
is, by weight:
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60-80%
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15-25 microns
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99.5%
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<35 microns
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2.0%
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<10 microns
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All particles of 15 microns and larger are counted on the
clean air side of the FILTRAIR CC-600 G medium, resulting
in a migration "R" test classification.
FILTRAIR CC-600 G performs exclusively in test class R0,
showing absolutely no passing, even under heavy vibration
circumstances, of paint damaging particles 15 microns and
larger.
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FILTRAIR Test Norm migration class
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Particles/M3
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RO
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<100
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R1
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<1,000
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R2
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<10,000
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R3
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<100,000
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®FITLRAIR is a registered trade mark
of FILTRAIR b.v.
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