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GARDCO STANDARD FORD VISCOSITY
CUPS
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VISCOSITY MEASUREMENT
BY
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A SERIES OF SIX GARDCO
STANDARD FORD CUPS
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IMPORTANT FEATURES
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MEETS AND EXCEEDS ASTM D
1200
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· +/-2%
Production Tolerance
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· Close production
tolerance permits replacement and interchange of orifices without loss of
acceptable accuracy.
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· Save a
considerable sum. Purchase only one cup with all six orifices instead of six
complete cups.
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· New
precision “Snap-In” “Snap-Out” orifices make it easy to change cup orifice
size.
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· All Gardco Ford cups are alodine
finished machined aluminum with removable brass orifice.
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· Six
orifice sizes: No. 0, 1, 2, 3, 4, 5.
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· Series
range extends from 2 to 1413 centistokes.
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· New
seconds to centistokes conversion table furnished with every cup.
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· Calibration
traceable to the U.S. National Institute of Standards and Technology.
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· Qualifies
under ANSI/NCSL Z540-1 or ISO/IEC 17025:2005, ISO 9001:2008 as applicable.
Conforms to ISO 9000 when ordered with calibration certification.
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· Cup No. 5
compatible to requirements of Federal specification MMM-A-121 for Adhesives.
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Additional Features
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· The flow formula for each cup
in the series has been selected to provide results which are as close as
possible to an
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average
of other similar Ford Cups.
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·
The flow formula as applied to the
physical dimensions of each cup in the series has been confirmed with the use
of
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standard oils
traceable to National Institute of Standards and Technology and other liquids
from essentially zero viscosity
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to a viscosity
proportional to 150 seconds flow time.
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·
Cup dimensions influencing flow time conform to
those specified in ASTM D-1200 except for very minor adjustment of
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orifice
diameter.
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· Weight of the cup
has been reduced by 20% to minimize influence of cup temperature on the
temperature of the
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material
being measured.
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· The top interior of the orifice
has been shaped to provide a sharper break in the stream as the cup empties.
This design
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also provides
for a better definable orifice length with respect to theory.
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· The taper fit of the
orifice eliminates hard to clean areas.
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· The orifice is readily
removable with furnished wood dowel and inserted without the use of tools.
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· The design of the
bottom of the cup gives increased protection to the orifice.
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· The drip ring has been deepened
to accommodate a greater amount of material.
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· A specially designed
tripod support is available to enhance the use of the cup.
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Care of Cup
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The
GARDCO viscosity cups are precision instruments. To maintain them in their
initial condition and calibration, they should
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be cleaned
following each use with a suitable solvent and a soft brush or lint-free
cloth, Particular care should be used in
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cleaning the orifice to avoid leaving
deposits or scratches on the internal surfaces. Nylon fishing line has been
found to be
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suitable. It is good practice to retain
a pint of standard calibration oil which can be used to periodically insure
that the
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cup maintains initial calibration.
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