• ± 2% Production Tolerance.
• Close production tolerance permits replacement and interchange of orifices without loss of acceptable accuracy.
• Save a considerable sum. Purchase only one cup with all six orifices instead of six complete cups.
• New precision "Snap-In" "Snap-Out" orifices make it easy to change cup orifice size.
• All Gardco Ford cups are alodine finished machined aluminum with removable brass orifice.
• Six orifice sizes: No. 0,1,2,3,4,5.
• Series range extends from 2 to 1413 centistokes.
• New "seconds to centistokes" conversion table furnished with every cup.
• Calibration traceable to the U.S. National Institute of Standards and Technology.
• Qualifies under MIL STD 45662A. Conforms to ISO 9000 when ordered with calibration certification.
• Cup No.5 compatible to requirements of Federal specification MMM-A-121 for adhesives.
• Viscosity wall chart available describing our full line of 45 Gardco viscometers (referencing item VI-VCC-4).

• The flow formula for each cup in the series has been selected to provide results which are close as possible to an average of other similar Ford Cups.
  
• The flow formula as applied to the physical dimensions of each cup in the series has been confirmed with the use of standard oils traceable to the National Institute of Standards and Technology and other liquids from essentially zero viscosity to a viscosity proportional to 150 seconds flow time.
  
• Cup dimensions influencing flow time conformed to those specified in ASTM D 1200 except for very minor adjustment of orifice diameter.
  
• Weight of the cup has been reduced 20% to minimize influence of cup temperature on the temperature of the material being measured.
  
• The top interior of the orifice has been shaped to provide a sharper break in the stream as the cup empties. The design also provides for a better definable orifice length with respect to theory.
  
• The taper fit of the orifice eliminates hard to clean areas.
  
• The orifice is readily removable with furnished wood dowel and inserted without the use of tools.
  
• The design of the bottom of the cup gives increased protection to the orifice.
  
• The drip ring has been deepened to accommodate a greater amount of material.
  
• A specially designed tripod support is available to enhance the use of the cup.

The dimensions of the Gardco Standard Cup are shown in Figure 5 below. The internal dimensions conform to those specified in the ASTM Method D-1200 except for the diameter of the orifice. Even here there is close agreement, but the diameter of the orifice is adjusted to bring the cup into conformity with the flow formula.

Most of the Ford cups produced by others to date have an external cup diameter that extends below the level of the orifice. This results in a large amount of metal adjacent to the orifice which can adversely affect the accuracy of the reading if the cup and material being measured are not at the same temperature at the time the measurement is started. Most of this mass of metal has been removed in the new design.

The bottom of the cup is designed to extend below the orifice. This design not only provides adequate stability for the cup when resting upright on a surface, but it also protects the orifice from damage. This protection is also closer to the orifice than in other designs.

• Compatible with ASTM D 1200
• For use in field or laboratory.
• Red Anodized handle for easy identification.
• ±3% Production Tolerance for cup #3
  ±2% Production Tolerance for cup #4
  ±3% Production Tolerance for cup #5
• All Gardco Ford cups are alodine finished machined aluminum with removable brass orifice.
• Orifice included.
• Cup #3 range extends from 29 to 251 centistokes.
  Cup #4 range extends from 34 to 441 centistokes.
  Cup #5 range extends from 77 to 1413 centistokes
• Seconds to centistokes conversion table furnished with every cup.
• Calibration traceable to the U.S. National Institute of Standards and Technology.
• Calibration Certification qualifies under ANSI/NCSL Z540-1 or MIL-STD-45662A as applicable
• Conforms to ISO 9000 when ordered with option
• Certificate of calibration
• Mathematical formulas developed for the Gardco Standard #3, #4 & #5 Ford Dip Viscosity Cups, relating efflux time in seconds to viscosity in centistokes, defines cup flow characteristics with respect to standard oils traceable to U.S. National Institute of Standards and Technology. The resulting formulas have been solved for each tenth of a second within the recommended range. A table with this information as well as the cup formula is furnished free with each cup.

• Standard oils, traceable to the U.S. National Institute of Standards and Technology are available for verfication of cup calibration.

The Gardco Standard Ford Dip Cup has all the advantages listed for the Standard series except it does not have a overflow well at the top of the cup and a red anodized handle is attached for support.

The bottom of the cup is designed to extend below the orifice This design not only provides adequate stability for the cup when resting upright on a surface, but also protects the orifice from damage.

The design of the bottom of the cup, as can be seen from the drawing, causes all material draining from the outside of the cup to flow away from the orifice and not influence the rate of flow from the orifice.

Close production  tolerance permits replacement of the precision "pop-in, pop-out" orifice without loss of accuracy and without tools.

To remove the orifice, simply place the cup upside down on a solid cushioned surface.  Place the wood dowel rod furnished with the cup against the orifice and tap the dowel rod lightly with a heavy object such as a paper weight.  To insert the orifice, place the cup right side up. 

Carefully insert the orifice in place.  Place the dowel rod into the spherical section of the orifice and tap the dowel rod with a heavy object.

Orifice interchange is not applicable to certified cups. Production tolerance on the Standard cup, the Standard Dip cup and the orifice whether it be #3, #4 or #5 is sufficiently close to permit interchange of orifices in either cup or between cups.

For convenience and for best possible results, however, it is recommended that such interchanges be held to a minimum.

Orifice interchange is not applicable to certified cups. Production tolerance on the Standard cup, the Standard Dip cup and the orifice whether it be #3, #4 or #5 is sufficiently close to permit interchange of orifices in either cup or between cups.

For convenience and for best possible results, however, it is recommended that such interchanges be held to a minimum.

• Capacity is 50% of Standard Ford Viscosity Cup.
• ±4% Production tolerance
• Easily Removable "Snap-in, Snap-out" orifice can save user the cost of five cups - buy one cup and any of six "snap-in" orifices.
• All Gardco Ford cups are alodine finished machined aluminum with removable brass orifice.
• Six orifices now available No. 0, 1, 2, 3, 4, and 5
• Compatible to ASTM Specification D 1200
• For use in field and laboratory
• 2 to 1400 centistoke range
• The Gardco series of six mini ford dip cups are produced with easily removable orifices of the Gardco "snap-in, snap-out" type. Cup and orifice production tolerance permits replacement or interchange of orifices without loss of acceptable cup accuracy.
• Seconds to centistokes conversion table furnished with every cup.
• Directly related to Standard Ford Cup series designed, standardized and produced by the Paul N. Gardner Company, Inc.
• Calibration traceable to the U.S. National Institute of Standards & Technology.
• Cup qualifies under MIL STD 45662A & conforms to ISO 9000 when ordered with calibration certification.
• Cup No. 5 compatible to requirements of federal specification MMM-A-121 for adhesives.
• Standard oils, traceable to the U.S. National Institute of Standards & Technology are now available for conforming the calibration of the cups.

Time in seconds obtained with the dip series is just one half that obtained with the standard series. Simply multiply the seconds obtained by two and the results are directly converted to centistokes by the same theory presented for the standard series. This relationship is obtained by producing the dip series with an internal vertical cross section equal to just one half of the standard series and adjusting the cup height to obtain desired results.

The orifice series used in the dip cup is identical to the series used in the standard cup.

The design of the bottom of the cup causes all material draining from the outside of the cup to flow away from the orifice and not to influence the rate of flow from the orifice.

Minimum time for the dip series is one half of that stated earlier for the standard series, or ten seconds, and cup sensitivity is one half of that shown earlier for the Gardco Standard Ford Cup. There are six cups in the series covering seconds and centistoke range as follows: