Gardco Standard Ford Viscosity Cups

Article No. 13588

Ford Standard Cup #0

All 3 types of the Gardco Ford Cups (Ford Standard, Ford Dip, Ford Mini Dip) are alodine finished machined aluminum with easily removable "Snap-in, Snap-out" orifices. Close production tolerance of cup and orifice permits replacement or interchange of orifices without loss of acceptable accuracy. They have a Certificate of Calibration traceable to the U.S. National Institute of Standards and Technolog

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Cup Model

Cup No.

excl. taxes & shipping cost

Features

Ford Standard Ford Cups

Orifice sizes: No. 0, 1, 2, 3, 4, 5
The flow formula for each cup in the series has been selected to provide results, which are as 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.
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 cup bottom gives increased protection to orifice.
The drip ring has been deepened to accommodate a greater amount of material
± 2% Production Tolerance
Cup No. 5 compatible to requirements of federal specification MMM-A-121 for adhesives
Qualify under MIL STD 45662A & conform to ISO 9000 when ordered with calibration certification.
A specially designed tripod support is available to enhance the use of the cup.
Weight of the cup has been reduced 20% to minimize influence of cup temp on the temp of the material being measured.

Ford Standard Dip Cups (with No. 3, 4, and 5 orifices)

Mathematical formulas developed for the Gardco Standard No. 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.
Red Anodized handle for easy identification
Great for lab and field use
Compatible with ASTM D1200
±3% Production Tolerance for cup No. 3, ±2% Production Tolerance for cup No. 4, ±3% Production Tolerance for cup No. 5
Cup No. 3 range extends from 29 to 251 centistokes, Cup No. 4 range extends from 34 to 441 centistokes, Cup No. 5 range extends from 77 to 1413 centistokes

This cup has the same capacity as the Standard Laboratory type Ford Viscosity Cup designed for use with a stand. However, this new cup is fitted with a red anodized aluminum handle and the drip ring at the top of the cup has been eliminated.

Ford Mini Dip Cups

Orifice sizes: No. 0, 1, 2, 3, 4, 5
For Viscosity Measurements of Very Thin Paints, Inks, Solvents, Lacquers, Adhesives, and Coating Materials of All Kinds
Capacity is 50% of Standard Ford Viscosity Cup
Great for lab and field use
±4% Production tolerance
2 to 1400 centistoke range
Compatible with ASTM D1200
Mini Dip Cup qualifies under ANSI/NCSL Z540 or ISO/IEC 17025, ISO 9001 as applicable.
Qualify under MIL STD 45662A & conform to ISO 9000 when ordered with calibration certification.
Cup No. 5 compatible to requirements of federal specification MMM-A-121 for adhesives
Directly related to Standard Ford Cup series designed, standardized and produced by the Paul N. Gardner Company, Inc.

A mathematical formula developed for each Mini Ford Dip Cup in the series, relating time in seconds to centistoke viscosity defines cup flow characteristics with respect to standard oils traceable to U.S. National Institute of Standards & Technology. The resulting formula have been solved for each tenth second within the recommended cup range. A table with this information as well as the cup formula is furnished free with each cup.

Technical Attributes

Cup Model

Ford Standard Cup
Cup No.

0

Data

Ford Standard Cups
Ford Standard Cup Number	Conversion Chart Seconds Range	Conversion Chart Centistoke Viscosity Range	Calibration Liquid
0	57 to 120	2 to 14	G-6
1	60 to 120	12 to 40	G-10
2	37 to 120	25 to 120	G-35
3	23 to 120	29 to 273	G-60
4	16 to 120	34 to 441	G-60
5	10 to 120	77 to 1413	G-200
Ford Standard Dip Cups
Ford Dip Cup Number	Standard Oil	Approximate Centistoke Value	Efflux Time In Secs.
3	G60	120	56
4	G60	120	35
5	G200	450	39
To find the exact efflux time in seconds, substitute the centistoke value of the oil from the bottle label in the conversion table furnished with the cup. Read from the table the applicable efflux time in seconds or use the formula on the reverse side of the table.
Ford Mini Dip Cups
Ford Mini Dip Cup Number	Conversion Chart Seconds Range	Conversion Chart Centistoke Viscosity Range	Average Centistokes Per Sec.
0	28 to 60	2 to 14	0.4
1	30 to 60	12 to 40	1.0
2	18 to 50	25 to 120	2.8
3	12 to 60	29 to 273	5.0
4	10 to 60	53 to 441	7.6
5	10 to 60	215 to 1413	25.0

More Information

Ford Standard Cup

The internal dimensions conform to those specified in the ASTM Method D1200 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.

The drip ring surrounding the top of the cup has been increased in volume to accommodate a greater amount of material. This change con minimize the frequency of cleaning or reduce spillage in long series of tests.

Pictured on the right is a cross section of the orifice used in both the Gardco Standard and the Gardco Ford Dip Cups. Note that the upper interior portion, following the conversion from the slope of the cup interior is spherical in shape rather than conical. It has been found that this shape provides a cleaner break of the stream as the cup empties. In addition, the length of the orifice is better defined in accordance with theory. The "0" orifice does not have this feature as it is longer and has less need of this shape.

In the new design the exterior of the brass orifice is a truncated cone, sized to match a conical section in the body of the cup. This design insures close fit with no gaps between the body and the orifice either at the top or bottom. This design also eliminates the hard to clean areas that exist in most other designs.

Standards

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Procedure

It is helpful, and results will be more consistent, if all viscosity determinations are made in a room that is free from drafts or quick temperature change, and is within ±3°C (±5°F) of the viscosity measuring temperature of 25°C.

Ford Standard Cup

Adjust the sample to measuring temperature, usually 25°C (77°F).
Select the cup that will provide readings which are well within the cup range.
Make sure that the cup is clean and place it into its support.
Make sure that the cup is level.
Place a finger under the cup orifice and fill the cup with bubble free test material. The cup is full when the meniscus disappears where the liquid joins the sidewall of the cup. If the cup is overfilled, scrape the access into the cup well with a spatula or by passing the cover plate across the top of the cup. Note that the finger can be removed from the orifice when the cover plate is in place.
Start a timer as the cover plate is removed from the cup.
Determine the temperature of the efflux stream. If there is a significant change during the test it should be repeated.
Stop the timer at the first break of the efflux stream, one or two inches below the orifice.
Record the cup type and number, measured temperature, and efflux time. For best accuracy, average three or more readings.
Promptly clean the cup, giving special care to the orifice.

Ford Dip Cups

The Gardco Mini Dip Cups should have the same care as the Gardco Standard Series as they are produced to the same close tolerance. The use of the dip cup, however, is somewhat different:

Adjust the temperature of the material to be measured, if necessary. Lower the cup into the material so that the cup rim is submerged. Place a thermometer into the cup as it is immersed and determine the temperature of the confined sample. Remove thermometer. Quickly raise the cup from the material, high enough to easily observe the efflux stream and at the same time, start the timer. Closely observe the efflux stream and stop the timer at the first break in the stream, one to two inches below the orifice.
Record the cup used (ex., Gardco Mini Dip #4), the measured temperature and the efflux time. If the efflux time is immediately converted to Gardco Standard Cup time by multiplying by two, it should be so noted.
Promptly clean the cup with close attention to the orifice.

Delivery Content

Instruction Manual and Grid Set provided with each cup.

Accessories