FORD Ford viscosity cupDetailed product description：

Product Description:
The FORD Ford viscosity cup is made according to the paint and raw material standards ASTM D 1200, D333, D365 of the American Society for Testing and Materials, and is a convenient viscometer used to measure the viscosity of inks, coatings, paints, and other materials. It is refined from high-quality aluminum cups with small holes at the bottom and a capacity of about 100ml.  

The Ford cup measures the viscosity of a sample by measuring the time it takes for a certain capacity of the sample to flow out of a small hole at the bottom of an aluminum cup.

1、 FORD Ford viscosity cup technical parameters
1. Cup volume: 100 ± 1ml
2. Various cup number indicators

Cup number	two	three	four
Aperture (mm)	two point five four	three point three zero	three point eight one
cSt	25~120	40~220	70~370

2、 Equipment and tools

1. Stopwatch: Accuracy 0.1 (self provided)
2. Ford Cup Stand (optional)

3、 Usage method

1. Before use, the inner wall of the cup should be wiped clean with a suitable solvent (note: please pay special attention to cleaning the small holes in the cup, which can be twisted into a rope with soft paper and repeatedly pulled in the outflow hole); Then dry in the air or blow dry with cold air, and no residual liquid from the past is allowed to adhere to the cup or outlet.
2. Choose the appropriate cup size to control the outflow time between 20 and 80 seconds (see technical specifications).
3. Stir the test solution evenly and filter it through a sieve with no less than 567 holes per square centimeter. Adjust the temperature of the sample and the outflow cup to (23 ± 0.5 ℃) or another agreed temperature.
4. Adjust the Ford cup bracket to center the horizontal bubble on top.
5. Inject the sample into a Ford cup and block the outflow hole with one finger (if it is a corrosive liquid, a baffle can be used to block the outflow hole). After filling, use a metal or glass plate to scrape flat on the cup. Scrape the excess sample into the groove on the edge of the viscosity cup and place it in the receiving cup.
6. Release or push open the baffle with your fingers, the sample flows out vertically, and at the same time, start the stopwatch. When the first breakpoint occurs and the timing stops, the number of seconds of the outflow time is the viscosity value of the sample to be tested.
7. Repeat the measurement three times and take the average as the final reading.
8. Immediately clean it with a suitable solvent. Never use metal cleaning tools or wires. If the outflow hole is contaminated with dry sediment, use a suitable solvent to soften it, and then carefully clean it, such as using a soft cloth to rub and clean through the outflow hole.

5、 Maintenance precautions

Due to the drop or collision of Ford cups, small holes may be damaged or deformed, resulting in measurement errors. Therefore, it is important to take good care of them during use.

6、 Calibration

1. The instrument should be calibrated regularly after each year of use (the diameter of the nozzle before leaving the factory has been calibrated with Newton oil traceable to NIST oil, and users do not need to calibrate separately within one year after purchase)
2. Calibration needs to be carried out using standard silicone oil according to the relevant national viscosity cup measurement regulations.

7、 Other

The result obtained from a specific immersion cup should be expressed in seconds at a specified temperature. To convert 'seconds' to centixtron, please refer to ASTM D 4212.

Cup number	application	k	c
two	Thin oil, mixed paint, clear varnish	one point two four	seven hundred and seventy
three	Medium viscosity, mixed coatings, clear varnish	two point three one	five hundred and fifty
four	Thicker fluids and mixtures	three point seven	four hundred