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Zahn Calibration Oils

Zahn Calibration Oil Pint

Zahn Calibration Oil Pint

Ref: mis-zcog

Price: $102.85


Click Here for Zahn Calibration Stopwatch.

A Zahn Cup is no different than any other precision quality control instrument. It needs to be calibrated from time-to-time, based upon its frequency of usage. The standard oils used for calibration are available from Bay press Services. Refer to the chart when inquiring about calibration oils for your specific Zahn Cup. It is necessary to time the liquid flowing from the cup, accurate to a tenth of a second. For this purpose, Bay press Services now offers a digital stopwatch, part # MIS-SW.

The following table provides specifications of the various cups:

All viscosity standards are packaged in sealed, dark glass bottles. Net content of each bottle is 0.47 Liter (1 Pint). A label on each bottle gives the Standard Name, Lot No., Termination Date, Viscosity in Centistokes at 25.00C (77.00F)* and a statement that the standard "is prepared expressly for Paul N. Gardner Co., Inc., P.O. Box 10688, Pompano Beach, FL 33061-6688" by the Cannon Instrument Company and that data on the standard is traceable to the National Institute of Standards and Technology. A Material Safety Data Sheet (M.S.D.S.) accompanies each bottle of oil.


Technical Data
Cup Number  Seconds Range Centistoke Range Midrange Sensitivity¹ Calibration Oil  Number²
1 40 to 60 10 to 36 1.3 G-10/19
2 20 to 60 19 to 156 3.3 G-60/117
3 12 to 60 64 to 596 10.5 G-200/458
4 10 to 60 79 to 784 13.9 G-200/458
5 10 to 60 161 to 1401 24.2 G-350/878
¹ Stated as centistokes per second of efflux time.
² Centistoke values are nominal - actual values printed on labels
  • Oil for Zahn Cup #1   
  • Oil for Zahn Cup #2   
  • Oil for Zahn Cup #3 & #4   
  • Oil for Zahn Cup #5   

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