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Viscosity Cup Oil - Certified Standard

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Warning: Silicone fluids should not be used to calibrate viscosity cups. These materials change the interface between the cup surface and the test material and therefore change the cup calibration. The following is taken from ASTM D 445: Viscometers used for silicone fluids should be reserved for the exclusive use of such fluids. Solvent washings from these viscometers should not be used for cleaning other viscometers.

Gardco produced viscosity cups are calibrated with standard “G” series oils. These standard calibration oils prepared expressly by the Cannon Instrument Company for the Paul N. Gardner Company are produced in accordance with ISO/IEC 17025:2005, ISO/IEC Guide 34:2009, ISO 9001:2008.

Centistokes viscosity of these oils is traceable to the National Institute of Standards and Technology. These oils are available from the Paul N. Gardner Company. Shown in the graph is the viscosity cup number and the standard “G” oil used for its calibration. Normally, cup calibration is at 25 degrees Celsius, shown on the graph by bold lines intersecting with the curve in the circle. Graphs for all cups in the EZ series are included with each cup sold by Paul N. Gardner Company.

Viscosity of most liquids, including the standard oils, are dependent on temperature. Efflux time in seconds for the indicated cup-oil combination from twenty (20) to twenty seven (27) degrees Celsius is shown in the graph. The cup may be checked with the indicated “G” oil with reasonable accuracy within these limits. For best accuracy, the temperature of the standard oil should be 25°C. The standard oil value in centistokes is printed on the standard oil bottle label. Conversion from viscosity to efflux time in seconds is by formula or table which defines the characteristics of the cup. The applicable formula and table are furnished with each cup sold as an additional customer service by the Paul N. Gardner Company and licensed distributors.


Viscosity Cup Oil - Certified Standard
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Product NumberGardco No.DescriptionPackagingQtyPrice
22-4371-01VI-3803G-10 Certified Viscosity Standard - PintEach
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$123.44
22-4371-02VI-3815G-60 Certified Viscosity Standard - PintEach
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Less
$123.44
22-4371-03VI-3821G-200 Certified Viscosity Standard - PintEach
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Less
$123.44
22-4371-05VI-3825G-350 Certified Viscosity Standard - PintEach
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Less
$123.44

 

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