Calibrated EZ® Viscosity Cups
These "Equivalent Zahn" viscosity cups from Paul N. Gardner Co., Inc. meet ASTM D4212 drain time specifications. They are also compatible with ASTM D1084 and ASTM D816. Machined orifices are essentially burr-free and exactly centered in the cup hemisphere, ensuring uniform orifice geometry and minimum cup to cup shear rate variability. Handles are offset from the side of the cup and secured below the rim, eliminating errors due to drainage from the support surfaces. The precision workmanship and unique design allow calibration tolerances within 3%. Cup and handle are 100% stainless steel. EZ® cups receive the highest quality recommendation from Diversified Enterprises.
Each cup is supplied with a conversion chart for drain time in seconds vs. viscosity in centistokes.
Use the appropriate calibration oils to assure continued accuracy. Never use silicone-based oils to calibrate viscosity cups; they leave a residue that alters performance. EZ® cups qualify for certification under the requirements of MIL STD 45662A or ANSI/NCSL Z540-1. Please call for information on certified cups.
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*Midrange Value stated as centistokes per second of efflux time.