![]() The listed viscosity value of these oils as shown on the container label is traceable to the National Institute of Standards and Technology. It is recommended, however, that calibration of the cup be confirmed periodically, or if dropped or otherwise subjected to damage, with the appropriate standard oil selected from the specification table. Viscosity Cup Care - EZ™ viscosity cups are ruggedly constructed with all parts made of stainless steel, except the nameplate, and will give many years of satisfactory service requiring only thorough cleaning after each use. This information is furnished upon the condition that the person receiving it shall make his own tests to determine the suitability thereof for his particular purpose. ![]() However, NO WARRANTY IS EXPRESSED OR IMPLIED REGARDING THE ACCURACY OF THESE DATA, THE RESULTS TO BE OBTAINED FROM THE USE THEREOF, OR THAT ANY SUCH USE WILL NOT INFRINGE ANY PATENT. The information contained herein, or supplied by us or on our behalf in any other manner is based on data obtained by our own research and is considered accurate. Following this table are graphs and mathematical formulas that relate efflux time in seconds to centistoke viscosity.ĮZ™is a Registered Trade Mark of the Paul N. The following table provides operating range specifications, dip cup midrange sensitivity and recommended Canon calibration oils (standards). All parts of the flow cup are of stainless steel except for the name plate. Such equipment not only insures that each cup is correctly produced but also that all cups are identical. The EZ™ Viscosity Cups are produced to very close mechanical tolerance in elaborate jigs and fixtures. ![]() This document contains not only information on actual cup calibration with standard oils traceable to the National Institute of Standards and Technology but in addition, this certification also complies to conditions and procedures under the requirements of ANSI/NCSL Z540 or ISO/IEC 17025 as applicable. This table is particularly useful in determining efflux time in seconds when viscosity in centistokes is known.įor those users who require documented certification of their measuring equipment, the EZ™ dip cups may be ordered, at an additional charge, with a CERTIFICATE of CALIBRATION. Not only has this cup been improved with respect to earlier produced cups and designed to comply to the requirements of ASTM D4212 but, in addition, each EZ Viscosity Dip Cup is furnished with a table which permits conversion between efflux time in seconds to the nearest tenth of a second to viscosity in centistokes. The EZ Viscosity Cup Series is a logical and necessary outgrowth of the standardization studies on the Zahn Signature Viscosity Cup and similar cups for the promotion of this most popular type of viscosity measuring instrument as a national and international standard. Viscosity Cups are non-returnable items.The increased separation width of the support rods by over 20% and the lowering of weld to the cup provide best possible conditions for cleaning.This eliminates errors due to test material drainage from support surfaces. The EZ Viscosity Cup support rods are offset from the side of the cup and secured to the cup sidewall below the cup rim.This insures an orifice of specified length and a correct symmetrical efflux stream. ![]()
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