They are produced according to ASTM D 816, ASTM D 1084,and ASM D 4212. ¹ Stated as centistokes per second of efflux time.BGD 126 Zahn Cups can be used to quickly measure the viscosity of liquids such as Paint, Ink, Varnishes, Syrup and Oil. Following this table are graphs and mathematical formulas that relate efflux time in seconds to centistoke viscosity. The following table provides operating range specifications, cup midrange sensitivity and recommended calibrating oils. All parts of the 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™ 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 Z54O-1 or MIL-STD-45662A 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™ 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 D 4212 but, in addition, each EZ 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 new EZ Viscosity Cup Series is a logical and necessary outgrowth of the standardization studies on the Zahn Signature and similar cups for the promotion of this most popular type of viscosity measuring instrument as a national and international standard. 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 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. EZ Cup orifices are machined rather than drilled to insure exact centering in the cup hemisphere base and a minimum of burr formation.The finest, most reliable, calibrated & documented cup on the market.The EZ Cup is not matched by any other cup of its type, either with respect to the advantages listed above, in highest quality of workmanship or in continuing quality control procedures.Calibration and Certification procedures qualify under ANSI/NCSL Z540-1 or MIL- STD- 45662A as applicable.EZ Cup calibration is traceable to the National Institute of Standards and Technology.EZ Cups are compatible to ASTM D 1084 Viscosity of Adhesives and ASTM D 816.Ĭonversion table relating efflux time in seconds, to the nearest tenth of a second, to viscosity in centistokes furnished with each EZ™ Cup.
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