During the flow time, hold the cup no more than 6” above the level of the sample material. In a quick, steady motion, lift the cup out of the sample material, starting the timer when the top edge of the cup breaks the surface.
#Viscosity cups free
Completely immerse the cup into the material to be measured in a location free from bubbles or foam, holding the cup vertically by means of the stainless steel split key ring.Adjust the temperature, if necessary, of the test material.Insure that the cup is clean and that there is no residual dried material in or around the orifice.Select the proper number cup to be used from the Specification Table, which is dependent on the expected viscosity range of the material to be measured.Following this table are graphs and mathematical formulas that relate efflux time in seconds to centistoke viscosity. 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.
#Viscosity cups series
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.
The EZ Flow Cup formula for each cup of the series matches the applicable ASTM formula in D4212 at the recommended calibration level.More information can be found in our EZ Viscosity Cup Manual. All EZ Viscosity Cups are made of stainless steel and are calibrated at our Gardco Service Department. It is not matched by any other dip cup of its type, either with respect to the advantages listed below, in highest quality of workmanship or in continuing quality control procedures. The EZ Zahn Viscosity Dip Cup is the finest, most reliable, ASTM calibrated & documented viscosity cup on the market. Home > Products > Viscosity > EZ Zahn Viscosity Cups
0 kommentar(er)
