Name: Zahn EZ Viscosity Cup #5
Price: 173.0 USD
Availability: InStock

Features

The EZ™ Viscosity Cups are produced to very close mechanical tolerance in elaborate jigs and fixtures, ensuring that each cup is correctly produced and are identical
All parts of the flow cup are of stainless steel except for the name plate
The formula for each cup of the series matches the applicable ASTM formula in D4212 at the recommended calibration level with 3% guaranteed tolerance that complies with & exceeds ASTM D4212
Compatible to ASTM D1084 Viscosity of Adhesives and ASTM D816
Calibration is traceable to the National Institute of Standards and Technology (NIST)
Calibration and Certification procedures qualify under ISO/IEC 17025 as applicable
Conversion table relating efflux time in seconds, to the nearest tenth of a second, to viscosity in centistokes included
Orifices are machined rather than drilled to insure exact centering in the cup hemisphere base and a minimum of burr formation, insuring an orifice of specified length and a correct symmetrical efflux stream
The support rods are offset from the side of the cup and secured to the cup sidewall below the cup rim, eliminating errors due to test material drainage from support surfaces
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
Viscosity Cups are non-returnable items and subject to final sale

Technical Attributes

Data

Cup Number	Seconds Range	Centistoke Range	Midrange Sensitivity ¹	Calibration Oil Number ²
1	40 to 60	10 to 36	1.3	G-10/19
2	20 to 60	19 to 156	3.3	G-60/117
3	12 to 60	64 to 596	10.5	G-200/458
4	10 to 60	79 to 784	13.9	G-200/458
5	10 to 60	161 to 1401	24.2	G-350/878
¹ Stated as centistokes per second of efflux time. ² Centistoke values are nominal - actual values printed on labels

Standards

ASTM D816
ASTM D1084
ASTM D4212

Procedure

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.
Insure that the cup is clean and that there is no residual dried material in or around the orifice.
Adjust the temperature, if necessary, of the test material.
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.
Measure and record the temperature of the material that is encompassed by the cup.
Hold cup vertically by inserting index finger into handle ring. 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. During the flow time, hold the cup no more than 6” above the level of the sample material.
Stop the timer when the first definite break in the stream at the base of the cup is observed.
Record the number of seconds of efflux time, temperature and the cup number. (Example: No. 2 EZ™ Dip Cup, 48.1 seconds at 25.1°C.) As an option to the preceding step, refer to the Viscosity Calculator App or conversion table for the cup to determine the centistoke viscosity for the measured efflux time in seconds and record this value and the measured temperature.
Promptly clean the cup unless it will be used immediately for a rerun of the same material. (Use a length of nylon fishing line to clean the orifice.)

Downloads

Manuals

EZ Quick Guide-5.pdf

Knowledge

Viscosity is an important property to measure when it comes to many industries, such as food, cosmetics, paint, pharma and many more. Zahn, Ford, DIN, ISO, Fisher, Parlin and other types of cup viscometers are a common tool used to determine the viscosity of a wide variety of viscous materials.

It can be a tricky process, but this article will outline the proper procedure for [...] READ MORE

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