S90 Zahn Viscosity Cups
Art. No.: 13573
Zahn S90 Viscosity Cup #1
- S90 Signature Series Zahn Viscosity Cup #1
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- Made from stainless steel calibrated Viscosity Dip Cup
- GARDCO is the only producer authorized to use the Zahn name and has added the S90 designation to identify the improved viscosity cups manufactured on new state-of-the-art equipment to insure optimum quality and uniformity
- S90 Zahn cups are calibrated with standard "G" series oils traceable to the National Institute of Standards & Technology (NIST).
- Ransom & Randolph recommends the S90 Zahn Viscosity Cups as the most reliable viscosity cups to measure and control the consistency of ceramic shell slurries.
- S90 Zahn Dip cups do not meet ASTM Specification D4212. Not all S90 Zahn Cups deviate from the standard by the same amount - the range being from near compliance to a variance exceeding a factor of two. Manufacturing procedures include calibration with oils traceable to the National Institute of Standards and Technology (NIST). Certification with compliance to ANSI/NCSL Z540 or ISO/IEC 17025, ISO 9001, as applicable, is available at our Gardco Service Department. Tables are available which convert between S90 Zahn Signature and EZ™ cups of the same number, to the nearest tenth of a second, to assist those who need to work with both established standards.
- NOTE: Efflux time from these viscosity cups does not meet ASTM specifications. Tables are available for converting S90 Zahn cup efflux time to EZ™ Zahn cup efflux time which complies with ASTM D4212.
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| ASTM | D816 D1084 D4212 |
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Zahn S90 Viscosity Cup #1
Manuals
- S90 Zahn Cups Quick Guide.pdf
S90 Zahn Cups Quick Guide.pdf
- Select the cup to be used from the Range Specification table.
- Insure that the cup is clean, especially around the orifice.
- Adjust temperature of the material to be tested, if necessary.
- Holding the cup by the ring, immerse it into the test material.
- Measure and record temperature of material encompassed by 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 cup name, number and efflux time in seconds with temperature. 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 taking care not to abrade orifice. Use a length of nylon fishing line to clean the orifice.
Want to learn the perfect process for using a viscosity cup? The article link below provides information on how to choose the right viscosity cup, how to measure efflux time, how to remove calibration oils and much more. - The Proper Process for Measuring with a Viscosity Cup
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