S90 Zahn Dip Viscosity Cup

S90 Zahn Viscosity Cups

Art. No.: 13579

Zahn S90 Viscosity Cup #4

  • S90 Signature Series Zahn Viscosity Cup #4

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€142.00

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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.

Technical Data Chart
Data
Item NumberCup No.Seconds RangeCentistoke Range
13573131 to 6015 to 78
13575219 to 6039 to 238
13577311 to 6063 to 604
13579410 to 6097 to 899
13581510 to 60219 to 1627
Certificate of Calibration available at additional charge for all cups.
Cup No.Efflux Time Seconds “T” from Centistokes “V”Centistokes “V” from Efflux Time in seconds “T”
1T = (V + √ (V2 + 6805) ) ÷ 3.18V = 1.59T - 1070 ÷ T
2T = (V + √ (V2 +12707) ) ÷ 8.36V = 4.18T - 760 ÷ T
3T = (V + √ (V2 + 23529) ) ÷ 20.46V = 10.23T - 575 ÷ T
4T = (V + √ (V2 + 32983) ) ÷ 30.26V = 15.13T - 545 ÷ T
5T = (V + √ (V2 + 58903) ) ÷ 54.54V = 27.27T - 540 ÷ T
Note: Furnished with each cup is a conversion table for each tenth of a second within the cup range.
Catalog NumberOil NumberUse With Cup NumberNominal Centistokes* at 25°C., 77°F.
13642G20134
13646G602120
13649G1003230
13653G3504 and 5880
*Certified value is printed on container label. Note: A graph is furnished with each cup showing efflux time of the "G" oil from 20 to 27 degrees Celsius.

These standard oils prepared expressly by the Cannon Instrument Company for the Paul N. Gardner Company are produced in accordance with ISO/IEC 17025:2005, ISO/IEC Guide 34:2009, ISO 9001:2008.

Caution: Silicone fluids should not be used to calibrate viscosity cups. These materials change the interface between the cup surface and the test material and therefore change the cup calibration. The following is taken from ASTM D445: Viscometers used for silicone fluids should be reserved for the exclusive use of such fluids. Solvent washings from these viscometers should not be used for cleaning other viscometers.
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