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ISO Flow Cup 3 mm

  • Range in Centistokes: 10 - 40
  • Efflux Time in Seconds: 30 - 100
  • Orifice Diameter in mm: 3
  • Certificate included
$263.00 excl. taxes & shipping cost


  • Body made of anodized aluminum
  • Stainless steel orifice, interior polished
  • Calibrated against standard oils referenced to certified PTB (Federal Institute of Physics and Metrology of Germany) oils to be within 3% (drain time of calibration oil)

Technical Attributes

  • Standard
    ISO 2431
  • Range
    10 - 40 cSt
  • Efflux Time
    30 - 100 sec
  • Certificate
  • Orifice Diameter
    3 mm







  • Place flow cup in a precisely horizontal position using ring stand or temperature control jacket
  • Close orifice
  • Pour in test liquid
  • Draw a clean glass plate over the rim of the cup, removing superfluous liquid into the overflow reservoir and closing the cup
  • Remove glass plate horizontally
  • Open the orifice and start the stopwatch simultaneously
  • Stop the watch with the first break in the efflux stream
  • Repeat the measurement three times, each with a new sample of the same material
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