Value Assignment Sheets

Use Value Assignment Sheets to locate the correct target values and ranges for your i-STAT test cartridge controls and calibration verification materials. You may also access electronic Value Assignment Sheets (eVAS). Content on this page was updated on 02-July-2021.

Find your value assignment sheet

To find the right Value Assignment Sheet, you must have:

  • CLEW revision (found within the handheld’s Status Page)
  • Control/Calibration Verification lot number found on the box (not the unique lot for each level located on the vials of the Calibration Verification kits)
  • Cartridge type and lot number (found on cartridge pouch or cartridge box)

To locate the correct ranges for your controls:

  1. Select the CLEW revision below that corresponds with the handheld’s current CLEW.
  2. Locate and select the Control/Calibration Verification lot and type below that corresponds with your lot number.
  3. Locate cartridge type and lot prefix letter WITHIN the value sheet that corresponds with your cartridge.


Clew A41 EXPIRED JUNE 23, 2021



Download electronic Value Assignment Sheets to streamline and simplify the liquid quality control process.

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