Verifying instrument accuracy.

Cal-Chex A Plus


A whole blood product manufactured for calibrating multi-parameter hematology analyzers.


  • Value-assigned from replicate analysis on whole-blood calibrated analyzers
  • Assayed on Abbott CELL-DYN® 3500, 3700 and Ruby® instruments
  • Available in plastic cap-pierceable vials for analyzer autosampling


  • 45-day closed-vial stability
  • 5-day open-vial stability

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This is also licensed for sale in Canada.

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Standing Order Schedule

Schedule I: 13 shipments (a shipment every 28 days)
Schedule II: 7 shipments (a shipment every 56 days)
Schedule III: 5 shipments (a shipment every 84 days)
Schedule VI: 3 shipments (a shipment every 168 days)

Use the drop-down menu to select your product. If you don’t find your product listed, call Customer Service at 800-228-6090.

Note: Standing orders are shipped during the week of the release date.