The Cal-Chex X whole-blood calibrator, assayed on analyzers calibrated with whole blood using standard reference methods, ensures accurate and reliable calibration of hematology analyzers. Cal-Chex X has a 5-day, open-vial stability and a 45-day, closed-vial stability, and it complements the company’s Para® 5X whole-blood hematology control.

Streck
(800) 843-0912; www.streck.com