Omaha, NE – Streck’s Retic-Chex® Linearity, designed to establish the patient reticulocyte reportable
range and linearity, is now assayed for the Sysmex® XN-Series (XN-10 & XN-20).

The accuracy of hematology instruments can be verified by comparing the laboratory’s reportable range
with Retic-Chex Linearity assays with instrument-specific values for reticulocyte percentages.
Verification may be necessary when a new instrument or reagents are introduced, daily controls reflect
an unusual trend or shift outside of the lab’s acceptable limits, major instrument maintenance occurs or
essential parts are replaced.

Values are also assigned for Coulter DxH™ 800, LH 500, LH 750/LH755, LH 780, STKS™/MAXM™/HmX;
Abbott CELL-DYN® 3200, 3500/3700, Ruby® and Sapphire®; and Sysmex XE-2100™, XT-2000i™/XT-4000i™.

Retic-Chex Linearity is available in five-level sets with 3.0ml plastic cap-pierceable vials. Closed-vial
stability is 105 days and open-vial stability is 5 days.

About Streck, Inc.
Streck is an industry leader in the development and manufacturing of products for clinical and research laboratories. The company’s pursuit of innovative solutions has produced an extensive list of patented products. Streck’s core technology is cell stabilization; product lines support the fields of hematology, immunology and molecular diagnostics. For more information, visit

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