Order # 65202409 Manufacturer# 214104 Brand ESR-Chex Manufacturer Streck Laboratories Application Control Levels 2 Levels Test Name Erythrocyte Sedimentation Rate (ESR) Test Type Hematology UNSPSC Code 41116122 Volume 4 X 9 mL ESR-Chex is a two level hematology control used to monitor erythrocyte sedimentation rates Controlling sedimentation rate procedure allows the clinical laboratories to meet internal quality control standards and regulatory complience ESR is a positive procedure control for manual and automated sedimentation rate methods The control has 95 day open vial stability and 12 month closed vial stability