This product is also licensed for sale in Canada.

Sed-Rate Control 

ESR-Chex is a two-level hematology control used to monitor erythrocyte sedimentation rates. It provides superior sed-rate accuracy, reacting to physical factors such as benchtop vibration, temperature and tube angle, and alerts the technologist to possible problems that may affect the accuracy of patient results.

ESR-Chex is manufactured from human red blood cells and is assayed for the most frequently used sedimentation rate tubes in conjunction with the Classical Westergren, Modified Westergren, and Wintrobe methods. ESR-Chex is used in the same manner as a patient sample.

Streck offers STATS®, a free Interlaboratory Quality Control program for our customers.


  • 12-month closed-vial stability
  • 95-day open-vial stability

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Certificates of Compliance (COC)
Product Information
Manufacturer Instrument
Streck ESR-10 Manual Rack
Streck ESR-100
Streck ESR-Auto Plus®
Vital Diagnostics Excyte® 10/M
Diesse Mini-Ves®
Polymedco Sedimat® 60
Diesse Ves-Matic®
ESR-Chex Catalog Number
2 x 9.0 mL (Level 1 & 2) 214102
4 x 9.0 mL (Level 1 & 2) 214104
8 x 9.0 mL (Level 1 & 2) 214108
12 x 9.0 mL (Level 1 & 2) 214112