Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Streck STaK-Chex™ Controls for Beckman Coulter™ Instrument Available on GSA/VA Contract for Federal Government customers only.

A complete assay for the five-part white cell differential

Manufacturer:  Streck 225503

 View more versions of this product

Catalog No. 11-716-337

Add to cart
This item is not returnable. View return policy



  • STaK-Chex is a whole blood five-part white cell differential control formulated for the Beckman Coulter STKS™, MAXM™, HmX and LH500·S™
  • STaK-Chex is manufactured at clinically recognized normal, low and high abnormal levels for all parameters
  • The whole blood control offers distinct populations of lymphocytes, monocytes, neutrophils, eosinophils and basophils
  • White blood cell percentages vary for each cell type and are within clinically significant ranges
  • The precision and accuracy of the white cell differential is controlled each time STaK-Chex is analyzed
  • STaK-Chex assay value files are available for download for the LH 500 and HmX. Assay sheets are bar coded and can be scanned with the Coulter wand
  • STaK-Chex has a 105-day closed-vial and a 14-day open-vial stability

This product(s) resides on a Fisher Scientific GSA or VA contract. If you are viewing this page as a nonregistered user, the price(s) displayed is List Price. To view your GSA or VA contract pricing, log in using your account number, or become a registered user by contacting one of our Customer Service teams. You can also view your contract price by searching for this item(s) on GSA Advantage. To place an order, contact Fisher Scientific Customer Service.

Order Info

Packaged in 4.0mL, pierceable-cap vials



STaK-Chex™ Control
Beckman Coulter™ STKS™, MAXM™, HmX and LH 500
3 x 4mL
1 Low, 1 Normal, 1 High
105 Days
2° to 10°C
For evaluating the accuracy and precision of automated and semi automated procedures that measure Blood cell parameters
Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit