Drinking Water,  Environmental Reference Materials,  PT Express

Hexavalent Chromium Concentrate – Blind #QCI-128B

A 10.5 mL concentrate for determination of Hexavalent Chromium. Formulated in the NELAC range of 5 - 50 ug/L. Each ampule produces 2 liters of sample. PT Express may take up to 10 business days to ship. read more