Environmental Reference Materials,  PT Express,  Wastewater

Hardness – Blind #QCI-137B

A 250 mL ready-to-use sample packaged in a HDPE bottle to be analyzed for:  Calcium 10 - 100 mg/L, Magnesium 4.0 - 40 mg/L, Total Hardness 40 - 415 mg/L, Calcium Hardness 25 - 250 mg/L. Exact values are documented on lot COA. PT Express may take up to 10 business days to ship. read more