Environmental Reference Materials,  Inorganics,  Residual Chlorine,  Wastewater QC Knowns

Total Residual Chlorine QC Concentrate CRM #QCI-033

Convenient and easy to use. Dilute 1mL from an ampule to 1000mL to reach certified value.  Always the same, lot to lot, so your dilution process remains the same minimizing errors in your lab. read more