Wastewater Effluent Inorganics Quality Control Standard. Ready to use; no dilutions required. Mixed standard contains: Ammonia Nitrogen: 2 mg/L NH3-N, Nitrate Nitrogen: 4 mg/L NO3--N, COD: 25 mg/L, Phosphate: 2 mg/L PO43-. Sulfate: 50 mg/L SO42-. TOC: 8 mg/L. 500 mL Bottle.
Hach products are intended for sale/shipment within the US only. International customers should contact their local Hach distributor to place orders for Hach products.