Critical for fish farms

Dissolved Solids (Heavy Metals) such as Arsenic

MA9060 is a lab grade 12880 µS/cm conductivity solution standard prepared against a NIST traceable potassium chloride solution that allows you to recalibrate your conductivity meter or tester

Whether you're testing water quality in a hydroponics facility

TDS Range: 0 to 995 ppm (mg/L)

Hanna Instruments Zero Oxygen Solution Set (500 mL) dishwasher safe bottle Critical for fish farmsHI7040L is a high quality, bicomponent zero oxygen solution made from reagent grade chemicals. Hanna dissolved oxygen solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Prepared with reagent grade chemicals Hassle free, easy to mix chemical component bottles Air tight seal to ensure the quality of the solution HI7040L is a bicomponent zero