Apera Instruments AI4205 AMCO Turbidity Standard Calibration Solution Kit (20 / 100 / 400 / 800NTU) for TN500

Features:

• Standard Calibration Solution Set for Apera Instruments White Light Portable Turbidity Meters (TN500 and TN420)
• AMCO Clear^®  turbidity standard solutions (20.0 NTU, 100 NTU, 400 NTU, 800 NTU).
• AMCO Clear^® is an EPA approved primary standard for calibration of turbidity sensors that is safe, non-toxic and disposable. It is easy-to-use with no dilution or resuspension, and it is available in a wide range of values.
• The convenient submicron polymer suspensions are non-toxic primary calibration standards approved by the US EPA for drinking water analysis for turbidity.
• Store at room temperature. Never freeze.