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The standards have a guaranteed one-year shelf life even if you've opened the bottle and happened not to have recapped it tightly.

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.

            T500-1 Polymer AMCO Turbidity Calibration Solution Kit (20/100/400/800NTU)

              • 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.
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