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HI707-11 Nitrite LR Calibration Standards

SKU: 208604

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  • Quick Overview
Easily calibrate and test proper functionality of your Hanna Checker HI707 Nitrite LR for fresh water.
  • Contains Standard A and Standard B
  • Follow instructions in packaging
  • Acceptable results must be between 90 and 110 ppb at 25°C
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