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HI749-11 Chromium VI LR Calibration Standards

SKU: 208634

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Regular Price: $18.99

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  • Quick Overview
Easily calibrate and test proper functionality of your Hanna Checker HI749 Chromium VI LR for fresh water.
  • Contains Standard A and Standard B
  • Follow instructions in packaging
  • Acceptable results must be between 95 and 105 ppb at 25°C