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Hanna Instruments-747-11 is a high-quality set of calibration standards that allows users to validate the Copper Low Range Checker®HC – Hanna Instruments-747. The Hanna Instruments-747-11 includes one sealed cuvette for zero ppb copper and one cuvette that is tinted to an equivalent 500 ± 100 ppb copper sample @ 25°C. The calibration check set is produced using reagent grade chemicals in a temperature controlled environment.
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