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Hanna Instruments pH 7 Calibration Solution, 230 mL

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Color-coded labels for easy identification!

Hanna Instruments? premium quality pH 7.01 calibration solution have an accuracy of ± 0.01pH at a temperature of 77°F (25°C). Each bottle of calibration buffer has a lot number and expiration date clearly marked on the label and are airtight with a tamper-proof seal to ensure the quality of the solution. With the color coded label you will be able to easily identify different buffer values. Designed for use with pH meters when measuring pH levels at or above 7.01. Simply dip the pH electrode into pH 7.01 solution as the first buffer and wait for the unit to stabilize to a pH of 7.01 and its ready to use! If measuring below pH levels of 7.01 then use pH 4.01 as the second buffer solution. Discard buffers after each use for best results.
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