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pH Buffer Calibration Pouches
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A handy way to calibrate your pH meter in the field, these disposable pouches each contain 20 mL of pH calibration solution, sealed airtight for guaranteed freshness and reliability.
Packets are conveniently labeled with a temperature vs. pH reference table and equivalent values for ppm in KCL, NaCl and 442. CAS numbers are also included for all ingredients. The assorted package contains five packets each of pH 4 and 10 calibration solutions and deionized rinse water.
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