
Oakton pH Calibration Buffer Pouches, pH 4.01, 20/pk
SKU : COP3565301Log in for pricing
Cole Parmer
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Buffers are traceable and offer ±0.01 accuracy at 77 °F (25 °C). Pack of 20 pouches.
pH 7 is a common mid-range pH meter calibration point. All Oakton pH buffer solutions are manufactured under ISO 9000 quality guidelines and traceable to NIST standard (for meters with 0.01 resolution). A pH/temperature table is printed on the label for accurate calibrations.