Hanna Instruments pH 4.01 Calibration Solution, 20 mL - Case of 25 Container Size:500 mL ATTENTION:

ATTENTION:

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Hanna Instruments pH 4.01 Calibration Solution, 20 mL - Case of 25 Container Size:500 mL ATTENTION:This buffer value is widely used in water purification plants, in the food industry, and wherever the pH is expected to be slightly acidic Hanna Instruments ph 4 Buffer Specs: Traceable to NIST standards Available in bottles or sealed sachets, complete with or without a certificate of analysis Multiple resolutions for better accuracy NIST Traceability Standardized using a pH meter calibrated by means of two standard solutions prepared from NIST