Achieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 7.01 and 10.01

premium quality pH calibration buffer produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. Reported values are accurate to ±0.01 pH @ 25℃ and are traceable to NIST Standard Reference Materials (SRMs).

Convenience of individual packaging

• Ideal for users that do not calibrate frequently
• Ideal for field use due to portability
• Every sachet is as fresh as the day it was packaged
• Light block packaging prevents oxidation from UV light that could alter the buffer value

Each sachet marked with lot number and expiration date.

• Hanna buffers are specially formulated to maintain their pH value for an unopened sachet.

Color coded label for easy pH buffer value identification

• Easy to identify different buffer values
• Solution does not contain any dyes that may stain the reference cell of a pH electrode