Achieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready made pH values, Hanna has a certified value calibration solution with an accuracy of ±0.01pH @ 25°C for all requirements. The single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!

• Ideal for users who 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
• Buffer solutions should be stored at 25°C, away from direct sunlight for accurate readings
• Prepared to NIST standards
• Supplied with certificate of analysis