M10007B is a lab grade pH 7.01 calibration solution certified to meet
the standard with an accuracy of ±0.01 pH removing the inaccuracies
involved with mixing solutions from powder. Sachet packaging means that
you get fresh solution every time. Ideal for infrequent or field use. No
risk of using an expired calibration solution. Milwaukee solutions are
designed to help you achieve reliable and repeatable pH measurements
while extending the life of your electrode.