Hanna pH 7.01 Calibration Solution, 20 ml, case of 25 pots-and-containers and quantity of flowers/fruits

and quantity of flowers/fruits

Digital device for determining soil pH

allowing extremely quiet operation

Take the "Natural Path" in encouraging the production of blooms

Hanna pH 7.01 Calibration Solution, 20 ml, case of 25 pots-and-containers and quantity of flowers/fruitspH 7 is the most frequently used pH buffer. All Hanna solution bottles come with a pH vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy. Formulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie & 186IIe and NIST 158g S. R. M.).