Digital pH Test Meter Calibration Buffer Solution Powder – 15pk

• pH Buffer Solution Powder should be used to help keep your electronic pH meter calibrated.
• Individually packaged helps to keep the solution fresh until use.
• Directions: Completely empty the powder into a clean glass jar, add 8.5 oz of distilled or deionized water, stir until the powder has completely dissolved.
• (5) pH 4.00 @ 25*C; (5) pH 6.86 @ 25*C; (5) pH 9.18 @ 25*C.
• pH solution accuracy is /- 0.01 pH