15 Pack pH Buffer Calibration Powder Kit For Easy And Precise pH Checks, Mix With 250 mL Distilled Water, Includes 4.01pH 6.86pH And 9.18pH Standards For Accurate Lab Readings

15-Pack pH Buffer Calibration Kit for Accurate Readings
✔️ Includes 15 packets: 5x4.01, 5x6.86, 5x9.18 buffers and 250 mL water

This 15-pack pH buffer calibration kit enables quick, precise pH readings by creating stable reference solutions at standard pH values. Mix with 250 mL distilled water to calibrate pH meters; it's ideal for testing drinking water, aquariums, hydroponics, pools, and spa maintenance. Note: It is not a drinkable solution, please keep it out of reach of children aged 0-3!

✅ 5x4.01 solution (potassium hydrogen phthalate)
✅ 5x6.86 solution (mixed phosphate)
✅ 5x9.18 solution (borax)
✅ 250 mL water per calibration to prepare the reference solution

💡 What is a pH buffer calibration kit used for and how does it improve readings?

This handy kit gives stable reference points to help pH meters stay accurate across testing scenarios. - Handy for labs, classrooms, and hobby projects - Includes 4.01, 6.86, and 9.18 pH standards for reliable calibration - Uses 250 mL water to prepare calibration solutions consistently - Reduces drift and improves repeatability of measurements